Top 100 Software Development Companies in California
The Best of March 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, CACustom software development company Kingsmen Digital Ventures is based in Irvine, California. The small team specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more and was launched in 2017.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is an artificial intelligence firm founded in 2001. Their small team is in Medina, Washington and offers Artificial Intelligence, UX/UI Design, AI Consulting, Custom Software Development, and more.Read More
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811Undisclosed50 - 249 employeesSunnyvale, CABased in Sunnyvale, California, TRUEXTEND, Inc. Is a custom software development firm. The team offers Custom Software Development and Web Development.Read More
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812Undisclosed50 - 249 employeesChico, CALiatrio, a cloud consulting & SI company, was launched in 2023. The team focuses on cloud consulting & SI and Custom Software Development and is headquartered in Chico, California.Read More
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813Undisclosed50 - 249 employeesChico, CAShasta QA , an Application Testing company, was launched in 2002. The midsize team offers Application Testing and Custom Software Development.Read More
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814Undisclosed50 - 249 employeesRedwood City, CASplit Software, Inc. Is an Application Testing company. They offer Application Testing and Custom Software Development and were launched in 2015.Read More
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815Undisclosed50 - 249 employeesSan Diego, CAMiva, Inc. Is a midsize SEO services firm based in Tampa, Florida and San Diego, California. Their services include Search Engine Optimization and Web Design.Read More
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816Undisclosed50 - 249 employeesSan Diego, CAS-Square Systems, Inc, a cloud consulting & SI company, offer cloud consulting & SI and IT managed services. They were founded in 2002.Read More
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817$1,000+50 - 249 employeesLos Angeles, CAMadiff is an artificial intelligence company. Their midsize team is located in Warszawa, Poland; Braga, Portugal; Kraków, Poland and Los Angeles, California. The agency provides Artificial Intelligence, IT managed services, Custom Software Development, Blockchain, and more.Read More
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AWP Polska SP. z o.o.Industries
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818$1,000+10 - 49 employeesSunnyvale, CAArosys Technologies, a small software development company, is headquartered in Sunnyvale, California and Bhilai, India. The team focuses on Custom Software Development and Application Testing.Read More
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819$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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820$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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821$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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822$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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823$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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824$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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825$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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826$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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827$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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828$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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829$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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830$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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831$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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832$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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833$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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834$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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835UndisclosedFreelancer 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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836Undisclosed2 - 9 employeesWest Covina, CAIMCOR Technologies, a small software development company, is headquartered in West Covina, California. Their services include Custom Software Development and E-Commerce Development.Read More
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837Undisclosed2 - 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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838Undisclosed2 - 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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839Undisclosed2 - 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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840Undisclosed2 - 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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