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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1261$5,000+2 - 9 employeesSan Diego, CAITegrity Web Technologies is a San Diego, California-based SEO agency. Founded in 2002, the team provides Search Engine Optimization and Web Design.Read More
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1262Undisclosed2 - 9 employeesPalo Alto, CASmart IT Concepts is a custom software development company. The Palo Alto, California-based firm was established in 2009. Their services include Custom Software Development and Web Development.Read More
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1263Undisclosed2 - 9 employeesLos Angeles, CAAztecaNet Inc. Is a software development firm headquartered in Los Angeles, California. They focus on Custom Software Development and Web Development.Read More
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1264Undisclosed2 - 9 employeesPalo Alto, CAPurgo AI is an Application Testing company headquartered in Palo Alto, California. They focus on Application Testing and cloud consulting & SI.Read More
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1265$10,000+50 - 249 employeesLos Angeles, CAPingle Studio is a mobile app development firm established in 2007. Their services include Mobile App Development and Custom Software Development.Read More
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1266Undisclosed10 - 49 employeesSan Francisco, CALocated in Reading, United Kingdom and San Francisco, California, CRMT Digitlal is a digital strategy company. The small agency was launched in 1999. Their team specializes in digital strategy, CRM consulting and SI, other IT consulting and SI, email marketing, and more.Read More
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1267$1,000+50 - 249 employeesSan Francisco, CABased in Mission, Kansas; Atlanta, Georgia; Dallas, Texas and Nashville, Tennessee, SoftDoes is a software development company. The firm offers Custom Software Development, UX/UI Design, Artificial Intelligence, IT managed services, and more and is midsize.The firm was launched in 2019.Read More
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FMY Orthodontics Ulala WIX ReclaimIndustries
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1268$5,000+50 - 249 employeesSan Francisco, CAFounded in 2015, Digis, a Fiverr company (NYSE: FVRR) is a custom software development company. The midsize team specializes in Custom Software Development, Web Development, and IT staff augmentation. The firm is based in London, England; New York, New York; București, Romania and L'viv, Ukraine.Read More
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Blablacar Hubspot PwC HumaIndustries
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1269Undisclosed10 - 49 employeesLos Angeles, CATeraVault Software is a Business Consulting company. Their team is based in Honolulu, Hawaii and Cebu City, Philippines and provides Business Consulting and BI & big data consulting & SI.Read More
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1270$10,000+50 - 249 employeesArcadia, CACustom software development company Solace Infotech Pvt. Ltd. Was established in 2010. They are located in Nashik, India; Pune, India and Arcadia, California and have a midsize team. Solace Infotech Pvt. Ltd. Provides Custom Software Development, Mobile App Development, E-Commerce Development, Artificial Intelligence, and more.Read More
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1271$5,000+10 - 49 employeesSan Jose, CACRM consulting and SI company Clone-Tech is in San Jose, California and Nairobi, Kenya. They focus on CRM consulting and SI and ERP consulting and SI and were founded in 2022.Read More
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1272$10,000+250 - 999 employeesLong Beach, CARead More
Queppelin is an IT solutions company based in Jaipur, India, and founded in 2010. They also have an office in Gurgaon, India. Their team of more than 200 employees specializes in AR/VR, mobile app, custom software, and web development for midmarket and small business companies. They mostly work with companies in the media, real estate, arts, and telecommunications industries.
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FacebookIndustries
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1273$25,000+50 - 249 employeesSan Francisco, CACloud Interactive is a software development company. The Taipei, Taiwan-based company focuses on Custom Software Development and AI Consulting.Read More
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1274$10,000+50 - 249 employeesMission Viejo, CARead More
Founded in 2013, AccelOne is an artificial intelligence firm. They are headquartered in Kirkland, Washington; Buenos Aires, Argentina and Mission Viejo, California and have a midsize team. The firm offers Artificial Intelligence, Generative AI, IT managed services, IT staff augmentation, and more.
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XapoIndustries
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1275Undisclosed50 - 249 employeesLos Angeles, CATech Holding, a data analytics company, was established in 2016. The company provides BI & big data consulting & SI and cloud consulting & SI, and is midsize.Read More
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1276$1,000+50 - 249 employeesSaratoga, CARead More
Software Developers, Inc. is a software development company that was founded in 2007. They are headquartered in Saratoga, Calif., with secondary locations in Melbourne, Australia, Mumbai, India, and London, England. The company has 94 employees and specializes in mobile app development, custom software development, and UX/UI design. They serve all levels of clientele in the business services and entertainment industries.
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PepsiIndustries
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1277Undisclosed50 - 249 employeesSan Francisco, CAIn San Francisco, California and Paris, France, TrustInSoft is a midsize data analytics company. Their services include BI & big data consulting & SI and Cybersecurity.Read More
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1278$25,000+50 - 249 employeesSan Francisco, CASoftware development firm Orangesoft was established in 2011. Their midsize team is located in Warszawa, Poland; Sheridan, Wisconsin and San Francisco, California. Their services include Custom Software Development, Mobile App Development, IoT development, and Web Development.Read More
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ASTI Philips OptiCounts Yukon Advanced Optics WorldwideIndustries
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1279Undisclosed50 - 249 employeesSan Francisco, CAUniform Systems, Inc. Is a CRM consulting and SI company. Based in San Francisco, California and Berlin, Germany, their team focuses on CRM consulting and SI and Custom Software Development.Read More
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1280$10,000+50 - 249 employeesSan Francisco, CAMANGOSOFT is a midsize e-commerce development company in Kyiv, Ukraine; San Francisco, California; Dover, Delaware and Warszawa, Poland. They provide E-Commerce Development, Mobile App Development, Custom Software Development, AI Consulting, and more and were established in 2016.Read More
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MeethoneybeeIndustries
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1281$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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1282$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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1283$5,000+250 - 999 employeesWoodland, CADigital Growth Labs is an IT staff augmentation company. They provide IT staff augmentation and Custom Software Development and were launched in 2024.Read More
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Jimmy Cooper John WilliamsIndustries
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1284$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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1285Undisclosed50 - 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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1286UndisclosedFreelancer 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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1287Undisclosed50 - 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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1288Undisclosed10 - 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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1289Undisclosed250 - 999 employeesLos Angeles, CANet Solutions is an AI firm. Their midsize team is based in Toronto, Canada; Chandigarh, India; London, England and New York, New York and provides Artificial Intelligence, E-Commerce Development, Enterprise App Modernization, Custom Software Development, and more. The firm was founded in 2000.Read More
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MicrosoftIndustries
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1290$50,000+50 - 249 employeesSan Francisco, CAInVerita is a L'viv, Ukraine-based data analytics company. They provide BI & big data consulting & SI, Artificial Intelligence, and Custom Software Development and were established in 2015.Read More
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Perforce, Methodics, Mediashout, Kroger Group, HILTI, Scrafts, Dilligend, OpenLogic, Perfecto, Government of SA, WGSN, numerous YCombinator-backed startupsIndustries
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