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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301$1,000+250 - 999 employeesBakersfield, CAPacific Logo Designs is a web design company headquartered in Bakersfield, California. The midsize company was launched in 1994. Their team provides web design, logo, search engine optimization, and mobile app development.Read More
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302$1,000+50 - 249 employeesSan Mateo, CAFounded in 2018, PieCyfer is a Generative AI company. The team specializes in Generative AI and IT staff augmentation.Read More
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303$1,000+10 - 49 employeesSacramento, CABased in Sacramento, California, Geekybugs is an user experience design company. They specialize in UX/UI Design and ERP consulting and SI and were founded in 2018.Read More
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304$10,000+10 - 49 employeesLos Angeles, CAE-commerce development firm Dimension Software is based in Los Angeles, California. Established in 1998, the team focuses on E-Commerce Development and Mobile App Development.Read More
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305$10,000+50 - 249 employeesWalnut Creek, CAMEV, a software development company, is in Walnut Creek, California. The team offers Custom Software Development and Mobile App Development.Read More
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306$10,000+10 - 49 employeesMountain View, CASmall branding agency Purple Bunny, is located in San Isidro, Argentina and Mountain View, California. They specialize in Branding, Web Design, Product Design, Web Development, and more and were launched in 2012.Read More
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307$5,000+10 - 49 employeesSan Jose, CAAppCode Technologies is a website development firm in Faridabad, India and San Jose, California. Founded in 2016, the team focuses on Web Development and Mobile App Development.Read More
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308$5,000+10 - 49 employeesLos Angeles, CANS5 | Software Development Company is a software development company launched in 1999. The firm offers Custom Software Development and Web Development.Read More
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309$5,000+10 - 49 employeesLos Angeles, CADream Warrior Group is a custom software development company. Their team is based in Los Angeles, California and provides Custom Software Development and Conversion Optimization.Read More
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Disney ChannelIndustries
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310$5,000+10 - 49 employeesSan Francisco, CALaunched in 2011, Nitid Bit is a website development firm. The team offers Web Development and Mobile App Development and is based in San Francisco, California.Read More
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311Undisclosed250 - 999 employeesIrvine, CALaunched in 2018, ThinkAiCorp, a midsize big data analytics company, is in Irvine, California. Their team specializes in BI & big data consulting & SI and Mobile App Development.Read More
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312$1,000+10 - 49 employeesSan Francisco, CAThe Website Designs is a San Francisco, California-based branding firm. The small agency was established in 2009. Their team focuses on branding, public relations, social media marketing, pay per click, and more.Read More
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313$25,000+2 - 9 employeesThousand Oaks, CABuena Digital is a custom software development firm. The team provides Custom Software Development and Mobile App Development, and the agency is based in Thousand Oaks, California.Read More
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TaxAuditIndustries
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314$10,000+2 - 9 employeesSan Francisco, CAFounded in 2018, SideLabs is a small mobile application development company. Their team focuses on Mobile App Development and Other Application Development.Read More
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315$5,000+2 - 9 employeesSan Diego, CAApplication development firm devAtelier offers Mobile App Development and Web Development. They are located in San Diego, California.Read More
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316$1,000+50 - 249 employeesSacramento, CALaunched in 2018, Technupur is a midsize custom software development company. Their services include Custom Software Development and BI & big data consulting & SI.Read More
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317$10,000+50 - 249 employeesSunnyvale, CAUpTeam is a Sunnyvale, California-based IT staff augmentation company. They specialize in IT staff augmentation and Web Development and were established in 2012.Read More
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318$100,000+250 - 999 employeesLos Angeles, CADeutsch LA is a Los Angeles, California-based website development firm. The team offers Web Development and E-Commerce Development.Read More
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319$5,000+2 - 9 employeesLong Beach, CAOS Ignite, Inc. Is an app development company. The firm is in Long Beach, California and Costa Mesa, California. Their services include Mobile App Development and Custom Software Development.Read More
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320$25,000+10 - 49 employeesSan Jose, CARead More
Crea is a software development company. They offer custom software development, mobile app development, and api development and were launched in 2017. Their small team is San Jose, California-based.
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321$10,000+50 - 249 employeesFremont, CARead More
Radiansys Inc is a midsize artificial intelligence development company. Launched in 2007, the company is based in Gurugram, India and Fremont, California. Their services include Artificial Intelligence, AI Consulting, AI Agents, Generative AI, and more.
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322Undisclosed50 - 249 employeesSan Jose, CAEike Consulting is a software development company. Their team is in San Jose, California and provides Custom Software Development and Mobile App Development.Read More
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323Undisclosed50 - 249 employeesSan Francisco, CARead More
ClearScale is a cloud-native systems integration, strategic consulting, and application development company founded in San Francisco with over 50 employees. They provide custom software development, mobile app development, and big data consulting services.
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324$1,000+10 - 49 employeesFremont, CATeam247 Inc. Is a software development company. Launched in 2016, the company is located in Fremont, California. Their team specializes in Custom Software Development and Enterprise App Modernization.Read More
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325$25,000+2 - 9 employeesSan Diego, CAMobile application development firm Tapcrew LLC was founded in 2010. The company offers Mobile App Development and UX/UI Design, and is small.Read More
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326$25,000+2 - 9 employeesSonoma, CAWithyou, a web development company and mobile app development company, is headquartered in Kronberg im Taunus, Germany and Sonoma, California. They focus on Web Development and Mobile App Development.Read More
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327$5,000+50 - 249 employeesSan Jose, CAWeb design company Infinix Designs is based in San Jose, California. Founded in 2019, the team specializes in Web Design and UX/UI Design.Read More
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Good Guard TexasIndustries
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328Undisclosed10 - 49 employeesSan Francisco, CASoftAvail, Inc., a small software development company, is located in San Francisco, California and Sofia City, Bulgaria. The team focuses on Custom Software Development and Mobile App Development.Read More
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329$1,000+50 - 249 employeesLos Angeles, CAWeb design agency Harvard Web Designers was founded in 2015. The company specializes in Web Design and Mobile App Development, and is midsize.Read More
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330$25,000+50 - 249 employeesBeverly Hills, CAWeb design company Friflex is located in Beverly Hills, California. Their services include Web Design and UX/UI Design.Read More
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