Top .NET Development Companies in California

Discover top .net development companies in California. Compare reviewed agencies, portfolios, pricing, and services to hire the best .NET Developers for your project.
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4.9 out of 5, based on 249 real reviews.
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Explore Reviewed .NET Development Companies in California — Find Skilled .NET Developers for Your Project

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

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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
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Expertise Distribution (%)
  • 20% Software Development

  • 20% Mobile App Development

  • 20% IT Services

  • 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

Encinitas, 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
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Expertise Distribution (%)
  • 20% Software Development

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Ecommerce Development

  • 10% Web Design

  • 10% Digital Marketing

  • 10% Artificial Intelligence

Form Follows Function

IMRepublic, founded in 2005 with offices in San Francisco, CA, and Belgrade, Serbia, is a full-stack software development and design agency delivering tailored digital solutions for businesses of all sizes. We specialize in custom software development, enterprise systems, and process optimization to help clients achieve measurable growth. Our client-focused approach combines assessment, design, development, and optimization. We collaborate closely with your team to align technology solutions with business goals, leveraging the latest globally-adopted frameworks and languages while respecting your existing infrastructure. From backend, frontend, and middleware development to complex enterprise integrations, our experienced team advises on the most efficient technology stack to maximize ROI. Whether you need custom software to solve unique business challenges or enhancements to existing systems, IMRepublic provides agile, reliable, and scalable solutions that drive results and streamline operations. We are committed to client success, delivering innovative, high-quality software that boosts performance and revenue.

View IM Republic, Inc Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

San Francisco, 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% Software Development

  • 20% Ecommerce Development

  • 20% Mobile App Development

  • 10% Web Development

  • 10% Web Design

  • 10% Artificial Intelligence

  • 10% CMS

Unleash Agility: Your Trusted Partner for Outsourcing

Native DevOps is a global digital transformation partner delivering advanced software development, mobile applications, and scalable web solutions. With 7+ years of experience and over 250 successful projects, we help startups, SMEs, and enterprises modernize operations and accelerate digital growth. Our expertise spans UI/UX design, custom software development, and full-stack engineering using modern technologies like React, Angular, Vue.js, Node.js, and Golang. We build high-performance mobile apps for iOS and Android using Swift, Kotlin, and cross-platform frameworks such as Flutter and React Native. We also specialize in web and CMS development (PHP, Laravel), Progressive Web Apps (PWA), and next-gen solutions including Web3, blockchain, and NFT platforms. Our eCommerce capabilities cover Shopify, WooCommerce, and Shopware, delivering conversion-focused online stores. In addition, we offer flexible staff augmentation models to scale your development team efficiently. Partner with Native DevOps to leverage innovative, secure, and future-ready digital solutions that drive efficiency, enhance user experience, and deliver measurable business results.

View Native DevOps 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

Los Angeles, 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% Software Development

  • 20% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 10% Cloud Computing Services

  • 10% CMS

Custom Software and Product Development Company

4 Way Technologies is a premium IT services company specializing in business-critical web, mobile, and Smart TV application development, with offices in the USA, Australia, and India and a team of 100+ developers. Born cloud-native and operating in a fully Agile delivery model, 4 Way Technologies is an early adopter of OTT and live streaming platforms—making them a trusted development partner for major media companies. Their open-source technology stack (Java, JavaScript, Node.js, Angular, AWS) combined with OWASP-certified security practices ensures every application is built for performance, scalability, and enterprise-grade security. With transparent project management via JIRA and Trello, 4 Way Technologies delivers offshore software development with full visibility and zero compromise on quality.

View 4 Way Technologies Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Fremont, 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% Software Development

  • 20% Mobile App Development

  • 20% Web Development

  • 20% Web Design

  • 10% Artificial Intelligence

  • 10% Cloud Computing Services

Business solutions, tailor-made.

