Top Software Development Companies in California
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Explore Reviewed Software Development Companies in California — Find Skilled Software Developers for Your Project
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452 Companies
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5.0 (72 Reviews)
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5.0 (72 Reviews)
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
79
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your global next-gen commerce growth partner
Magneto IT Solutions stands as a software development company, crafting innovative, AI-driven solutions for ambitious B2C, D2C, and B2B brands. We provide comprehensive software development company services, partnering strategically to build and scale high-performance digital ecosystems. Our expertise spans enterprise platforms, composable architectures, and AI-driven personalization. As trusted custom software developers, we deliver outcome-driven solutions, ensuring every investment drives growth and long-term impact.
See all 10+ Portfolios
Undisclosed/hr
$25,000+
50 - 249
New York, USA
Verified Client Review
CRM & Web Development for Promotional Products Company
Reviewed by: Meizi Yu, Production & Logistics at Product Media Group View all 72 Reviews
5.0 (48 Reviews)
Verified
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Verified agencies on SelectedFirms have passed credibility checks confirming they are legitimate businesses with a proven digital presence. Explore Verification Process
and has 5+ verified reviews
5.0 (48 Reviews)
78
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
78
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineered for the AI Era
Bytes Technolab Inc, an AI-first Digital Product Engineering partner, delivers comprehensive software development company services. We empower startups and enterprises to conceptualize, build, and scale intelligent digital products that solve real-world challenges. Our expertise in custom software development, AI integration, and product modernization ensures scalable, future-ready solutions. As a trusted custom software development company in USA, we drive innovation and sustainable growth for businesses worldwide.
See all 13+ Portfolios
Undisclosed/hr
$1,000 - $10,000
100 - 249
Tomball, USA
Verified Client Review
Webflow Site Development for Creative Agency
Reviewed by: Taylor Powers, Project Manager at Creative Agency View all 48 Reviews
4.9 (16 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering peace of mind
Vention is a premier custom software development company in USA, leveraging over two decades of global expertise to deliver innovative, scalable solutions. We offer comprehensive software development company services, empowering startups and enterprises to accelerate growth and launch new products. Our 3,000+ expert developers provide tailored solutions, from web and mobile apps to AI, ensuring efficiency and competitive advantage. Partner with a trusted global technology leader.
See all 9+ Portfolios
Undisclosed/hr
$25,000+
1,000 - 3,000
New York, USA
Verified Client Review
Mobile App Dev for Sports Tracking Platform
Reviewed by: Brent Varrall, Founder at AllGains View all 16 Reviews
4.8 (22 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom software development that makes a difference
As an innovative global software development firm, Emerline delivers full-cycle engineering services, leveraging expertise in AI, cloud migrations, and complex infrastructure. We serve as a strategic technology partner, offering specialized solutions across Manufacturing, E-commerce, Fintech, and Healthcare. Our capabilities, strengthened by AWS and Microsoft partnerships and ISO certifications, position us among leading custom software development companies USA, ensuring robust, globally relevant solutions.
See all 30+ Portfolios
$50-$99/hr
$25,000+
600 - 1,000
Miami, USA
Verified Client Review
Mobile App Dev & UI/UX Design for Social Networking Company
Reviewed by: Natalie Boll, CEO at Tribela View all 22 Reviews
0.0 (0 Reviews)
Verified
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Verified agencies on SelectedFirms have passed credibility checks confirming they are legitimate businesses with a proven digital presence. Explore Verification Process
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0.0 (0 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Award wining mobile app design and development
We've been building mobile apps since 2014. Not pitching them. Building them. Strategy, design, engineering, QA, launch, and everything after. Most of our clients are startup founders or product leads at growing companies who need a team that can turn a rough idea or a broken V1 into something that actually works, scales, and gets used. That's what we do. We've done it 75+ times. No account managers. No outsourcing to random freelancers. You work directly with our senior team, and we stay with you long after launch day.
See all 9+ Portfolios
$50-$99/hr
$5,000 - $250,000
11 - 49
Irvine, USA
5.0 (47 Reviews)
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
AI-Native Product Engineering Company
Developer Bazaar Technologies is a top-ranked software development firm, transforming ideas into stunning realities with a positive impact. As an ISO 9001:2015 certified custom software development company in USA, we specialize in mobile, AI, and generative AI solutions. Trusted by 450+ industry leaders, with 890+ projects completed and 1.2M+ app downloads, our 93% delivery rate ensures exceptional results for global clients.
View Developer Bazaar Technologies Profile
< $25/hr
$5,000 - $20,000
50 - 100
Fremont, USA
Verified Client Review
Mobile App & API Development for Software Development Agency
Reviewed by: Akhilesh Malviya, Business Development Executive at Infowind Technologies(IT) Pvt. Ltd. View all 47 Reviews
5.0 (4 Reviews)
53
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
53
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Bringing Awesome Ideas to Life
Closeloop Technologies is a global software development and digital transformation partner, offering comprehensive software development company services. With over 12 years of expertise, we empower businesses to streamline operations and accelerate growth. Specializing in custom software development, CRM/ERP implementation, and industry-focused solutions, we connect clients with certified engineers. As one of the leading custom software development companies usa, we deliver scalable, high-performance products, managing the full software lifecycle from strategy to support, ensuring efficiency and enhanced customer experiences worldwide.
See all 6+ Portfolios
$25-$49/hr
$50,000 - $100,000
80+
California City, USA
Verified Client Review
Custom Software Dev for Digital Marketing Agency
Reviewed by: Sahil Miglani, Founder at Midwicket Labs View all 4 Reviews
5.0 (3 Reviews)
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Powering Enterprises with AI and Innovation
Seasia Infotech, a CMMI Level 5 certified software development firm, has delivered innovative custom software development solutions for over two decades. Our proprietary Seasia Agile Model (SAM) and commitment to cutting-edge technologies ensure unparalleled value and quality. We prioritize future-ready strategies, robust data security, and leverage a global talent pool, making us a trusted partner for businesses seeking advanced, sustainable software solutions.
See all 40+ Portfolios
$25-$49/hr
$5,000+
500 - 999
Emeryville, USA
Verified Client Review
E-Commerce Engine for Web Dev Firm
Reviewed by: William Akuoko, CEO at ADEHYEE INFOTECH LTD View all 3 Reviews
5.0 (12 Reviews)
49
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
49
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
AI-driven custom software development for complex digital products.
