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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211$10,000+50 - 249 employeesLos Altos, CAEstablished in 2018, Metricoid Technology Solutions is an artificial intelligence company. The midsize team focuses on Artificial Intelligence, AI Agents, Generative AI, AI Consulting, and more. The firm is based in Walnut Creek, California; San Francisco, California; Miami, Florida and Nilje Gaon, India.Read More
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EUTradePointIndustries
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212$10,000+2 - 9 employeesSanta Cruz, CARead More
Cloud Brigade is a small software development company. In Santa Cruz, California, the firm was founded in 2005. Their team specializes in custom software development, Artificial Intelligence, IT managed services, web development, and more.
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213$25,000+50 - 249 employeesMenlo Park, CAIn Menlo Park, California and Coimbatore, India, Techjays is a midsize cloud consulting & SI company. Established in 2020, the team provides cloud consulting & SI, Custom Software Development, Web Development, Mobile App Development, and more.Read More
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214$5,000+10 - 49 employeesCitrus Heights, CARead More
Yotalabs is a technology firm headquartered in Sacramento, Calif., with a satellite office in Ukraine. They have about 11 employees that serve small and midmarket businesses. Services include custom software development, IT staff augmentation, web development, and mobile app development services.
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TeslaIndustries
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215$10,000+10 - 49 employeesSan Diego, CARead More
Wired Avenue is a digital agency in San Diego. Founded in 2002, they have fewer than 5 employees that serve clients in a wide variety of industries. Services include web development, mobile app development, and custom software development.
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Qualcomm -
216$10,000+10 - 49 employeesIrvine, CARead More
Custom Software Solutions, Inc is a software house based in Irvine, Calif., and founded in 2005. With no more than 50 experts, they provide SEO, PPC, and custom software development solutions to clients ranging from startups to large businesses.
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HID GlobalIndustries
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217$5,000+2 - 9 employeesVentura, CARead More
The Final Code is an Internet marketing firm based in Ventura, Calif. Since 1996, their current, small team of 5 has specialized in digital strategy, business consulting, web development, and more.
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Citibank. -
218$50,000+10 - 49 employeesSan Francisco, CARead More
Go Nimbly is a technical consulting firm founded in 2013. Headquartered in San Francisco, Calif., Go Nimbly's approximately 20 employees specialize in CRM consulting and SI, custom software development, and UX/UI design. The client appreciated Go Nimbly's comprehensive documentation, which enabled them to track the progress of integration and development up until deployment.
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Twilio -
219$25,000+50 - 249 employeesSan Francisco, CAIntuitech, a Digital Strategy company, is headquartered in Budapest, Hungary and San Francisco, California. The team provides Digital Strategy and Custom Software Development.Read More
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TelenorIndustries
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220Undisclosed2 - 9 employeesFairfield, CARead More
Amazing Solutions, Inc. is an accounting software reseller based in Fairfield, Calif. Their team of no more than 10 has offered application management and support, business consulting, and custom software development solutions since their founding in 1981.
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Athens Baking CompanyIndustries
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221$10,000+50 - 249 employeesMountain View, CARead More
Sysvine Technologies is a software engineering service provider founded in 2000. Based in Chennai, India, the team of 100+ specializes in custom software development, cloud consulting & SI, and ERP consulting & SI.
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Peloton Blockchain -
222$50,000+10 - 49 employeesSan Diego, CARead More
Treeline Interactive is a software development company based in San Diego. Since being founded in 2004, it has grown to a team of about 54 that does IoT development, custom software development, mobile app development, and web development. Its clients are mostly midmarket and small businesses.