LANEX Corporation is a full-cycle software development company delivering custom digital products for startups and global enterprises. With deep expertise across Node.js, React, Angular, Laravel, .NET, Java, Flutter, Kotlin, and cloud platforms including AWS and Kubernetes, LANEX builds scalable, secure solutions tailored to each client's technology requirements and business objectives. Serving industries from banking and healthcare to retail, logistics, and energy, their agile teams bring domain-specific knowledge that accelerates delivery and reduces risk. LANEX's end-to-end offering—from UI/UX design through to post-launch support—ensures digital products are not only technically sound but built to elevate brand credibility and deliver exceptional user experiences at scale.

View LANEX Corporation 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

San Francisco, 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% Software Development

  • 20% Mobile App Development

  • 20% IT Services

  • 20% Internet of Things

  • 10% Web Development

  • 10% Web Design

Etymology: Latin, literally, from the egg: from the beginning

Ab Ovo, Inc. is a Santa Clara, California-based IT consulting and staff augmentation firm founded in 2006, providing technology and operations solutions to Global 1000 companies. As a woman- and minority-owned business, Ab Ovo specializes in e-commerce platforms, cloud enablement, IoT, big data, business intelligence, automation testing, and enterprise application development and integration. The firm combines deep technical expertise with an understanding of client industries to solve complex business challenges with speed and agility. Ab Ovo's staff augmentation and software engineering services help organizations quickly scale technical teams while maintaining quality and adaptability to evolving business needs. With operations extending to the UK and India, the company supports clients across automotive, energy, eCommerce, financial services, manufacturing, medical, and retail sectors. Ab Ovo's productized applications and platforms are designed to accelerate digital transformation initiatives, making the company a reliable technology partner for enterprises seeking flexible, innovation-driven IT services and skilled technical talent.

View Ab Ovo, Inc. 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

Santa Clara, 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% Software Development

  • 20% Ecommerce Development

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Web Design

  • 10% Artificial Intelligence

  • 10% CMS

Amazing design creates incredible experiences

Guided by strong business ethics and customer-focused values, we deliver custom software and digital solutions tailored to each client’s technical and budget requirements. Instead of offering one-size-fits-all services, we focus on creating practical, scalable solutions that improve efficiency, support business goals, and maximize return on investment (ROI) for our clients.

View App Design Company 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

Carlsbad, 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% Software Development

  • 20% Ecommerce Development

  • 20% Mobile App Development

  • 20% Web Development

  • 10% Web Design

  • 10% Artificial Intelligence

  • 10% Product Engineering services

Let's build awesome

SDI is a global software development company delivering innovative digital solutions to businesses for over 20 years. We specialize in custom software development, mobile app development, web design and development, and digital marketing services, helping organizations transform ideas into scalable digital products. Our team of 200+ certified professionals and 30+ UI/UX experts collaborates closely with clients to create tailored solutions that align with their business goals. With offices in California, Melbourne, and multiple locations in India, SDI has served 5,000+ clients worldwide and successfully delivered 2,000+ applications across industries including finance, education, healthcare, enterprise, social networking, and startups. Trusted by brands such as Pepsi, Stanford University, and Marvell, we focus on building high-performance applications, responsive websites, and growth-driven digital strategies that help businesses innovate, scale, and compete in today’s digital landscape.

View SDI - Software Developers Inc Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$1,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Saratoga, 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% Software Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Web Development

  • 10% Blockchain Development

  • 10% Internet of Things

  • 10% Artificial Intelligence

  • 10% Cloud Computing Services

  • 10% CMS

  • 5% Digital Marketing

  • 5% IT Services

Plan Driven. Be ready for tomorrow's business world, today.

Founded in 2014, Ordex Technology Solutions (OTS) is a trusted software development company delivering high-quality, customized IT solutions for businesses worldwide. We specialize in custom software development, eCommerce websites, mobile app development (Android & iOS), and seamless integrations such as QuickBooks and marketplace automation. Our team provides end-to-end services—from requirement analysis and solution design to development, deployment, and ongoing support. We help businesses maximize IT value, streamline operations, and adapt to evolving market demands. With a strong focus on innovation, quality, and client satisfaction, OTS delivers scalable, secure, and performance-driven solutions that empower organizations to achieve sustainable growth and long-term success.

