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.
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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1081Undisclosed10 - 49 employeesFolsom, CAIMG Advisors LLC is an IT strategy consulting company. Launched in 2008, the company focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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1082$100,000+250 - 999 employeesMilpitas, CARysun Labs Inc. Is a big data company. The midsize Milpitas, California-based company was launched in 2001. Their team offers BI & big data consulting & SI, cloud consulting & SI, IT managed services, Custom Software Development, and more.Read More
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KonfluenceIndustries
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1083$5,000+50 - 249 employeesSanta Rosa, CARead More
GeneXus Consulting is corporate software development company based in Montevideo, Uruguay, with an additional location in Santa Rosa, Calif. Founded in 1988, the team of nearly 110 provides web, mobile app, and custom software development, enterprise app modernization, and application testing services.
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BPSIndustries
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1084$5,000+10 - 49 employeesSanta Clara, CAZAAG SYSTEMS, an IT staff augmentation company, is in Dhaka, Bangladesh and Santa Clara, California. They offer IT staff augmentation, Custom Software Development, E-Commerce Development, Mobile App Development, and more and were founded in 2020.Read More
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1085$50,000+250 - 999 employeesPalo Alto, CARead More
Waverley Software is a software engineering company headquartered in Palo Alto, Calif. It also has offices in Boston, Kharkiv, Ukraine, Lviv, Ukraine, and Ho Chi Minh, Vietnam. Founded in 1992, Waverley's team of over 80 employees mainly provides midmarket brands around the world with custom software development, mobile app development, and IoT development services.
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Mozilla Seagate Yale AbbotIndustries
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1086Undisclosed10 - 49 employeesSan Mateo, CALaunched in 2018, ZealoTech People is an user experience company. Headquartered in San Mateo, California and Nashik, India, the team specializes in UX/UI Design and Custom Software Development.Read More
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1087$5,000+50 - 249 employeesMiami, FLNuvem Group is a cloud consulting & SI company founded in 2015. Headquartered in Miami, Florida and London, England, the team focuses on cloud consulting & SI and Custom Software Development.Read More
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1088$5,000+10 - 49 employeesSan Diego, CALabKey is a small software development company located in Seattle, Washington and San Diego, California. The team offers Custom Software Development and cloud consulting & SI.Read More
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MITIndustries
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1089$5,000+2 - 9 employeesSan Jose, CAWeb design company Rasteroids Design was launched in 2000. The team offers Web Design and Custom Software Development and is headquartered in San Jose, California.Read More
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1090Undisclosed2 - 9 employeesDowney, CALatino Graphics, a custom software development company, was established in 2011. They provides Custom Software Development and Graphic Design.Read More
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1091Undisclosed2 - 9 employeesLos Angeles, CAFounded in 2015, Tharatech LLC is a custom software development firm. The team focuses on Custom Software Development and Application Management & Support.Read More
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1092Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2021, One River Consulting Inc, a small software development company, is headquartered in Los Angeles, California. Their team offers Custom Software Development and Web Development.Read More
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1093$10,000+10 - 49 employeesSan Jose, CAArastu Systems is an IoT development company. The agency is in San Jose, California and Ahmedabad, India. Their team provides IoT development and Enterprise App Modernization.Read More
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1094$25,000+50 - 249 employeesSanta Monica, CAHeadquartered in Santa Monica, California; Zaporizhzhia, Ukraine and Kyiv, Ukraine, IT-Dimension Inc. Is a web development company. The midsize team offers Web Development, Mobile App Development, UX/UI Design, Application Testing, and more and was founded in 2007.Read More
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1095$5,000+50 - 249 employeesSan Francisco, CAGITS Indonesia is a midsize cloud consulting & SI company. Based in Bandung, Indonesia, the firm was founded in 2010. Their team focuses on cloud consulting & SI, mobile app development, custom software development, and web development.Read More
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1096$10,000+250 - 999 employeesOaklands Park, AustraliaAVROX Solutions, a custom software development firm, was founded in 2015. Their midsize team is based in Oaklands Park, Australia; Rawalpindi, Pakistan and Palo Alto, California. The agency focuses on custom software development, web development, web design, ux/ui design, and more.Read More
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1097$250,000+250 - 999 employeesSan Francisco, CACode and Theory is a Digital Strategy company. The midsize New York, New York-based team offers Digital Strategy and Web Design. The company was launched in 2001.Read More
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1098Undisclosed50 - 249 employeesFremont, CAPETADATA is a software development company. They are in Fremont, California and Hyderabad, India and have midsize team. They offer Custom Software Development and Back Office Outsourcing.Read More
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1099$10,000+10 - 49 employeesFremont, CAFounded in 2012, The Awesome Game Studio is an AR/VR development company. Their team offers AR/VR development and Custom Software Development.Read More
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1100Undisclosed10 - 49 employeesIrvine, CAUX design company Avente, Inc. Was founded in 2017. The firm specializes in UX/UI Design and IT managed services, and is small.Read More
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1101Undisclosed10 - 49 employeesRoseville, CAFounded in 2009, Pacific Data Integrators is a business intelligence company. In Roseville, California, the team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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1102Undisclosed10 - 49 employeesCorte Madera, CAApplication Testing company Critical Logic is headquartered in Corte Madera, California. Their services include Application Testing and Custom Software Development.Read More
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1103Undisclosed10 - 49 employeesTemecula, CALaunched in 1996, Umetech, Inc. Is a small IT strategy consulting company located in Temecula, California. Their team provides IT strategy consulting and cloud consulting & SI.Read More
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1104$5,000+50 - 249 employeesMountain View, CAKeyPoint Technologies is an user experience agency. They were founded in 2004 and provide UX/UI Design and Translation.Read More
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1105$1,000+2 - 9 employeesLos Angeles, CACodeger is a web design company founded in 2018. The team focuses on Web Design and Web Development and is headquartered in Delhi, India and Toronto, Canada.Read More
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1106$10,000+1,000 - 9,999 employeesMenlo Park, CATrantor Inc. Is an app development company launched in 2012. Their large team is located in Menlo Park, California; Chandigarh, India; Vancouver, Canada and Heredia, Costa Rica. Their services include Mobile App Development, Custom Software Development, Web Development, BI & big data consulting & SI, and more.Read More
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GenpactIndustries
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1107$1,000+50 - 249 employeesHuntington Beach, CAAmbsan Technologies is a Karachi, Pakistan-based custom software development company. The team provides Custom Software Development and Mobile App Development.Read More
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1108$5,000+2 - 9 employeesCarlsbad, CACode By Design is a website development company. Based in West Palm Beach, Florida and New York, New York, the team specializes in Web Development and E-Commerce Development.Read More
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1109$50,000+50 - 249 employeesAgoura Hills, CATechAhead is a mobile application development firm founded in 2009. The company offers Mobile App Development, Artificial Intelligence, Web Development, and Custom Software Development and has a midsize team.Read More
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AXA University of Toronto Audi American ExpressIndustries
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1110$5,000+50 - 249 employeesSan Diego, CAApplication development firm Qodestar was established in 2022. They are based in Seattle, Washington; Nashville, Tennessee; New York, New York and Tampa, Florida and have a midsize team. Their services include Mobile App Development, UX/UI Design, Mobile & App Marketing, Product Design, and more.Read More
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