Top 100 Software Development Companies in California
The Best of December 2025Looking 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 is a software development firm. Their small team is located in Irvine, California. The firm specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more.Read More
Industries
-
$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
Industries
-
$10,000+10 - 49 employeesJohannesburg, South AfricaRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
Industries
-
211$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.
Clients
Qualcomm -
212$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.
Clients
HID GlobalIndustries
-
213$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.
Clients
Citibank. -
214$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.
Clients
Twilio -
215$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
Clients
TelenorIndustries
-
216Undisclosed2 - 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.
Clients
Athens Baking CompanyIndustries
-
217$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.
Clients
Peloton Blockchain -
218$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.
Clients
Landmark Aviation -
219$5,000+10 - 49 employeesIrvine, CAHorizon 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.Read More
Clients
YuraHealth.com Kidsy.co Rarewaters.com Flairlabs.ai (YC S22)Industries
-
220$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
Industries
-
221$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
Industries
-
222$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
Clients
ColliersIndustries
-
223$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.
Industries
-
224$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.
Industries
-
225$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.
-
226$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.
Industries
-
227$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.
Clients
San Diego Gas & Electric -
228$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.
Clients
LamdenIndustries
-
229$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
-
230$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
Industries
-
231$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
-
232$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
Industries
-
233$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
Industries
-
234$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
Industries
-
235$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.
-
236Undisclosed2 - 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.
Industries
-
237$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
Industries
-
238$100,000+2 - 9 employeesSacramento, CAPragmint is a big data company. Located in Sacramento, California, their small team offers BI & big data consulting & SI, Custom Software Development, Enterprise App Modernization, IT strategy consulting, and more. The firm was founded in 2021.Read More
Industries
-
239Undisclosed2 - 9 employeesEncinitas, CARead More
Agency73 is a development shop based in Encinitas, Calif. Founded in 2017, Agency73's team of about 10 employees specializes in providing custom software development, web development, and e-commerce development services for mid-market and enterprise businesses in the healthcare, advertising and IT industries.
Clients
IntuitIndustries
-
240$5,000+10 - 49 employeesLos Angeles, CADitans group is a Los Angeles, California-based business consulting company. The small team offers business consulting, digital strategy, search engine optimization, pay per click, and more and was founded in 2020.Read More
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 11 new reviews
- 12 11 new reviews
- 13 9 new reviews
- 14 9 new reviews
- 15 9 new reviews
