Top IT Companies in California & Best IT Service Providers

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4.9 out of 5, based on 421 real reviews.
Rankings updated: Mar 12, 2026

List of Best It Companies & Top It Firms in California

Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.

226 Companies

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18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 40% Web Development

  • 20% Web Design

  • 10% Mobile App Development

  • 10% Digital Marketing

Where Technology Meets the Mind!

A one-stop shop for online services, Brainwork Technologies provides a comprehensive and significant portfolio of web designing, web development, internet marketing, and content writing. Since our humble beginnings in 2000, we have expanded above our expectations thanks to our commitment to quality and continually expanding techniques to keep up with rapidly developing technologies and customer demands.We have been able to provide services to many clients all around the world thanks to our innate ability to overcome linguistic and cultural boundaries to produce excellent web solutions. We are an Indian company that provides high-quality offshore and on-site services to end users and software development organisations on a variety of hardware and software platforms. Linux, Apache, and Windows are a few of them. In addition, we use modern technologies like PHP and HTML.

View Brainwork Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

2 - 9

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 30% AI Development

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Web Design

Web app development, AI and Product Design experts

Mobile app development, web development, IoT development, AI chatbot development, AI software development, machine learning, game development, and professional services with highly skilled technical professionals are all offered by Uniwebb Software, a USA-based company that specializes in bespoke software development services. We collaborate with tech companies throughout the world to develop cutting-edge solutions and support businesses in undergoing digital transformations.

View Uniwebb Software Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Software Development

  • 10% Digital Transformation

  • 10% AI Development

  • 10% Cloud Computing Services

Enterprise Growth Consultants

Technossus is a tech development and consulting company that helps businesses expand by maximizing their operational technologies, boosting sales, and enhancing customer satisfaction. We have been offering top-notch business consulting and enterprise software development services for more than 16 years. We assist global innovators get real-world returns on their technology investments by using data and analytics.

View Technossus Profile
Inside Service Listing

$150-$199/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

250 - 999

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 50% Blockchain Development

  • 20% Software Development

  • 10% Mobile App Development

All-in-one Web3 advisory and development

We began as a cutting-edge blockchain strategic advising business in 2012. With an emphasis on Insurtech, FinTech, and DeFi, we have since established exchanges across four continents and collaborated with more than 50 blockchain projects, including as EOS, Bancor, and the HDAC. Through the Blockchain Investors Consortium (BIC), we have expanded a global network of cryptocurrency funds and investors and achieved recognition and success throughout the globe thanks to our dedication to game-changing initiatives. We are now able to go beyond strategic advisory and become a full-service, 360º partner for strategy, software development, and the execution of successful products and services because the projects we have partnered on have a combined market cap of more than $4 billion (as of August 2022).

View Beyond Enterprizes Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Software Development

  • 20% Web Development

  • 20% Digital Marketing

  • 20% Cloud Computing Services

Powering smarter eCommerce through innovation and expertise.

Founded in 2001, Smith Consulting is a trusted leader in DNN, Orchard, and WordPress eCommerce development and ERP integration solutions. With over 25 years of combined experience in software engineering and payment processing, we deliver secure, scalable, and customized platforms that optimize online sales, streamline transactions, and drive business growth worldwide.

View Smith Consulting Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Software Development

  • 20% AI Development

  • 10% Mobile App Development

  • 10% Internet of Things

  • 10% Product Engineering services

  • 10% Cloud Computing Services

A pioneer in delivering Business Innovation

ACL Digital is a market leader in design-driven offers for digital experiences, product innovation, solutions, and consulting. We assist in accelerating innovation and transforming businesses at every stage, from strategy to design, execution, and management. Global innovation and a cutting-edge engineering strategy set us apart as collaborators on challenging development projects. Our clients are well-known manufacturers and system providers from the IT and telecommunication, automotive, energy, rail and naval, life sciences, and aerospace, automotive, and energy sectors.We are committed to assisting major Enterprises, SMBs, and start-ups in transforming while keeping user journeys and design at the forefront. ACL Digital, a pioneer in delivering Business Creativity, Integration, and Transformation using Disruptive Technologies, gives business difficulties a competitive advantage, innovation, and new viewpoints.

