Top 100 Application Modernization Companies in the United States
The Best of December 2025Looking for a top legacy modernization service in the United States?
Application modernization companies can help create new business value from existing applications. Finding the right company to partner with, however, can be an overwhelming process.
To assist you in your search for a partner, we’ve compiled this list of the top application modernization services in United States. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United States Enterprise Application Modernization Services
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91$5,000+10 - 49 employeesSalt Lake City, UTRead More
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.
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92$25,000+250 - 999 employeesChicago, ILApp development company Build BetterApp | Chicago’s Top Mobile App Development Company was launched in 2020. The midsize Chicago, Illinois-based team provides Mobile App Development, Enterprise App Modernization, and Low/No Code Development.Read More
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93$10,000+10 - 49 employeesMillburn, NJRead More
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.
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SONIFI SolutionsIndustries
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94$25,000+2 - 9 employeesOrlando, FLRead More
Grata Software is a software consultancy and development firm headquartered in Orlando, Fla. that specializes in custom software development, mobile app development, IT strategy consulting, cloud consulting, and enterprise app modernization. Founded in 2012, the firm's team of 6 works with small businesses, enterprises, and middle-market companies across industries such as business services, healthcare and medical, hospitality and leisure, and real estate.
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Walt Disney CompanyIndustries
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95$50,000+10 - 49 employeesPhiladelphia, PARead More
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.
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Medical Mutual of OhioIndustries
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96$10,000+10 - 49 employeesSacramento, CARead More
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.
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Capital OneIndustries
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97$25,000+10 - 49 employeesWylie, TXDeyo 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.Read More
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98$1,000+2 - 9 employeesMemphis, TNRead More
Wintellisys, Inc is an IT company from Memphis, Tennessee. Founded in 2007, they’re experienced in IT managed service, IT strategy consulting, and cloud consulting and SI. They have 7 employees.
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Newberry TanksIndustries
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99$25,000+10 - 49 employeesRiverwoods, ILRead More
Insyte Consultancy Services is a software company of around 10 employees. Established in 2011, their headquarters is in Oak Park, Ill. They offer services in mobile app development, wearable app development, custom software development, and enterprise app modernization.
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TaxBuddy AppIndustries
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100$25,000+10 - 49 employeesChicago, ILTwinCore is a cloud consulting & SI company based in Chicago, Illinois. The small firm was founded in 2011. Their services include cloud consulting & SI, CRM consulting and SI, Custom Software Development, Web Development, and more.Read More
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n-treeIndustries
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101$50,000+10 - 49 employeesDenver, COEnterprise App Modernization company DevIQ was launched in 2018. The firm specializes in Enterprise App Modernization, Digital Strategy, Artificial Intelligence, and AI Agents and has a small team.Read More
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102$250,000+10 - 49 employeesOklahoma City, OKRead More
Phase 2 is a custom software development company based in Oklahoma City. Founded in 1998, they have 50 employees, and focus primarily on the business services, transportation, energy and natural resources, manufacturing, and hospitality and leisure industries. Their services include mobile app development, custom software development, and enterprise app modernization.
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Sonic Drive-InIndustries
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103$25,000+10 - 49 employeesSchaumburg, ILRead More
Captivix, an IT strategy consulting company, was established in 2011. The small Schaumburg, Illinois-based team focuses on IT strategy consulting, ERP consulting and SI, custom software development, digital strategy, and more.
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104$25,000+10 - 49 employeesSt. Louis, MORead More
Tuva Interactive is a full-service internet development company from St. Louis. The company was founded in 1996 and currently has a team of 10 employees. Tuva Interactive provides custom software development, web development, and IT strategy consulting.
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FORO Sports ClubIndustries
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105Undisclosed50 - 249 employeesCockeysville, MDRead More
Marketing strategy company RDA was founded in 1988. The agency specializes in marketing strategy, CRM consulting and SI, web development, e-commerce development, and more and has a midsize team. The agency is located in Cockeysville, Maryland.