NEKLO stands out among leading software development companies, globally recognized for its product engineering expertise. We deliver comprehensive web, mobile, and eCommerce services, crafting end-to-end custom software solutions. Specializing in high-load eCommerce projects, our team of 15 certified Magento and 40+ t-shaped developers has successfully completed over 50 projects, ensuring long-term support. Partner with us to launch your next innovative software development initiative.
See all 2+ Portfolios
$150-$199/hr
$100,000+
200 - 250
Novato, USA
Verified Client Review
E-Commerce Dev for E-Commerce Dev Company
Reviewed by: Sofiia Oleksenko, Customer Care Manager at IT Delight View all 12 Reviews
5.0 (5 Reviews)
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Drive Your Digital Transformation Journey
OptiSol Business Solutions is a software development firms, delivering cutting-edge Native Web and Mobile Applications. We provide innovative software development solutions, harnessing Generative AI and pioneering AI/ML services on AWS and Azure Cloud for rapid project delivery. Our expertise spans Quality Engineering and Enterprise Services, backed by 14+ years of global experience. As a Microsoft Gold and AWS Consulting Partner, we ensure excellence through consultative engagement and design thinking.
See all 2+ Portfolios
< $25/hr
$5,000 - $25,000
300 - 500
Sacramento, USA
Verified Client Review
Managed IT Services for Software Testing & QA Services Firm
Reviewed by: Jaleel Mohamed, Director at Novature Tech Private Limited View all 5 Reviews
5.0 (2 Reviews)
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Ripening Ideas Into Apps
RipenApps stands as a custom software development company in usa, transforming innovative concepts into digital realities. Our dedicated team of over 120 tech experts delivers exceptional custom software development solutions, leveraging cutting-edge technologies like AI, IoT, and Machine Learning. With a track record of 400+ successful projects and significant investor funding, we ensure high client satisfaction by bridging the gap between brilliant ideas and their digital execution. We empower businesses globally to thrive in the digital landscape.
See all 3+ Portfolios
$25-$49/hr
$10,000+
50 - 249
Ontario, USA
Verified Client Review
App Development for Recovery Community Platform
Reviewed by: Miranda Satterly, Product Manager, In The Rooms View all 2 Reviews
4.9 (11 Reviews)
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
AI-enabled product engineering partner
EffectiveSoft stands among leading custom software development companies USA, delivering impactful digital solutions. We empower businesses to drive growth, from product creation to scaling complex systems, with a user-centric design thinking approach. As a trusted custom software development firm, our global team of 360 experts leverages partnerships with Microsoft, AWS, and Oracle, ensuring agile, ISO/IEC 27001:2022 certified excellence in AI integration and cloud solutions.
See all 3+ Portfolios
$50-$99/hr
$25,000+
300 - 999
San Diego, USA
Verified Client Review
BI & Analytics Services for Business Intelligence Company
Reviewed by: Dmitry Chashnik, CEO at Cobit Solutions View all 11 Reviews
5.0 (4 Reviews)
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web & Mobile Development | Rapid Prototyping
SF AppWorks is a progressive digital agency, recognized as a leading software development firm dedicated to crafting innovative solutions. We empower companies, organizations, and entrepreneurs worldwide to explore and develop cutting-edge technologies that genuinely improve lives. Specializing in custom software development, our expertise transforms complex challenges into intuitive, high-performing applications, ensuring global impact and sustained growth for our partners.
See all 6+ Portfolios
$50-$99/hr
$10,000+
50 - 249
San Francisco, USA
Verified Client Review
Web & Mobile Dev for Nonprofit Social Mission Org
Reviewed by: Dean Heistad, Former Head of Technology at AARP Life Reimagined Division View all 4 Reviews
5.0 (10 Reviews)
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
48
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
You Dream It, We Build It.
Idea Maker transforms innovative concepts into scalable digital products. As leading custom software developers, we craft mobile apps and bespoke software platforms, empowering organizations to launch new offerings and modernize systems. Our comprehensive approach covers strategy, UX/UI, development, and ongoing support, focusing on clean architecture and user-first design. We are among the top custom software development companies USA, delivering AI-powered applications and web solutions that drive business outcomes for clients worldwide. Let’s build what’s next.
View Idea Maker Profile
$100-$149/hr
$10,000 - $1,000,000
10 - 20
Irvine, USA
Verified Client Review
Professional Voice Acting Website with Custom AI Assistant
Reviewed by: Vyvynn Dela Cruz, Owner View all 10 Reviews
5.0 (8 Reviews)
5.0 (8 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Credencys - Product Information Management Company
Credencys, a trusted PIM/MDM implementation partner, excels in delivering robust software development company services. As a leading custom software development company in usa, we craft tailored digital solutions, including PIM/MDM, DAM, and DXP, that drive operational efficiency and strategic decision-making. Our global team of experts ensures results-driven, user-centered solutions for diverse industries worldwide, empowering businesses with unified, trusted data.
View Credencys Profile
$25-$49/hr
$10,000+
50 - 249
La Palma, USA
Verified Client Review
Marketing Services for Fast Food Chain
Reviewed by: Aashish Koul, Assistant Marketing Manager at McDonalds View all 8 Reviews
5.0 (8 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
IT Consulting & Development Services
A3Logics is a custom software development firm, empowering businesses worldwide with cutting-edge solutions. Specializing in AI, Blockchain, and IoT, we deliver secure, scalable custom software development solutions, including product engineering and re-engineering. Our expertise drives operational efficiency and sustained growth across diverse industries, ensuring clients excel in the evolving digital landscape. We tailor impactful technology to meet unique business needs.
See all 5+ Portfolios
$25-$49/hr
$10,000+
250 - 499
Carlsbad, USA
Verified Client Review
Web Dev & QA for News Website
Reviewed by: Jaime Enoch Ortega, Administrator at The Daily Journalist View all 8 Reviews
5.0 (5 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
World-Class Full-Cycle Engineering Partner
DreamX is a high-end custom software development firm, building dedicated product teams globally. We operate as your internal technical department, transforming complex ideas into scalable digital assets. Specializing in end-to-end web and mobile application development across 15+ industries, our process eliminates technical uncertainty. We deliver high-integrity custom software development solutions, ensuring transparency, scalability, and technical certainty. Our Ownership Mentality, backed by a money-back guarantee, ensures resilient, revenue-driving products you can confidently grow.
