Top 10 Mobile App Development Companies in California

From food ordering and fitness tracking to car purchasing and dating, it might seem as if there’s a mobile app for everything already.

And why shouldn’t there be? According to Statista, the number of mobile app downloads in 2017 hit 197 billion and is projected to increase to 352.9 billion in 2021.

Along with the rise in demand for native mobile applications, there are now literally more than 10,000 mobile app development companies worldwide, all vying to help with your mobile app project.

How do you sift through the clutter and identify proven companies that can truly bring your dream app to life?

California is a great place to begin your search. Home to some of the world’s most innovative tech companies — Apple, Tesla, and Google, for example — the Golden State is also where many of the world’s top mobile app development companies are based.

Here’s our list of the top ten mobile app development companies headquartered in California.

#1 CitrusBits

Los Angeles & San Francisco, CA | Founded in 2005

Founded in 2005, CitrusBits thrives at the intersection of user-focused design, mobile app development, digital strategy, and emerging technologies. One way in which the CitrusBits team stands apart from other agencies is its thorough Discovery phase, which helps ensure rapid yet accurate execution on subsequent design and development work.

Additionally, CitrusBits is one of just a few mobile app agencies with capabilities in emerging technologies such as Artificial Intelligence (AI), Augmented Reality and Virtual Reality (AR/VR), blockchain, and the Internet of Things (IoT). Their wide spectrum of technical capabilities allows CitrusBits to build uniquely disruptive and future-proof apps on behalf of their clients.

Their award-winning results don’t come about by chance; CitrusBits is made up of a diverse team of 70 in-house strategists, futurists, designers, and developers — cultivating freshness in ideas, approach, and products. With world-class technical expertise and a steadfast commitment to customer service, this company has produced more than 300 apps that customers and end users love.

Top Clients include Harman (Samsung), Burger King, Quiksilver, Symantec, and Sotheby’s


#2 ArcTouch

San Francisco, CA | Founded in 2007

Since January 2016, ArcTouch operates as a subsidiary of Grey Global Group, Inc.

ArcTouch is an award-winning mobile app development and design company that focuses on building connections in person and through their products. They create custom iOS, Android, and Xamarin apps, voice apps, and AI bots for conversational platforms such as Amazon Alexa and Facebook Messenger. In addition, they specialize in experience design, accelerated product development, rapid prototyping and proof of concept (PoC) projects, and more.

In fewer than ten years of operation, ArcTouch has already grown to more than 150 employees who have participated in the development of over 400 mobile apps and connected experiences. ArcTouch also incorporates their clients in their work so that both sides can monitor and contribute to the app development process.

Top Clients include Audi, Guess, Walmart, Salesforce, and Yahoo


#3 Ramotion

San Francisco, CA | Founded in 2009

According to Ramotion, this agency is the #1 contributor of Swift on GitHub, a top three design team on Dribble, and the top UX/UI and Web team on Behance.

This UI/UX design and branding agency is a team of multidisciplinary product design and development experts who focus on interface design, branding, and development. Because they are a small studio, Ramotion works with a few clients at a time to ensure that each client receives the attention they deserve. Through the years, Ramotion has been able to successfully implement and deliver more than 200 projects, including full-stack solutions and individual mobile/web design projects.

“We believe design is a process. We form one team with our clients. We prototype and iterate.”

This statement shows in Ramotion’s work, as they have made their mark through exceptional collaboration, helping customers extend their product design vision and formulate new solutions for business challenges.

Top Clients include Advanced Auto Parts, Tile, Bitmoji, Truebill, and Opera


#4 Raizlabs

Oakland & San Francisco, CA | Founded in 2003

In May 2016, Google announced that Raizlabs was accepted as a Google Certified Agency.

Raizlabs, a Rightpoint company, prides itself in bringing together the best customer experience talent to engage clients in providing efficient solutions. They specialize in developing custom iOS and Android apps, web platforms, and other cutting-edge software.

Together with their Rightpoint teammates, Raizlabs is made up of 450 employees across 10 offices who work to grow and maintain a transparent collaboration that extends beyond a product launch date. This company also strives to incorporate emerging technology in their work, such as VR/AR, IoT, Amazon Echo App Development, and more, in order to provide a competitive and unique edge to each project. Driven by excellence, initiative, impact, and teamwork, Raizlabs creates digital experiences to evolve the way their clients do business.

Top Clients include SixFlags, Rue La La, Perkins School for the Blind, RunKeeper, and AAA


#5 Infinum

San Francisco, CA | Founded in 2005

Infinum is an independent design and development agency that develops and designs softwares for mobile and web. They specialize in UX/UI design, Android and iOS development, web development, IoT, Cloud services, DevOps, software testing, and QA. This agency strives to build software that makes businesses more efficient while making customers’ lives easier. Infinum provides a full-service approach across all phases of software development, including creative concept development, planning, graphic design, and development.