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106$50,000+10 - 49 employeesBirmingham, ALSigao, a custom software development company, was launched in 2016. In Birmingham, Alabama, their small team offers Custom Software Development, Corporate Training & Coaching, Enterprise App Modernization, CRM consulting and SI, and more.Read More
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McLeod SoftwareIndustries
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107$25,000+50 - 249 employeesRichmond, VAUDig, a software development firm, was established in 2001. They focuses on Custom Software Development and Product Design.Read More
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108$5,000+50 - 249 employeesTroy, MISoftware development firm One Team US LLC was launched in 2010. Their midsize team is located in Troy, Michigan and focuses on Custom Software Development, Web Development, Mobile App Development, IT strategy consulting, and more.Read More
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GOAT Pet Products Michigan Die Cut Manufacturing Health Device Manufacturing Flooring CompanyIndustries
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109$5,000+10 - 49 employeesVienna, VAAtigro, a small Enterprise App Modernization company, is headquartered in Vienna, Virginia. Established in 2003, the team provides Enterprise App Modernization, Web Development, Artificial Intelligence, AI Agents, and more.Read More
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Payroll NetworkIndustries
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110$50,000+10 - 49 employeesNew York, NYRead More
Blenderbox is a digital agency based in New York and established in 1999. Their team of 24 employees focus on web development, UX/UI design, and web design for primarily small businesses and nonprofits.
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NYC Office of Technology and Innovation - OTIIndustries
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111$25,000+10 - 49 employeesTroy, NYRead More
Gavant Software is a full-service application developer founded in 2002 run by a team of 18. Based in Troy, N.Y., the company offers services in enterprise app modernization, web development, and custom software development. They primarily use .NET and are proficient in languages such as C#, Java, and PHP.
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112$100,000+10 - 49 employeesNew York, NYRead More
Rose Digital is a technology consulting firm based in New York City. Founded in 2014, their small team of 5 specializes in mobile app development, web development, and AI. They work with midmarkets, enterprises, and small businesses, focusing on advertising and marketing, business services, arts, entertainment, and music.
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Annex88Industries
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113$1,000+10 - 49 employeesPlano, TXRead More
D3V Technology Solutions is a cloud-based solutions provider based in Plano, Texas with fewer than 10 members. Since their founding in 2011, they have provided big data consulting, cloud consulting, and enterprise app modernization solutions for clients ranging from startups to enterprises.
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BLI Rentals, LLCIndustries
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114$25,000+50 - 249 employeesNorcross, GAThis Dot is a software development company. The midsize Norcross, Georgia-based agency was established in 2016. Their team offers custom software development, web development, enterprise app modernization, e-commerce development, and more.Read More
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115$10,000+10 - 49 employeesRoswell, GASentry IT, LLC is an IT strategy consulting company headquartered in Roswell, Georgia. The small agency was established in 2017. Their team focuses on IT strategy consulting, IT managed services, enterprise app modernization, cybersecurity, and more.Read More
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116$1,000+2 - 9 employeesLos Angeles, CARead More
Themis Web Technologies is a software development company based in Los Angeles, California. Founded in 2007, they are a sole proprietorship that provides web development, e-commerce development, custom software development, and enterprise app modernization.
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Incited MediaIndustries
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117$10,000+50 - 249 employeesBellevue, WARead More
Virtuosity Consulting, a custom software development firm, was launched in 2008. They are located in Bellevue, Washington and Navi Mumbai, India and have a midsize team. Their services include custom software development, IT managed services, enterprise app modernization, web development, and more.
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118$10,000+10 - 49 employeesColumbus, OHBig Kitty Labs is a custom software development company. They are based in Columbus, Ohio and have a small team. The company provides Custom Software Development, Mobile App Development, Enterprise App Modernization, Web Development, and more.Read More
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The Ohio State UniversityIndustries
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119$5,000+50 - 249 employeesParsippany-Troy Hills, NJRead More
Korcomptenz Inc is a web and mobile app development firm based in Mount Arlington N.J. Founded in 2003, their team of 120 serves clients in the advertising and nonprofit sectors. Services include iOS/Android, WordPress, and Drupal development.
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120$25,000+10 - 49 employeesChicago, ILBusiness intelligence company Loadsys Consulting, Inc was launched in 2002. Their small team is located in Chicago, Illinois and provides BI & big data consulting & SI, Artificial Intelligence, Enterprise App Modernization, AI Consulting, and more.Read More
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All Star DeliveryIndustries
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