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
-
$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
Industries
-
$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
Industries
-
1$50,000+50 - 249 employeesIrvine, CASoftware development firm Saritasa was established in 2005. In Irvine, California; New York, New York; Chicago, Illinois and Manhattan Beach, California, their midsize team provides Custom Software Development, AR/VR development, Artificial Intelligence, Mobile App Development, and more.Read More
Clients
Mitsubishi Makita ASCO Power Technologies WinegardIndustries
-
2$10,000+50 - 249 employeesSan Francisco, CAAirdev is a software development company established in 2015. The company provides Custom Software Development, Artificial Intelligence, Low/No Code Development, and Web Development and has a midsize team. The company is based in San Francisco, California.Read More
Clients
HPIndustries
-
3$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
-
4$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
-
5$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
-
6$50,000+250 - 999 employeesLos Angeles, CAGoji Labs is an application development company. They are headquartered in Los Angeles, California and New York, New York and have a midsize team. Their services include Mobile App Development, Custom Software Development, and Artificial Intelligence. The firm was launched in 2014.Read More
Clients
World Health OrganizationIndustries
-
7$10,000+50 - 249 employeesLos Angeles, CAAppMakers USA is a mobile application development company. Based in Los Angeles, California; New York, New York; San Diego, California and Santa Monica, California, their midsize team offers Mobile App Development, Custom Software Development, Artificial Intelligence, UX/UI Design, and more. The firm was launched in 2014.Read More
Clients
Los Angeles Apparel Walmart Number Hive NFLIndustries
-
8$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
-
9$10,000+250 - 999 employeesSacramento, CABluelight is a custom software development company. Launched in 2019, the agency is headquartered in Sacramento, California and Jardim Paulistano, Brazil. The midsize team focuses on Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Industries
-
10$50,000+1,000 - 9,999 employeesSan Francisco, CABairesDev is an AI company based in San Francisco, California; Buenos Aires, Argentina; Sao Paulo, Brazil and Ciudad de México, Mexico. Launched in 2009, the large team specializes in Artificial Intelligence, IT staff augmentation, Custom Software Development, DevOps Managed Services, and more.Read More
Clients
GoogleIndustries
-
11$25,000+50 - 249 employeesSan Jose, CADiffco AI, a custom software development company, is in San Jose, California. The midsize team provides Custom Software Development, Artificial Intelligence, Mobile App Development, AI Agents, and more and was established in 2008.Read More
Clients
Mars Chemtreat Nokia InstreamaticIndustries
-
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, CAAzumo, a midsize AI company, is located in San Francisco, California and Rosario, Argentina. Established in 2016, the team offers Artificial Intelligence, Custom Software Development, AI Agents, AI Consulting, and more.Read More
Clients
Twitter Facebook Omnicom Discovery ChannelIndustries
-
14$10,000+50 - 249 employeesSan Francisco, CAIn Alexandria, Virginia and San Francisco, California, JetRuby Agency is a midsize artificial intelligence company. They offer Artificial Intelligence, Custom Software Development, Mobile App Development, Web Development, and more and were launched in 2010.Read More
Clients
OSRAMIndustries
-
15$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
-
16$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
-
17$25,000+50 - 249 employeesMarina del Rey, CAAI Consulting company AE Studio is based in Marina del Rey, California. The midsize company was founded in 2016. Their services include AI Consulting, Artificial Intelligence, Custom Software Development, and Generative AI.Read More
Clients
SamsungIndustries
-
18$25,000+250 - 999 employeesSan Diego, CAEffectiveSoft is an AI Agents company. Established in 2003, the midsize agency is located in San Diego, California; San José, Costa Rica; Warszawa, Poland and San Francisco, California. Their services include AI Agents, Custom Software Development, AI Consulting, Artificial Intelligence, and more.Read More
Industries
-
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$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
-
21$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
-
22$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
-
23$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
-
24$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
-
25$25,000+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
-
26$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
-
27$5,000+10 - 49 employeesEl Segundo, CAFounded in 2014, Facet Interactive is a custom software development company. Their small team is headquartered in El Segundo, California. Their services include Custom Software Development, BI & big data consulting & SI, CRM consulting and SI, IT managed services, and more.Read More
Clients
Element Solutions IncIndustries
-
28$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
-
29$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
-
30$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
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 8 new reviews
- 12 7 new reviews
- 13 7 new reviews
- 14 6 new reviews
- 15 6 new reviews
