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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1081$50,000+250 - 999 employeesMilpitas, CARead More
West Agile Labs is a software development and digital design company. The team is headquartered in San Francisco and has additional offices in Pakistan, Ukraine, and India. Founded in 2012, they currently employ over 120 professionals. West Agile Labs provides custom software development, e-commerce development, and mobile app development services.
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UnationIndustries
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1082$1,000+50 - 249 employeesTracy, CALogix Built Solutions Pvt Ltd is an user experience agency launched in 2017. Their services include UX/UI Design and cloud consulting & SI.Read More
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1083$5,000+50 - 249 employeesOrange, CALumen21, Inc is a cloud consulting & SI company. Based in Orange, California and Mumbai, India, the firm was launched in 2007. Their team offers cloud consulting & SI and Cybersecurity.Read More
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1084$5,000+50 - 249 employeesLos Angeles, CARead More
Differenz System is a development company founded in 2013 and located in Irvine, Calif. They have a team of about 115 individuals who offer mobile app and web development services. Their client base comprises small businesses in the business services, arts, entertainment, and music, health care and medical, and hospitality and leisure industries.
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1085$25,000+10 - 49 employeesSanta Clara, CAProduct Design company Sequoia Applied Technologies was launched in 2016. The company specializes in Product Design and IT strategy consulting.Read More
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1086Undisclosed250 - 999 employeesSanta Clara, CASpanIdea Systems is a business intelligence company. They were launched in 2011, and their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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1087$1,000+1,000 - 9,999 employeesLos Angeles, CAProbey Services is a web design company founded in 2016. The large team specializes in Web Design, Web Development, Mobile App Development, and Custom Software Development. The agency is based in London, England; New York, New York; Noida, India and Toronto, Canada.Read More
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1088Undisclosed10 - 49 employeesLos Angeles, CALaunched in 2014, META+LAB CA is a web development firm. The small team specializes in Web Development and Mobile App Development.Read More
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1089Undisclosed10 - 49 employeesCosta Mesa, CAWebsite development firm All In Orbit is based in Costa Mesa, California. They offer Web Development and Mobile App Development.Read More
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1090Undisclosed10 - 49 employeesElk Grove, CASyTech Solutions, a software development firm, is based in Elk Grove, California. The team provides Custom Software Development and IT managed services.Read More
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1091$10,000+50 - 249 employeesBerlin, GermanyEdenspiekermann, an user experience company, is headquartered in Amsterdam, Netherlands and Barcelona, Spain. Launched in 2009, the team specializes in UX/UI Design and Graphic Design.Read More
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1092$5,000+50 - 249 employeesSanta Clara, CABorqs is an UX agency. Launched in 2007, the firm is headquartered in Santa Clara, California and Beijing, China. Their services include UX/UI Design and Custom Software Development.Read More
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1093UndisclosedFreelancer employeesSan Francisco, CASmall application development company VVG Design, is in San Francisco, California. The team provides Mobile App Development and Advertising.Read More
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1094$1,000+Freelancer employeesAnaheim, CAFounded in 2014, socialomical is a small Anaheim, California-based branding agency. Their team specializes in Branding and Product Design.Read More
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1095$25,000+50 - 249 employeesSan Jose, CARead More
Website development company Light IT Global was established in 2006. The midsize Rickmansworth, England-based team focuses on Web Development, Custom Software Development, Mobile App Development, Artificial Intelligence, and more.
Clients
PfizerIndustries
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1096$5,000+10 - 49 employeesCarlsbad, CACoreTeams Softech Pvt Ltd is a branding agency headquartered in Jaipur, India and Carlsbad, California. The team focuses on Branding and Social Media Marketing.Read More
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1097$5,000+2 - 9 employeesManhattan Beach, CABroadwave Agency is an user experience design company. They were established in 2003 and focus on UX/UI Design and Digital Strategy.Read More
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1098$5,000+2 - 9 employeesLos Angeles, CAThe Web Corner, Inc. Is a web design agency established in 2004. Their team provides Web Design and Web Development.Read More
Industries
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1099$5,000+2 - 9 employeesSignal Hill, CAZuno Design Studios is a branding company. Established in 2007, the firm is in Signal Hill, California. Their team specializes in Branding and Web Design.Read More
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1100$5,000+2 - 9 employeesRancho Cordova, CADigital Gear is a website development company. Their small team is located in Rancho Cordova, California. Their services include Web Development and Branding.Read More
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1101Undisclosed2 - 9 employeesWalnut Creek, CASomethumb Web Design and Development is a small website development company launched in 2003. Their team offers Web Development and Search Engine Optimization.Read More
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1102Undisclosed2 - 9 employeesAnaheim, CANsLayout is a website development firm headquartered in Anaheim, California. Established in 2010, the team provides Web Development and E-Commerce Development.Read More
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1103Undisclosed2 - 9 employeesMonterey Park, CAClick Refresh Inc. Is an e-commerce development firm founded in 2007. Their services include E-Commerce Development and Logo.Read More
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1104Undisclosed2 - 9 employeesSanta Ana, CAIn Santa Ana, California, Revho Ad Agency is a branding firm. Founded in 2014, the team specializes in Branding and Search Engine Optimization.Read More
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1105Undisclosed2 - 9 employeesSanta Ana, CASynergy Digital is a small Email Marketing company in Santa Ana, California. The team specializes in Email Marketing and Pay Per Click.Read More
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1106Undisclosed2 - 9 employeesFullerton, CABranding agency Grass Fed Creative was launched in 2015. The team specializes in Branding and Marketing Strategy.Read More
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1107Undisclosed2 - 9 employeesLa Palma, CAThe Web Scientists is a small Back Office Outsourcing company based in La Palma, California. The team offers Back Office Outsourcing and Search Engine Optimization.Read More
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1108$1,000+2 - 9 employeesSan Diego, CARead More
Excl Networks, a web design company, is located in San Diego, California. The small company was founded in 2016. Their team specializes in web design, web development, custom software development, advertising, and more.
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1109Undisclosed2 - 9 employeesRoseville, CAEstablished in 2016, RAD Media Co. Is a social media marketing company. The team provides Social Media Marketing and Email Marketing.Read More
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1110Undisclosed2 - 9 employeesMarina del Rey, CALaunched in 2020, Aegis Studio, a small Blockchain Marketing company, is located in Marina del Rey, California. Their services include Blockchain Marketing and Blockchain.Read More
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