Top 100 Mobile App Developers in California
The Best of January 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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31$25,000+10 - 49 employeesVista, CAFounded in 2005, The Smyth Group is an UX design agency. The small team focuses on UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more. The agency is headquartered in Vista, California; New York, New York and Scottsdale, Arizona.Read More
Clients
Columbia SportswearIndustries
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32$25,000+10 - 49 employeesLos Angeles, CAFrenchy Digital LLC is a mobile application development firm. Their small team is in Los Angeles, California; Genève, Switzerland; Hydra, Algeria and Publier, France. Their services include Mobile App Development, Web Development, and Artificial Intelligence. The company was established in 2019.Read More
Clients
iGlow Med SpaIndustries
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33$10,000+50 - 249 employeesSan Francisco, CAAzumo, a software development company, was launched in 2016. They are located in San Francisco, California and Rosario, Argentina and have a midsize team. Azumo offers Custom Software Development, Artificial Intelligence, Mobile App Development, BI & big data consulting & SI, and more.Read More
Clients
Twitter Facebook Omnicom Discovery ChannelIndustries
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34$5,000+50 - 249 employeesAltadena, CAEbizON Digital is an e-commerce development firm based in Altadena, California and Noida, India. The midsize firm was launched in 2007. Their services include E-Commerce Development, Custom Software Development, Mobile App Development, and Web Development.Read More
Industries
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35$10,000+50 - 249 employeesSan Francisco, CARead More
AirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development.
Clients
HPIndustries
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36$25,000+10 - 49 employeesIrvine, CABaytech Consulting is a custom software development company based in Irvine, California. They focus on Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more and were launched in 2007.Read More
Clients
Petra Medical CollegeIndustries
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37$50,000+10 - 49 employeesIrvine, CARead More
MEDL Mobile is a mobile and wearable app developer established in 2008 and based in Fountain Valley, CA. The 10+ staff is comprised of veteran strategists, serial entrepreneurs, and big idea enthusiasts who share a love for code.
Clients
Toyota Disney Hyundai DreamscapeIndustries
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38$25,000+250 - 999 employeesPalo Alto, CARead More
Reinvently is a mobile strategy and app development agency in Palo Alto, Calif. and Dallas. With a team of about 43 employees, the agency specializes in UI/UX design, research and consulting, and engineering.
Clients
Men's WearhouseIndustries
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39$50,000+10 - 49 employeesLong Beach, CARead More
Established in 2001, JLOOP is a mobile application development firm. Their small team is based in Long Beach, California and , . Their team focuses on mobile app development, web development, and video production.
Clients
IBMIndustries
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40$5,000+50 - 249 employeesSan Francisco, CARead More
Siddhi Infosoft is a web and mobile app development company based in San Francisco, with a secondary location in Ahmedabad, India. Siddhi Infosoft was founded in 2011 and has 25 employees. Services offered by this company include mobile app development and web development for companing ranging from startups to Fortune 500 brands.
Clients
DizzyDoctorIndustries
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41$10,000+10 - 49 employeesEncinitas, CARead More
ADC App Design Company is a software development company that was founded in 2010. Based in Encinitas, Calif., ADC App Design Company's team of 5 employees specialize in mobile app and web development.
Clients
Domino's Tracker App 12 million downloads -
42$1,000+2 - 9 employeesLos Angeles, CASunlight Media LLC, a Market Research company, is located in Los Angeles, California and Santa Monica, California. The small agency was established in 2011. Their services include Market Research, IT managed services, Web Development, Mobile App Development, and more.Read More
Clients
Gary Numan MSA Agency L.A County Atlantic RecordsIndustries
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43$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures is a software development firm. Their small team is located in Irvine, California. The firm specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more.Read More
Industries
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44$10,000+50 - 249 employeesSan Mateo, CAImaga ~ When UX & AI Both Matter is a San Mateo, California-based software development firm. Launched in 2018, the midsize team offers Custom Software Development, Web Development, Mobile App Development, E-Commerce Development, and more.Read More
Clients
Mercedes-Benz DSC Information Technology is a UAE-based IT hardware supplier. Its catalog features 5,700+ SKUs available to customers worldwide Astana Motors is a leading Kazakh automotive company that distributes, manufactures, and sells vehicles. It was established in 1992, is part of the Astana Group holding, and serves as the official distributor for many major car brands like BMW and Toyota XDS-Astana Team. As of Oct 2025, XDS-Astana Team is ranked 4th in the Union Cycliste Internationale WorldTour. The team includes 46 racers from Italy, France, Denmark, and other countriesIndustries
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45$10,000+50 - 249 employeesSan Francisco, CARead More
Founded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development.
