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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1051Undisclosed250 - 999 employeesSanta Monica, CABuild Offshore Team, a software development firm, was established in 2012. The team provides Custom Software Development and Web Development.Read More
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1052$10,000+10 - 49 employeesSan Francisco, CAHarlo Agency is a small branding agency. Established in 2004, the team provides Branding and Marketing Strategy.Read More
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1053$5,000+10 - 49 employeesLos Angeles, CABased in Los Angeles, California, Brand Knew is a small website development firm. Their services include Web Development and Mobile App Development.Read More
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1054$5,000+10 - 49 employeesSan Francisco, CASEO company Ideal Visibility is based in San Francisco, California. They focus on Search Engine Optimization and Pay Per Click.Read More
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1055$5,000+10 - 49 employeesAgoura Hills, CAActive Ennovations is a custom software development company based in Agoura Hills, California. They focus on Custom Software Development and Web Development and were founded in 2004.Read More
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1056$5,000+10 - 49 employeesOakland, CAKollective Mobile, a web design agency, was established in 2010. Based in Oakland, California, the team provides Web Design and UX/UI Design.Read More
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1057$5,000+10 - 49 employeesIrvine, CATrinet Internet Solutions is a small web design agency located in Irvine, California and Frisco, Texas. The team offers Web Design and Web Development.Read More
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Orange County Transportation Authority -
1058$5,000+10 - 49 employeesSan Francisco, CAMadrone Studios is a social media marketing firm. They specialize in Social Media Marketing and Web Design and are in San Francisco, California.Read More
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1059$5,000+10 - 49 employeesSan Jose, CASocial media marketing agency Jway Group was launched in 1994. The team provides Social Media Marketing and Content Marketing.Read More
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1060$5,000+10 - 49 employeesSan Francisco, CADesignworks - Inspire Action is a branding agency headquartered in San Francisco, California. Their services include Branding and Marketing Strategy.Read More
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1061$5,000+10 - 49 employeesClovis, CADigital Attic is a web design agency. Launched in 1992, the firm provides Web Design and Branding.Read More
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1062$10,000+10 - 49 employeesMission Viejo, CARead More
ConsultingWhiz is an app and software development agency located in Mission Viejo, Calif. Founded in 2016, it has more than 25 employees who specialize in mobile app development, custom software development, and AI. They mainly serve enterprise and midmarket clients in industries such as financial services, health care & medical, and energy & natural resources.
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HyundaiIndustries
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1063Undisclosed10 - 49 employeesSan Diego, CANOYO Web Development, a SEO company, is in San Diego, California. They focus on Search Engine Optimization and Web Design and were established in 2007.Read More
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1064Undisclosed10 - 49 employeesUnion City, CAClatter Chatter Inc is a social media marketing agency established in 2013. Their services include Social Media Marketing and Pay Per Click.Read More
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1065Undisclosed10 - 49 employeesVista, CACMG Creative, a web development company, was launched in 1996. The company specializes in Web Development and Graphic Design.Read More
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1066Undisclosed10 - 49 employeesWest Covina, CAZero Six Media is a custom software development firm. Based in West Covina, California, the agency was launched in 2008. Their services include Custom Software Development and Web Design.Read More
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1067Undisclosed10 - 49 employeesWalnut Creek, CASmall social media marketing firm WebGrit, is based in Walnut Creek, California. The team provides Social Media Marketing and Content Marketing.Read More
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1068Undisclosed10 - 49 employeesLake Forest, CASuper Toy Box is a small AR/VR development company founded in 2015. Their services include AR/VR development and Advertising.Read More
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1069Undisclosed10 - 49 employeesIrvine, CAAbelian is a CRM consulting and SI company established in 2017. Headquartered in Irvine, California, the team specializes in CRM consulting and SI and Mobile App Development.Read More
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1070Undisclosed10 - 49 employeesIrvine, CAEstablished in 2003, Solution21, Inc. Is a social media marketing firm. The team provides Social Media Marketing and Content Marketing.Read More
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1071Undisclosed10 - 49 employeesFresno, CAMertech Data Systems, Inc. Is a small custom software development firm based in Pembroke Pines, Florida and Fresno, California. The team offers Custom Software Development and cloud consulting & SI.Read More
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1072Undisclosed10 - 49 employeesSan Diego, CAAdvantu is an Application Testing company. Their small team of employees is based in San Diego, California. Their team offers Application Testing and Custom Software Development.Read More
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1073Undisclosed10 - 49 employeesPleasanton, CAHeadquartered in Pleasanton, California and Vadodara, India, Exaqode is a small UX design agency. The team focuses on UX/UI Design and IT strategy consulting.Read More
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1074Undisclosed10 - 49 employeesSan Ramon, CACidersoft is a web design company. The San Ramon, California-based team provides Web Design and UX/UI Design.Read More
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1075Undisclosed10 - 49 employeesLos Angeles, CAAutomatedView Technologies is a Los Angeles, California-based Digital Strategy company. Their services include Digital Strategy and BI & big data consulting & SI.Read More
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1076$25,000+50 - 249 employeesCosta Mesa, CARead More
Squash Apps is a software development company founded in 2015 and headquartered in Coimbatore, India. It has a team of about 20. Squash Apps works on mobile app development, custom software development, web development, and more for small businesses.
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DoodlioIndustries
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1077$10,000+2 - 9 employeesSan Diego, CAEstablished in 2023, Life Tree Studio is a small San Diego, California-based software development company. Their services include Custom Software Development and Web Development.Read More
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1078$5,000+10 - 49 employeesHUNTINGTN BCH, CAWEBZINO TECHNOLOGIES PVT LTD is a mobile application development firm located in Mumbai, India and Delhi, India. The team specializes in Mobile App Development and E-Commerce Development.Read More
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1079$5,000+50 - 249 employeesDublin, CAPipra Solutions is a cloud consulting & SI company. They were established in 2017, and their services include cloud consulting & SI and Mobile App Development.Read More
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1080Undisclosed10 - 49 employeesSan Diego, CASmall user experience agency Pixels Matter, Inc., is located in San Diego, California and Rudne, Ukraine. The team focuses on UX/UI Design and cloud consulting & SI.Read More
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