View ACL Digital Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% AI Development

  • 20% Product Engineering services

  • 10% Software Development

  • 10% Web Development

Full-Stack Software Development with Global Expertise

Softbinator is a full-stack software development company with headquarters in Silicon Valley and Bucharest, delivering world-class digital products to clients across the US and Europe. With 80% of our clients based in the United States, we build dedicated, product-focused development teams that combine technical expertise with a results-driven mindset to turn ideas into scalable, high-value software solutions. We offer end-to-end product development services, including design, coding, deployment, and marketing. Our core services include team augmentation for flexible, skilled support, custom software development tailored to business needs, AI/ML integration for automation and predictive solutions, UI/UX product design for user-centered experiences, and product marketing to maximize go-to-market success. Softbinator stands out for its agile culture, client-centric approach, and English-proficient teams that work seamlessly across multiple time zones. We deliver Silicon Valley-quality engineering at 50% lower cost, offering flexibility, proactive communication, and dedicated support to ensure your project meets its goals. Whether you’re a startup or an enterprise, Softbinator empowers businesses to scale faster, innovate confidently, and bring digital products to life with efficiency, reliability, and measurable impact.

View Softbinator Technologies Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$100,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 20% Digital Marketing

Innovative Digital Solutions for Global Business Growth

DS Technologies is a full-service web development and digital marketing agency with over a decade of experience delivering results-driven solutions worldwide. We specialize in custom website development, responsive web design, SEO optimization, and digital marketing strategies tailored to your business goals. With a proven track record of over 990 successful projects across multiple industries, our expert team focuses on creating high-performing, scalable, and visually compelling digital experiences. By combining technical expertise with innovative design, we help businesses enhance their online visibility, generate qualified leads, and drive measurable growth. Our end-to-end solutions, including domain and hosting services, ensure a secure and seamless digital presence.

View DS Technologies (Pvt.) Limited Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

18

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Web Development

  • 20% Digital Marketing

  • 10% Mobile App Development

  • 10% Web Design

  • 10% AI Development

  • 10% CMS

Boosting Enterprises With AI-Powered Digital Transformation

Brightter is a global AI-powered digital transformation agency dedicated to helping businesses evolve into bold, future-ready brands. We combine artificial intelligence, innovation, and strategic digital solutions to drive growth and efficiency in a fast-changing world. Our expert team delivers customized branding, automation, and technology-driven marketing services that empower organizations to scale and stay competitive. With a focus on collaboration, creativity, and measurable results, Brightter partners with enterprises to overcome challenges and unlock their full potential. Transform your business with AI-driven strategy and digital innovation—choose Brightter to accelerate success and shape a smarter, more connected future.

View Brightter Inc. Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% AI Development

  • 10% Business Services

  • 10% CMS

Let our Smart People do something Powerful for You

We offer consultation and services for web and mobile. We collaborate with our clients to deliver captivating and dramatic outcomes by drawing on our 20+ years of experience in the digital realm, strategies, and best practises. Our areas of expertise include: Small Business Solutions; Mobile App Development; Salesforce.com Implementation and Customization; Web Consulting and Production Services.

View Jway Group Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 10% Ecommerce Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Blockchain Development

  • 10% Internet of Things

  • 10% Digital Transformation

  • 10% AI Development

  • 10% CMS

Elevating Technology with Excellence

Enhancing Technology through Superiority For the past ten years, NanoByte Technologies, a US-based IT firm, has been offering cutting-edge software design and development services, worldwide IT solutions, and outstanding websites, mobile apps, and web applications. Prioritizing time, quality, and money, we strive for 100% client satisfaction with a perfect success rate. For unrivaled service that constantly goes above and above, choose us.

View NanoByte Technologies Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% AI Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Cloud Computing Services

One Digital Stop

Imaga is an award-winning custom software development company helping small and mid-sized businesses accelerate digital transformation. With over $300 million in delivered value and a global client base spanning 12 countries, Imaga empowers companies to focus on core business initiatives while we handle complex technology solutions. Our team includes 350+ in-house engineers, designers, and consultants, supported by a network of 1,500+ partner professionals, with offices in California, Valencia, Dubai, Moscow, and Istanbul. We specialize in full-cycle IT services, including: User research, market analysis, and competitive benchmarking UI/UX, visual design, wireframing, and interaction design Web and mobile application development E-commerce, IoT, and banking software solutions Chatbots, middleware, and cloud infrastructure (AWS, Google Cloud, Azure) CI/CD server management, proactive monitoring, and security solutions AI solutions, including GPT, BioBERT, SciBERT, RAG optimization, and OCR automation Imaga combines cutting-edge technology with deep industry expertise to deliver scalable, high-performance solutions tailored to your business. From digital strategy and go-to-market planning to ongoing cloud management and AI integration, we turn ambitious ideas into measurable results.

