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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751$5,000+2 - 9 employeesLos Angeles, CA1969 Communications is a Los Angeles, California-based web development company. The team offers Web Development and Custom Software Development.Read More
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752$10,000+2 - 9 employeesSan Diego, CASoftware development company Notch8 is based in San Diego, California. Launched in 2007, the team offers Custom Software Development and Web Development.Read More
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753Undisclosed2 - 9 employeesSunnyvale, CAINT9 Solutions is a Business Consulting company. They were launched in 2015, and their services include Business Consulting and Custom Software Development.Read More
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754Undisclosed2 - 9 employeesRedwood City, CAPhlint, an user experience design company, was founded in 2006. The team offers UX/UI Design and Custom Software Development.Read More
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755Undisclosed2 - 9 employeesOakland, CACorporate Training & Coaching company tEQuitable focuses on Corporate Training & Coaching and Business Consulting. They were established in 2017.Read More
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756Undisclosed2 - 9 employeesSan Francisco, CADELTA Computer Solutions is a small San Francisco, California-based software development firm. Their services include Custom Software Development and CRM consulting and SI.Read More
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757Undisclosed2 - 9 employeesSacramento, CASunstoneIT is a small IT strategy consulting company located in Sacramento, California. Their services include IT strategy consulting and Custom Software Development.Read More
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758Undisclosed2 - 9 employeesLos Angeles, CAPerformigence Corporation is a custom software development firm. Launched in 1998, the team offers Custom Software Development and IT strategy consulting.Read More
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759$50,000+250 - 999 employeesSan Francisco, CAEmpat is an app development company established in 2013. They are in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida and have a midsize team. Their services include Mobile App Development, Custom Software Development, and Web Development.Read More
Clients
Obimy — A mobile app connecting loved ones across distances with over 10 million downloads on iOS and Android. Enables seamless communication and emotional connection. Mobile app development and social networking focus. Bigsister — Custom AI software designed for sales performance tracking and analysis, providing clean, accurate data to optimize sales teams and improve efficiency with advanced analytics. Trigga — A fintech project featuring payment systems and a comprehensive analytical database to support secure transactions and financial insights for smarter decision-making. DentalCare — Healthcare ecosystem with mobile app, web development, and CRM tools for managing patient records, tracking appointments, and sending automated reminders to improve patient care.Industries
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760$10,000+10 - 49 employeesIrvine, CAClouda Inc is a small e-commerce development company founded in 2018. Their team provides E-Commerce Development and Web Development.Read More
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Stanley Engineered FasteningIndustries
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761$10,000+10 - 49 employeesLos Angeles, CALexis Solutions is an AI Consulting company. The Sofia, Bulgaria-based firm was established in 2017. The small team focuses on AI Consulting, Custom Software Development, Web Development, Mobile App Development, and more.Read More
Clients
Onnoplus.com Kreston Bulmar Reviewhero.io Inoreader.comIndustries
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762$10,000+50 - 249 employeesSan Mateo, CAG360Technologies is a custom software development firm. Established in 2010, the team provides Custom Software Development, Generative AI, Application Testing, Application Management & Support, and more. Their midsize company is located in San Mateo, California and Montevideo, Uruguay.Read More
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763$5,000+10 - 49 employeesSan Francisco, CAExponent Partners, a custom software development company, is located in San Francisco, California and Seattle, Washington. They offer Custom Software Development and CRM consulting and SI.Read More
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764Undisclosed10 - 49 employeesIrvine, CAStrativa is an IT strategy consulting company founded in 2000. The agency provides IT strategy consulting and Cybersecurity, and is small.Read More
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765Undisclosed10 - 49 employeesIrvine, CACAL2CAL Corporation is a software development firm. They were established in 1996 and offer Custom Software Development and Corporate Training & Coaching.Read More
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766Undisclosed10 - 49 employeesPleasanton, CACrestPoint Solutions, an IT managed services company, was founded in 2000. The team offers IT managed services and Custom Software Development.Read More
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767Undisclosed10 - 49 employeesAliso Viejo, CAAccutive is a Cybersecurity company based in Aliso Viejo, California and Vancouver, Canada. The team provides Cybersecurity and IT managed services.Read More
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768$5,000+10 - 49 employeesSan Ramon, CARead More
Jack Frost Design, a cloud consulting & SI company, was launched in 1968. They are in San Ramon, California and Rocklin, California and have a small team. Their services include cloud consulting & SI, web development, e-commerce development, and corporate training & coaching.
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769Undisclosed10 - 49 employeesSan Diego, CAEstablished in 2017, JopeConnect is a small big data company. Their services include BI & big data consulting & SI and Custom Software Development.Read More
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770Undisclosed10 - 49 employeesMilpitas, CACrosslynx US LLC, a custom software development firm, is located in Milpitas, California. They offer Custom Software Development and Application Testing.Read More
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771Undisclosed10 - 49 employeesSunnyvale, CAFounded in 2005, Rapid Eagle Inc, a small custom software development company, is located in Sunnyvale, California. Their services include Custom Software Development and Business Consulting.Read More
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772$5,000+10 - 49 employeesAnaheim, CASoftUp Agency is an IT strategy consulting company launched in 2023. In Anaheim, California and Amsterdam, Netherlands, the team focuses on IT strategy consulting and Custom Software Development.Read More
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773$1,000+10 - 49 employeesMountain View, CATCO TEAM is a web development firm. The small team is headquartered in Yerevan, Armenia; Gyumri, Armenia and Mountain View, California. Their services include Web Development, Mobile App Development, E-Commerce Development, Custom Software Development, and more.Read More
Clients
Sparsis HoldingIndustries
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774Undisclosed2 - 9 employeesLos Angeles, CAFrothlogic, a software development firm, offers Custom Software Development and Mobile App Development. The firm is located in Los Angeles, California.Read More
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775$1,000+10 - 49 employeesSan Jose, CATécrave is a small web development company. Founded in 2019, the team specializes in Web Development and Custom Software Development.Read More
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776Undisclosed50 - 249 employeesSan Francisco, CASiliconMint is a San Francisco, California-based software development firm. Launched in 2012, the team focuses on Custom Software Development and Web Development.Read More
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777$10,000+10 - 49 employeesDublin, CAEstablished in 2019, Bayshore Intelligence Solutions is an AI firm. Their team provides Artificial Intelligence and Custom Software Development.Read More
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778$1,000+50 - 249 employeesLos Angeles, CANowcom is a Back Office Outsourcing company. Founded in 1996, their team provides Back Office Outsourcing and Custom Software Development.Read More
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779Undisclosed50 - 249 employeesBrisbane, CAVOX Network Solutions is a software development firm. The team focuses on Custom Software Development and Customer Service Outsourcing and is located in Brisbane, California.Read More
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780Undisclosed50 - 249 employeesMonterey, CABusiness Consulting company Advanced Onion, Inc. Was established in 2006. The team focuses on Business Consulting and Custom Software Development and is located in Monterey, California.Read More
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