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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691$1,000+2 - 9 employeesAliso Viejo, CAStarfruit - Design Lab is a web design agency based in Aliso Viejo, California. Launched in 2025, the team specializes in Web Design and UX/UI Design.Read More
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692$25,000+10 - 49 employeesLos Angeles, CAAr3Tek is a software development firm established in 2020. Their small team is headquartered in and specializes in custom software development, graphic design, and cloud consulting & SI.Read More
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693$1,000+10 - 49 employeesLos Angeles, CAICommuneTech is a small website development firm. Established in 2014, the agency is headquartered in Los Angeles, California and Ahmedabad, India. Their team offers Web Development, Mobile App Development, E-Commerce Development, Web Design, and more.Read More
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694$1,000+2 - 9 employeesLos Angeles, CAHeadquartered in Los Angeles, California, X Design Solutions is a SEO company. They provide Search Engine Optimization and Public Relations.Read More
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695$1,000+2 - 9 employeesHuntington Beach, CAExclusive Business Marketing is an Advertising company. Established in 2014, the company provides Advertising and Graphic Design.Read More
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696$1,000+2 - 9 employeesLos Angeles, CALaunched in 2016, Mobiweb Global Solutions is a social media marketing agency. The small team specializes in Social Media Marketing and Search Engine Optimization.Read More
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697Undisclosed2 - 9 employeesLos Angeles, CAPlexipi, an Advertising company, was launched in 2025. The company provides Advertising and Direct Marketing, and is small.Read More
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698$5,000+2 - 9 employeesSan Marcos, CAThat One Couple, a graphic design agency, was founded in 2023. The company provides Graphic Design and Logo.Read More
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699$50,000+2 - 9 employeesPiedmont, CABrainChild Innovation is a small artificial intelligence development company headquartered in Piedmont, California. Their services include Artificial Intelligence and IoT development.Read More
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700Undisclosed10 - 49 employeesPasadena, CAWebs Anchor is a small Pasadena, California-based social media marketing company. The team focuses on Social Media Marketing and Mobile & App Marketing.Read More
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701$10,000+10 - 49 employeesOakland, CARead More
Founded in 2021, Nimi Tech Limited is a small software development firm based in Oakland, California; Colombo, Sri Lanka and Chennai, India. Their services include custom software development, web development, mobile app development, IT staff augmentation, and more.
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702$5,000+10 - 49 employeesFremont, CATOPSYNTAX INC, a software development firm, is in Fremont, California. They specialize in Custom Software Development and Enterprise App Modernization and were founded in 2018.Read More
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703$1,000+10 - 49 employeesSan Francisco, CAWebsite Avalon, a small website development company, is headquartered in San Francisco, California. Their services include Web Development and Web Design.Read More
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704$5,000+10 - 49 employeesLos Angeles, CAFounded in 2018, Web Districts is an e-commerce development company. Their small team is based in Los Angeles, California. Their team offers e-commerce development, email marketing, graphic design, mobile app development, and more.Read More
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705$10,000+10 - 49 employeesOakland, CAHuman Decode is a web development company. They are headquartered in Oakland, California and have small team. They provide Web Development and IT staff augmentation.Read More
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706Undisclosed10 - 49 employeesSan Francisco, CABranding Elevator, a SEO company, was launched in 2023. The team specializes in Search Engine Optimization and Web Design.Read More
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707$5,000+10 - 49 employeesMurrieta, CALaunched in 2006, SYSTELLEX is a social media marketing company. The team offers Social Media Marketing and Search Engine Optimization.Read More
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708$10,000+10 - 49 employeesSan Juan Capistrano, CAKbrax, Inc. Is a San Juan Capistrano, California-based software development firm. Their services include Custom Software Development and Mobile App Development.Read More
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709$5,000+10 - 49 employeesLos Angeles, CAFounded in 2014, Mohi is a web development firm. The team provides Web Development and E-Commerce Development and is based in Los Angeles, California.Read More
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710$1,000+10 - 49 employeesArtesia, CAEstablished in 2023, Abse Tech Inc is a small social media marketing firm. Their services include Social Media Marketing and Search Engine Optimization.Read More
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711$25,000+10 - 49 employeesSan Diego, CANexus Engineering Solutions is a small IoT development company located in San Diego, California. The team specializes in IoT development and Product Design.Read More
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712$5,000+50 - 249 employeesSan Francisco, CATekbees is a midsize software development firm. Based in San Francisco, California and Bogotá, Colombia, the agency was established in 2013. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
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713$10,000+10 - 49 employeesCarlsbad, CABrash, a Product Design company, was launched in 2017. The company focuses on Product Design, UX/UI Design, Engineering, IoT development, and more and has a small team.Read More
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714$5,000+2 - 9 employeesBerkeley, CARead More
NRGsurf is a software development company. They specialize in custom software development, web development, mobile app development, IoT development, and more and were founded in 2019. The agency is based in Hallbergmoos, Germany.
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715$1,000+2 - 9 employeesBakersfield, CAAvenva Solutions is an AI Agents company. Their small team is headquartered in Bakersfield, California. Their services include AI Agents, Custom Software Development, Artificial Intelligence, Mobile App Development, and more. The agency was established in 2024.Read More
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716$1,000+2 - 9 employeesLos Angeles, CAGamut Dev is an user experience design agency launched in 2010. The firm offers UX/UI Design and Web Design.Read More
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717$10,000+2 - 9 employeesIrvine, CANovizant is a cloud consulting & SI company. Their team is in Irvine, California and specializes in cloud consulting & SI and IoT development.Read More
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718$1,000+2 - 9 employeesLos Angeles, CAGet Logo Now, a web design agency, was launched in 2023. Headquartered in Los Angeles, California, the team offers Web Design and UX/UI Design.Read More
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719$100,000+50 - 249 employeesCulver City, CARead More
Application development company Stateside Agency is located in Culver City, California and San José, Costa Rica. The midsize team offers mobile app development, web development, ux/ui design, e-commerce development, and more. The agency was founded in 2013.
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720$25,000+50 - 249 employeesSan Francisco, CASynergy Labs is an app development firm. Their midsize team is in Hollywood, Florida; Miami, Florida; New York, New York and Dubai, United Arab Emirates and provides Mobile App Development, Custom Software Development, Artificial Intelligence, Generative AI, and more. The firm was launched in 2020.Read More
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