View imaga Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Blockchain Development

  • 10% Cloud Computing Services

  • 10% CMS

Reforming Tomorrows Tech

Greetings from Tech Reforms, your go-to source for complete mobile app development and web design. Change your online presence and establish a stronger connection with your audience. Don't allow your company suffer from a lack of tech skills. To find out how we can assist you in reaching your objectives, get in touch with us right now.

View Tech Reforms Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 90% Cloud Computing Services

IT Solutions That FIT

We at Forum Info-Tech are proud to be one of the leading Managed IT Services Providers based in Corona, Los Angeles, and Orange County. Our skillful team of experienced engineers keeps your systems running smoothly while you focus on driving your business. While there are many Managed IT service provider options, we stand above all when it comes to service. We customize your solution only after understanding your goals and vision. Our reliability and responsiveness make us the IT support services provider of choice. We provide a wide range of IT services nationwide from application hosting to onsite management. From handling cyber security issues to providing IT or Cloud consulting, we deliver a variety of exceptional solutions to our clients. If you are looking for a firm that provides quality IT support in Orange County, look no more. Contact us immediately.

View Forum Info-Tech IT Solutions Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Business Services

  • 10% Cloud Computing Services

  • 10% CMS

Top-Rated Mobile Application Dev Firm

One of the leading software development and BPO organizations in the globe, Sataware provides worldwide clients with dependable and effective BPO outsourcing solutions. We actually offer 24X7 services because we have offices in the USA & India. Finding the ideal technical partner for Web, mobile, desktop application development, and BPO services can be tough, but Sataware stands out for having a solid set of competencies that can help you accomplish your vision. Basically, the safe, scalable, upward-facing, and trustworthy business systems are the focus of our services. Our most creative information technology and software outsourcing services are built with a focus on addressing the particular needs and objectives of our clients. We publicize our high standards through our inexpensive, trustworthy, and high-quality software services.

View Sataware Technologies Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% AI Development

  • 10% Cloud Computing Services

  • 10% CMS

Design. Build. Grow.

EvolveDash is a global innovation partner delivering AI solutions, mobile app development, and custom web applications. With teams across Canada, the US, Dubai, and Pakistan, we provide scalable, high-performance digital products powered by expert engineering and modern technologies.

View EvolveDash Inc Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Software Development

  • 10% Web Design

  • 10% Digital Transformation

  • 10% AI Development

  • 10% Product Engineering services

High-Fidelity Software & Design

Vynyl is a full-service software and design agency, bringing together expert technologists, developers, designers, and product and marketing specialists—all in-house in the United States. We specialize in building custom web and mobile applications that are both visually striking and technically robust, perfectly aligned with our clients’ business goals. Our portfolio spans high-profile corporations, leading universities, government agencies, top digital marketing firms, and venture-backed startups. By combining innovation, technical expertise, and user-focused design, Vynyl empowers businesses to transform ideas into impactful digital solutions. What could your business create with a team like Vynyl?

View VYNYL Profile
Inside Service Listing

N/A

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 50% AI Development

  • 10% Mobile App Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

Innovative UI/UX and Webflow Development for Business Growth

Advetfly Solutions LLP is a leading design and development company specializing in UI/UX design, Webflow development, and custom digital solutions. We craft user-centric websites and mobile applications that empower businesses across industries, including healthcare, logistics, education, eCommerce, fitness, retail, pharmaceuticals, and marketing. Our expert team blends creativity with technology to deliver intuitive interfaces, seamless functionality, and scalable solutions tailored to business goals. Beyond design and development, we help brands enhance their digital presence, engagement, and conversion rates through impactful strategies. At Advetfly, we transform ideas into powerful digital experiences that drive measurable results and long-term growth.

View Advetfly Solutions Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 10% Web Design

  • 10% AI Development

  • 10% Cloud Computing Services

IT consulting done correctly!