View Ordex Technology Solution Inc Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

Cerritos, 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% Software Development

  • 20% Mobile App Development

  • 10% Ecommerce Development

  • 10% Web Development

  • 10% Web Design

  • 10% IT Services

  • 10% Internet of Things

  • 10% Artificial Intelligence

  • 10% Cloud Computing Services

An AI Agent Engineering Company

Kwanso is a leading design and development consultancy specializing in bringing product visions to life. With over a decade of experience, we have successfully partnered with Fortune 100 companies, startups, digital agencies, and mid-sized enterprises. Acting as a trusted technology partner, we provide agile, high-performing teams to deliver projects on time and within budget. Our expertise spans web and mobile app development, UI/UX design, generative AI solutions for enterprises, Internet of Things (IoT) applications, and comprehensive QA testing. Kwanso empowers businesses to innovate, scale efficiently, and create impactful digital products that drive measurable results.

View Kwanso LLC 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

San Francisco, 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% Software Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Web Development

  • 10% Web Design

  • 10% IT Services

  • 10% Blockchain Development

  • 10% Internet of Things

  • 10% Artificial Intelligence

  • 10% Business Services

Where AI transforms ideas into intelligent, future-ready experiences

Asapp Studio is a digital product development company focused on creating engaging, user-centric applications that turn users into loyal customers. We specialize in building high-performance mobile apps (iOS and Android), web applications, and desktop solutions designed to deliver exceptional user experiences and measurable business results. Our approach combines UX/UI design expertise with strong engineering practices to craft intuitive, visually appealing, and scalable products. We go beyond functionality—focusing on user behavior, seamless interactions, and brand alignment to ensure your product stands out in competitive digital markets. From idea validation and product strategy to design, development, and launch, Asapp Studio provides end-to-end services tailored to your goals. We work closely with clients to understand their vision and translate it into impactful digital solutions that drive engagement and retention. With a commitment to quality, innovation, and collaboration, Asapp Studio acts as a true technology partner—helping businesses build memorable digital experiences that strengthen brand identity and support long-term growth.

View Asapp Studio Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

10 - 49

Team size
Inside Service Listing

Temecula, 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% Software Development

  • 20% Digital Marketing

  • 20% IT Services

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Web Development

  • 10% Cloud Computing Services

  • 10% CMS

Your trusted partner for end-to-end software development solutions

Developers Dev is a large-scale software development and IT services company providing comprehensive digital solutions to businesses worldwide. With a team of thousands of developers, the firm offers services spanning custom software development, mobile app development, web development, UI/UX design, AI and machine learning integration, cloud computing, and IT staff augmentation. Developers Dev caters to startups and enterprises alike, delivering scalable and innovative technology solutions at competitive rates. The company emphasizes quality assurance, agile delivery methodologies, and dedicated project management to ensure on-time, on-budget delivery for clients across North America, Europe, and beyond.

View Developers Dev Profile
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$5,000+

Min. Budget Size
Inside Service Listing

1,000 - 9,999

Team size
Inside Service Listing

San Jose, 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% Software Development

  • 37% Web Development

  • 23% IT Services

  • 10% Ecommerce Development

  • 10% Web Design

  • 10% Artificial Intelligence

Web design and staff augmentation solutions for growing businesses

Cidersoft is a technology services company offering web design, web development, and IT staff augmentation to businesses seeking flexible, cost-effective digital solutions. The agency provides both project-based web design and development work and on-demand staffing to augment client technology teams with skilled developers, designers, and project managers. Cidersoft serves a broad range of industries, helping businesses modernize their digital presence and scale their technical capacity without the overhead of full-time hires. With a blend of creative and technical talent, Cidersoft delivers solutions that are practical, scalable, and aligned with each client's specific operational and growth needs.

View Cidersoft - Web Design & Staff Augmentation Profile
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$10,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

San Ramon, USA

Location
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