View DreamX Profile
$25-$49/hr
$5,000 - $10,000
25 - 40
San Francisco, USA
Verified Client Review
Website Design for IT Outstaffing Company
Reviewed by: Iryna Dubyk, Employer Brand Manager at ALLSTARSIT View all 5 Reviews
4.9 (4 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering partner for digital agencies
GetDevDone, a trusted software development company since 2005, delivers reliable digital solutions to marketing agencies and brands. We specialize in comprehensive software development company services, experience design, and custom AI across finance, media, and eCommerce. With over 131,000 projects for 15,150+ agencies globally, we stand among leading software development firms, building scalable platforms that transform complex digital delivery into predictable margin engines.
See all 14+ Portfolios
$50-$99/hr
$5,000+
250 - 999
San Francisco, USA
Verified Client Review
WordPress Dev for Automotive Solutions Company
Reviewed by: David Farmer, CEO at intice View all 4 Reviews
0.0 (0 Reviews)
45
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
45
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Delivering Value Digitally
Ayatas Technologies, established in 2006, boasts an 18-year legacy as a pioneering force in software development. We consistently deliver cutting-edge digital solutions and services to a diverse global clientele. Our commitment to excellence and passion for technology make us a trusted partner for businesses seeking comprehensive, tailored software development solutions. Explore our expert software development company services for innovative digital transformation.
See all 11+ Portfolios
$100-$149/hr
$5,000 - $50,000
50+
Sacramento, USA
5.0 (8 Reviews)
45
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
45
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Envision, Leverage, Infinite
CMARIX excels as a technology outsourcing partner, delivering exceptional software development company services. Our 170+ experts globally craft innovative Enterprise Software, Mobile Applications, and eCommerce websites. With 1100+ web and 290+ mobile applications tailored across diverse domains, we provide custom software development solutions that simplify outsourcing. We are passionate about our creative work culture and ensuring complete client satisfaction worldwide.
See all 3+ Portfolios
$25-$49/hr
$5,000+
50 - 249
Temecula, USA
Verified Client Review
Web Development for Shoe Manufacturer
Reviewed by: Fatih Hekimoglu, Director of International Sales at Shoe Manufacturer View all 8 Reviews
5.0 (7 Reviews)
44
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
44
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Driving Synergy Assuring Growth
SynergyTop is a custom software development firm, delivering future-ready digital solutions globally. Our certified experts craft custom software, including web, mobile, PWAs, and e-commerce platforms, alongside custom ERP development. Since 2014, we've successfully delivered 200+ websites and 50+ mobile apps across diverse industries. As a recognized custom software development company in usa, SynergyTop combines unparalleled experience and rapid execution, ensuring exceptional project outcomes for businesses worldwide.
See all 45+ Portfolios
$25-$49/hr
$1,000+
50 - 250
San Diego, USA
Verified Client Review
Custom E-Commerce Development for Wellness Company
Reviewed by: Steve Scruton, Managing Partner at Wellness Gifted View all 7 Reviews
5.0 (12 Reviews)
44
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
44
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your trusted software development partner
Diffco empowers businesses with dedicated senior custom software developers, accelerating product success worldwide. With over 16 years in mobile, web, and AI solutions, we deliver secure, scalable custom software development tailored to your goals. Our award-winning team emphasizes transparent processes, clear communication, and dedicated project teams. Partner with Diffco to manage your full product lifecycle, launching faster and scaling efficiently.
View Diffco Profile
$50-$99/hr
$50,000+
10 - 49
San Jose, USA
Verified Client Review
Mobile App and Backend Development for MedTech Client
Reviewed by: Julia Platova, VP of Strategic Partnerships View all 12 Reviews
0.0 (0 Reviews)
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
An Enterprise AI development Company
Azilen Technologies excels as a custom software development firm, delivering transformative AI, Data, and HRTech solutions for digital transformation. Our customer-centric approach fosters powerful partnerships, optimizing processes and revolutionizing experiences with AI-driven software development solutions. With expertise in Generative AI, Data Engineering, CloudOps, and DevOps, our skilled team crafts high-quality, secure, and scalable software across diverse sectors like HRTech, FinTech, and Manufacturing.
See all 11+ Portfolios
$25-$49/hr
$10,000+
250 - 400
San Francisco, USA
0.0 (0 Reviews)
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
YUAL — products that prove themselves.
Most software projects don't fail because developers can't code. They fail because the team builds the wrong thing, too early, with no way to measure if it worked. And AI made this worse — writing code is cheap. Deciding what to write isn't. That's our job! We read your idea before we build. We name what's broken before you pay. We ship the smallest system that produces real evidence. After launch, we stay with you until you know whether to scale, pivot, or stop. Together as partners. Fintech, healthcare, AI/ML, real estate, insurance, automotive, education, igaming.
See all 11+ Portfolios
Undisclosed/hr
$3,500 - $5,500
10 - 49
Folsom, USA
0.0 (0 Reviews)
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Leading Los Angeles Mobile App Developers
AppMakers USA is an award-winning custom software development firm, delivering quality apps on time and on budget. Our 30+ experts craft powerful enterprise systems for leading companies and bring startup visions to life. Specializing in UI/UX, mobile, web, and custom software development, our engineers leverage cutting-edge technologies. As a trusted custom software development company in USA, we prioritize genuine client relationships and offer free consultations to explore your vision.
See all 69+ Portfolios
$50-$99/hr
$10,000 - $15,000
25 - 50
Los Angeles, USA
5.0 (10 Reviews)
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
43
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Software & App Development Company
Softermii is a full-cycle product development company with deep expertise in innovative software, transforming good ideas into great products. We prioritize quality and your business goals, offering flexible cooperation models with competitive budgeting and guaranteed on-time delivery. As a leading custom software development firm, we provide comprehensive software development company services, including Web/App Development and UI/UX Design, across sectors like Healthcare and FinTech. Partner with us for exceptional, globally accessible solutions.
