Top 100 Cross Platform App Developers in San Francisco

ArcTouch was founded in 2008 and has offices in San Francisco, Calif., New York, and Florianópolis, Brazil. They excel at app development, blockchain, and UX/UI design. They guide their enterprise clients through the app building process by defining a strategy for the best user experience, planning the visual design, developing and testing the prototype, and ensuring optimization and growth.

Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

TekRevol is an app development startup of 18 employees. Founded in 2014, their headquarters is in Newark, Calif. They offer various services: mobile app development, web development, e-commerce development, blockchain, and more. They primarily work with enterprise and midmarket clients in the e-commerce and business services industries.
 

With offices in San Francisco and development centers across Latin America and the U.S., BairesDev provides end-to-end delivery for its clients. Founded in 2009, their team of over 3,000 seasoned engineers provides web and software development services in addition to managed IT support, staff augmentation, and application testing.

Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.

AGIMA is a mobile app development company. The midsize Istanbul, Turkey-based company was established in 2005. Their team focuses on mobile app development and web development.

Techlexity is a small custom software development firm. Located in L'viv, Ukraine and Los Angeles, Glendale, California, the agency was founded in 2019. Their services include custom software development, web development, mobile app development, blockchain, and more.

Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.

Midsize website development company Cheetah Agency, is based in Dallas, Texas; Doylestown, Pennsylvania; Atlanta, Georgia and Austin, Texas. Established in 2006, the team specializes in web development, search engine optimization, marketing strategy, social media marketing, and more.

Founded in 2015, Geekbears is a Web and Mobile Design & Development company based in California. They have served 200+ customers, and the list is growing. They worked with clients like Samsung, Harvard, and Indeed. From ideation to launching a digital product, Geekbears walk its clients through the entire process. Their main focus is to help businesses create stunning web and mobile applications to help make the world a more productive one.

Launched in 2020, Apex Lab is a software development company. Their small team is based in Tallinn, Estonia and San Francisco, California. Their team offers custom software development, mobile app development, web development, and enterprise app modernization.

Swenson He is a mobile app development company headquartered in Marina del Rey, CA. Founded by two MIT alumni, the team of now 20+ engineers specializes in mobile app development and UX/UI design for iOS, Android, and hybrid mobile platforms.

eTeam is a digital product agency founded in 2016 with a team operating in over 15 countries. Our services cater to a broad range of businesses, from VC-backed startups to the largest company in the world. eTeam excels in various fields, including Product Discovery, Web and Mobile Development, Software Transformation, Cloud & DevOps Solutions, Big Data/AI, and Tech Consulting. 

Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.

Founded in 2009, MindK is a software development company that specializes in web, custom software, and mobile app development. Their team of 56 employees, based in San Francisco, partners with small business and midmarket clients in the financial services, advertising, and media industries.

ThirstySprout is an outsourced development company headquartered in Seattle with an additional office in San Franciso. Founded in 2017, they currently have about 18 employees. They provide IT staff augmentation as well as custom software and web development services to primarily midmarket agencies in IT, e-commerce, and business services.

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. 

Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

Sudolabs is a digital product-building agency based in Košice, Slovakia with more than 90 employees. Since its founding in 2018, they have provided product management services and mobile/web app development solutions for small and mid-market companies across various industries.

WLCM App Studio is a software development firm launched in 2011. The small San Francisco, California-based team specializes in custom software development, mobile app development, ux/ui design, application testing, and more.

Founded in 2018, Aphelia Innovations is a mobile application development company. Their small team is based in New Delhi, India. Their services include mobile app development, IT staff augmentation, and web development.

EffectiveSoft is a software development company with more than 20 years of professional experience and 300+ employees. Their key competence in recent years has been dedicated to fintech and healthcare. They are headquartered in San Diego and have offices in London, West Burlington, Mass., and Minsk, from which they offer both a local and offshore presence. 

Founded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields. 

Roonyx is a web, mobile app, and AI development company founded in 2008 that caters their services to small business and midmarket clients. They have a team of nearly 30 employees who provide services from Moscow and Boston. They focus on the business services, automotive, and e-commerce industries.

App development company BinStellar Technologies Pvt. Ltd. Was founded in 2018. The firm offers mobile app development, web development, and branding and has a small team.

NG Logic is a software company headquartered in Warsaw, Poland that specializes in mobile app and web development. Founded in 2003, the company has an additional office in Austin, Texas and has over 50 employees. 

UPQODE is a website design and development agency based in Nashville, Tennessee. Founded in 2015, the team of 40+ specializes in web development, web design, and e-commerce development. They work with small businesses, focusing on information technology, e-commerce, and business services.

ERP consulting and SI company Folio3 is located in Belmont, California; Pleasanton, California; North Sydney, Australia and Dubai, United Arab Emirates. Established in 2005, the midsize team focuses on ERP consulting and SI, mobile app development, web development, custom software development, and more.

Founded in 2000, Blink UX has almost 20 years of experience in the IT sector. True to their name, Blink UX specializes in UX/UI design but also offers mobile and web development, research, strategy, and design services.

Kwanso LLC is a design and development agency headquartered in San Francisco. Founded in 2012, their team of fewer than 50 employees serves mostly midmarket businesses in the IT, media, and advertising and marketing industries. Services include mobile app, custom software, and web development.