Top 100 Mobile App Developers in California
The Best of March 2026Looking 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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1201Undisclosed250 - 999 employeesSan Francisco, CARead More
Projekt202 is a software development and marketing company based in Addison, Texas. They were founded in 2003 and have a team of 285 employees. They specialize in custom software development, UX/UI design, and mobile app development to improve their client’s customer and employee experiences.
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VontoIndustries
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1202$25,000+1,000 - 9,999 employeesLos Angeles, CASimform is a cloud consulting & SI company. Their large team is based in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and focuses on cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more. The firm was founded in 2010.Read More
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RedbullIndustries
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1203$10,000+250 - 999 employeesSan Francisco, CAGeekyAnts is a Bengaluru, India-based custom software development firm. The midsize team provides Custom Software Development, Mobile App Development, Web Development, Artificial Intelligence, and more. The firm was launched in 2006.Read More
Clients
Siveco Romania Olive Garden Darden KhataBookIndustries
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1204$1,000+50 - 249 employeesSan Francisco, CAEstablished in 2023, Premium Designs Studio is a web design agency. The team provides Web Design and Logo and is based in London, England and San Francisco, California.Read More
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1205$25,000+50 - 249 employeesAgoura Hills, CATechAhead is a mobile application development company. Their midsize team is based in Agoura Hills, California; Noida, India and Dubai, United Arab Emirates. The agency offers Mobile App Development, Artificial Intelligence, Web Development, and Custom Software Development.Read More
Clients
AXA University of Toronto Audi American ExpressIndustries
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1206Undisclosed250 - 999 employeesSan Diego, CAArtificial intelligence company Integrant, Inc. Is located in San Diego, California. They focus on Artificial Intelligence and Application Testing and were established in 1992.Read More
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1207$10,000+50 - 249 employeesSan Francisco, CAFusion Informatics Limited is an artificial intelligence company. The midsize team is located in Ahmedabad, India; Bengaluru, India; San Francisco, California and Dubai, United Arab Emirates. Their services include Artificial Intelligence, Custom Software Development, Web Development, Mobile App Development, and more.Read More
Clients
BoschIndustries
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1208Undisclosed50 - 249 employeesSan Francisco, CATivix, Inc. Is a midsize web development company located in San Francisco, California and PERYDOT, Poland. Their services include Web Development and Mobile App Development.Read More
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1209$25,000+50 - 249 employeesSanta Monica, CAHeadquartered in Santa Monica, California; Zaporizhzhia, Ukraine and Kyiv, Ukraine, IT-Dimension Inc. Is a web development company. The midsize team offers Web Development, Mobile App Development, UX/UI Design, Application Testing, and more and was founded in 2007.Read More
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1210$5,000+2 - 9 employeesSan Francisco, CADon Web Solutions, an e-commerce development firm, is headquartered in San Francisco, California. They provide E-Commerce Development and Graphic Design.Read More
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1211$5,000+2 - 9 employeesSan Diego, CASmall Digital Strategy company Sma2z, is headquartered in San Diego, California. Their services include Digital Strategy and Graphic Design.Read More
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1212$10,000+2 - 9 employeesLos Angeles, CAStrada WorldWide is a Los Angeles, California-based AR/VR development company. The team focuses on AR/VR development and Mobile App Development.Read More
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1213$5,000+2 - 9 employeesPasadena, CAFounded in 1998, Arroyo Design, a small web development company, is located in Pasadena, California. Their services include Web Development and Web Design.Read More
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1214$5,000+2 - 9 employeesSanta Rosa, CAGraphicSmith is a SEO company based in Santa Rosa, California. Founded in 1983, the team offers Search Engine Optimization and Web Design.Read More
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1215Undisclosed2 - 9 employeesSan Francisco, CASmall web development company Intechprof LLC, is in San Francisco, California. The team specializes in Web Development and Graphic Design.Read More
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1216Undisclosed2 - 9 employeesSan Francisco, CAMouth-Wash.co is a software development firm. Their small team is based in San Francisco, California. Their team provides Custom Software Development and Mobile App Development.Read More
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1217Undisclosed2 - 9 employeesLos Angeles, CASmall UX design agency iDCG LLC, is located in Los Angeles, California. Their services include UX/UI Design and Graphic Design.Read More
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1218Undisclosed2 - 9 employeesLong Beach, CAThe Web Handlers is a web development firm. In Long Beach, California, the team offers Web Development and Branding.Read More
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1219Undisclosed2 - 9 employeesLake Forest, CAIngenious info web, an app development company, was launched in 2015. The small team specializes in Mobile App Development and Search Engine Optimization.Read More
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1220Undisclosed2 - 9 employeesHayward, CASaheltech is a Business Consulting company founded in 2002. The team offers Business Consulting and Mobile App Development.Read More
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1221Undisclosed2 - 9 employeesStockton, CAWhimsicode is a branding company. The small Stockton, California-based team provides Branding and Mobile App Development. The company was launched in 2016.Read More
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1222Undisclosed2 - 9 employeesLos Angeles, CABranding firm WEBMOO is based in Los Angeles, California. They provide Branding and E-Commerce Development and were launched in 2012.Read More
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1223Undisclosed2 - 9 employeesNorwalk, CAOryxenter LLC is a Digital Strategy company. Their small team is in Norwalk, California. Their team specializes in Digital Strategy and Graphic Design.Read More
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1224Undisclosed2 - 9 employeesOakland, CALocated in Oakland, California, Palo Colorado Software, LLC is a small custom software development company. Their services include Custom Software Development and UX/UI Design.Read More
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1225Undisclosed2 - 9 employeesIrvine, CAMethod Data Science is a small business intelligence company. They specialize in BI & big data consulting & SI and Web Development and were launched in 2018.Read More
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1226Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2021, One River Consulting Inc, a small software development company, is headquartered in Los Angeles, California. Their team offers Custom Software Development and Web Development.Read More
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1227Undisclosed2 - 9 employeesSunnyvale, CAEstablished in 2006, AppLite.com is a SEO company. The agency specializes in Search Engine Optimization and BI & big data consulting & SI, and is small.Read More
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1228Undisclosed2 - 9 employeesTorrance, CABlockchain Studioz is a small Blockchain company. Established in 2015, the team provides Blockchain and Blockchain Marketing.Read More
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1229Undisclosed2 - 9 employeesSacramento, CAInterstate PR is a branding firm. Located in Sacramento, California, the agency was established in 2014. Their team specializes in Branding and Public Relations.Read More
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1230$1,000+50 - 249 employeesHuntington Beach, CAAmbsan Technologies is a Karachi, Pakistan-based custom software development company. The team provides Custom Software Development and Mobile App Development.Read More
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