Top 100 Mobile App Developers in California
The Best of December 2025Looking for a top mobile app development company in California?
Building a mobile app is expensive. In fact, it can cost $10,000 to $150,000, unless you want an out-of-the-box solution with a DIY app builder. So, choosing the right app developer is important because it can save you time and money and result in an app that makes your business stand out.
As you begin the process of hiring an app development company, remember to define the type of app you want before starting conversations with developers. How complex your app idea is will determine your budget and the skill level you need in an app developer. Then, once conversations begin, ask for portfolio items, reviews, and references. Be sure to bring up timeline, too, so you align on expectations.
Overall, with about 90% of time on mobile spent in apps, investing in a mobile app for your business may help attract customers and get your brand in front of more people.
To assist you in your search for a partner, we’ve compiled this list of the top mobile app developers in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Mobile App Development Companies
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1141Undisclosed50 - 249 employeesWalnut Creek, CAASD Global-Public Sector is a software development firm in Walnut Creek, California. They specialize in Custom Software Development and ERP consulting and SI.Read More
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1142$50,000+50 - 249 employeesLos Angeles, CALocated in Montreal, Canada and Quebec City, Canada, Tink is a midsize user experience agency. The team provides UX/UI Design and Mobile App Development.Read More
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Via RailIndustries
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1143Undisclosed10 - 49 employeesSan Francisco, CARivi is an user experience design agency founded in 2017. Their team provides UX/UI Design and Product Design.Read More
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1144$5,000+10 - 49 employeesDallas, TXRead More
Octal Digital is a web design company based in Houston. Founded in 2008, their team of two employees provides e-commerce development, mobile app design, and web design services.
Clients
Coca ColaIndustries
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1145$50,000+50 - 249 employeesOakland, CACustom software development company Blue Trail Software was founded in 2013. Headquartered in Oakland, California; Tepatitlán de Morelos, Mexico; València, Spain and Resistencia, Argentina, their midsize team specializes in Custom Software Development, Building Security Services, Application Testing, Mobile App Development, and more.Read More
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1146Undisclosed50 - 249 employeesPleasanton, CARiverstone Infotech is a software development firm. The agency is based in Chennai, India and Pleasanton, California. Their services include Custom Software Development and Web Design.Read More
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1147Undisclosed250 - 999 employeesSan Francisco, CAMidsize Application Testing company Testing Hero, is headquartered in San Francisco, California and Hanoi, Vietnam. The team specializes in Application Testing and Web Development.Read More
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1148Undisclosed250 - 999 employeesRichmond, CAHartmann Studios is a branding agency launched in 1984. Their services include Branding and Event Marketing.Read More
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1149$10,000+50 - 249 employeesPalo Alto, CADatamart is a midsize Palo Alto, California-based custom software development company. Their services include Custom Software Development and Web Development.Read More
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1150Undisclosed10 - 49 employeesSan Juan Capistrano, CATerse Software is a Blockchain company. Established in 2017, the team offers Blockchain and cloud consulting & SI.Read More
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1151Undisclosed10 - 49 employeesSan Jose, CAElevate Digital Services, a web development firm, is located in Dubai, United Arab Emirates and San Jose, California. Their services include Web Development and Mobile App Development.Read More
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1152$1,000+50 - 249 employeesLos Angeles, CAInfowebusa Technologies is a SEO agency in Los Angeles, California and Noida, India. The team provides Search Engine Optimization and Pay Per Click.Read More
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1153Undisclosed10 - 49 employeesSan Mateo, CALaunched in 2018, ZealoTech People is an user experience company. Headquartered in San Mateo, California and Nashik, India, the team specializes in UX/UI Design and Custom Software Development.Read More
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1154Undisclosed50 - 249 employeesSanta Clara, CASATech Digital is a software development company. The Santa Clara, California-based team focuses on Custom Software Development and Enterprise App Modernization.Read More
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1155$5,000+10,000+ employeesSan Francisco, CAGlobant is a large web development firm. They offer Web Development and Custom Software Development and were founded in 2003.Read More
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1156$5,000+2 - 9 employeesEl Dorado Hills, CAFirethorne Design, an e-commerce development firm, was established in 2009. The team offers E-Commerce Development and Mobile App Development and is in El Dorado Hills, California.Read More
Clients
Western Slope District 22 -
1157$5,000+2 - 9 employeesSan Jose, CAWeb design company Rasteroids Design was launched in 2000. The team offers Web Design and Custom Software Development and is headquartered in San Jose, California.Read More
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1158Undisclosed2 - 9 employeesDavis, CAHeadquartered in Davis, California, EmtLogiciel is a small user experience design company. Their services include UX/UI Design and Branding.Read More
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1159Undisclosed2 - 9 employeesSanta Clarita, CASanta Clarita Web & IT is a mobile app development company launched in 2003. The small team provides Mobile App Development and Search Engine Optimization.Read More
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1160Undisclosed2 - 9 employeesLaguna Hills, CAM.O.V.E. UP Marketing Group is an application development company. Located in Laguna Hills, California, the firm focuses on Mobile App Development and Social Media Marketing.Read More
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1161$5,000+50 - 249 employeesSan Francisco, CAGITS Indonesia is a midsize cloud consulting & SI company. Based in Bandung, Indonesia, the firm was founded in 2010. Their team focuses on cloud consulting & SI, mobile app development, custom software development, and web development.Read More
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1162$10,000+50 - 249 employeesTracy, CATravancore Analytics is a cloud consulting & SI company. They offer cloud consulting & SI, Mobile App Development, AR/VR development, IoT development, and more and were established in 2007. Their midsize team is Tracy, California-based.Read More
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1163$10,000+50 - 249 employeesLos Angeles, CAPingle Studio is a mobile app development firm established in 2007. Their services include Mobile App Development and Custom Software Development.Read More
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1164Undisclosed10 - 49 employeesVentura, CALENCOP TECHNOLOGIES PRIVATE LIMITED is a web development company based in Kolkata, India and Ventura, California. The team offers Web Development and Digital Strategy.Read More
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1165$5,000+50 - 249 employeesMiami, FLNuvem Group is a cloud consulting & SI company founded in 2015. Headquartered in Miami, Florida and London, England, the team focuses on cloud consulting & SI and Custom Software Development.Read More
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1166$25,000+250 - 999 employeesNewark, CAArgusoft is a software development firm. They offer Custom Software Development, Mobile App Development, Web Development, Enterprise App Modernization, and more and were established in 2001. Their midsize team is based in Newark, California and Gandhinagar, India.Read More
Clients
World Health Organization (WHO)Industries
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1167$1,000+250 - 999 employeesMilpitas, CALaunched in 2016, Appzlogic Inc is an IT staff augmentation company. The midsize Farmers Branch, Texas-based team offers IT staff augmentation, Web Development, Mobile App Development, Application Testing, and more.Read More
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Harvard Business SchoolIndustries
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1168$5,000+10 - 49 employeesGlendora, CAE-commerce development company Apex Global Solutions is based in Glendora, California. The team provides E-Commerce Development and Graphic Design.Read More
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1169$10,000+10 - 49 employeesFremont, CAFounded in 2012, The Awesome Game Studio is an AR/VR development company. Their team offers AR/VR development and Custom Software Development.Read More
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1170Undisclosed10 - 49 employeesLos Angeles, CAGainko Design is a web design company. They provide Web Design and Web Development and were launched in 2012.Read More
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