Top 100 Software Development Companies in California
The Best of October 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.
List of the Best California Software Developers
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$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures, a custom software development company, is in Irvine, California. Established in 2017, the small team offers Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a custom software development firm. The Medina, Washington-based company was established in 2001. The small team focuses on Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more.Read More
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901$1,000+2 - 9 employeesSan Francisco, CALaunched in 2015, CoreTeam.io is a software development company. Their services include Custom Software Development and Web Development.Read More
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902$10,000+10 - 49 employeesSan Francisco, CAZaltech AI is an IT managed services company. The team focuses on IT managed services and Custom Software Development and is based in San Francisco, California and Dubai, United Arab Emirates.Read More
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903$1,000+2 - 9 employeesRichmond, CAYoucolabs is a custom software development company and Engineering company launched in 2021. The agency specializes in Custom Software Development and Engineering, and is small.Read More
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904$5,000+2 - 9 employeesSacramento, CACoreBackend is a software development company established in 2025. Headquartered in Sacramento, California, the team focuses on Custom Software Development and API Development.Read More
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905$5,000+2 - 9 employeesFairfield, CAAnalog 365, an Other Application Development and custom software development firm, was launched in 2023. The small team specializes in Other Application Development and Custom Software Development.Read More
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906$1,000+10 - 49 employeesMarina del Rey, CADino Code LA is a custom software development firm. They are based in Marina del Rey, California and have a small team. Their services include Custom Software Development, Artificial Intelligence, Mobile App Development, UX/UI Design, and more.Read More
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907$1,000+50 - 249 employeesEmeryville, CAMoogleLabs is an AI development company established in 2020. The midsize team focuses on Artificial Intelligence, AI Consulting, Custom Software Development, Low/No Code Development, and more. The agency is headquartered in Emeryville, California; Surrey, Canada; Sahibzada Ajit Singh Nagar, India and Mississauga, Canada.Read More
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908$1,000+10 - 49 employeesSan Ramon, CARoundtechsquare is a social media marketing agency. The team specializes in Social Media Marketing and Search Engine Optimization and is based in San Ramon, California and Vadodara, India.Read More
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909$25,000+2 - 9 employeesCarlsbad, CADigital Strategy company MC Consultants, Inc. Is based in Carlsbad, California. Their services include Digital Strategy and Custom Software Development.Read More
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910$5,000+2 - 9 employeesBurbank, CAWebsite development company Kaufman International is located in Burbank, California. Launched in 2006, the team focuses on Web Development and IT managed services.Read More
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911$10,000+10 - 49 employeesWestminster, CASoftware development firm MLTech Soft was launched in 2020. Their small team is located in Ho Chi Minh City, Vietnam; Singapore, Singapore and Westminster, California and focuses on Custom Software Development, IT managed services, Artificial Intelligence, Enterprise App Modernization, and more.Read More
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PSA Marine Private Limited Unilever Vietnam International Company Limited Lof International Dairy Products Joint Stock Company Yen Viet Joint Stock CompanyIndustries
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912$1,000+Freelancer employeesLa Mesa, CANidrosoft is a custom software development firm founded in 2024. The small team offers Custom Software Development and Artificial Intelligence.Read More
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913$5,000+250 - 999 employeesSan Francisco, CARead More
Zazmic Inc. is a digital agency that is headquartered in San Francisco with an office Dnipro, Ukraine. It was founded in 2014 and has more than 100 employees who specialize in web development, mobile app development, UX/UI design, mobile & app marketing, and email marketing.
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Rakuten Boostr Valassis UpChooseIndustries
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914Undisclosed2 - 9 employeesOceanside, CASoftware development firm Expeditionary Technical Solutions, Incorporated is in Oceanside, California. They provide Custom Software Development and Application Management & Support.Read More
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915Undisclosed2 - 9 employeesPleasant Hill, CARevealio, Inc., a software development firm, was launched in 2016. The team specializes in Custom Software Development and IT managed services and is based in Pleasant Hill, California.Read More
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916Undisclosed2 - 9 employeesLong Beach, CARead More
Located in Long Beach, California, Delta Data Services LLC is an IT strategy consulting company. The agency provides IT strategy consulting, BI & big data consulting & SI, IT managed services, and custom software development and is small.The agency was founded in 2009.