View Softermii Profile
$25-$49/hr
$25,000 - $999,999
100 - 200
Los Angeles, USA
Verified Client Review
Custom Mobile and Web Development
Reviewed by: Walid Farghal, Director General at Events10X View all 10 Reviews
4.7 (4 Reviews)
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Create - Inspire - Deliver
Kodexo Labs transforms bold ideas into intelligent digital products. As a leading custom software development firm, we empower startups and enterprises with smart, scalable AI software development solutions. Specializing in generative AI, machine learning, and mobile/web apps, our proven track record includes 79+ successful projects and global trust. We engineer for business impact across diverse industries, delivering real results. Partner with us to build smarter, faster, and more secure digital products.
See all 11+ Portfolios
$25-$49/hr
$10,000+
50 - 249
Austin, USA
Verified Client Review
Web & AI Development for Healthcare Consulting Company
Reviewed by: Christopher Brigham MD, President at Brigham and Associates, Inc. View all 4 Reviews
5.0 (7 Reviews)
5.0 (7 Reviews)
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Top Rated Software Development & Design Company
MojoTech is an innovative software development company that integrates strategy, engineering, and design to create results-driven digital products and experiences. We have written the playbook for how to discover, define, design, and build tomorrow's innovations, empowering companies to unlock future market potential, maximize returns on innovation, and drive transformational change.
See all 3+ Portfolios
$150-$199/hr
$100,000+
50 - 70
Providence, USA
Verified Client Review
Web Development for State Association
Reviewed by: Leo Pellerin, CIO at United Way of Connecticut View all 7 Reviews
0.0 (0 Reviews)
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Cutting-Edge Next Generation Ecommerce Solutions
Elsner Technologies Pvt. Ltd. stands as a software development agency, boasting over 19 years of expertise in crafting innovative digital solutions. We empower businesses globally, delivering customized software that drives success and enhances operational efficiency. Our dedicated team of Custom Software Developers excels at tailoring robust solutions to each client's unique requirements, ensuring a powerful online presence and sustained growth.
See all 9+ Portfolios
$25-$49/hr
$25+
200 - 300
Fremont, USA
5.0 (10 Reviews)
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Data-Driven SEO Agency
Media Search Group is a digital marketing agency that provides a wide range of services, including SEO, web design and development, social media marketing, and content marketing. Media Search Group has a team of experienced professionals who are experts in their respective fields. The company offers a customized approach to each client, ensuring that they receive the best possible service. Media Search Group is committed to helping businesses grow their online presence and reach new customers. The company has a proven track record of success, and its clients include a variety of businesses from a variety of industries. Media Search Group is a reliable and trustworthy partner for businesses of all sizes.
View Media Search Group Profile
$25-$49/hr
$1,000 - $5,000
20 - 60
Huntington Beach, USA
Verified Client Review
Exceptional SEO Services
Reviewed by: Raghav Suri, CEO & Founder at Semantics Evolution View all 10 Reviews
4.9 (8 Reviews)
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
De[coding] Capabilities
Ezulix is a custom AI software development company specializing in engineering hyperautomation solutions across all business industries. Certified as a CMMI Level 5 IT company, Ezulix caters to the digital transformation and overall IT operations needs of enterprises, startups, SMBs, and large corporations. It uses a consulting-first approach and carefully analyzes the existing workflows of a business, strategizes a step-by-step automation roadmap, and curates an AI-powered business process automation solution for businesses, helping businesses reduce manual workload at speed and scale with intelligent workflows. In addition to business software solutions, Ezulix also specializes in first-of-its-kind mobile app development. It fulfils unique app development requirements with dedicated app development teams.
View Ezulix Software Profile
Undisclosed/hr
$7,000+
50 - 100
Downey, USA
Verified Client Review
Mobile App & Web Revamp & Maintenace for Car Manufacturer
Reviewed by: Bob Laishley, CEO at Caterham View all 8 Reviews
4.7 (5 Reviews)
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
41
SF Score
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Software made simple
We Build products and teams for startups, SMBs and enterprises. With CyberCraft, you get access to the top software engineering talents from the very beginning all the way to the end result. We are here to connect your initial idea to the final product. If you're looking for qualified and experienced remote developers to join your team, you've come to the right place. CyberCraft has been building dedicated development teams and providing IT staff augmentation services to clients around the world for over six years. Our clients include SolanoLabs, Polymorph, Allgress, and OptNet. We build remote dedicated developments teams which include only experienced and trusted developers. The teams are organized according to the desired tech stack and your requirements. Whether you need a large team or just a few developers, whatever technology or framework your stack includes, we've got you covered. Get in touch right now and receive a free consultation with a detailed estimate!
View cybercraftinc Profile
$25-$49/hr
$50 - $10,000
70 - 120
San Francisco, USA
Verified Client Review
Dev Staff Augmentation for Animal Traceability Software Co
Reviewed by: Brian Morrow, Directorat Animal Traceability Software Company View all 5 Reviews
5.0 (8 Reviews)
5.0 (8 Reviews)
41
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
41
SF Score
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Agile Consulting & Complex Software Development
ROCKETECH is a software development company that specializes in analytics-driven mobile and website development. Their team has released 100+ products for 70+ startups and enterprises as IT consults. Their solutions are recognized as The Apps Of The Day on App Store, receive recognition from Grammy awards, and are highly acclaimed in their niches. They work with complex industries and narrow niches, delving into deep details.
See all 1+ Portfolios
$50-$99/hr
$5,000+
10 - 49
San Francisco, USA
Verified Client Review
MVP Dev for Construction Software Company
Reviewed by: Tristan Hoffmann, Founder at Filiko LLC View all 8 Reviews
5.0 (8 Reviews)
5.0 (8 Reviews)
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Software development services with a high standard
Steelkiwi is a renowned Ukraine-based website development company that also has a sales office in the USA. In its 10 years on the market, the company has collaborated with over a hundred clients across different niches from education to healthcare to social media networking to on-demand and recruitment. With their prime focus on web designing & development, they build unique and cost-effective solutions. Python/Django is what helps Steelkiwi cover all those industries, building different types of software solutions fast and efficiently. Other web technologies they use include Node.js, React.js, Angular.js, and Vue.js. As for mobile development, they use Swift, Kotlin, Java, and Flutter. Customers that trust Steelkiwi include Hoopit, Atruchecks, Can Tho, Meddy.co, Snaapy, Viridian Advisory, and many more.
