Top 100 Software Development Companies in California
The Best of October 2026Looking for a top software developer in California?
As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.
To assist you in your search for a partner, we’ve compiled this list of the top software development companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
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List of the Best California Software Developers
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$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures, a custom software development company, is in Irvine, California. Established in 2017, the small team offers Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a custom software development firm. The Medina, Washington-based company was established in 2001. The small team focuses on Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more.Read More
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991$1,000+50 - 249 employeesCupertino, CASysfort Inc is a midsize Cupertino, California-based AI development company. They specialize in Artificial Intelligence, Custom Software Development, cloud consulting & SI, and BI & big data consulting & SI and were founded in 2014.Read More
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992$5,000+50 - 249 employeesMilpitas, CAOpcito Technologies is a software development company. They offer Custom Software Development, cloud consulting & SI, Enterprise App Modernization, IT staff augmentation, and more and were launched in 2015. The agency is located in Pune, India and Milpitas, California.Read More
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993$1,000+Freelancer employeesSan Clemente, CARithmatics is a software development firm. In San Clemente, California, their small team specializes in Custom Software Development and Web Development. The company was established in 2014.Read More
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994$10,000+2 - 9 employeesLos Angeles, CASandwich Video is a video production company. Their small team is located in Los Angeles, California and offers Video Production and Advertising. The company was launched in 2009.Read More
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995Undisclosed2 - 9 employeesWalnut Creek, CAMiller Media - Walnut Creek is a custom software development firm. Founded in 2012, the firm is in Walnut Creek, California. Their services include Custom Software Development and Web Development.Read More
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996Undisclosed2 - 9 employeesLivermore, CAIn Livermore, California, Empower Minds, LLC is a small Accounting company. Their services include Accounting and Custom Software Development.Read More
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997Undisclosed2 - 9 employeesCupertino, CAAcionyx is a software development company. They are headquartered in Cupertino, California. Their team focuses on Custom Software Development and Application Management & Support.Read More
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998Undisclosed2 - 9 employeesSan Diego, CACutler Engineering & Technology Services LLC is a small Cybersecurity company based in San Diego, California. Their services include Cybersecurity and IT managed services.Read More
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999Undisclosed2 - 9 employeesLong Beach, CANovareSys, LLC is a Penfield, New York-based software development firm. They provide Custom Software Development and Digital Engineering.Read More
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1000Undisclosed2 - 9 employeesLos Angeles, CASystems Programming Consultants, Inc. Is a software development firm. Established in 1982, their team specializes in Custom Software Development and Web Development.Read More
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1001Undisclosed2 - 9 employeesFremont, CACordia Solutions is an Application Testing company. Launched in 2021, the team specializes in Application Testing and BI & big data consulting & SI.Read More
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1002Undisclosed2 - 9 employeesCarlsbad, CAFounded in 1999, Lynch Interactive, Inc. Is a business intelligence company. The agency provides BI & big data consulting & SI and IT managed services.Read More
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1003Undisclosed2 - 9 employeesSan Clemente, CANavfeas, Inc. Is a software development company. Based in San Clemente, California, the agency was founded in 2021. Their team specializes in Custom Software Development and Computer Engineering.Read More
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1004Undisclosed2 - 9 employeesOrange, CACybernova Tech Consulting, an IT strategy consulting company, was launched in 2014. The firm specializes in IT strategy consulting and cloud consulting & SI.Read More
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1005Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2022, Catenactio, a small Cybersecurity company, is located in Los Angeles, California. Their team specializes in Cybersecurity and IT managed services.Read More
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1006Undisclosed2 - 9 employeesIrvine, CASmall Cybersecurity company Promenade Software, is based in Irvine, California. The team offers Cybersecurity and cloud consulting & SI.Read More
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1007$25,000+50 - 249 employeesSan Francisco, CACustom software development company MindK was established in 2009. The agency provides Custom Software Development, Mobile App Development, AI Agents, Enterprise App Modernization, and more and has a midsize team. The agency is headquartered in San Francisco, California; Prague, Czech Republic and Kyiv, Ukraine.Read More
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AdidasIndustries
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1008$250,000+10 - 49 employeesSan Francisco, CAEstablished in 2023, RoamNook is a small IT strategy consulting company. Their team provides IT strategy consulting and cloud consulting & SI.Read More
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1009$50,000+250 - 999 employeesSunnyvale, CAFission Labs is a custom software development company. Established in 2008, the midsize company is in Sunnyvale, India and Hyderabad, India. Their services include custom software development, mobile app development, application testing, and web development.Read More
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1010$25,000+50 - 249 employeesMenlo Park, CARead More
Custom software development company Cambria Corporation was founded in 1984. The firm provides custom software development, mobile app development, web design, and web development and has a small team. The firm is headquartered in Menlo Park, California and Makati, Philippines.
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1011$5,000+50 - 249 employeesSan Francisco, CALeap Automations is an AI Agents company established in 2018. In San Francisco, California, the team specializes in AI Agents and AI Consulting.Read More
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1012$5,000+10 - 49 employeesPalo Alto, CARead More
Tessafold LLC is an application development company located in Palo Alto, California; Berlin, Germany; Jeddah, Saudi Arabia and Ciudad de México, Mexico. Founded in 2017, the small team specializes in Mobile App Development, Artificial Intelligence, UX/UI Design, cloud consulting & SI, and more.
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1013Undisclosed50 - 249 employeesCitrus Heights, CALogicTree IT Solutions is a mobile app development company. They offer Mobile App Development and Application Testing and were founded in 2007.Read More
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1014$1,000+50 - 249 employeesSan Francisco, CACrestline Digital, a branding firm, was launched in 2018. Headquartered in Sheridan, Wyoming; Denver, Colorado and San Francisco, California, their midsize team offers Branding, Advertising, Social Media Marketing, Search Engine Optimization, and more.Read More
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1015$1,000+2 - 9 employeesRiverside, CAOMNIX HUB LLC, a website development firm, was founded in 2025. In Riverside, California, the team offers Web Development and E-Commerce Development.Read More
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1016$25,000+50 - 249 employeesLos Angeles, CAUniqcli, a Marketing Strategy company, was launched in 2017. They are headquartered in Chicago, Illinois; Los Angeles, California; Philadelphia, Pennsylvania and Raleigh, North Carolina and have a midsize team. Uniqcli focuses on Marketing Strategy, cloud consulting & SI, Low/No Code Development, IT strategy consulting, and more.Read More
Clients
SootheIndustries
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1017$5,000+2 - 9 employeesLincoln, CAEstablished in 2000, Infinite Design & Marketing, a small web design company, is in Lincoln, California. Their team offers Web Design and Custom Software Development.Read More
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1018$1,000+2 - 9 employeesHayward, CAHikari Hub, a web design company, was launched in 2026. The firm focuses on Web Design, Advertising, IT strategy consulting, Web Development, and more and has a small team. The firm is located in Hayward, California.Read More
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1019Undisclosed2 - 9 employeesRedwood City, CABarnet Associates is a small Ridgefield, Connecticut-based CRM consulting and SI company. The team offers CRM consulting and SI and Custom Software Development.Read More
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1020$10,000+2 - 9 employeesGlendale, CAAgile Clouders, Inc. Is a Glendale, California-based custom software development firm. The small team provides Custom Software Development, UX/UI Design, Mobile App Development, Product Design, and more and was launched in 2011.Read More
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Check out a Software Developers in California with the most new reviews in the past 12 months.
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