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917Undisclosed2 - 9 employeesGlendale, CAEstablished in 2010, toKernel is a web design agency. Their services include Web Design and Custom Software Development.Read More
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918Undisclosed2 - 9 employeesHuntington Beach, CAProticom is a custom software development firm. Based in Huntington Beach, California, the company was launched in 1996. Their services include Custom Software Development and Application Testing.Read More
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919$50,000+2 - 9 employeesSan Francisco, CAKid2Design is an Indianapolis, Indiana-based AI company. They provide Artificial Intelligence and Custom Software Development and were established in 2025.Read More
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920$5,000+10 - 49 employeesPlacentia, CAKreative Tek Solutions is a custom software development company. They are located in Placentia, California. Their team focuses on Custom Software Development and Artificial Intelligence.Read More
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921$10,000+250 - 999 employeesSan Jose, CARead More
Trajectus, a web design agency, is based in Southfield, Michigan and San Jose, California. They provide web design, e-commerce development, enterprise app modernization, application management & support, and more and were founded in 2015.
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922$50,000+250 - 999 employeesCamarillo, CARead More
Vizuri is a development and computer software company based in Herndon, Va. They were founded in 1986 and have a team of around 250 employees. Their services include custom software development, IT staff augmentation, and IT strategy consulting.
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AetnaIndustries
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923$10,000+50 - 249 employeesSan Mateo, CATensorway, an AI development company, was launched in 2019. Based in Alicante (Alacant), Spain and San Mateo, California, their midsize team provides Artificial Intelligence, AI Consulting, AI Agents, Custom Software Development, and more.Read More
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924UndisclosedFreelancer employeesSacramento, CAMobile app development company Electric Web is in Sacramento, California. They focus on mobile app development, custom software development, digital strategy, search engine optimization, and more and were launched in 2010.Read More
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925$10,000+2 - 9 employeesSan Diego, CAEstablished in 2023, Life Tree Studio is a small San Diego, California-based software development company. Their services include Custom Software Development and Web Development.Read More
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926$5,000+Freelancer employeesSan Francisco, CASiteAppy LLC is an Enterprise App Modernization company. The team focuses on Enterprise App Modernization and Custom Software Development and is in San Francisco, California.Read More
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927$10,000+50 - 249 employeesSan Francisco, CARead More
Kodexo Labs, an AI development company, is in Austin, Texas; London, England; Karachi, Pakistan and San Francisco, California. Founded in 2021, the midsize team specializes in Artificial Intelligence, Custom Software Development, Mobile App Development, AI Agents, and more.
Clients
Diesel Laptops (Inc. 5000 — Fleet Diagnostics) Extensiv ($130M+ Funded, Inc. 5000 — 3PL Warehouse Management) IFPG (#1 Franchise Broker Organization, North America) Teacher AI ($5M+ First-Year Revenue — AI Language Platform)Industries
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928$5,000+2 - 9 employeesIrvine, CASmall web development firm Softshop, is in Irvine, California. Their services include Web Development and Search Engine Optimization.Read More
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929$25,000+10 - 49 employeesRolling Hills Estates, CAIT managed services company Navinod Technologies LLP(Aykan®) was launched in 2017. They are headquartered in Mangaluru, India and Rolling Hills Estates, California and have a small team. Their services include IT managed services, Artificial Intelligence, AI Consulting, Generative AI, and more.Read More
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930$10,000+50 - 249 employeesMountain View, CAForgeahead Inc is a software development firm. They offer Custom Software Development, cloud consulting & SI, Mobile App Development, Application Testing, and more and were launched in 1999. Their midsize team is Mountain View, California-based.Read More
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