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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1141$5,000+2 - 9 employeesLong Beach, CAUP Creative, Inc. Is a Digital Strategy company launched in 2012. The team provides Digital Strategy and Social Media Marketing.Read More
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Century 21Industries
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1142$25,000+250 - 999 employeesAliso Viejo, CAEstablished in 2009, ITRex is an artificial intelligence development company. The firm focuses on Artificial Intelligence, BI & big data consulting & SI, Custom Software Development, IoT development, and more and has a midsize team.Read More
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Dollar Shave ClubIndustries
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1143$5,000+50 - 249 employeesSan Francisco, CATechnoBrains Business Solutions LLP is a San Francisco, California-based custom software development company. The midsize agency was launched in 2009. Their services include Custom Software Development, Web Development, Artificial Intelligence, AI Consulting, and more.Read More
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1144$5,000+2 - 9 employeesSan Jose, CAPixelwebsource is a small web design agency based in San Jose, California. The team specializes in Web Design and Custom Software Development.Read More
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1145$50,000+250 - 999 employeesLos Angeles, CANet Solutions, an artificial intelligence firm, was launched in 2000. They are located in Toronto, Canada; Chandigarh, India; London , England and New York, New York and have a midsize team. Net Solutions specializes in Artificial Intelligence, Custom Software Development, and E-Commerce Development.Read More
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MicrosoftIndustries
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1146Undisclosed50 - 249 employeesSan Francisco, CAUrtheCast is a custom software development company. Located in Vancouver, Canada and San Francisco, California, the team focuses on Custom Software Development and Mobile App Development.Read More
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1147$25,000+10 - 49 employeesNew York, NYRead More
Established in 2013, Jafton is a mobile app development company. The small team offers Mobile App Development, Custom Software Development, and Artificial Intelligence. The agency is in New York, New York; Miami, Florida; Los Angeles, California and Austin, Texas.
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SheinIndustries
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1148$10,000+50 - 249 employeesLos Angeles, CARead More
BN Solutions Inc is a web design agency and user experience company. Their midsize team is located in Sheridan, Wyoming. The company focuses on web design and ux/ui design.
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1149UndisclosedFreelancer employeesPetaluma, CABased in Petaluma, California, Aztaz Software LLC is an Application Testing company. Their services include Application Testing and Custom Software Development.Read More
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1150Undisclosed50 - 249 employeesSanta Clara, CAFounded in 2007, Neova Solutions is a midsize Santa Clara, California-based Robotics Process Automation company. Their services include Robotics Process Automation and DevOps Managed Services.Read More
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1151Undisclosed10 - 49 employeesPalo Alto, CAUnleash is a small DevOps Managed Services company launched in 2019. Their team provides DevOps Managed Services and Custom Software Development.Read More
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1152$1,000+50 - 249 employeesSan Diego, CACallZent is a Market Research company launched in 2023. The company specializes in Market Research, Customer Service Outsourcing, Call Center Services, Custom Software Development, and more and has a midsize team.Read More
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1153$10,000+10 - 49 employeesHuntington Beach, CAAlokin is a software development company founded in 2011. Their services include Custom Software Development and Web Development.Read More
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1154$5,000+10 - 49 employeesSan Francisco, CALocated in Milano, Italy and San Francisco, California, WebRatio is a custom software development company. They focus on Custom Software Development and Mobile App Development.Read More
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1155$50,000+250 - 999 employeesPalo Alto, CARead More
InApp was founded in 2000 and currently has 300+ employees. Headquartered in Trivandrum, India, their services include web development, custom software development, and mobile app development. They also have another location in Palo Alto, Calif.
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1156Undisclosed10 - 49 employeesLos Angeles, CAHuman is an Advertising company. They are located in Boulder, Colorado and Los Angeles, California. Their team focuses on Advertising and Custom Software Development.Read More
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1157$5,000+10 - 49 employeesLos Angeles, CAKento Systems is a small Accounting company. Launched in 1990, the team offers Accounting and Branding.Read More
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1158Undisclosed10 - 49 employeesRiverside, CAConstantMD Inc. Is a social media marketing agency. Established in 2010, their team provides Social Media Marketing and Search Engine Optimization.Read More
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1159Undisclosed10 - 49 employeesLong Beach, CAEnsymbios, Inc. Is an IT strategy consulting company. The team offers IT strategy consulting and CRM consulting and SI and is based in Long Beach, California.Read More
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1160Undisclosed10 - 49 employeesLos Angeles, CAFounded in 1991, Sysnet Solutions is a small Los Angeles, California-based cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.Read More
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1161Undisclosed10 - 49 employeesPasadena, CALocated in Pasadena, California, Cybertegic is a small Email Marketing company. Their services include Email Marketing and Search Engine Optimization.Read More
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1162$5,000+50 - 249 employeesDaly City, CARead More
Founded in 2008, Tech4biz Solutions Private Limited is a midsize web design company headquartered in Bengaluru, India and Daly City, California. Their services include web design, custom software development, IoT development, Artificial Intelligence, and more.
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1163Undisclosed250 - 999 employeesIrvine, CARead More
Authority Partners is a software firm based in Irvine, Calif. with more than 250 employees. They are experts in UX/UI design, IT managed services, and custom software development for various clients.
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ArtisIndustries
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1164$10,000+50 - 249 employeesUnion City, CACloudpacer Inc, a custom software development company, specializes in Custom Software Development and Web Development. The company is in Union City, California and Lahore, Pakistan.Read More
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1165$5,000+2 - 9 employeesSan Jose, CALocated in San Jose, California and Chandigarh, India, Frisco Web Solutions is a small SEO agency. Their services include Search Engine Optimization and Web Design.Read More
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1166$10,000+1,000 - 9,999 employeesSanta Clara, CAMosChip is a custom software development firm. They are in Hyderabad, India and Bengaluru, India, and their services include Custom Software Development and Other Application Development.Read More
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1167Undisclosed250 - 999 employeesPleasanton, CAFounded in 2005, Folio3 Software is a midsize Pleasanton, California-based custom software development firm. Their team offers Custom Software Development and Web Development.Read More
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1168$10,000+10 - 49 employeesLos Angeles, CACitrusbyte, a small website development firm, is based in Los Angeles, California and New York, New York. The team focuses on Web Development and Custom Software Development.Read More
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1169$10,000+2 - 9 employeesSolana Beach, CAType G is an Advertising company. Their small team is located in Solana Beach, California. Their services include Advertising and Branding.Read More
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1170$5,000+2 - 9 employeesSanta Rosa, CAGraphicSmith is a SEO company based in Santa Rosa, California. Founded in 1983, the team offers Search Engine Optimization and Web Design.Read More
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