Top 100 Software Development Companies in California
The Best of December 2025Looking 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 is a software development firm. Their small team is located in Irvine, California. The firm specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more.Read More
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$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
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$10,000+10 - 49 employeesJohannesburg, South AfricaRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
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601Undisclosed250 - 999 employeesVentura, CAVSolvit, a custom software development firm, was established in 2006. The agency provides Custom Software Development and Cybersecurity, and is midsize.Read More
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602Undisclosed10 - 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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603Undisclosed2 - 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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604Undisclosed50 - 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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605Undisclosed250 - 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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606Undisclosed50 - 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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607Undisclosed2 - 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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608Undisclosed50 - 249 employeesPalo Alto, CACustom software development company Factored focuses on Custom Software Development and BI & big data consulting & SI. They were launched in 2019.Read More
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609Undisclosed50 - 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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610Undisclosed10 - 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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611Undisclosed250 - 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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612Undisclosed250 - 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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613Undisclosed50 - 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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614Undisclosed10 - 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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615$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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616$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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617$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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618$50,000+10 - 49 employeesSan Francisco, CAGearheart.io is a software development firm launched in 2012. Their small team is based in Kyiv, Ukraine; San Francisco, California and Newark, Delaware and provides Custom Software Development and Web Development.Read More
Clients
SmartSuiteIndustries
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619$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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620$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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621$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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622$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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623$10,000+50 - 249 employeesSacramento, CACubitrek, a digital strategy company, was founded in 2022. They are located in Sacramento, California and Karachi, Pakistan and have a midsize team. Cubitrek provides digital strategy, social media marketing, search engine optimization, pay per click, and more.Read More
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624$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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625$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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626$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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627$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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628$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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629Undisclosed10 - 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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630$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
Industries
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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
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