Top 100 iPhone Applications Development Companies in the United States

Mystic Media is a mobile app and software development agency based in Murray, Utah. The agency, founded in 2001, has more than 50 employees and provides mobile app development, custom software development, and web development services to small and larger-sized companies and institutions in various industries that include business services, gaming, and health care & medical. 

Launched in 2003, Trango Tech is a. The midsize team specializes in. The company is based in San Jose, California and Salt Lake City, Utah.

HashOne Creatives, an application development company, is in Karachi, Pakistan. The firm specializes in mobile app development, web design, web development, custom software development, and more and has a midsize team.The firm was established in 2015.

IT Creative Labs is an IT consulting and digital agency headquartered in New York. They have about 2 employees. Since 2016, they have provided web development, mobile application development, and e-mail marketing services to primarily enterprise clients in the advertising and marketing industry.

Located in Oviedo, Florida and Orlando, Florida, Informulate is a software development company. They specialize in custom software development, web development, mobile app development, IT strategy consulting, and more and were established in 2006.

Black Flag Creative is a web and mobile app agency of 7 employees. Founded in 2016, their headquarters is in Sacramento, Calif. They offer web design, web development, mobile app development, UX/UI design, and branding. They primarily serve small and midmarket businesses in various industries: real estate, healthcare, manufacturing, e-commerce, and entertainment.

Tech Reforms is a branding company. They provide branding, web design, ux/ui design, logo, and more and were founded in 2017. The company is headquartered in Los Angeles, California.

Punchkick Interactive is a digital development agency in Chicago that was founded in 2006. It has more than 30 employees and specializes in custom software development, UX/UI design, and mobile app development for enterprise and midmarket clients.

Founded in 2005, Invemo is a tech company headquartered in Santa Monica with another location in IST, Turkey. Their team of 4 provide mobile app development, UX/UI design, IT strategy, and app modernization services to clients.

Rocket Farm Studios is a mobile app and custom software developer based in Boston, MA. Begun in 2008, their team of 10+ excels in mobile strategy, IoT, and digital product innovation for businesses of all sizes.

FROM is a midsize user experience agency. Headquartered in New York, New York, the company was launched in 2016. Their team provides ux/ui design, mobile app development, search engine optimization, web design, and more.

Moonstone Interactive is a digital agency based in San Ramon, CA. Founded in 1996, Moonstone Interactive's team has grown to more than 10 employees. The digital agency provides a variety of different services such as e-commerce development, web design, and SEO, but specializes in web development capabilities.

Founded in 2012, Tepia Co is a mobile and web app development collective established in Costa Mesa, CA. This 2+ team offers 30+ years of tech expertise and experience in digital solutions.

Los Angeles, CA-based digital agency ISBX has been building mobile apps for its customers since 2009. ISBX has a mid-size team that offers a comprehensive slate of services, including user experience (UX) design, mobile and web development, creative branding, and marketing.The CTO went on to say that they appreciated that ISBX was understanding, responsive, and easy to communicate with.

NS804 is a software development firm founded in 2012. Their team consists of 11 employees, and they have offices in Richmond, Va. The firm specializes in mobile app development, UX/UI design, and custom software development for a variety of industries.

Tack Mobile is a software development agency based in Denver, CO. The team of about 20 offers custom software, web, mobile app, and IoT development, as well as enterprise app modernization and UX/UI design. They serve mostly mid-market and enterprise clients.

noformat is a strategic design agency based in New York City. The agency, founded in 2001, has a team of more than 15 that provides web design, UX/UI design, web development, mobile app development, graphic design, logo, print design, and packaging design services. noformat serves mid-market and other-sized companies in various industries that include advertising & marketing, arts & entertainment, and business services.

JumpGrowth, a mobile app development firm, is in Dallas, Texas; New York, New York and Austin, Texas. The midsize team specializes in mobile app development, custom software development, enterprise app modernization, AR/VR development, and more. The company was founded in 2018.

Purplegator is a marketing and advertising firm that has offices in King of Prussia, Pa., Des Moines, Iowa, and Haleiwa, Hawaii. Founded in 1989, Purplegator's team of 9 employees has nearly three decades of experience specializing in web design and development, and SEO.  Purplegator primarily works with small to mid-market clients from the consumer products, business services, and entertainment industries. 

Flatirons Development is a UX/UI product design and software development consultancy, founded in 2018. They employ seven staff in their office in Boulder, Colo., where they focus primarily on product management and strategy, UI and UX design, web development, and native mobile app development. They work with a range of small, midmarket and global companies.

NEXT/NOW is a Chicago-based creative technology agency founded in 2011. The team of around 20 pride themselves on creating digital brand experiences for physical spaces through AR/VR development, marketing services, and custom software development. 

SEP is a software company founded in Carmel, Ind. in 1998. Their team of over 50 specializes in custom software, web, and mobile app development solutions for clients ranging from small companies to large firms in the industries of consumer products, healthcare, and business services.

Motomtech, a custom software development company, was founded in 2021. They are headquartered in Salt Lake City, Utah and have a midsize team. Their services include custom software development, web development, mobile app development, marketing strategy, and more.

3Advance is a Washington, D.C.-based app development company with a major focus on user experience. Since 2010, they have developed applications for startups, nonprofits, and other businesses. Their team of 13 has experience across many industries, including sports and fitness, food-ordering, and healthcare. They also provide Cloud (APIs, AWS, Azure) and Data Science (AI, machine learning) consulting that allows businesses to future-proof and scale.

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. 

Founded in 2018, Materialize is a development firm. Their team of around 5 employees is based in Los Angeles. They focus on web development, UI/UX design, and custom software development.

CC Capital Group is an outsourcing agency based in La Jolla, Calif with a team of 25. Founded in 2012, the company offers direct marketing, business consulting, and HR services. Their direct marketing services are focused on telemarketing, among other forms.

C7 Creative is a development firm based in Jacksonville, Florida. Their services include mobile app development, web design, and video production. Established in 2009, the 10-person team works primarily with small and midmarket businesses.

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.

Located in American Fork, Utah, Ravn is a midsize mobile app development firm. Their services include mobile app development, web development, and ux/ui design.