Diatom Enterprises is a leading custom software development company based in Latvia, originally founded in Canada. With over 18 years of experience, we specialize in delivering high-quality, scalable software solutions for businesses across industries worldwide. Our expertise spans .NET, Blazor, JavaScript, React, Angular, Node.js, and Ruby on Rails, empowering us to build dynamic web, mobile, and desktop applications tailored to client needs. At Diatom Enterprises, we blend innovation, technical excellence, and affordability to help businesses accelerate digital transformation. Trusted globally, we believe in long-term partnerships—many of our clients have grown into friends through years of successful collaboration and shared success.

View Diatom Enterprises Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Internet of Things

  • 10% Digital Transformation

  • 10% AI Development

  • 10% Cloud Computing Services

Tech with Heart

Svitla: Your Premier Digital Transformation Partner With more than two decades of expertise, Svitla is a leading global digital solutions provider dedicated to helping businesses thrive in the digital age. Since 2003, we have delivered over 5,000 innovative, tailor-made solutions across diverse sectors, empowering our clients to gain a competitive advantage and accelerate growth. At Svitla, our mission is to leverage cutting-edge digital technologies—such as cloud computing, data analytics, and artificial intelligence—to develop sustainable solutions that set the stage for a prosperous future. Our elite team of over 1,000 skilled technology experts, including strategists and delivery specialists, are committed to driving impactful business transformations through comprehensive advisory, development, and support services. We proudly partner with organizations ranging from dynamic startups to Fortune 500 giants, including esteemed brands like Logitech and Global Citizen. Our extensive know-how spans more than 20 industries, including E-commerce, Healthcare, Financial Services, and Logistics, with operations supported by 10 delivery centers worldwide across the US, LATAM, Europe, and Asia. As a WBENC-certified business, Svitla stands out as one of the fastest-growing women-owned IT companies in the United States. Our commitment to excellence is validated through prestigious awards and certifications like ISO 9001:2015 and AWS Advanced Partner status. Partner with Svitla and secure your digital future today!

View Svitla Systems Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

17

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 20% Software Development

  • 20% Web Development

  • 10% Web Design

  • 10% Internet of Things

  • 10% AI Development

Software Engineering that Creates Value

Since 2007, we have been building high-performance R&D and software development teams that solve complex technical challenges and deliver scalable digital products. With 600+ successfully launched solutions, we support businesses in accelerating innovation through secure, responsive, and future-ready greenfield and brownfield development. Our core services include web, mobile, and desktop application development, UI/UX design, quality assurance, IT consulting, and product modernization. We help organizations optimize existing systems, enhance performance, and bring new digital products to market efficiently. We serve diverse industries, including Industry 4.0 and IoT, logistics and transportation, media and entertainment, social platforms, healthcare and wellness, FinTech, Game Development, and AR/VR solutions. What differentiates us is our partnership-driven approach. We combine senior-level technical expertise with clear communication, agile processes, and direct collaboration—without unnecessary bureaucracy. Whether you need a dedicated R&D team, product enhancement, or full-cycle software development, we deliver tailored technology solutions designed to exceed expectations and create long-term business value.

View IT-Dimension Inc. Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

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Services Provided
info
Expertise Distribution (%)
  • 5% IT Services

  • 20% Software Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Web Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Cloud Computing Services

  • 10% CMS

  • 5% Blockchain Development

Hire the top 3% of freelance talent

Toptal is a premier global talent network connecting businesses with the top 3% of freelance professionals worldwide. Founded in 2010, Toptal helps companies accelerate innovation, scale efficiently, and execute critical projects with speed and confidence. Enterprises and fast-growing startups trust Toptal for elite developers, designers, finance experts, product managers, and project leaders. As the world’s largest fully remote company, Toptal has supported more than 10,000 clients across diverse industries by delivering on-demand access to highly vetted talent in over 100 countries. Integrity, excellence, and agility define every engagement, enabling organizations to stay competitive in rapidly evolving markets.

