Top 100 Software Development Companies in the United States

Eureka is a custom software and technology engineering firm based in Austin, Texas. Founded in 1986, Eureka's has about 20 employees that primarily focus on midmarket businesses in the telecommunications sector. Services include custom software, mobile app development, and UX/UI design.

A tech frontrunner since 1989, Zco is a full-stack app development firm offering web, mobile, and animation services. Headquartered in Nashua, New Hampshire with a Boston office, the 200+ specialists comprise a powerhouse team with outstanding and varied proficiencies.

Kingsmen Digital Ventures is a custom software development firm established in 2017. Their small team is based in Irvine, California and provides custom software development, ux/ui design, mobile app development, and web development.

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.

Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.

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.
 

X-Team is a Melbourne, Australia-based IT staff augmentation company. The midsize company was founded in 2004. Their team offers IT staff augmentation.

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.

Vincit California is a software development company that has provided mobile app development, custom software development, and UX/UI design services to their clients since 2007. Their team of 1,000 employees is based out of Irvine, Calif. With another office in Helsinki.

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.

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.

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.

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.

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.

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.

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.