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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601$1,000+10 - 49 employeesLos Angeles, CAITColark is an IT strategy consulting company. Based in Los Angeles, California, the agency was established in 2021. Their team focuses on IT strategy consulting and IT managed services.Read More
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602$50,000+10 - 49 employeesLos Angeles, CARead More
Gonni Agency is a UX and branding agency based in Buenos Aires, Argentina. Founded in 2012, their team of around 10 employees specializes in UI/UX design and branding.
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Diamond KinethicsIndustries
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603Undisclosed50 - 249 employeesSan Francisco, CAFounded in 2009, KriyaTec IT Systems is an IT staff augmentation company. The midsize team offers IT staff augmentation and Custom Software Development.Read More
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604Undisclosed50 - 249 employeesSan Diego, CATagrem Corp is an UX design company founded in 1999. Their team specializes in UX/UI Design and cloud consulting & SI.Read More
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605$1,000+50 - 249 employeesCampbell, CACreative Logo Agency is a Logo company. The firm is located in Campbell, California. Their team provides Logo and Social Media Marketing.Read More
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606$5,000+10 - 49 employeesSanta Monica, CAIdea Rebel, a small Digital Strategy company, is based in Vancouver, Canada and Toronto, Canada. The team provides Digital Strategy and E-Commerce Development.Read More
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607$25,000+10 - 49 employeesSan Francisco, CAReinteractive is a software development company. The San Francisco, California-based team focuses on Custom Software Development and E-Commerce Development.Read More
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608$5,000+50 - 249 employeesSan Diego, CAIn Bikaner, India; San Diego, California; Durban, South Africa and Dammam, Saudi Arabia, iWebwiser is a web development company. The midsize firm was established in 2018. Their services include Web Development, Mobile App Development, Custom Software Development, Marketing Strategy, and more.Read More
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609$1,000+50 - 249 employeesSan Francisco, CAPremium Web Experts is a web development company. They focus on Web Development and Advertising and are in San Francisco, California.Read More
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610Undisclosed2 - 9 employeesLivermore, CAWoll2Woll Software is an IT managed services and mobile app development company launched in 1995. The firm focuses on IT managed services and Mobile App Development.Read More
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611$5,000+50 - 249 employeesWestlake Village, CAScreamingBox is an Other Application Development company. The company is based in Westlake Village, California. Their services include Other Application Development and Custom Software Development.Read More
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612$1,000+50 - 249 employeesBell Gardens, CAVisionary Web Studios is a Marketing Strategy company. Founded in 2015, the firm is based in Bell Gardens, California. Their services include Marketing Strategy and Social Media Marketing.Read More
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613$5,000+2 - 9 employeesSacramento, CAIntelliquarck, a cloud consulting & SI company, is located in Sacramento, California. The team specializes in cloud consulting & SI and CRM consulting and SI.Read More
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614$5,000+2 - 9 employeesLos Angeles, CAIn Los Angeles, California, Avocadatoria is a web development company. Founded in 2019, the team focuses on Web Development and Mobile App Development.Read More
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615$1,000+250 - 999 employeesSan Jose, CAAspire Website Designs is a web design agency. They specialize in Web Design and Video Production and were established in 2010.Read More
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616$10,000+10 - 49 employeesPalo Alto, CASeroft.com, a small software development firm, is headquartered in Palo Alto, California and London, England. The team provides Custom Software Development and Mobile App Development.Read More
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617$10,000+50 - 249 employeesSacramento, CASoftenix is a software development company. They specialize in Custom Software Development and Web Development and were founded in 2010. The company is in Sacramento, California.Read More
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618$1,000+50 - 249 employeesSunnyvale, CAContent Marketing company The Web Coders Agency is based in Sunnyvale, California. Their services include Content Marketing and Mobile & App Marketing.Read More
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619Undisclosed10 - 49 employeesMenlo Park, CAFLYING COW DESIGN is a branding agency. They are located in Menlo Park, California, and their services include Branding and Web Design.Read More
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620$250,000+10 - 49 employeesSan Francisco, CAMilkinside is an UX design company. Launched in 2018, the team specializes in UX/UI Design and Product Design.Read More
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621$1,000+10 - 49 employeesLos Angeles, CAMOBIZEAL Apps is a web design company established in 2012. The team specializes in Web Design and UX/UI Design.Read More
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622$1,000+2 - 9 employeesLos Angeles, CAGrafx apps is a website development company. Founded in 2019, the team offers Web Development and UX/UI Design.Read More
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623$50,000+2 - 9 employeesSan Francisco, CABitmatica, an user experience company, is located in San Francisco, California. They specialize in UX/UI Design and Web Design and were established in 2012.Read More
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624$10,000+50 - 249 employeesSan Francisco, CAProximity Works is an AI development company located in San Francisco, California and Palo Alto, California. They provide Artificial Intelligence and Generative AI and were launched in 2019.Read More
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Nasdaq ESPN Disney+ HotStarIndustries
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625$1,000+10 - 49 employeesSan Francisco, CAMindexa is a San Francisco, California-based branding firm. They offer Branding and Web Design and were established in 2015.Read More
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626$5,000+2 - 9 employeesSacramento, CAWebjetx, a branding agency, was launched in 2021. The agency specializes in Branding and UX/UI Design, and is small.Read More
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627$1,000+2 - 9 employeesSan Leandro, CAFounded in 2023, Frank Dev LLC is a branding company. Located in San Leandro, California, the team specializes in Branding and BI & big data consulting & SI.Read More
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628$25,000+2 - 9 employeesIrvine, CACybersecurity company GoatBytes.IO is located in Irvine, California. Their services include Cybersecurity and Mobile App Development.Read More
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629$1,000+2 - 9 employeesLos Angeles, CAContent Marketing company Driftera is based in Los Angeles, California and San Francisco, California. Their services include Content Marketing and Custom Software Development.Read More
Industries
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630Undisclosed2 - 9 employeesSanta Rosa, CASolorio designs is a web design agency. The team is headquartered in Santa Rosa, California, and their services include Web Design and Custom Software Development.Read More
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