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.
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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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1201Undisclosed50 - 249 employeesSanta Clara, CASATech Digital is a software development company. The Santa Clara, California-based team focuses on Custom Software Development and Enterprise App Modernization.Read More
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1202$10,000+50 - 249 employeesCupertino, CAHikesiya USA Inc. Is a midsize custom software development company launched in 2001. Their services include Custom Software Development and ERP consulting and SI.Read More
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1203$5,000+10,000+ employeesSan Francisco, CAGlobant is a large web development firm. They offer Web Development and Custom Software Development and were founded in 2003.Read More
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1204$25,000+250 - 999 employeesNewark, CAArgusoft is a software development firm. They offer Custom Software Development, Mobile App Development, Web Development, Enterprise App Modernization, and more and were established in 2001. Their midsize team is based in Newark, California and Gandhinagar, India.Read More
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World Health Organization (WHO)Industries
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1205$25,000+250 - 999 employeesPleasanton, CASoftware development firm Talentica Software was launched in 2003. The company provides Custom Software Development, Artificial Intelligence, Generative AI, Low/No Code Development, and more and has a midsize team.Read More
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Mist Systems (Juniper Company) Amplify Rupeek TalentpoolIndustries
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1206Undisclosed2 - 9 employeesLa Verne, CAPremier Computer Consulting, a small Business Consulting company, is in La Verne, California. Their services include Business Consulting and Custom Software Development.Read More
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1207Undisclosed2 - 9 employeesFolsom, CAFounded in 2003, SOURCiS, Inc., a small web design company, is headquartered in Folsom, California. Their services include Web Design and Web Development.Read More
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1208$100,000+10 - 49 employeesFolsom, CAFounded in 2018, Flexday Solutions LLC is a small Naperville, Illinois-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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1209$10,000+50 - 249 employeesTracy, CATravancore Analytics is a Tracy, California-based artificial intelligence company. They offer Artificial Intelligence, cloud consulting & SI, Custom Software Development, Generative AI, and more and were founded in 2007.Read More
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1210$1,000+1,000 - 9,999 employeesSan Francisco, CAProtiviti is a big data company founded in 2002. Their services include BI & big data consulting & SI and Custom Software Development.Read More
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1211Undisclosed10 - 49 employeesHayward, CALaunched in 2006, Global Tech Studio is a small Hayward, California-based software development company. Their team offers Custom Software Development and IT managed services.Read More
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1212Undisclosed10 - 49 employeesEl Cajon, CAHeadquartered in El Cajon, California, BioSoft Integrators is an IT strategy consulting company. The team offers IT strategy consulting and IT managed services.Read More
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1213Undisclosed10 - 49 employeesSan Francisco, CASoftware Next Door is a software development firm. The team focuses on Custom Software Development and Mobile App Development and is headquartered in San Francisco, California.Read More
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1214$25,000+50 - 249 employeesSan Francisco, CASmartCat is an AI development company. The midsize team is based in Novi Sad, Serbia and San Francisco, California. Their services include Artificial Intelligence, Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, and more.Read More
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1215$10,000+250 - 999 employeesCarlsbad, CAA3Logics Inc. Is a midsize IT strategy consulting company. Founded in 2003, the firm is located in Carlsbad, California; Jaipur, India and Singapore, Singapore. Their services include IT strategy consulting, Custom Software Development, Mobile App Development, IT managed services, and more.Read More
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AVATAR FloridaIndustries
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1216$10,000+10 - 49 employeesLos Angeles, CA3s Global Business Solutions is a Los Angeles, California-based IT staff augmentation company. The team focuses on IT staff augmentation and Custom Software Development.Read More
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1217Undisclosed50 - 249 employeesFremont, CAShiksha Infotech Pvt. Ltd. Is a midsize business intelligence company headquartered in Fremont, California. Their services include BI & big data consulting & SI and ERP consulting and SI.Read More
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1218Undisclosed50 - 249 employeesFolsom, CAFounded in 2001, Introlligent is an IT strategy consulting company. The midsize team focuses on IT strategy consulting and IT managed services.Read More
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1219$25,000+1,000 - 9,999 employeesLos Angeles, CAArtificial intelligence firm Simform was launched in 2010. They are headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and have a large team. Simform focuses on Artificial Intelligence, cloud consulting & SI, CRM consulting and SI, ERP consulting and SI, and more.Read More
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RedbullIndustries
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1220Undisclosed10 - 49 employeesLos Angeles, CAIT staff augmentation company FACTn Software is located in Nugegoda, Sri Lanka and Los Angeles, California. They specialize in IT staff augmentation and AI Agents.Read More
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Sensio Laudi Endely MyDriveIndustries
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1221Undisclosed10 - 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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1222$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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1223$10,000+50 - 249 employeesSan Francisco, CAFusion Informatics Limited is an artificial intelligence company. The midsize team is located in Ahmedabad, India; Bengaluru, India; San Francisco, California and Dubai, United Arab Emirates. Their services include Artificial Intelligence, Custom Software Development, Web Development, Mobile App Development, and more.Read More
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BoschIndustries
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1224$10,000+250 - 999 employeesSan Francisco, CAGeekyAnts is an application development firm established in 2006. The firm provides Mobile App Development, Custom Software Development, Artificial Intelligence, Web Development, and more and has a midsize team.Read More
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Siveco Romania Olive Garden Darden KhataBookIndustries
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1225$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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1226$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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1227$5,000+10 - 49 employeesSanta Clara, CAZAAG SYSTEMS is an IT staff augmentation company. The small Dhaka, Bangladesh-based company was founded in 2020. Their services include IT staff augmentation, E-Commerce Development, Artificial Intelligence, Custom Software Development, and more.Read More
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1228Undisclosed10 - 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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1229$5,000+50 - 249 employeesWest Hollywood, CANuvem 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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1230$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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Check out a Software Developers in California with the most new reviews in the past 12 months.
Most Reviewed
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