Top 100 Software Development Companies in California
The Best of May 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 software development company, is located in Irvine, California. The small team provides Custom Software Development, Mobile App Development, and UX/UI Design and was founded in 2017.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a Medina, Washington-based UX agency. The small team focuses on UX/UI Design, Mobile App Development, Custom Software Development, Web Design, and more and was established in 2001.Read More
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841$10,000+50 - 249 employeesLos Angeles, CAUX company Phenomenon Studio was launched in 2019. Their midsize team is headquartered in Dover, Delaware; Chicago, Illinois; New York, New York and Los Angeles, California. Phenomenon Studio focuses on UX/UI Design, Web Development, Branding, Web Design, and more.Read More
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Airportr Nomupay One Text ShagaIndustries
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842$1,000+10 - 49 employeesSanta Clara, CAArdira is a cloud consulting & SI company. Located in Santa Clara, California and Ahmedabad, India, the firm specializes in cloud consulting & SI and Mobile App Development.Read More
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843$50,000+50 - 249 employeesSan Francisco, CALaunched in 2017, Missing Corner is a midsize artificial intelligence development company. Their team offers Artificial Intelligence and Custom Software Development.Read More
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844$100,000+50 - 249 employeesMarina del Rey, CARead More
Established in 2012, Unique Software Development is a data analytics company. The firm offers BI & big data consulting & SI, Web Development, Custom Software Development, Mobile App Development, and more and has a midsize team. The firm is headquartered in Dallas, Texas; Washington, District of Columbia; New York, New York and Austin, Texas.
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MODE TransportationIndustries
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845$1,000+10 - 49 employeesNewark, CAStackmybiz is a website development firm. The agency is in Ranchi, India and Newark, California. Their services include Web Development and Mobile App Development.Read More
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846$1,000+50 - 249 employeesMission Viejo, CALaunched in 2006, Infoshare Systems, Inc is a branding company. The team specializes in Branding and Digital Strategy.Read More
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847$10,000+250 - 999 employeesSan Francisco, CAEmpat is an app development company. They provide Mobile App Development, Custom Software Development, Artificial Intelligence, and Web Development and were founded in 2013. The company is located in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida.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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848$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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849$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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850$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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851$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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852$5,000+50 - 249 employeesDublin, CASoftware Developement is a midsize cloud consulting & SI company. In Noida, India, the agency was launched in 2021. Their team provides cloud consulting & SI, IT staff augmentation, custom software development, AR/VR development, and more.Read More
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853$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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854$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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855$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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856$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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857$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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858UndisclosedFreelancer 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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859Undisclosed2 - 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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860Undisclosed2 - 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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861Undisclosed2 - 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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862Undisclosed2 - 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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863Undisclosed2 - 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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864$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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865$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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866$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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867$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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868$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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869$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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870$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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