View Toptal Profile
Inside Service Listing

$100-$149/hr

Hourly Rate
Inside Service Listing

$50,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 5% IT Services

  • 20% AI Development

  • 15% Software Development

  • 10% Internet of Things

  • 10% Digital Transformation

  • 10% Cloud Computing Services

  • 8% CMS

  • 7% Mobile App Development

  • 6% Product Engineering services

  • 5% Web Development

  • 4% Ecommerce Development

Make the right Choice

AlphaBOLD is a global leader in next-generation business transformation and consulting. We enable clients all over the US to navigate their digital transformation. With collectively three decades of experience managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do this by enabling the enterprise with Dynamics 365 or Oracle NetSuite core, which helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovative ecosystem. AlphaBOLD implements Dynamics 365, SharePoint, Power BI, Oracle NetSuite, and many other custom solutions for its customers. From end-to-end digital implementations to planning, design, development, and roll-out of various business applications, BOLDEnthusiasts can deliver it all. AlphaBOLD has developed vertical-specific solutions for Construction, Manufacturing, and Retail companies to help them reach their true potential. AlphaBOLD also offers add-ons that can be installed easily on existing systems and help boost the productivity of an organization significantly. Our add-ons include BOLD-HI, BOLDSync etc.

View AlphaBOLD Profile
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

16

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 5% IT Services

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% Internet of Things

  • 10% AI Development

  • 5% Digital Marketing

  • 5% Digital Transformation

  • 5% Product Engineering services

  • 5% Cloud Computing Services

  • 5% CMS

Setting the Standard for Staff Augmentation and IT Solutions

Cyber InfraStructure INC. (CIS), founded in 2003, is a global IT consulting and staff augmentation leader with offices in Central India, the USA, and the UK. We specialize in delivering top-tier technology solutions, helping businesses scale their teams and optimize operations efficiently. With experience serving over 2,100 clients across 100+ countries, we support industries including education, finance, travel, retail, manufacturing, gaming, and healthcare. CIS is recognized for excellence, holding CMMI Level 3, ISO 9001:2018 certifications, and partnerships such as Microsoft Gold Partner, Magento Silver Solution Partner, and memberships with Drupal and Joomla. Our focus is delivering innovative, reliable IT solutions that drive measurable business results.

View CIS Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

250 - 999

Team size
Inside Service Listing

California, USA

Location

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

2

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% IT Services

  • 20% Mobile App Development

  • 20% Software Development

  • 20% Business Services

  • 10% Web Development

  • 10% Cloud Computing Services

Access Elite Talents in Hour

Scalable Remote Workforce & Managed Support Solutions Our fully managed outsourcing services help growing businesses build a scalable, high-performing remote workforce without the complexity of in-house hiring. We handle the entire talent lifecycle—from recruitment and screening to onboarding, training, and day-to-day management—so your team can focus on driving results and business growth. We maintain a strong global network of experienced professionals, giving companies quick access to qualified sales representatives and customer support specialists. Our structured training programs and performance management systems ensure consistent productivity and service quality. Our core services include lead generation, appointment setting, cold calling, email prospecting, client retention, and live sales chat handled by skilled representatives. On the support side, we deliver inbound customer service, virtual receptionist services, technical support, and live chat assistance across phone, email, and messaging channels. By providing cost-effective, flexible staffing solutions for U.S.-based brands and global businesses, we help organizations reduce operational costs, improve customer experience, and scale operations faster with reliable remote teams.

View RemoteReps Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

California, USA

Location

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

1

SF Score

SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 10% IT Services

  • 20% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Blockchain Development

  • 10% Internet of Things

  • 10% AI Development

  • 10% Business Services

  • 10% Cloud Computing Services

We are changing the world with technologies

MedRec Technologies is a London-based software development company delivering advanced digital solutions to businesses worldwide. With a global team of 60+ software engineers, consultants, designers, and technology specialists across the UK, USA, Europe, the Middle East, and Asia, we provide scalable and high-performance software tailored to modern business needs. Our expertise includes AI and Machine Learning, Big Data Analytics, IoT, Cloud Computing, Blockchain, RPA, Cybersecurity, and SDN-NFV, enabling organizations to accelerate digital transformation. We serve diverse industries such as healthcare, fintech, retail, manufacturing, education, robotics, e-commerce, and transportation. Our core services include custom software development, mobile and web application development, enterprise solutions, automation systems, chatbot development, real-time applications, QA testing, and IT consulting. With a strong focus on innovation, quality, and collaboration, MedRec Technologies helps businesses build reliable, secure, and future-ready technology solutions.

View MedRec Technologies Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

California, USA

Location
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Buyer's Guide

Find the Best IT Companies in California

Finding the best IT companies in California is simple if you know where to look. California has many IT firms offering services like software development and cybersecurity. Use a platform to filter by location, reviews, or expertise to match your needs.