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Landmark Aviation -
223$5,000+2 - 9 employeesLaguna Hills, CAHeadquartered in Laguna Hills, California, Modern Labyrinth is a SEO services firm. The small team specializes in Search Engine Optimization, Web Design, Custom Software Development, Web Development, and more and was launched in 2015.Read More
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224$5,000+10 - 49 employeesGlendale, CARoyal Digital Agency is a small branding agency located in Glendale, California. Established in 2016, the team specializes in branding, digital strategy, social media marketing, content marketing, and more.Read More
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225$100,000+50 - 249 employeesIrvine, CAEcognition Labs is an artificial intelligence company. The midsize Irvine, California-based agency was founded in 2017. Their services include Artificial Intelligence, Custom Software Development, IT staff augmentation, AI Consulting, and more.Read More
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ColliersIndustries
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226$10,000+10 - 49 employeesAnaheim, CARead More
Based in Anaheim, California, Reinforce Global is a custom software development company. They provide custom software development, application management & support, mobile app development, and web development and were launched in 2019.
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227$25,000+10 - 49 employeesLos Angeles, CARead More
Tec 4 Digital, LLC. Is a small custom software development company. They provide custom software development, mobile app development, AR/VR development, and Artificial Intelligence and were established in 2017.
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228$5,000+2 - 9 employeesSan Diego, CARead More
Software development company EyeUniversal is in San Diego, California. The small firm was established in 2005. Their services include custom software development, mobile app development, search engine optimization, web design, and more.
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229$10,000+10 - 49 employeesSan Francisco, CARead More
Streamline social, a software development firm, is headquartered in San Francisco, California; Buffalo, New York and Montevideo, Uruguay. Founded in 2009, the small team specializes in custom software development, mobile app development, ux/ui design, product design, and more.
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230$25,000+10 - 49 employeesSan Diego, CARead More
BL3NDlabs is a software and strategy design firm based in San Diego. They were founded in 2015, and have a team of 13 employees. They specialize in custom software development, mobile app development, and product design.
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San Diego Gas & Electric -
231$10,000+50 - 249 employeesSan Mateo, CARead More
Located in San Mateo, Calif., Ribbonfalls is a full stack development house boasting a team of at least 50 employees. The company was started in 2019 and offers mobile app, web, and custom software development as well as UX/UI design services. Their clients range from small to mid-sized businesses.
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LamdenIndustries
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232$1,000+10 - 49 employeesSanta Clarita, CAIT staff augmentation company IT Tech Hub LLC was established in 2016. The firm specializes in IT staff augmentation, custom software development, web development, mobile app development, and more and has a small team.Read More
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233$1,000+10 - 49 employeesLos Angeles, CANabali Development is a small custom software development company. Founded in 2022, the firm is located in Los Angeles, California. Their team offers Custom Software Development, Web Development, Mobile App Development, Digital Strategy, and more.Read More
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234$1,000+10 - 49 employeesSan Francisco, CACitrine Groupe LLC is a small SEO company based in San Francisco, California. Established in 2012, the team provides Search Engine Optimization, Pay Per Click, Custom Software Development, Web Development, and more.Read More
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235$5,000+10 - 49 employeesSan Diego, CAHyperGrowth is a branding firm. Located in San Diego, California, their small team specializes in Branding, Custom Software Development, Artificial Intelligence, Performance Marketing, and more. The firm was launched in 2024.Read More
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236$10,000+10 - 49 employeesIrvine, CADevio Tech is a website development firm founded in 2018. Their services include Web Development and Mobile App Development.Read More
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237$50,000+10 - 49 employeesSan Diego, CARead More
Odyssey Computing, Inc. Is a web design company headquartered in San Diego, California. The small agency was founded in 1996. Their services include web design, ux/ui design, custom software development, web development, and more.
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238$25,000+2 - 9 employeesSan Diego, CABackpack Works is a San Diego, California-based web design agency. The small team specializes in Web Design, UX/UI Design, Custom Software Development, Web Development, and more. The agency was founded in 2019.Read More
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239Undisclosed2 - 9 employeesSan Clemente, CARead More
Funnel9 is a small other digital marketing company. Founded in 2020, the agency is headquartered in San Clemente, California. Their team provides other digital marketing, digital strategy, social media marketing, content marketing, and more.
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240$100,000+50 - 249 employeesRedwood City, CATrueNorth, a custom software development firm, was launched in 2016. Headquartered in Redwood City, California, the team offers Custom Software Development and UX/UI Design.Read More
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