Top 100 Software Development Companies in the United States

Based in Hudson, Ohio, Moreland Connect is a software development firm. Founded in 2002, the small team offers custom software development, mobile app development, application management & support, IT managed services, and more.

Founded in 2010 in Seattle, Billberry is a software development studio creating custom software, web apps, and digital products in partnership with some of the world's biggest brands. They have a veteran team of fewer than 50 strategists, designers, and developers who work in partnership with clients to help them grow, innovate, and move their businesses forward. Clients include businesses of all sizes in various industries, including business services, consumer products and services, and financial services.

Buildable Custom Software is a software development firm founded in 2008. Located in McMinnville, Ore., their team of 9 employees specialize in custom software development, UX/UI design, and web design. They work with small and midmarket businesses within the transportation, education, and health care industries.
 

Simple Thread is a development company that was founded in 2010 in Richmond, Va. It employs a team of 9 who specializes in web development, custom software development, mobile app development, and UX/UI design for mostly mid-sized companies.

XeoDev is full-service agency based in Orlando, Fla. with fewer than 5 employees. XeoDev was founded in 2015 and services startups or businesses with ambitious growth models. XeoDev seeks to provide custom software development, web development, and app development for companies seeking long-term partnerships.

Clustox, a mobile application development firm, was founded in 2012. The small Lahore, Pakistan-based team offers mobile app development, custom software development, web development, cloud consulting & SI, and more.

Custom software development firm Serious Development was founded in 2014. Their small team is based in Pasadena, California and Houston, Texas and focuses on custom software development, mobile app development, web development, web design, and more.

Located just outside Philadelphia, PA, this web and e-commerce development company was founded in 2010 and has been growing ever since. Their results-oriented team provides SEO, consulting, and marketing services to the telecommunications, healthcare, and fintech industries.

Highland is a digital experience agency based in Chicago. Founded in 1999, the team of about 30 specializes in product strategy, UX/UI design, and custom software development. They work primarily with midmarket to enterprise clients, mainly in the healthcare, financial services, and nonprofit sectors.
 

Launched in 2016, 64 Robots is a website development company. They are headquartered in Baltimore, Maryland and have a small team. Their services include web development, mobile app development, and web design.

RoleModel Software is a custom software development agency with headquarters in Holly Springs, N.C., and an office in Rochester, N.Y. Since 1997, their team of 18 has assisted in providing web development, web design, and mobile app development expertise to a wide range of clients in industries such as manufacturing, business services, and health care.

Application development company and web development company AppVerticals LLC was established in 2016. The agency provides mobile app development and web development and has a small team. The agency is located in Trophy Club, Texas and Southlake, Texas.

The Smyth Group is a digital agency founded in San Diego in 2005. Their team of more than 10 specializes in UX/UI design, custom software development, and web development solutions for mid-market and enterprise-level clients.

Based just outside Boston, MA, Boston Technology Corporation is a leader in mobile, web, and cloud-based app development. Since starting in 2004, BTC has expanded to almost 100 employees.

Revelry Labs is a software development company founded in 2012. The team of 34 employees works in two locations, New Orleans and Chicago, focusing on web development, custom software development, mobile app development, IT staff augmentation, and UX/UI design. 

Maxiom Technology is a professional software development and consulting company based in Ashburn, Va. that works with primarily midmarket businesses. Established in 2002, the company focuses on custom software development, UX/UI design, and enterprise app modernization. Maxiom Technology has 9 employees. 

Blackburn Labs is an app development company based in Providence R.I. and founded in 2015. Their team of 2 employees specializes in custom software development, mobile app development, and enterprise app modernization for clients of all sizes in the healthcare, real estate, and marketing industries.

Caxy Interactive is a web design and development agency located in Chicago, IL. Since 1999, the agency and its team of 10+ specialize in creating better digital experiences for their clients through web development, software development, and enterprise content management services. 

KitelyTech is a full-service technology, design, and development company that's been around since 2009. Headquartered in Chicago, IL, the company is composed of about 10 employees who are skilled in web, software, mobile app, and e-commerce development. Other services include web design and user experience design and SEO.

Founded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.

Headquartered in Columbia, Missouri, Delta Systems Group is a small SEO agency. They provide search engine optimization, web design, and web development and were established in 1986.

Branger_Briz, a custom software development company, is located in Miami, Florida. They provide custom software development, mobile app development, e-commerce development, and other application development and were established in 2006.

Grape Up is a tech consulting company based in Cracow, Poland with no more than 250 employees. Founded in 2006, they provide custom software development, cloud consulting, and IT staff augmentation services for enterprise-level and mid-market clients alike.

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.

Sidebench is a strategy, design, and development consultancy with a team of 70+ experts headquartered in Los Angeles. Founded in 2012, Sidebench caters to enterprise companies and new ventures seeking the management consultants & experienced founders, the technical chops of systems architects, and a UX-first approach. Sidebench provides app and web development, UX/UI design, web design, and app testing via a fully integrated product delivery team.

Method is a strategic design firm based in New York with offices in London; Denver; Atlanta; Charlotte, N.C.; and San Jose, Calif. The firm, founded in 1999, has more than 130 employees and provides UX/UI design, custom software development, digital strategy, web development, and branding services. Method serves enterprise and mid-market companies in the financial services, IT, arts & entertainment, customer products & services, medical, and e-commerce industries.

Woodridge Software is a custom software development agency located in Denver, Colo. Founded in 2012, they have 20 employees specializing in building custom web and mobile applications for businesses ranging from startups to Fortune 500 companies. Services include UX and UI design and the development of software, and web and mobile applications.

Admios Nearshore Software Development is an IT staff augmentation company. They are based in Panama City, Panama; San Francisco, California and San Luis, Chile and have a midsize team that specializes in IT staff augmentation, custom software development, e-commerce development, and IT managed services. The company was launched in 2005.

Frogslayer is a software development company founded in 2005 and located in College Station, Texas. They have a team of about 50 individuals who offer custom software, web, and mobile app development services. Their clientele comprises midmarket businesses in the financial services, legal, education, and healthcare and medical industries.

Tandem (formerly DevMynd) is a strategy, design, and technology company headquartered in Chicago. The company was founded in 2010 and has 37 employees. They work with both mid-market and enterprise businesses. The businesses they work with represent a variety of industries including health care and medical, education, and energy and natural resources.