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$50-$99/hr
$50,000+
50 - 249
Belmont, USA
Verified Client Review
Custom E-Commerce Dev for Online Marketplace
Reviewed by: Marcelo Travaglia, Founder & CEO at QNIQR View all 8 Reviews
4.8 (10 Reviews)
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web and Mobile apps, Machine Learning, IoT
With over 170 successfully delivered projects and a team of 140+ professionals, Cleveroad is a trusted software development company with a strong presence in the USA and India. Known for its expertise in eCommerce website development, Cleveroad also delivers custom iOS and Android app development, web development, UI/UX design, and quality assurance services. Our portfolio includes innovative digital products such as large-scale fitness platforms, P2P marketplaces, school community software, global sports networks, and ride-sharing solutions. By combining technical excellence with user-centric design, Cleveroad builds scalable, high-performance solutions that help businesses innovate, grow, and compete effectively.
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$25-$49/hr
$1,000+
50 - 249
Los Angeles, USA
Verified Client Review
IT Staff Augmentation for IoT Infrastructure Provider
Reviewed by: Brendan Carroll, CEO at IoT Infrastructure Provider View all 10 Reviews
4.8 (6 Reviews)
4.8 (6 Reviews)
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Nearshore Agile Software Development Firm
Admios stands out among Custom Software Development Companies, empowering CTOs, VPs, and directors with exceptional software engineering talent. We offer fast, easy recruiting and onboarding, providing experienced developers across diverse industries. Admios ensures seamless collaboration, aligning with your operational hours for optimal project success. From custom software development solutions and architecture to QA, integrations, and ongoing support, we deliver comprehensive expertise. Partner with us for reliable, high-quality software development.
View Admios Profile
$50-$99/hr
$50,000+
50 - 249
San Francisco, USA
Verified Client Review
Web Dev Staff Augmentation for PropTech Startup Company
Reviewed by: Irene Tollinger, Co-Founder at Acre View all 6 Reviews
5.0 (6 Reviews)
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
40
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We don`t just code - we solve your business needs
Codemotion is a leading eCommerce development company in the USA. They’ve been working since 2011 and now have an in-house team of 100 Ninjas, 120+ MVPs launched, 99% successfully completed work. Their eCommerce developers have expertise in developing websites & apps with simple conventions in mind so you don’t have to waste time with configurations. They follow the highest industry standards and are a pro at user experience. Being the top-notch eCommerce development company in usa, they provide services right from idea to development to support.
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$25-$49/hr
$5,000+
50 - 249
Redwood City, USA
Verified Client Review
5.0 (5 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
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Launch Your First-Class,Scalable and Customizable White Label DeFi Wallet
Invest in a first-class white-label wallet that is customizable, offers rapid scalability and enriches the wallet experience of the users. We have years of experience and expertise in converting an existing wallet solution into a wallet that meets your business needs and can be deployed in the least turnaround time. We implement a human-centric approach while developing wallets, and our agile development approach gives you a competitive advantage over others. Whether it's a simple or a complex wallet solution, trust us as we will leave no stone unturned in fulfilling your expectations. Learn more by scheduling a free consultation today!
View Antier Solutions Profile
$300 </hr
$10,000,000+
600+
Palm Springs, USA
Verified Client Review
Crypto Wallet Payment App for Construction Recruitment Firm
Reviewed by: Joy Kelly, SVP at Avolon Group View all 5 Reviews
0.0 (0 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Enterprise Web & Mobile App Development Company
With over 23+ years of web and product development experience, Carmatec is a trusted software development company in Bangalore, India and USA, delivering 20,000+ successful projects across 30+ industries. We help startups, SMBs, and enterprises accelerate digital growth through custom web and mobile app development, achieving up to 6x higher conversion rates and 97% user satisfaction. Our expertise extends deep into cloud computing, including cloud-native application development, cloud infrastructure setup, migration, and managed cloud services. Backed by a global delivery model and strong local presence, Carmatec combines technical depth, scalable resources, and cost-effective solutions to help businesses innovate, scale, and stay competitive in a rapidly evolving digital landscape.
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$25-$49/hr
$1,000+
50 - 249
Los Angeles, USA
4.9 (7 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Agile & Embedded Development Company
AIS Technolabs stands as a prominent worldwide provider of IT solutions, extending a range of services encompassing web and mobile app development, game development, and digital marketing. Backed by a proficient team and a well-established history of dispensing top-tier projects, we cater comprehensively to businesses of all magnitudes. Our inventive resolutions are meticulously fashioned to align with your distinct requisites, propelling you towards the accomplishment of your digital ambitions with precision. Embark on a journey through technology's prowess with AIS Technolabs and unveil novel prospects for your enterprise.
View AIS Technolabs PVT LTD Profile
$50-$99/hr
$25+
250+
Pacifica, USA
Verified Client Review
Mobile App Development for Business Services Company
Reviewed by: Divya Divullu, Senior Project Manager at Business Services Company View all 7 Reviews
0.0 (0 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
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Enabling Digital Transformation
Webs Optimization Software Solution is a trusted and leading Offshore IoT, Web and Mobile Application Development Company which is a single-stop source to provide digital Transformation solution for all your business requirements. Being Quality focused and process Oriented we are committed to provide cutting-edge solutions and ensure to deliver robust, reliable and efficient solutions through our outspread range of technologies.
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< $25/hr
$2,000 - $4,000
70 - 80
San Jose, USA
4.7 (5 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
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Design Innovate Create
CodeStore helps you fill the gaps in your engineering capacity with a team of pre-vetted and result-oriented software engineers committed to building end-to-end custom software solutions for clients across the globe.
