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
-
$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
Industries
-
$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
Industries
-
1$25,000+50 - 249 employeesLos Angeles, CASoftware development company Goji Labs was established in 2014. The midsize Los Angeles, California-based team focuses on Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more.Read More
Clients
World Health OrganizationIndustries
-
2$50,000+1,000 - 9,999 employeesSan Francisco, CABairesDev is a San Francisco, California-based software development company. The large team focuses on Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more. The agency was launched in 2009.Read More
Clients
GoogleIndustries
-
3$50,000+50 - 249 employeesNewport Beach, CASaritasa is a software development company headquartered in Newport Beach, California; New York, New York; Chicago, Illinois and Manhattan Beach, California. The midsize firm was founded in 2005. Their services include Custom Software Development, AR/VR development, Web Development, Mobile App Development, and more.Read More
Clients
Mitsubishi Makita ASCO Power Technologies WinegardIndustries
-
4$50,000+1,000 - 9,999 employeesSan Francisco, CARead More
Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.
Clients
Toptal clients include J.P. MorganIndustries
-
5$50,000+250 - 999 employeesIrvine, CAVincit is a midsize custom software development company. They provide Custom Software Development, Web Development, and Mobile App Development and were founded in 2007. The company is in Irvine, California and Scottsdale, Arizona.Read More
Clients
SplunkIndustries
-
6$25,000+10 - 49 employeesSolana Beach, CAAsymm is a custom software development firm launched in 2020. Their small team is in Solana Beach, California and Ciudad de México, Mexico and focuses on Custom Software Development and UX/UI Design.Read More
Industries
-
7$10,000+50 - 249 employeesSan Francisco, CARead More
AirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development.
Clients
HPIndustries
-
8$100,000+250 - 999 employeesLos Angeles, CAIn Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California, TheoremOne is a midsize software development company. They focus on Custom Software Development, IT strategy consulting, Business Consulting, IoT development, and more and were founded in 2007.Read More
Clients
AT&TIndustries
-
9$25,000+50 - 249 employeesSan Jose, CADiffco, a custom software development firm, is based in San Jose, California. They focus on Custom Software Development, Artificial Intelligence, IT staff augmentation, Web Development, and more and were launched in 2008.Read More
Clients
Mars Chemtreat Nokia InstreamaticIndustries
-
10$10,000+50 - 249 employeesSan Francisco, CACustom software development firm Azumo was established in 2016. The midsize team focuses on Custom Software Development, Artificial Intelligence, Mobile App Development, BI & big data consulting & SI, and more. The agency is located in San Francisco, California and Rosario, Argentina.Read More
Clients
Twitter Facebook Omnicom Discovery ChannelIndustries
-
11$10,000+50 - 249 employeesSacramento, CABluelight is a midsize custom software development firm based in Sacramento, California and Jardim Paulistano, Brazil. Launched in 2019, the team provides Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Industries
-
12$10,000+50 - 249 employeesSan Francisco, CARead More
Founded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development.
Clients
West ElmIndustries
-
13$10,000+50 - 249 employeesSan Francisco, CAScaleTech Solutions, a custom software development company, was launched in 2017. The agency focuses on Custom Software Development, IT managed services, Mobile App Development, E-Commerce Development, and more and has a midsize team. The agency is in San Francisco, California; Frankfurt am Main, Germany and Ahmedabad, India.Read More
Industries
-
14$25,000+10 - 49 employeesIrvine, CABaytech Consulting is a custom software development company based in Irvine, California. They focus on Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more and were launched in 2007.Read More
Clients
Petra Medical CollegeIndustries
-
15$5,000+50 - 249 employeesPasadena, CAEstablished in 1991, Art+Logic is a software development firm. The agency specializes in Custom Software Development, UX/UI Design, Web Development, Mobile App Development, and more and has a midsize team.Read More
Clients
Yamaha Kroger Trader Joes NASAIndustries
-
16$10,000+50 - 249 employeesBerkeley, CARead More
Founded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields.