With four offices, Infinum is 145 employees strong, many of whom are young, “appreciate humor, music, quality code, beautiful design and a friendly work atmosphere.” In collaboration with their clients, the Infinum team designs products with end users in mind, bringing written code to life. The Infinum process is designed to ensure that right product is built for the right audience.

Top Clients include Royal Caribbean, P&G, Samsung, Ferrero, and Erste Bank


#6 Impekable

San Francisco & San Jose, CA | Founded in 2012

Impekable is a full service digital studio that focuses on helping organizations build memorable and human-centric mobile and web experiences. They specialize in UX/UI design, mobile app and web development, MVP development, enterprise web application development, and rapid prototyping, while also incorporating emerging technology and functionality such as drones, IoT, and e-commerce when possible.

Impekable believes in going the extra mile for clients. They strive to create quality design and development to help clients achieve their goals. Through the years, they’ve helped clients achieve worldwide recognition and mentions through awards and large publications.

Most impressive of all, Impekable is able to accomplish all this with a relatively small but diverse team of creative individuals. With unique outlooks and knowledge, Impekable employees are able to collaborate effectively with one another to craft user experiences that resonate with end users.

Top Clients include Netgear, HP, Google, Marquee, and Accenture


#7 Sidebench

Culver City, CA | Founded in 2012

Sidebench is a consultancy studio that has become known for its strategy, design, and development expertise. Sidebench focus on user experience, business strategy, systems integration, user research, creative design, and engineering. With extensive knowledge and expertise, the Sidebench team is able to provide strategic, enterprise-level management and help companies understand the technical chops of systems integration consulting. Combine that with a UX-first approach, and it’s no wonder that Sidebench is considered by some to be one of the best digital product teams in the world.

Sidebench is a small team comprised of proud technologists and creative innovators that track solutions for big challenges. Through innovation drive and sustainable growth, Sidebench is able to engage in long term partnerships with companies that range from start-ups to large enterprises.

Top Clients include RedBull, Pabst Blue Ribbon, Inland Empire Health Plan, Sony Pictures, and Facebook


#8 Swenson He

Marina del Rey, CA | Founded in 2014

Fairly new to the scene, software consulting firm Swenson He has been able to grow rapidly with its “never outsourced” approach to software creation. Swenson He specializes in iOS and Android mobile app development and web development, including Java and e-commerce.

According to Swenson He, a key to their success is their engineering approach; their engineers tackle each step in a build as an individual problem, focusing on design, precision and efficiency. As a firm, they have institutionalized a ‘final 1% method,’ whereby engineers continually ask themselves what more they can possible do to ensure maximum results. With this innovative strategy, Swenson He is able to deliver both quality and sophistication.

Top Clients include Stanford Medicine, simplehuman, Scott’s Miracle-Gro, ACTually, and chemoWave


#9 Dogtown Media

Venice Beach & San Francisco, CA | Founded in 2011

Dogtown Media is a mobile app development and tech company that develops mobile solutions to solve everyday problems, innovating and pushing the boundaries of technology. They specialize in mobile app and web development, as well as UX/UI design. Additionally, they are continually extending their design and development capabilities with forays in artificial intelligence, augmented reality, IoT, and other emerging technologies.

This company consists of mobile experts who are familiar with the ‘twists and turns’ of app development. Their expertise allows Dogtown Media to quickly design, program, and deploy applications to the iTunes App Store and the Google Play store. Their promise is “if you can dream it, we can build it” — Dogtown Media balances both art and engineering to execute mobile solutions for Android and iOS.

Top Clients include United Nations, Lexus, Citi Bank, YouTube, and


#10 ISBX

Los Angeles, CA | Founded in 2009

ISBX is an award-winning digital agency that builds apps for retail, entertainment, and consumer electronic companies, representing clients in four countries. Their specialties include mobile app and website design and development, web-based business solutions, and search engine marketing. This company uses the latest technology to deliver messages across all digital mediums, incorporating a little bit of themselves in everything they do.

The ISBX team consists of project managers, web/mobile developers, graphic designers, and solution architects. They interact with clients throughout an engagement, collaborating on key decisions and recommendations to give every app or website the best possible chance to succeed. To ensure client preferences are delivered upon, the company follows a software development framework called Scrum, which splits up the project tasks into various sprints that allow both the client and development team to deliver completed units of work in a shortened time frame. This allows ISBX to better define goals, construct effective strategies, build user friendly mobile apps, and design responsive websites and media that resonate with their target audiences.

Top Clients include Beats Electronics, Apple, Nike Air Jordan, Direct Dermatology, and Clapit.


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