View CodeStore Technologies Profile
$25-$49/hr
$500 - $100,000
50 - 95
San Francisco, USA
Verified Client Review
Software Dev for Engineering Company
Reviewed by: Carl Dickens, President at Enterprise Data Solutions, Inc. View all 5 Reviews
5.0 (5 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Global Tech Consulting & Engineering Company
Global Tech Consulting & Engineering Company Binariks is a global technology consulting and engineering company focused on regulated industries. We architect secure, audit-ready digital platforms for Healthcare, Pharma & Life Sciences, and Insurance — where compliance, data integrity, and operational resilience are non-negotiable. Engineering Peace of Mind in Regulated Industries While others prioritize delivery speed alone, Binariks operates at the intersection of advanced Cloud & AI engineering and strict regulatory compliance. We help companies innovate without compromising HIPAA, FDA, GxP, PCI DSS, or GDPR requirements. Industry Focus Healthcare & MedTech FDA-compliant Software as a Medical Device (SaMD) Telehealth and Remote Patient Monitoring platforms EHR/EMR modernization and FHIR/HL7 interoperability HIPAA-compliant cloud architectures Secure medical device and wearable integrations Pharma & Life Sciences GxP-compliant clinical data platforms R&D automation and AI-driven data workflows FDA 21 CFR Part 11–aligned systems Secure data engineering for clinical trials Cloud modernization for research environments Insurance & InsurTech Legacy core system modernization Claims processing automation (FNOL systems) Fraud detection and AI-driven risk modeling PCI DSS–aligned architectures Secure cloud-native transformation What Differentiates Binariks Certified Compliance & Risk Mitigation ISO 13485 (Medical Devices) ISO 27001 (Information Security) ISO 9001 (Quality Management) HIPAA & GDPR expertise We understand the cost of non-compliance — and engineer systems accordingly. Cloud-Native & AI Mastery AWS Select Consulting Partner Google Cloud Partner Microsoft Partner We modernize legacy systems into secure, scalable, cloud-native architectures that pass audits and scale globally.
View Binariks Profile
$50-$99/hr
$10,000+
99 - 199
Torrance, USA
Verified Client Review
IT Staff Augmentation for Hedge Fund
Reviewed by: Merritt Graves, Head of Global App Dev & Support at Hedge Fund View all 5 Reviews
4.9 (5 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
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Get things Solvd!
Solvd, Inc. is a global software engineering company with 11+ years in business. The custom software development company has headquarters in the USA, 7 development centers in Ukraine, Poland, Georgia, Argentina, Brazil and Mexico, and a sales office in Hungary.
View Solvd, Inc. Profile
$25-$49/hr
$10,000+
800+
Roseville, USA
Verified Client Review
Test Automation Services for FinTech Company
Reviewed by: Alex, Principal System Automation Enginneer at Car IQ Inc. View all 5 Reviews
5.0 (6 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
A Product Engineering company
HashStudioz Technologies Inc. is an award-winning product development company that serves clients from entrepreneurs to Fortune 500 companies with innovative information technology solutions. The company began operations in 2018 and has since expanded to include more than a thousand technical experts, engineers, and professionals. Facilitating a wonderful client experience and clever, new solutions depends on timely delivery and post-development assistance. They have successfully completed over 200+ projects since its beginning. The company also offers cutting-edge technologies including the Internet of Things (IoT), Blockchain, Travel Technologies, Cloud Computing, E-commerce, and a Marketplace for Services.
View HashStudioz Technologies Inc Profile
< $25/hr
$20,000 - $50,000
250 - 300
Altadena, USA
Verified Client Review
It's a pleasure to work with them
Reviewed by: Ryan Kenning, Project Manager at NEC Financial Services View all 6 Reviews
4.8 (6 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web Design & App Development Los Angles
Sunlight Media LLC is an award winning website & mobile app development company located in downtown Los Angeles. The company specializes in web design, mobile application development, graphic design, SEO, SMM, PPC and brand development.
View Sunlight Media LLC Profile
$50-$99/hr
$1,000+
2+
Los Angeles, USA
Verified Client Review
Website Design & Dev for Yoga & Personal Training Studio
Reviewed by: Kay Abdullah, Yoga Enthusiast at Kay Fit Flow LLC View all 6 Reviews
0.0 (0 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Software Testing Company
QA Genesis is a distinguished software development agency committed to crafting exceptional digital solutions. Since 2014, our award-winning team has delivered robust custom software development services, integrating unparalleled quality assurance from inception. With 120+ experts and 200+ clients, including Fortune 500 companies, we build quality into every project. Our agile, globally-present team ensures timely support, empowering your vision with reliable, high-performance software.
View QA Genesis Profile
$25-$49/hr
$5,000+
120+
Torrance, USA
0.0 (0 Reviews)
38
SF Score
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38
SF Score
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Revolutionize Your Support with Helpdesk Management Software
Elevate your business with DeskXpand, a premier custom software development firm. We engineer robust software development solutions designed to unify complex customer management, boosting operational efficiency. Imagine a single interface providing instant access to ticket histories, real-time communication, and canned responses, ensuring swift, effective service worldwide. Partner with us to transform your customer interactions and drive unparalleled success.
View Deskxpand Profile
< $25/hr
$900+
200 - 300
Burbank, USA
0.0 (0 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
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We build innovative technology.
Kingsmen Digital Ventures is a premier custom software development agency, empowering businesses with innovative solutions. We specialize in designing, developing, and deploying bespoke software tailored to unique needs. Our comprehensive offerings include product engineering, mobile and web application development, robust cloud-based solutions, and insightful data analytics. As a trusted software development service provider, we are dedicated to delivering exceptional quality and support, helping clients achieve their digital objectives globally. Partner with us for your next transformative project.
View Kingsmen Digital Ventures Profile
$100-$149/hr
$25,000+
10 - 50
Irvine, USA
0.0 (0 Reviews)
38
SF Score
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38
SF Score
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Innovate | Accelerate | Transform
Veltris empowers organizations worldwide as a trusted technology partner. This distinguished software development firm ignites innovation, expertly leveraging Digital, AI, and Industry 4.0 technologies to craft bespoke software development solutions. We accelerate technology transformations, ensuring clients achieve strategic objectives with cutting-edge, globally relevant expertise. Choose Veltris for impactful digital evolution and unparalleled credibility.
View Veltris Profile
N/A
$25,000 - $10,000
250 - 1,000
Milpitas, USA
Choosing a Software Development Partner for Scalable Digital Solutions
Written by
Ashutosh Tripathi
Updated:
14 min read
How many Software Companies are there in California?
There are approximately 12,924 software companies in California, USA, according to a recent dataset.
These firms fall into two main types: single-owner operations and brand-affiliated companies, where one dataset cited 14,343 as single-owner.
If we combine both types, the state has about 15,000 entities operating in the software industry.
Thus, when searching for software companies in California, expect ~12,900 to 15,000 firms in total, covering both small and larger operations.
Find the Best Software Development Companies in California?
Finding the best software development company in California means navigating a vibrant, competitive tech ecosystem in the world.
