Top 100 Software Development Companies in California
The Best of July 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 software development company, is located in Irvine, California. The small team provides Custom Software Development, Mobile App Development, and UX/UI Design and was founded in 2017.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a Medina, Washington-based UX agency. The small team focuses on UX/UI Design, Mobile App Development, Custom Software Development, Web Design, and more and was established in 2001.Read More
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661Undisclosed10 - 49 employeesManteca, CAIn Manteca, California, ExtendAg: A Cultura Company is a small custom software development company. Their services include Custom Software Development.Read More
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662Undisclosed2 - 9 employeesNapa, CAThe AIS Group, a custom software development company, was launched in 1995. Headquartered in Napa, California, the team specializes in Custom Software Development and ERP consulting and SI.Read More
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663Undisclosed50 - 249 employeesTorrance, CABQE Software is a custom software development firm located in Torrance, California. The team provides Custom Software Development.Read More
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664Undisclosed250 - 999 employeesAgoura Hills, CAMidsize software development firm and Business Consulting company Infospectrum Inc., is in Agoura Hills, California. The team specializes in Custom Software Development and Business Consulting.Read More
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665Undisclosed50 - 249 employeesOrange, CAMSM - Medical Specialties Managers, Inc. Is an Orange, California-based custom software development company. They focus on Custom Software Development and Business Consulting.Read More
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666Undisclosed2 - 9 employeesIrvine, CAImmunant is a software development firm. Launched in 2014, the firm is based in Irvine, California. Their services include Custom Software Development.Read More
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667Undisclosed50 - 249 employeesIrvine, CALaunched in 2006, OrangePeople is a custom software development company. The team specializes in Custom Software Development and BI & big data consulting & SI.Read More
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668Undisclosed10 - 49 employeesCampbell, CAMaris Consulting Group℠, a custom software development firm, was founded in 2016. They specializes in Custom Software Development and IT staff augmentation.Read More
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669Undisclosed250 - 999 employeesManhattan Beach, CALaunched in 2013, Qvest.US is a midsize IT managed services company. Their team provides IT managed services and Custom Software Development.Read More
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670Undisclosed250 - 999 employeesSan Francisco, CAIn San Francisco, California and New York, New York, Quantcast is a pay per click company. Their services include Pay Per Click and Custom Software Development.Read More
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671Undisclosed50 - 249 employeesCupertino, CASoftsmith is an Application Testing company in Cupertino, California. Their services include Application Testing and Custom Software Development.Read More
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672Undisclosed10 - 49 employeesOakland, CASoftware development firm and Application Testing company npm, Inc. Is based in Oakland, California. The team specializes in Custom Software Development and Application Testing.Read More
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673$5,000+2 - 9 employeesFresno, CALikeitsolutions is a Karachi, Pakistan-based web development company. They provide Web Development and Mobile App Development and were established in 2019.Read More
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674$5,000+2 - 9 employeesLos Angeles, CASC Tech is a web design company. Headquartered in Los Angeles, California, the team offers Web Design and Web Development.Read More
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675$1,000+2 - 9 employeesLos Angeles, CALaunched in 2016, Mobiweb Global Solutions is a social media marketing agency. The small team specializes in Social Media Marketing and Search Engine Optimization.Read More
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676Undisclosed2 - 9 employeesLos Angeles, CAPlexipi, an Advertising company, was launched in 2025. The company provides Advertising and Direct Marketing, and is small.Read More
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677$75,000+10 - 49 employeesSan Diego, CAVault R&D is a small IT strategy consulting company. In San Diego, California, the company was founded in 2022. Their team provides IT strategy consulting, custom software development, enterprise app modernization, ux/ui design, and more.Read More
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678$10,000+10 - 49 employeesOrange, CAMarketing Strategy company pave.agency is located in Orange, California. The team specializes in Marketing Strategy and Ecommerce Marketing.Read More
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679$1,000+10 - 49 employeesAlpine, CAWeb Nox Designs is a software development firm founded in 2023. Their services include Custom Software Development and Web Development.Read More
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680$5,000+10 - 49 employeesSan Francisco, CABased in San Francisco, California, Surge Tech Partners is a mobile application development company. Their services include Mobile App Development and Web Development.Read More
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681$10,000+10 - 49 employeesSan Francisco, CADevsHire.ai is an IT staff augmentation company in San Francisco, California. Their services include IT staff augmentation and IT managed services.Read More
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682$10,000+10 - 49 employeesOakland, CARead More
Founded in 2021, Nimi Tech Limited is a small software development firm based in Oakland, California; Colombo, Sri Lanka and Chennai, India. Their services include custom software development, web development, mobile app development, IT staff augmentation, and more.
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683$5,000+10 - 49 employeesFremont, CATOPSYNTAX INC, a software development firm, is in Fremont, California. They specialize in Custom Software Development and Enterprise App Modernization and were founded in 2018.Read More
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684$10,000+10 - 49 employeesMountain View, CALocated in Mountain View, California, Koalesce Designs is an UX agency. Their services include UX/UI Design and Mobile App Development.Read More
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685$1,000+10 - 49 employeesFoster City, CALihan Technologies, a web development company, was established in 2017. The small team offers Web Development and Mobile App Development.Read More
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686$10,000+10 - 49 employeesHuntington Beach, CAXoftsystems is an IT staff augmentation company founded in 2020. The small team focuses on IT staff augmentation and IT strategy consulting.Read More
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687$5,000+10 - 49 employeesMurrieta, CALaunched in 2006, SYSTELLEX is a social media marketing company. The team offers Social Media Marketing and Search Engine Optimization.Read More
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688Undisclosed10 - 49 employeesLong Beach, CA5 Elements Entertainment is a web development company. Founded in 2009, the team specializes in Web Development and Mobile App Development. The agency is located in Long Beach, California.Read More
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689$5,000+10 - 49 employeesLos Angeles, CANorth Blue Networks, a Cybersecurity company, was established in 1998. The team specializes in Cybersecurity and IT managed services.Read More
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690$5,000+10 - 49 employeesLos Angeles, CAFounded in 2014, Mohi is a web development firm. The team provides Web Development and E-Commerce Development and is based in Los Angeles, California.Read More
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Check out a Software Developers in California with the most new reviews in the past 12 months.
Most Reviewed
Software Developers
California
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- 12 9 new reviews
- 13 8 new reviews
- 14 8 new reviews
- 15 7 new reviews
