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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1201Undisclosed2 - 9 employeesStockton, CAWhimsicode is a branding company. The small Stockton, California-based team provides Branding and Mobile App Development. The company was launched in 2016.Read More
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1202Undisclosed2 - 9 employeesLos Angeles, CABranding firm WEBMOO is based in Los Angeles, California. They provide Branding and E-Commerce Development and were launched in 2012.Read More
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1203Undisclosed2 - 9 employeesNorwalk, CAOryxenter LLC is a Digital Strategy company. Their small team is in Norwalk, California. Their team specializes in Digital Strategy and Graphic Design.Read More
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1204Undisclosed2 - 9 employeesOakland, CALocated in Oakland, California, Palo Colorado Software, LLC is a small custom software development company. Their services include Custom Software Development and UX/UI Design.Read More
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1205Undisclosed2 - 9 employeesIrvine, CAMethod Data Science is a small business intelligence company. They specialize in BI & big data consulting & SI and Web Development and were launched in 2018.Read More
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1206Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2021, One River Consulting Inc, a small software development company, is headquartered in Los Angeles, California. Their team offers Custom Software Development and Web Development.Read More
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1207Undisclosed2 - 9 employeesSunnyvale, CAEstablished in 2006, AppLite.com is a SEO company. The agency specializes in Search Engine Optimization and BI & big data consulting & SI, and is small.Read More
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1208Undisclosed2 - 9 employeesTorrance, CABlockchain Studioz is a small Blockchain company. Established in 2015, the team provides Blockchain and Blockchain Marketing.Read More
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1209Undisclosed2 - 9 employeesSacramento, CAInterstate PR is a branding firm. Located in Sacramento, California, the agency was established in 2014. Their team specializes in Branding and Public Relations.Read More
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1210$1,000+50 - 249 employeesHuntington Beach, CAAmbsan Technologies is a Karachi, Pakistan-based custom software development company. The team provides Custom Software Development and Mobile App Development.Read More
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1211$5,000+10 - 49 employeesSan Francisco, CARead More
EvolveDash Inc is a Content Marketing company. They are based in Montreal, Canada; San Francisco, California; Lahore, Pakistan and Dubai, United Arab Emirates and have a small team that provides Content Marketing, Search Engine Optimization, Mobile App Development, Social Media Marketing, and more. The company was launched in 2019.
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1212$5,000+10 - 49 employeesSanta Clara, CAZAAG SYSTEMS, an IT staff augmentation company, is in Dhaka, Bangladesh and Santa Clara, California. They offer IT staff augmentation, Custom Software Development, E-Commerce Development, Mobile App Development, and more and were founded in 2020.Read More
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1213$5,000+50 - 249 employeesJaipur, IndiaDianApps is an app development company based in ST. Petersburg, Florida; Jaipur, India; Gurugram, India and Mindarie, Australia. The midsize company was launched in 2017. Their team provides Mobile App Development, CRM consulting and SI, Web Development, Low/No Code Development, and more.Read More
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1214$1,000+2 - 9 employeesLos Angeles, CACodeger is a web design company founded in 2018. The team focuses on Web Design and Web Development and is headquartered in Delhi, India and Toronto, Canada.Read More
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1215$25,000+1,000 - 9,999 employeesCorte Madera, CAEstablished in 2003, Svitla Systems is an IT managed services company. They are located in Corte Madera, California; Guadalajara, Mexico; Kraków, Poland and San Jose, Costa Rica and have a large team. Their services include IT managed services, Web Development, cloud consulting & SI, Artificial Intelligence, and more.Read More
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Logitech Helper Systems Wisetack Trauma BraceIndustries
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1216$1,000+50 - 249 employeesSaratoga, CARead More
Software Developers, Inc. is a software development company that was founded in 2007. They are headquartered in Saratoga, Calif., with secondary locations in Melbourne, Australia, Mumbai, India, and London, England. The company has 94 employees and specializes in mobile app development, custom software development, and UX/UI design. They serve all levels of clientele in the business services and entertainment industries.
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PepsiIndustries
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1217Undisclosed10 - 49 employeesWestminster, CAData E-Global, a Digital Strategy company, is based in Westminster, California. They provide Digital Strategy and Marketing Strategy and were established in 2016.Read More
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1218Undisclosed10 - 49 employeesTemecula, CAZooliad is a web design agency established in 2013. The company specializes in Web Design and Branding, and is small.Read More
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1219UndisclosedFreelancer employeesSacramento, CAUser experience agency BPXI/O was founded in 2014. The small team provides UX/UI Design and Business Consulting.Read More
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1220$1,000+50 - 249 employeesSan Jose, CAGraphic design company June Spring Multimedia was established in 2013. In Mandaue City, Philippines and San Jose, California, the team focuses on Graphic Design and Mobile App Development.Read More
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1221$10,000+250 - 999 employeesOaklands Park, AustraliaAVROX Solutions, a custom software development firm, was founded in 2015. Their midsize team is based in Oaklands Park, Australia; Rawalpindi, Pakistan and Palo Alto, California. The agency focuses on custom software development, web development, web design, ux/ui design, and more.Read More
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1222$10,000+10 - 49 employeesSan Jose, CAArastu Systems is an IoT development company. The agency is in San Jose, California and Ahmedabad, India. Their team provides IoT development and Enterprise App Modernization.Read More
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1223$5,000+50 - 249 employeesSan Jose, CAAdvanced Business Solutions | SAP Partner is an ERP consulting and SI company launched in 2010. The firm specializes in ERP consulting and SI and Custom Software Development.Read More
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1224$5,000+2 - 9 employeesLong Beach, CAUP Creative, Inc. Is a Digital Strategy company launched in 2012. The team provides Digital Strategy and Social Media Marketing.Read More
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Century 21Industries
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1225Undisclosed50 - 249 employeesSan Jose, CAMidsize application development company The App Guruz, is in Rajkot, India and San Jose, California. Their services include Mobile App Development and UX/UI Design.Read More
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1226Undisclosed2 - 9 employeesLong Beach, CAEstablished in 2005, X1mediatools is a graphic design agency. Located in Long Beach, California, the team offers Graphic Design and Web Design.Read More
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1227Undisclosed2 - 9 employeesWhittier, CALaunched in 1997, DigiCal is a video production company. Located in Whittier, California, the team specializes in Video Production and Web Design.Read More
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1228Undisclosed2 - 9 employeesStockton, CASmall app development company Rhesus Media Group, is in Stockton, California. Their services include Mobile App Development and Search Engine Optimization.Read More
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1229Undisclosed2 - 9 employeesTorrance, CAGeek Force Web is a small Torrance, California-based web design company. The team offers Web Design and UX/UI Design.Read More
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1230$1,000+10 - 49 employeesSan Francisco, CARead More
Alternova is a software development studio based in Medellin, Colombia, with an office in San Francisco. The studio, founded in 2019, has a team of around 20 that provides custom software development, web design & development, AR/VR development, mobile app development, and e-commerce development services. Alternova serves enterprise and smaller-sized companies in the business services, gaming, real estate, and e-commerce industries.
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UCSFIndustries
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