  • Check reviews: Look at what other clients say about the company’s work.
  • Compare services: Make sure the company offers what your business needs.
  • Look at location: Choose a firm near you for easier communication.
  • Review expertise: Pick a company with skills in your industry.

A trusted platform helps you find expert IT companies in california quickly and easily, so you can start your project without delay.

Why Choose IT Services in California

California is a top spot for IT services because of its innovation and talent. Top IT firms here use the latest technology to help businesses grow. With access to a robust tech ecosystem and a diverse talent pool, California companies are well-equipped to drive cutting-edge solutions that meet various business needs. Here are some reasons why you should choose California for IT services in the United States.

  • Innovative solutions: California firms use cutting-edge tools and ideas.
  • Skilled teams: Experts in California know the latest tech trends.
  • Fast support: Local firms respond quickly to your needs.
  • Trusted results: Many businesses rely on California’s IT expertise.

Choosing IT services in California means working with leaders in technology who can boost your business. Explore your ideal business partner with our expert tips and business listings made to ease your way in finding one. 

Benefits of Hiring Top IT Companies in California

Hiring top IT companies in California can make your business better. These firms not only save time by handling complex technological tasks, but they also enhance your security measures to protect sensitive data. Furthermore, with their team of seasoned professionals, you gain access to expert help and innovative solutions tailored to your specific business needs, ultimately driving growth and efficiency. Most common benefits of hiring top IT service companies in California include:

  • Save time: IT experts handle tech tasks so you focus on your work.
  • Better security: Protect your data with professional cybersecurity services.
  • Expert advice: Get help from people who know technology well.
  • Grow faster: IT solutions help your business run smoothly and grow.

With the right IT partner, your business can thrive and stay ahead of competitors.

What to Expect from IT Support Services in California

IT support services in California keep your business running smoothly. Expect help with computers, networks, and security, along with access to specialized IT consulting services that can transform your business operations. 

  • Quick help: Get fast solutions for tech problems anytime.
  • Secure systems: Experts protect your data from threats.
  • Regular checks: IT teams monitor your systems to prevent issues.
  • Friendly support: Get help from teams who explain things clearly.

Reliable IT support ensures your business stays safe and efficient every day.

Tips for Working with California IT Companies

Working with California IT companies is easy with the right approach. Set clear goals and communicate often. Use a platform to find a reliable list of IT companies in California and pick an IT firm that suits your needs. Here are a few tips to consider.

  • Be clear: Tell the company exactly what you need.
  • Stay in touch: Regular updates keep projects on track.
  • Set a budget: Agree on costs before starting work.
  • Check progress: Ask for updates to ensure quality work.

Good communication and a trusted platform make working with IT firms smooth and successful.

Types of IT Services in California

California offers many types of IT services to help businesses succeed. From cloud computing to app development, IT services in California cover all your needs..

  • Cloud computing: Store and access data online safely.
  • Cybersecurity: Keep your business safe from hackers.
  • Software development: Build custom apps for your business.
  • IT consulting: Get advice to improve your tech setup.

Explore different IT services to find the perfect solution for your business goals.

Cost of Hiring IT Companies in California

Finding the best IT service providers in California doesn’t have to be hard. The average hourly rate typically ranges from $100 to $250, with some companies charging as much as $850 for enterprise-level services, influenced by factors like company size and scope. A curated list of IT companies is available to match your budget. 

Company Name

Location

Hourly Rate

Key Services

Magneto IT Solutions

California

$25-$49

eCommerce, Web Development

Satva Solutions

California

$25-$49

Accounting Integration, FinTech

11:59

California

Not Listed

Digital Transformation, IT Strategy

KOKONUT Group

California

$25-$49

SEO, Digital Marketing

GenCare

California

$150-$199

Managed Services, IT Consulting

Turner Techtronics, Inc.

California

$25-$49

IT Support, Networking

Skyriver IT

California

$100-$149

IT Consulting, Cybersecurity

iStreet Solutions, LLC

California

$100-$149

Application Hosting, Managed Services

Allsafe IT

California

$150-$199

Managed IT, Cloud Solutions

InSync Computer Solutions

California

$25-$49

IT Support, Cybersecurity

Explore SelectedFirms to compare costs and find the perfect IT partner for your business needs.