Clients
West ElmIndustries
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46$5,000+10 - 49 employeesSan Diego, CARead More
GenAI.Labs USA, an AI development company, is located in San Diego, California. The small agency was launched in 2015. Their team focuses on Artificial Intelligence, Generative AI, Web Development, Mobile App Development, and more.
Clients
ServiceNow UCLA Google GucciIndustries
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47$10,000+50 - 249 employeesSan Luis Obispo, CARead More
Hathway is a mobile app development company that was founded in 2007. They are headquartered in Obispo, Canada and are currently made up of 240 employees. The company specializes in mobile app development, custom software design, and web design and work primarily with large enterprises and midmarket sized firms.
Clients
Applied MaterialsIndustries
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48$50,000+10 - 49 employeesCalabasas, CAAJProTech is a Calabasas, California-based Product Design company. The small firm was launched in 2014. Their services include Product Design, IoT development, Mobile App Development, and AR/VR development.Read More
Clients
USPS Exxon Mobile Huupe Sound OasisIndustries
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49$25,000+10 - 49 employeesLos Angeles, CAWANDR is an user experience agency. Their small team is based in Los Angeles, California. The company focuses on UX/UI Design, Branding, AI Consulting, Web Development, and more. The company was founded in 2016.Read More
Clients
U.S. Air Force WWF Cinépolis GEIndustries
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50$25,000+10 - 49 employeesNewport Beach, CARead More
Revealize Inc. is a web development agency that has been offering web design and web development services to their clients since 2017. Their 10 employees are based out of Newport Beach, Calif.
Clients
SaaStockIndustries
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51$25,000+10 - 49 employeesLos Angeles, CAMobile app development company MetaCTO was founded in 2022. The company provides Mobile App Development, UX/UI Design, Web Development, Business Consulting, and more and has a small team. The company is based in Los Angeles, California.Read More
Industries
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52$10,000+10 - 49 employeesLos Angeles, CARead More
Sunrise Integration is a software development firm. They are located in Los Angeles, California and have a small team. Their team provides custom software development, web development, mobile app development, e-commerce development, and more.
Clients
Live Nation Ferrari Rakuten MarvelIndustries
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53$1,000+50 - 249 employeesSan Jose, CARead More
Gummicube, Inc., a Mobile & App Marketing company, was launched in 2010. They are based in San Jose, California and have a midsize team. Gummicube, Inc. Specializes in Mobile & App Marketing, Mobile App Development, and Digital Strategy.
Industries
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54$50,000+10 - 49 employeesPasadena, CASerious Development is a small software development company founded in 2012. Their services include Custom Software Development, Mobile App Development, BI & big data consulting & SI, and Artificial Intelligence. The company is in Pasadena, California and Houston, Texas.Read More
Clients
Imperial Health CSD MedPoint Global 1Industries
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55$25,000+10 - 49 employeesFremont, CARead More
Founded in 2011, EIGHT25MOBILE is a web design firm based in Fremont, Calif. With a small team of fewer than 5 employees, EIGHT25MOBILE specializes in web design, web development, and digital strategy.The client appreciated EIGHT25MOBILE's flexibility and ability to deliver a customized website.
Clients
Chamba -
56$10,000+50 - 249 employeesSan Jose, CABeehive Software is a software development company. Founded in 2021, the midsize company is based in San Jose, California and Herzliya, Israel. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
Industries
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57$25,000+10 - 49 employeesIrvine, CARead More
Idea Maker is a web development firm. Their small team is based in Irvine, California and Irvine, California and specializes in Web Development, Mobile App Development, Artificial Intelligence, Custom Software Development, and more. The agency was launched in 2016.
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58$10,000+50 - 249 employeesLos Angeles, CARead More
DevTeam.Space is a development agency that was founded in 2015 and is based in Los Angeles. Their team of 8 specialize in web development and mobile app development for small businesses; these clients primarily reside in the advertising, business services, and consumer product industries.
Clients
AirbusIndustries
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59$10,000+10 - 49 employeesSanta Monica, CARead More
Fullsend Solutions Inc. Is a web development company. They offer web development, mobile app development, and ux/ui design and were established in 2019. Their small team is headquartered in Santa Monica, California.
Industries
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60$5,000+10 - 49 employeesDublin, CARead More
Pravaah Consulting Inc is a Dublin, California-based artificial intelligence development company. The small company was launched in 2019. Their team offers Artificial Intelligence, Custom Software Development, Mobile App Development, and E-Commerce Development.
Industries
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