Top 100 Application Modernization Companies in the United States

Located in New York City, Lightmatter is an agency offering web and mobile app development, design, and other digital services. Their team of under 50 employees serves mostly enterprise businesses in industries like financial services, gaming, and healthcare. They were founded in 2013.

Alligatortek is a software company headquartered in Chicago with an office in Oakbrook Terrace, Ill. Since 1993, their team of 59 has lent its services in custom software development, mobile app development, and cloud consulting & SI. They specialize in Azure, and have experience in working with frameworks such as .NET, AngularJS, and React Native.

Shift3 Technologies is a software-development-as-a-service firm based out of Fresno, Calif. Founded in 2013, the team of 65+ specializes in custom software, web, and mobile app development as well as enterprise system modernization and integration to help its small to mid-market clients achieve their goals. 

Located in Portland, Ore., AltSource Software is a technology consultancy and development house with a team of over 150. Since 2004, they've specialized in custom software development as well as enterprise app modernization, working primarily with midmarket businesses and enterprises.

Martian Craft is a user experience design company established in 2010. The company provides ux/ui design, cloud consulting & SI, custom software development, web development, and more and has a midsize team.

Software development firm Cygnet.One was established in 2000. The agency offers Custom Software Development, IT staff augmentation, Product Design, cloud consulting & SI, and more and has a large team. The agency is based in Princeton, New Jersey; Ahmedabad, India; Dubai, United Arab Emirates and Cape Town, South Africa.

Optimum is a digital marketing firm based in Houston. Since 2014, the small team of 3+ has specialized in web development, IT consulting, e-commerce development, email marketing, and mobile app development.

Epicenter Consulting is a web and mobile development company based in New York, with an additional location in Houston. Founded in 2008, this company has 15 employees. Services provided by Epicenter Consulting include custom software development, enterprise app modernization, and UI/UX design for businesses of all sizes.

BlueFletch is a mobile development agency based in Atlanta founded in 2008. Their team of 38 experts specializes in mobile app development, custom software development, and enterprise app modernization for midmarket and large firms. They have experience working in the industries of retail, transportation, and consumer products & services, among others.

Since 2014 web and mobile app development agency LakeView Labs has served clients ranging from startups to Fortune 500 companies. The small team of fewer than 10 applies its skill in mobile app, software, web, and e-commerce development to help these clients build engaging digital products.

This Orlando, Fla. app development agency was founded in 2008. Echo Interaction Group has about 10 team members who specialize in various technological practices such as enterprise app modernization, wearables development, hardware integration, marketing, and UX/UI design. 

Fulcrum Dynamic is a small IT strategy consulting company located in Round Rock, Texas. The team provides IT strategy consulting, custom software development, web development, and mobile app development.

Freelock LLC is a Seattle-based internet and web design firm that was founded in 2002. Freelock LLC's team of 5 employees works mainly with small- and mid-market sized clients but has experience working with large corporations as well. The firm specializes in web and UI/UX design along with e-commerce development. 

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.

Company A is a custom application development company based in Irvine, Calif., with offices in Plano, Texas, and Novi Sad, Serbia. The company, founded in 2015, has a team of more than ten that provides cloud consulting & SI, custom software development, web development, mobile app development, and enterprise app modernization services. Company A serves small and larger-sized companies in various industries, including IT, financial services, and health care & medical.

Ksense Technologies LLC is a small website development company. The Murray, Utah-based agency was launched in 2017. Their services include web development and mobile app development.

Stride is a New York City-based software development company that embraces agile development practices. Founded in 2014, Stride has proven itself as product development experts, with experience with software, websites, e-commerce, mobile apps, and IoT.

WeGotCode.com is a UX specialty company based in Atlanta. Founded in 2016, their team of two employees provide custom software development, UX design and cloud consulting services.

New Leaders is a technical services firm of 29 employees, established in 2007. They are headquartered in Truckee, Calif., with a second office in Beijing, China. They offer custom software development, e-commerce development, and UX/UI design. They primarily serve clients in midmarket and small businesses in the healthcare, business, and consumer products industries.

QuarkWorks is a development agency located in San Francisco. Since 2011, their team of 15 has been specializing in mobile app development, web development, product design, and more for enterprise and midmarket-level clients. 

Calibec is a small custom software development firm. Founded in 2021, the team offers custom software development, web development, mobile app development, enterprise app modernization, and more. The agency is located in Mission Viejo, California.

InnoviMobile is an app development agency located in New Jersey with additional offices in Toronto, Canada and New York, NY. The team of fewer than 50 employees has been developing apps for mid-market and enterprise businesses since 2007.

Hoff & Mazor is a midsize application development firm. They provide mobile app development, enterprise app modernization, wearable app development, and other application development and were established in 2015. The firm is headquartered in Casper, Wyoming.

IQuasar LLC is a Sterling, Virginia-based custom software development firm. They offer custom software development, cloud consulting & SI, and IT managed services and were established in 2004.

Software development firm Espresso Moon was established in 2004. Their small team is in Houston, Texas. Their services include custom software development, mobile app development, web design, and IT managed services.

Prestige Development Group is an IT staff augmentation company based in Sacramento, California. The small firm was launched in 2016. Their team specializes in IT staff augmentation, custom software development, mobile app development, and blockchain.

Sparkbox is a web design and development company based in Dayton, Ohio, with a satellite office in Pittsburgh. Founded in 2009, Sparkbox's team of 38 employees provides web design and development, e-commerce development, custom software development, and UX/UI design services for mainly midmarket businesses.

Deyo Group, Inc. Is a software development firm. They are headquartered in Wylie, Texas and have a small team. Their services include custom software development, web development, mobile app development, e-commerce development, and more.

2am.tech, a software development firm, was launched in 2013. The midsize team focuses on custom software development, web development, mobile app development, e-commerce development, and more. The firm is based in Miami Gardens, Florida.

Founded in 2014, OpenForge is a development and design company. Located in Philadelphia, their team of 15+ specializes in mobile app development and UX/UI design for clients in the healthcare industry.