From Silicon Valley to San Diego, Los Angeles, and San Francisco, the state hosts thousands of qualified firms.
Choosing the right one involves more than a quick online search; it requires thorough research and careful vetting.
Your ideal partner understands your industry, aligns with your technology needs, communicates clearly, and stays within your budget and timeline.
Whether launching a startup in Santa Barbara or scaling a product in Silicon Valley, success depends on selecting the right development partner.
How SelectedFirms Helps You Find the Right Agency in California :
SelectedFirms simplifies your search by curating verified California software development companies with authentic client reviews, portfolio analysis, and service ratings.
- Explore regional expertise-from Silicon Valley’s AI innovators to Orange County’s SaaS specialists through a single platform.
- Easily filter by budget, location, and technical specialization to shortlist agencies that match your exact business needs.
- Save time and reduce risk by connecting only with vetted, experienced development firms that have proven track records in your industry.
Ready to Find Your Ideal Partner?
Visit SelectedFirms today to explore and connect with California’s top-rated software development companies for your next project.
Top Tech Hubs for finding Software Companies in California
1. Silicon Valley
Silicon Valley is the world's leading tech hub, home to giants like Apple, Google, and Meta. Covering cities such as San Jose, Palo Alto, and Mountain View, it thrives on the technical talent from Stanford and UC Berkeley, fostering innovation in AI, biotech, and enterprise software.
2. San Francisco
San Francisco, a renowned tech hub, hosts giants like Salesforce and Uber, startups, venture capital, and top universities fostering innovation.
3. Sacramento
Often called the “next Silicon Valley,” Sacramento is a fast-growing tech hub with strengths in biotech, manufacturing, and govtech.
Backed by California State University and companies like Intel, it offers skilled talent, lower costs, and a rising startup scene, making it a solid alternative to the Bay Area for those exploring Software Development Companies in California.
4. Los Angeles
Los Angeles, and especially Silicon Beach, is a buzzing tech hub where entertainment, media, aerospace, and AI all come together. Between Snap, Hulu, and SpaceX, and talent coming out of USC and UCLA, LA becomes an exciting, dynamic, and yet competitive working environment for software developers.
5. Pasadena
Pasadena is an emerging tech hotspot in California, fueled by Caltech and the Jet Propulsion Lab, with a strong focus on AI, robotics, and research-driven software development.
Companies like Tetra Tech and local startups contribute to a specialized, innovation-first ecosystem, making it a prime location for advanced software solutions in California.
6. San Diego
The city of San Diego is one of the main centers of biotech and wireless tech, powered by Qualcomm and UCSD. Since there has been an increasing demand in life sciences, medtech software, and cybersecurity, it presents great opportunities for tech professionals in these fields.
It carries a strong research culture and a skilled workforce, which is perfect for the cultivation of innovation in biotech and communications.
What sets apart top Software Companies in California from Other US States?
California’s long history as a tech pioneer, its unmatched concentration of talent and tech companies, enormous venture capital funding, culture of innovation, and diverse industry strengths make it the leading state for software development in the US.
With over 57,000 tech businesses in the state, California has more tech companies than anywhere else in the country.
Additionally, it attracts and trains the world's best tech talent. Universities like Stanford, UC Berkeley, Caltech, and UCLA produce highly skilled software engineers every year.
Besides Silicon Valley, software development companies in California are spread across some of these prominent places.
Los Angeles is where entertainment technology gets developed, San Diego is where biotech flourishes, and in Orange County, e-commerce and automotive technology grow. Software engineers get some of the best salaries in the US in the states of California. This attracts top talent, forcing companies to keep innovating.
With the cost of living being high, compensation and career options are usually worthwhile.
No other US state combines these factors to the same extent; California is therefore the preferred state for programmers, start-ups, and tech giants.
What Processes do top Software Development Companies in California follow?
California has a reputation for using plenty of software development methodologies. Agile is one of the methodologies, with some 94% of organizations using it, and of those with 56% use Scrum.
Yet, when it comes to the software development process itself, top-notch California software companies operate according to the traditional seven-step Software Development Life Cycle (SDLC), rather than tailoring it to their projects.
The typical 7-step SDLC process includes:
- Requirement Gathering & Analysis – Understanding and defining functional and non-functional requirements.
- Planning – Preparing project plans and resource allocation.
- Design – Creating the software architecture, UI/UX layouts, and prototypes.
- Development – Writing and integrating code based on design.
- Testing – Conducting unit, integration, system, and user acceptance testing.
- Deployment – Releasing the software to production environments.
- Maintenance – Providing ongoing support, updates, and bug fixes.
Top companies in California typically customize this process based on the project's complexity and client needs, often performing steps iteratively or in parallel to enhance efficiency and flexibility.
This structured approach is aligned with industry standards and business goals. Considering the latter, the SDLC is the founding concept of any software development discipline in California.
How Much Do Software Development Companies in California Cost?
An average software development company in California charges hourly rates between $80 and $200+, depending on complexity and senior skill level.
For monthly cost: with a small dedicated team working full-time (160 hours), expect roughly $12,800 to $32,000+ per month.
Average project cost for custom enterprise software typically starts around $100,000 to $250,000, and can exceed $1,000,000 for large systems.
For smaller apps or MVPs the project cost might land near $20,000 to $50,000. Always clarify scope, team size, tech stack and timeline to get precise quotes.
A Detailed Cost Breakdown of Software Companies in California.
Hourly Rates
-
Entry-level/Smaller Agencies: $75 – $175/hr
-
Mid-range Agencies: $200 – $300/hr
-
Enterprise-level Firms: $250 – $850+/hr
These rates include services like UI/UX design, full-stack development, DevOps, QA, and project management.
Cost by Technology Stack
- Frontend (React, Angular, Vue): $100 – $250/hr
- Backend (Node.js, Python, Java, .NET): $125 – $300/hr
- Mobile App (iOS/Android/Flutter): $175 – $350/hr
- AI/ML & Blockchain Projects: $200 – $500/hr (or more, depending on seniority and specialization)
High-demand stacks like AI, Machine Learning, and Blockchain cost more due to the specialized expertise required.
Monthly Retainer Models
- Basic Support & Maintenance: $10,000 – $25,000/month
- Full Development Team (4–6 members): $35,000 – $100,000+/month
Ideal for long-term projects where a dedicated team is needed to work across multiple product cycles.