Clients
StripeIndustries
-
17$50,000+50 - 249 employeesLos Angeles, CARead More
Sidebench is a healthcare product design and software engineering studio founded in 2012 in Los Angeles. With a mid-sized team and enterprise delivery capabilities, we partner with providers, payers and health-tech startups to build HIPAA-minded platforms, patient engagement, EHR interoperability and legacy modernization that reduce data silos and enable real-time clinical workflows.
Clients
Microsoft CorporationIndustries
-
18$50,000+50 - 249 employeesSan Francisco, CARead More
Cybercraft Inc. is a development agency headquartered in Lviv, Ukraine, that was established 2012. Their team of 19 offers custom software development, IT staff augmentation, web development, and more.
Clients
Palo Alto NetworksIndustries
-
19$50,000+50 - 249 employeesLos Angeles, CARead More
CitrusBits is a mobile app development company based in Los Angeles, CA and founded in 2005. The team of nearly 60 employees is passionate about creating mobile technology and responsive mobile content for all businesses.
Clients
Burger KingIndustries
-
20$5,000+50 - 249 employeesAltadena, CAEbizON Digital is an e-commerce development firm based in Altadena, California and Noida, India. The midsize firm was launched in 2007. Their services include E-Commerce Development, Custom Software Development, Mobile App Development, and Web Development.Read More
Industries
-
21$25,000+10 - 49 employeesVista, CAFounded in 2005, The Smyth Group is an UX design agency. The small team focuses on UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more. The agency is headquartered in Vista, California; New York, New York and Scottsdale, Arizona.Read More
Clients
Columbia SportswearIndustries
-
22$5,000+10 - 49 employeesEl Segundo, CARead More
Facet Interactive is a small Digital Strategy company launched in 2014. Their services include Digital Strategy, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more. The agency is based in El Segundo, California.
Clients
Element Solutions IncIndustries
-
23$1,000+10 - 49 employeesSan Diego, CAESEOspace is a San Diego, California-based web design agency. Established in 2018, the small team provides Web Design, Search Engine Optimization, Web Development, E-Commerce Development, and more.Read More
Industries
-
24$10,000+50 - 249 employeesSan Diego, CARead More
WebcentrIQ is a software development company in San Diego. Founded in 2017, they have about 10 employees that serve mostly midmarket and small-business clients in the healthcare, financial, and IT industries. Services include custom software development, mobile app development, and UI/UX design.
Clients
Campaign MonitorIndustries
-
25$25,000+10 - 49 employeesEl Segundo, CARead More
Founded in 2001, Thinklogic is a development firm. Their small team is based in El Segundo, Calif. They focus on custom software, web, and mobile app development.
Clients
Johnson & JohnsonIndustries
-
26$10,000+50 - 249 employeesSan Jose, CABeehive Software is a software development company. Founded in 2021, the midsize company is based in San Jose, California and Herzliya, Israel. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
Industries
-
27$10,000+10 - 49 employeesSacramento, CARead More
Capitol Tech Solutions is a web design agency. Their small team is in Sacramento, California and San Diego, California and specializes in Web Design, Custom Software Development, Web Development, and IoT development. The company was founded in 2004.
Clients
Ramos OilIndustries
-
28$50,000+250 - 999 employeesPalo Alto, CARead More
Turing is a small IT staff augmentation company. Established in 2018, the agency is in Palo Alto, California. Their services include IT staff augmentation.
Industries
-
29$100,000+10 - 49 employeesSan Francisco, CARead More
WLCM App Studio is a software development firm launched in 2011. The small San Francisco, California-based team specializes in custom software development, mobile app development, ux/ui design, application testing, and more.
Industries
-
30$10,000+10 - 49 employeesLos Angeles, CAENDERTECH is a web design agency founded in 2000. Their small team is based in Los Angeles, California. The firm specializes in Web Design, Custom Software Development, Web Development, and E-Commerce Development.Read More
Clients
DoyleIndustries
Featured providers
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed Software Developers in California
Check out a Software Developers in California with the most new reviews in the past 12 months.
Software Developers
California
- 11 12 new reviews
- 12 12 new reviews
- 13 10 new reviews
- 14 9 new reviews
- 15 9 new reviews
