Top 100 Software Development Companies in California
The Best of March 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, CACustom software development company Kingsmen Digital Ventures is based in Irvine, California. The small team specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more and was launched in 2017.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is an artificial intelligence firm founded in 2001. Their small team is in Medina, Washington and offers Artificial Intelligence, UX/UI Design, AI Consulting, Custom Software Development, and more.Read More
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961Undisclosed2 - 9 employeesPasadena, CAMighty Ant Data Works is a software development company. Launched in 1989, their team specializes in Custom Software Development.Read More
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962Undisclosed2 - 9 employeesWest Covina, CAAtlas Software Group is a custom software development company launched in 2005. The agency offers Custom Software Development and cloud consulting & SI.Read More
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963Undisclosed50 - 249 employeesSan Francisco, CACorona Labs is a San Francisco, California-based application development firm. They provide Mobile App Development and Custom Software Development and were founded in 2008.Read More
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964Undisclosed50 - 249 employeesOrange, CAEstablished in 2015, LMNTRIX is a midsize Orange, California-based custom software development firm. Their services include Custom Software Development and Cybersecurity.Read More
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965Undisclosed10 - 49 employeesSan Diego, CALaunched in 2017, Search Rebel LLC is a software development company. Headquartered in San Diego, California, the team specializes in Custom Software Development and BI & big data consulting & SI.Read More
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966$25,000+50 - 249 employeesSan Mateo, CADivami, a custom software development company, is in Hyderabad, India; San Mateo, California and Bengaluru, India. The agency focuses on Custom Software Development, UX/UI Design, Artificial Intelligence, Low/No Code Development, and more and has a midsize team.The agency was established in 2008.Read More
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Google LLCIndustries
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967$10,000+10 - 49 employeesSan Francisco, CAPhiBonacci AI is a software development firm established in 2021. The small team specializes in custom software development, AR/VR development, blockchain, corporate training & coaching, and more. The firm is in Ahmedabad, India and San Francisco, California.Read More
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Wartsila Lenovo Qualcomm Jurong DigitalIndustries
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968$5,000+250 - 999 employeesSanta Monica, CABSS Commerce is an e-commerce development company established in 2012. Their midsize team is headquartered in Hanoi, Vietnam; Santa Monica, California; London, England and Singapore, Singapore. The company offers E-Commerce Development, Mobile App Development, IT strategy consulting, Web Design, and more.Read More
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969$50,000+250 - 999 employeesMilpitas, CARead More
West Agile Labs is a software development and digital design company. The team is headquartered in San Francisco and has additional offices in Pakistan, Ukraine, and India. Founded in 2012, they currently employ over 120 professionals. West Agile Labs provides custom software development, e-commerce development, and mobile app development services.
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UnationIndustries
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970$10,000+50 - 249 employeesPalo Alto, CADatamart is a midsize Palo Alto, California-based custom software development company. Their services include Custom Software Development and Web Development.Read More
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971$10,000+10 - 49 employeesSan Diego, CAIn San Diego, California, MJD Interactive is a web design agency. They offer Web Design and UX/UI Design.Read More
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972Undisclosed10 - 49 employeesPasadena, CAWeb design agency Upgrade Consulting focuses on Web Design and UX/UI Design. They were launched in 2023.Read More
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973Undisclosed1,000 - 9,999 employeesSan Mateo, CAHeinsohn, an IT staff augmentation company, was launched in 1977. The team offers IT staff augmentation and Custom Software Development.Read More
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974$10,000+50 - 249 employeesSan Jose, CARead More
Zone24x7 Inc. is a software and tech company based in San Jose, Calif. Founded in 2003, their team of over 50 experts provides IoT development, custom software development, and cloud consulting services for clients ranging from small startups to large corporations.
Clients
Macy’sIndustries
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975$25,000+10,000+ employeesLos Angeles, CAVXI Global Solutions Inc. Is a Customer Service Outsourcing company established in 1998. The company offers Customer Service Outsourcing and Call Center Services.Read More
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976$50,000+50 - 249 employeesRedondo Beach, CALimestone Digital is a midsize Karlín, Czech Republic-based IT strategy consulting company. They specialize in IT strategy consulting, Web Development, IT staff augmentation, Custom Software Development, and more and were launched in 2016.Read More
Clients
Terravate LLCIndustries
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977$1,000+250 - 999 employeesSan Jose, CAFounded in 2015, InfoStride is an app development company. The firm focuses on Mobile App Development, Web Development, Web Design, Custom Software Development, and more and has a midsize team.Read More
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978$5,000+2 - 9 employeesFremont, CANavaris Digital, a cloud consulting & SI company, was launched in 2016. The team offers cloud consulting & SI and IT managed services and is headquartered in Bengaluru, India and Fremont, California.Read More
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979$1,000+2 - 9 employeesMenifee, CATrapnstudio, a small AI Consulting company, is based in Menifee, California. The team offers AI Consulting and Custom Software Development.Read More
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980Undisclosed2 - 9 employeesSouth Lake Tahoe, CACustom software development company Demajh Inc was launched in 2020. The small team specializes in Custom Software Development and Artificial Intelligence.Read More
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981$5,000+2 - 9 employeesMilpitas, CABg2.ai is an artificial intelligence company. They specialize in Artificial Intelligence and AI Consulting and were established in 2025.Read More
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982$10,000+2 - 9 employeesLos Angeles, CAForthgoing is a small web design agency established in 2025. Their team provides Web Design and UX/UI Design.Read More
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983$10,000+50 - 249 employeesMountain View, CATechmave Software is an app development company. The agency is headquartered in Noida, India and Mountain View, California. Their team specializes in Mobile App Development and Web Development.Read More
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984Undisclosed250 - 999 employeesMenlo Park, CAKumaran Systems is a Menlo Park, California-based Enterprise App Modernization company. Founded in 1991, the team focuses on Enterprise App Modernization and BI & big data consulting & SI.Read More
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985$1,000+Freelancer employeesSacramento, CAUplift Digital Solutions, LLC, a web design company, offer Web Design and UX/UI Design. They were founded in 2022.Read More
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986$5,000+Freelancer employeesAtascadero, CA//TREVORFRY.TECH is a branding company founded in 2024. The team provides Branding and Web Design.Read More
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987$1,000+Freelancer employeesGardena, CA10xDev is a SEO services firm. Established in 2025, the agency focuses on Search Engine Optimization and Web Design.Read More
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988UndisclosedFreelancer employeesRohnert Park, CACzezar Design & Development is an UX agency in Rohnert Park, California. They specialize in UX/UI Design and Corporate Photography.Read More
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989$25,000+50 - 249 employeesLos Angeles, CATechgropse FZC LLC is an app development firm. The midsize Noida, India-based firm was launched in 2015. Their services include Mobile App Development, Artificial Intelligence, E-Commerce Development, and Custom Software Development.Read More
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990$75,000+50 - 249 employeesDel Mar, CAValere, an artificial intelligence firm, is based in Marlborough, Massachusetts; Brookline, Massachusetts; Washington, District of Columbia and Seattle, Washington. The midsize company was launched in 2019. Their services include Artificial Intelligence, Custom Software Development, AI Consulting, Generative AI, and more.Read More
Clients
Caylent | AWS Innovation Partner of the Year (x4) Death & Co iHeart Media Johns Hopkins UniversityIndustries
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