Top 100 Mobile App Developers in California
The Best of October 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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1021$25,000+10 - 49 employeesLos Angeles, CAVartheta, a web development firm, is in New York, New York and Houston, Texas. The team provides Web Development and Digital Strategy.Read More
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1022$10,000+10 - 49 employeesLos Angeles, CANew Media Agency, a web design company, was established in 2008. They specializes in Web Design and Branding.Read More
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1023$5,000+10 - 49 employeesPalo Alto, CARead More
Tessafold LLC is an application development company located in Palo Alto, California; Berlin, Germany; Jeddah, Saudi Arabia and Ciudad de México, Mexico. Founded in 2017, the small team specializes in Mobile App Development, Artificial Intelligence, UX/UI Design, cloud consulting & SI, and more.
Industries
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1024$25,000+250 - 999 employeesManhattan Beach, CADistillery, a custom software development firm, was established in 2012. The agency specializes in Custom Software Development, Web Development, Mobile App Development, IT staff augmentation, and more and has a midsize team. The agency is based in Manhattan Beach, California; Córdoba, Argentina; Ciudad de México, Mexico and C1429BNS, Argentina.Read More
Clients
ebayIndustries
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1025$10,000+10 - 49 employeesSan Diego, CAIn San Diego, California, MJD Interactive is a web design agency. They offer Web Design and UX/UI Design.Read More
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1026$1,000+50 - 249 employeesSan Francisco, CACrestline Digital, a branding firm, was launched in 2018. Headquartered in Sheridan, Wyoming; Denver, Colorado and San Francisco, California, their midsize team offers Branding, Advertising, Social Media Marketing, Search Engine Optimization, and more.Read More
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1027$5,000+2 - 9 employeesLos Angeles, CASuperNice is a web design agency. The team provides Web Design and UX/UI Design and is headquartered in Los Angeles, California.Read More
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1028$1,000+2 - 9 employeesSan Ramon, CAScale Modern Business Solutions LLC is a software development company. Their team is based in San Ramon, California. The firm specializes in Custom Software Development and Web Development.Read More
Industries
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1029$25,000+Freelancer employeesLos Angeles, CALocated in Los Angeles, California, Samuel Nee Web Development and Consulting is a website development firm. They specialize in Web Development and Mobile App Development and were founded in 1998.Read More
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1030$1,000+10 - 49 employeesSoquel, CABees2biz is a Product Design company. Their small team of employees is located in Soquel, California and Bogotá, Colombia. Their team offers Product Design and Blockchain.Read More
Industries
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1031Undisclosed250 - 999 employeesSan Francisco, CAMobiquity Inc. Is a midsize IoT development company. They specialize in IoT development and UX/UI Design and were founded in 2011.Read More
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1032$1,000+10 - 49 employeesLos Angeles, CAIDOWS Apex is an e-commerce development firm. The Los Angeles, California-based company was established in 2020. Their team offers E-Commerce Development and Mobile App Development.Read More
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1033Undisclosed10 - 49 employeesPalo Alto, CAApp development company Mobile Roadie was founded in 2009. The small team provides Mobile App Development and Mobile & App Marketing.Read More
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1034$100,000+250 - 999 employeesPalo Alto, CAMatellio is a mobile app development firm launched in 2014. The midsize Palo Alto, California-based team focuses on Mobile App Development, IT staff augmentation, Web Development, IoT development, and more.Read More
Clients
StartupsIndustries
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1035$10,000+2 - 9 employeesSan Diego, CASoftware development company Notch8 is based in San Diego, California. Launched in 2007, the team offers Custom Software Development and Web Development.Read More
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1036Undisclosed2 - 9 employeesSanta Rosa, CANorth Bay Networking is a small Santa Rosa, California-based application development company. Their services include Mobile App Development and Search Engine Optimization.Read More
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1037Undisclosed2 - 9 employeesSan Jose, CAEzoominc: Mobile App Studio is a small app development company headquartered in San Jose, California. The team focuses on Mobile App Development and Market Research.Read More
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1038Undisclosed2 - 9 employeesWalnut Creek, CAMiller Media - Walnut Creek is a custom software development firm. Founded in 2012, the firm is in Walnut Creek, California. Their services include Custom Software Development and Web Development.Read More
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1039Undisclosed2 - 9 employeesBurlingame, CAData analytics company and app development firm Transiris Corporation was founded in 2012. The team offers BI & big data consulting & SI and Mobile App Development.Read More
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1040Undisclosed2 - 9 employeesSalinas, CAAB Computer, an IoT development and mobile application development company, offer IoT development and Mobile App Development. They were founded in 1993.Read More
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1041$5,000+10 - 49 employeesFresno, CAHeadquartered in Fresno, California, Webcity Press is a Content Marketing company. Established in 1995, the team specializes in Content Marketing and Search Engine Optimization.Read More
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1042Undisclosed250 - 999 employeesSan Jose, CADigile, a Digital Strategy company, was established in 2015. The team focuses on Digital Strategy and Conversion Optimization and is headquartered in Bengaluru, India and Hyderabad, India.Read More
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1043Undisclosed250 - 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.
Clients
VontoIndustries
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1044UndisclosedFreelancer employeesPasadena, CACustom software development company App Indulge LLC was established in 2012. Headquartered in Pasadena, California, the team focuses on Custom Software Development and Mobile App Development.Read More
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1045$5,000+50 - 249 employeesLos Angeles, CATechcronus Business Solutions is an Ahmedabad, India-based CRM consulting and SI company. They focus on CRM consulting and SI, ERP consulting and SI, IT staff augmentation, Mobile App Development, and more and were founded in 2010.Read More
Clients
SporsTech Startup in LAIndustries
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1046$5,000+2 - 9 employeesFresno, CACloud1Marketing is a Digital Strategy company founded in 2012. Located in Fresno, California, the team offers Digital Strategy and Social Media Marketing.Read More
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1047$1,000+Freelancer employeesBurbank, CAWebsite development firm Felix Digital Solutions is based in Burbank, California. Launched in 2024, the team offers Web Development and Mobile App Development.Read More
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1048$1,000+2 - 9 employeesRiverside, CAOMNIX HUB LLC, a website development firm, was founded in 2025. In Riverside, California, the team offers Web Development and E-Commerce Development.Read More
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1049$25,000+50 - 249 employeesSan Francisco, CACustom software development company MindK was established in 2009. The agency provides Custom Software Development, Mobile App Development, AI Agents, Enterprise App Modernization, and more and has a midsize team. The agency is headquartered in San Francisco, California; Prague, Czech Republic and Kyiv, Ukraine.Read More
Clients
AdidasIndustries
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1050$10,000+50 - 249 employeesSunnyvale, CARailsFactory is a midsize software development company. Founded in 2006, the team specializes in Custom Software Development and IT staff augmentation.Read More
Industries
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