How We Rank IT Companies in California

Ranking the best IT companies in California requires examining reviews, expertise, and client success. Collaborations with top cybersecurity firms are assessed to ensure comprehensive protection.

  • Client reviews: Feedback from other businesses shows reliability.
  • Expert skills: Firms with strong tech knowledge rank higher.
  • Successful projects: Look at past work to judge quality.
  • Clear pricing: Top firms offer fair and transparent costs.

What Are the Different Types of IT Companies?

California has many types of IT companies to help businesses. Some focus on software, others on IT support or cybersecurity..

  • Managed IT providers: Handle all your tech needs daily.
  • Software developers: Build custom apps for your business.
  • Cybersecurity firms: Protect your data from online threats.
  • Cloud experts: Offer online storage and computing solutions.

Choose the right type of IT company to match your business needs perfectly.

10 Questions to Ask When Hiring IT Service Providers

Choosing top IT service providers in California means asking smart questions about their  comprehensive managed IT services and support capabilities. As a business owner, you need a reliable partner...

  • What services do you offer?
  • How do you protect my data?
  • What are your hourly rates?
  • Can you share client reviews?
  • How fast do you respond to issues?
  • Do you have experience in my industry?
  • Can you customize solutions for me?
  • How do you handle project delays?
  • Do you offer ongoing support?
  • What makes your team stand out?

Use a platform to find answers and choose the right IT provider.

Takeaways on IT Services in California

IT services in California help businesses grow and stay secure. From IT support services in California to custom software, the right provider makes a big difference. 

  • Stay secure: IT services protect your business from threats.
  • Save money: Good IT solutions reduce long-term costs.
  • Grow easily: Tech support helps your business expand.
  • Work smarter: IT tools make daily tasks faster and easier.

California’s IT services are key to building a successful, modern business.

Why Choose SelectedFirms for IT Services in California

Finding top IT service providers is easy with the right tools. A reliable platform like SelectedFirms offers customized lists of the best IT service providers, including partnerships with top analytics companies, to match your budget and goals. Explore now to find your perfect IT partner!

  • Customized lists: Find companies tailored to your industry needs.
  • Trusted reviews: Client feedback ensures you pick reliable firms.
  • Easy filtering: Sort by cost, location, or services quickly.
  • Fast results: Connect with top providers in just a few clicks.
  • Proven expertise: Work with firms known for great results.

SelectedFirms simplifies your search and builds trust in finding the best IT solutions. Trust SelectedFirms to guide you to the perfect IT partner for your business.

IT Services Companies FAQs

Top IT companies in California provide many helpful services like cloud solutions, cybersecurity, software development, managed IT services, and data analysis. They also offer special services for healthcare, finance, and education sectors, build websites and mobile apps, and provide IT training.

IT Services in California cost different amounts depending on what you need. With the help of computers and IT devices, keeping your network safe, some IT services providers demand $75-$150 per month.Bigger services with better security cost $200+ per person monthly. Some places charge $35-$250 for each computer instead.

To pick the best IT service provider, first, know what you need. Then look for companies that can offer those services & fulfil your requirements. Evaluate if they're good at their job and won't let you down. Think about price and what's in the contract. Don't just pick the cheapest one – find people who really know computers well.

Yes, many California IT companies are trustworthy. California has lots of technology companies, from new startups to experienced ones. The state is known as a place where new tech innovations happen, so many good IT professionals work there and establish a great place in the IT industry.

In California, IT support can fix any technical hurdle, ranging from simple technical errors to taking care of complicated systems. Either you want to come to your workplace or you can assist you remotely. They fix machines, programs, and internet connections. These IT support experts also teach people how to use new technology and keep records of everything.

Good IT companies keep information safe in many different ways. They use secret codes, access control, keep backup code, and train candidates about safety. They also purchase advanced safety tools like Zero Trust systems and computer protection.

Yes, you can easily find IT support services providers for small businesses in California. These IT services are experts in providing many services such as Managed IT support, help desk support, network management, and data rectification & encryption & backup solutions.

Hiring an IT company in California, either through a recruitment agency or on your own, would at least take around 1-4 weeks. The process of hiring includes posting the agency requirements, shortlisting the best portfolios, and hiring the one that aligns with the overall business requirements, which can take up to 3 to 6 months. If you're working with the California state government, it might take 2-4 months.

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