Cost by Project Complexity & Timeline
- Small Projects (MVPs, landing pages): $20,000 – $100,000 (2–4 months)
- Mid-size Custom Applications: $100,000 – $500,000 (4–8 months)
- Enterprise-Grade Software/Platforms: $500,000 – $1M+ (6–12+ months)
More complex projects often include custom APIs, advanced integrations, cloud infrastructure, AI features, or fintech modules, all of which significantly impact cost and development duration.
Pro Tip: Avoid Freelancers for Complex Projects
Freelancers may seem cheaper initially for complex projects, but can become more expensive over time due to slower turnaround and less support. Hire freelancers for simple tasks and agencies for comprehensive, up-to-date development.
Which Technologies Do California Software Development Companies Specialise In?
California Software Development companies are known for their very broad and deep expertise across emerging technologies and established development stacks.
Technologies such as mobile app development, Web development, Artificial Intelligence, Cloud Computing, and DevOps.
With such a rich tech ecosystem to draw from, some of the best talent-wise companies build everything from simple mobile apps to enterprise-grade platforms and AI-powered solutions.
Here’s a breakdown of the key areas of Technology California Software Developer Specializing:
Mobile App Development
California companies are experts at developing high-performance mobile apps for iOS, Android, and cross-platform use, using Swift, Kotlin, Flutter, or React Native to create seamless user experiences.
Artificial Intelligence
Leading companies in California are developing intelligent systems for analytics, automation, and personalized digital solutions, from generative AI and natural language processing to machine learning.
Cloud Computing
Software Developers from California who have experience in AWS, Google Cloud, and Azure create scalable, cloud-native applications and manage complex cloud infrastructures.
DevOps
California's tech teams use CI/CD pipelines, infrastructure as code, and automation tools to ensure reliable, timely software delivery and accelerate development.
CyberSecurity
California developers incorporate threat detection, encryption, and advanced security protocols into software systems as threats increase, particularly in the defense, healthcare, and financial sectors.
Custom Software Development
Californian businesses develop custom software to satisfy the particular requirements of every company, whether it's a small MVP or a large enterprise system.
They work in a number of industries, such as finance, real estate, and healthcare.
Which Top Industries Do Software Development Companies In California Serve?
With California being deemed the global capital of technology and innovation, it is clear that its software companies thrust the realms of research across every major industry.
The top industries include Healthcare, Finance, Retail & E-commerce, Artificial Intelligence, Gaming, Manufacturing, and blockchain.
The state is home to over 57,000 tech companies and about 1.5 million tech workers who strategize on tech services for companies all over, fueling adaptation, automation, and innovation.
When it comes to enterprise platforms, AI-driven tools, IoT frameworks, or real-time analytics, California-based software developers serve industries that demand new-age technologies while also setting market trends.
The Top Five Industries Most Served By Software Development Companies In California are:
Technology & Software Publishing
As the backbone of California’s digital economy, this sector spans consumer apps, enterprise software, cloud platforms, and cybersecurity.
With 35 of the world’s top 50 AI companies based in the state, software developers are at the forefront of building advanced tech solutions.
Finance & FinTech
California’s booming fintech development sector thrives on innovations like mobile banking, blockchain, and fraud detection.
Software firms drive this growth by building secure, compliant, and user-friendly solutions with real-time analytics and seamless payment integration.
Healthcare & Healthtech
The healthcare industry is rapidly digitizing, with software driving EHR systems, telemedicine, and AI diagnostics.
Developers create tools that improve patient care, streamline operations, and support remote health monitoring.
Retail & E-commerce
With online shopping booming, California developers build scalable e-commerce platforms, smart inventory tools, and personalized shopping experiences.
A strong focus on UX/UI and mobile-first design keeps the retail sector ahead.
Manufacturing & Industrial Automation
Manufacturing companies use software for robotics, supply chain management, predictive maintenance, and IoT.
Developers help streamline operations, reduce costs, and meet Industry 4.0 demands.
List of Top 10 Software Companies in California.
- SF AppWorks (San Francisco) - a progressive digital agency focusing on web & mobile development and rapid prototyping.
- Magneto IT Solutions (California) - custom software development & digital commerce transformation since 2010.
- Bytes Technolab Inc (California) - software development firm specializing in AI/ML, web and mobile apps for enterprises and SMEs.
- SDLC Corp (California) - global technology partner delivering scalable digital solutions since 2015.
- Credencys (California) - product information management (PIM/MDM) and custom software development provider.
- Admios (California) - nearshore agile software development firm offering experienced engineers, integration and support.
- Ksolves (California) - emerging custom software development company globally operating, covering Big Data, AI/ML, DevOps.
- QBurst (California) - software development agency delivering web and mobile solutions for startups and global brands.
- QA Genesis (California) - software development agency with strong focus on quality assurance, custom software and digital solutions.
- Kingsmen Digital Ventures (California) - custom software development agency specialising in product engineering, cloud-based solutions and data analytics.
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Software Development Companies FAQs
Software development companies' costs are typically based on several factors such as expertise, experience, location, & project complexity.
Although the charges range between $50 and $250/hr, the cost can vary depending on the expertise of the team.
Small-class firms cost around $90-$ 160 per hour, whereas mid-market firms typically demand $120-$ 250 per hour.
Indeed, Software development companies in California offer post-launch support & Maintenance as a part of their services.
Herein, they offer bug fixing, Security updates, adaptation to change as per the business needs, performance improvements & optimization, and many more.
For hiring California-based Software Developers, you should make a data-driven decision by considering suitable factors.
Factors such as local market knowledge, communication & collaboration skills, portfolio, past client reviews, cost & pricing, legal & IP considerations, California tech laws, project management approach & many more.
The Best Software Development Company in California can be different for each company, as per their cost alignment, project complexity, and expertise.
If you have a small business, you can opt for Goji Labs, known for budget-friendly clean code, whereas for the mid-cap project, try out Closeloop Technologies.
Choosing between in-house and outsourced California software developers depends on your project needs, complexity, timeline, and collaboration requirements.
In-house teams offer control and cultural alignment but come at a higher cost. Outsourcing saves on hiring efforts and costs but may pose communication and control challenges. Pick what best fits your business goals.
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