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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211$10,000+2 - 9 employeesBrea, CARead More
Founded in 2019, CODOTDEV is a development company based in Brea, Calif. They work with small and midmarket businesses in the business services, education, financial services, and hospitality industries.
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GoogleIndustries
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212$25,000+10 - 49 employeesSan Diego, CARead More
Frogmouth Digital is a software development firm that has been offering web development, mobile app development, and custom software development to their clients since 2009. Their 50 employees are based out of La Jolla, Calif.
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UFCIndustries
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213$10,000+50 - 249 employeesIrvine, CARead More
Xavor Corporation is a custom software development firm. Founded in 1995, the team offers custom software development, cloud consulting & SI, and web development. Their midsize agency is in Irvine, California and Lahore, Pakistan.
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214$25,000+2 - 9 employeesDowney, CARead More
Vivus is a full-service custom web development and internet marketing firm based in Downey, Calif. The firm, founded in 2018, has a team of more than five that provides, among others, web design, web development, and mobile app development services to small and larger-sized companies and institutions in the business services, education, financial services, and many other industries.
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TalaIndustries
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215$5,000+10 - 49 employeesLos Angeles, CAPircle is a software development firm. They are in Los Angeles, California and have a small team that focuses on Custom Software Development, Web Development, Mobile App Development, and Enterprise App Modernization. The firm was founded in 2012.Read More
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216$1,000+10 - 49 employeesSan Diego, CARead More
SiteCraft Inc. Is a small software development company. They specialize in custom software development, web development, ux/ui design, e-commerce development, and more and were launched in 2016. The company is headquartered in , Ukraine.
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217$10,000+10 - 49 employeesNewport Beach, CAElevate is a custom software development firm founded in 2017. The small Newport Beach, California-based team provides Custom Software Development, cloud consulting & SI, Artificial Intelligence, IT staff augmentation, and more.Read More
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218$1,000+2 - 9 employeesCorona, CALocated in Corona, California, WellomyTech is an IT managed services company. They offer IT managed services, Artificial Intelligence, custom software development, enterprise app modernization, and more and were established in 2021.Read More
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219$1,000+10 - 49 employeesSan Bernardino, CARead More
WordSphere WordPress Development Agency is a software development firm established in 2007. Their small team is headquartered in San Bernardino, California. The company focuses on custom software development, IT managed services, web design, wearable app development, and more.
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220$10,000+10 - 49 employeesLos Angeles, CARead More
Cloudsa, a user experience agency, is in Los Angeles, California. They focus on ux/ui design, web development, mobile app development, web design, and more and were founded in 2018.
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221$1,000+10 - 49 employeesPalo Alto, CAMinimalistech is a big data company launched in 2010. Their team focuses on BI & big data consulting & SI and Custom Software Development.Read More
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Caffeine.TvIndustries
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222$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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223$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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224$5,000+50 - 249 employeesTorrance, CAHangingPanda PVT LTD, an app development firm, is headquartered in Torrance, California and Noida, India. The midsize team specializes in Mobile App Development, Web Development, Artificial Intelligence, Custom Software Development, and more and was launched in 2021.Read More
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225Undisclosed50 - 249 employeesRedondo Beach, CAIn Redondo Beach, California; Hermosa Beach, California; New York, New York and Palo Alto, California, Silicon Prime AI is a midsize AI Agents company. They specialize in AI Agents, AI Consulting, Custom Software Development, Artificial Intelligence, and more and were established in 2011.Read More
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226$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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227$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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228$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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229$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. -
230$10,000+10 - 49 employeesEmeryville, CADreamLabs is a small software development company. They focus on custom software development, web development, and mobile app development and were founded in 2022. The agency is headquartered in Emeryville, California.Read More
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Nurture GlowCode SageEQ Nowhere Collective -
231$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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232$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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233Undisclosed2 - 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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234$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 -
235$5,000+10 - 49 employeesIrvine, CARead More
Horizon Labs is a small Irvine, California-based web development company. They focus on Web Development, Custom Software Development, Artificial Intelligence, IT staff augmentation, and more and were founded in 2019.
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YuraHealth.com Kidsy.co Rarewaters.com Flairlabs.ai (YC S22)Industries
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236$25,000+10 - 49 employeesSan Diego, CAEstablished in 2019, Backpack Works is a small custom software development firm headquartered in San Diego, California. Their services include Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more.Read More
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237$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 -
238$1,000+2 - 9 employeesDublin, CACustom software development company Yuwix Technologies is in Dublin, California. The company focuses on Custom Software Development, Web Development, Mobile App Development, and Web Design and is small.The company was launched in 2022.Read More
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239$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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240$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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