Top 90 Application Modernization Companies in New York City
The Best of December 2025Looking for a top legacy modernization service in New York City?
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 New York City. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best New York City Enterprise Application Modernization Services
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1$50,000+1,000 - 9,999 employeesNew York, NYRead More
Headquartered in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington, Sigma Software Group is a software development company. The large agency was established in 2002. Their services include Custom Software Development, Web Development, Mobile App Development, BI & big data consulting & SI, and more.
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VolvoIndustries
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2$50,000+250 - 999 employeesNew York, NYIcreon, a midsize Digital Strategy company, is in New York, New York; London, England; Conshohocken, Pennsylvania and Washington, District of Columbia. Established in 2000, the team focuses on Digital Strategy, cloud consulting & SI, Web Development, E-Commerce Development, and more.Read More
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National Geographic ChannelIndustries
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3$10,000+50 - 249 employeesNew York, NYRead More
App development company Brights was established in 2011. Their midsize team is in Warszawa, Poland; Kyiv, Ukraine and New York, New York. Their services include Mobile App Development, Generative AI, UX/UI Design, Product Design, and more.
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Philip Morris Suzuki Microsoft DanoneIndustries
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4$5,000+250 - 999 employeesNew York, NYRead More
Clarion Technologies is headquartered in Pune, India. The team has satellite offices stateside in New York as well as in Ahmedabad and Bangalore, India. Founded in 2000, Clarion's team of 500+ employees offers custom software development, web development, CRM consulting & SI, and cloud consulting services. Their client base primarily features small and midmarket businesses.
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KPODJIndustries
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5$25,000+10 - 49 employeesNew York, NYRead More
Consultadd is a software development company. They are headquartered in New York, New York; Pune, India and Irving, Texas and have a midsize team. The company focuses on custom software development, IoT development, mobile app development, wearable app development, and more.
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MizaruIndustries
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6$10,000+50 - 249 employeesNew York, NYLaunched in 2007, 7L International 🇺🇸 🇬🇧 🇪🇺 is a midsize user experience design company. Their services include UX/UI Design, Product Design, Custom Software Development, Mobile App Development, and more. The company is headquartered in New York, New York; London, England and Athina, Greece.Read More
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NYSE United Nations CareLink360 TikTokIndustries
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7Undisclosed1,000 - 9,999 employeesDublin, IrelandIntive is a large Enterprise App Modernization company. The Wrocław, Poland-based company was founded in 1999. Their team provides Enterprise App Modernization, UX/UI Design, Mobile App Development, Application Testing, and more.Read More
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Audi BMW Pockit TandemIndustries
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8$5,000+50 - 249 employeesAhmedabad, IndiaMoweb Technologies Private Limited, an user experience agency, is located in London, England; Ahmedabad, India; Secaucus, New Jersey and Ahmedabad, India. The midsize team focuses on UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more. The firm was founded in 2008.Read More
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Caterpillar (www.cat.com)Industries
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9$10,000+250 - 999 employeesBrooklyn, NYRead More
Five is web and mobile app development agency headquartered in New York with offices in Croatia. The 50+ person product team has been creating stunning, award-winning mobile products since 2008.
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Rosetta StoneIndustries
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10$50,000+50 - 249 employeesNew York, NYRead More
Software development firm Lineate is based in New York, New York and T'bilisi, Georgia. Established in 2005, the midsize team provides Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Web Development, and more.
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Sovrn 33Across Informa RosenIndustries
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11$5,000+10 - 49 employeesNew York, NYRead More
NIFTIT is a design and development agency based in New York, with an office in Ho Chi Minh City, Vietnam. The agency, founded in 2013, has a team of around 20 that provides, among others, ECM consulting & SI, IT managed services, and applications management & support services to various organizations, institutions, and companies.
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The New York Metropolitan Transportation CouncilIndustries
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12$25,000+10 - 49 employeesNew York, NYRead More
Def Method is a software development company based in New York City. Founded in 2014, the team of 21 specializes in custom software development, web development, IT staff augmentation, AI, and more. They work primarily with large and mid-sized businesses, focusing on financial services, real estate, and IT.
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Walmart -
13$50,000+10 - 49 employeesNew York, NYRead More
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.
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NYU LangoneIndustries
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14$100,000+50 - 249 employeesNew York, NYRead More
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.
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SpotifyIndustries
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15$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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16$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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17$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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18$50,000+2 - 9 employeesNew York, NYEnterprise App Modernization company wildcard was launched in 2011. They are based in New York, New York and have a small team. Wildcard focuses on Enterprise App Modernization, UX/UI Design, Application Management & Support, Graphic Design, and more.Read More
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PurpleSunIndustries
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19$10,000+10 - 49 employeesBrooklyn, NYRead More
Founded in 2009 and headquartered in Brooklyn, Mediaset is a digital agency that works with companies in the financial services, real estate, retail, manufacturing, and e-commerce industries. A team of 50 provide web, custom software, mobile app, and e-commerce development services to clients.
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VAMDODOMA LLCIndustries
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20Undisclosed10 - 49 employeesNew York, NYRead More
IT staff augmentation company Matter Product Studio is headquartered in New York, New York. Launched in 2017, the small team focuses on IT staff augmentation, enterprise app modernization, ux/ui design, product design, and more.
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21$10,000+50 - 249 employeesNew York, NYRead More
Midsize app development firm Teqnovos, is in New York, New York; Oakville, Canada and Sahibzada Ajit Singh Nagar, India. Their services include mobile app development, web development, custom software development, enterprise app modernization, and more.
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22$10,000+50 - 249 employeesNew York, NYZertain, an AI Consulting company, is headquartered in New York, New York; Bengaluru, India and Melbourne, Australia. Established in 2021, the midsize team focuses on AI Consulting, Low/No Code Development, Enterprise App Modernization, IT managed services, and more.Read More
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23$50,000+250 - 999 employeesNew York, NYIT staff augmentation company Gaper was founded in 2018. In San Francisco, California; New York, New York; San Mateo, California and Austin, Texas, their midsize team focuses on IT staff augmentation, Custom Software Development, Enterprise App Modernization, Artificial Intelligence, and more.Read More
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MaderaIndustries
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24$10,000+50 - 249 employeesNew York, NYEkohe is an AI development company established in 2007. The company specializes in Artificial Intelligence, custom software development, enterprise app modernization, ux/ui design, and more and has a small team.Read More
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25$5,000+10 - 49 employeesNew York, NYRead More
Cloudacio is a cloud consulting & SI company. Their small team is in New York, New York. Their services include cloud consulting & SI, IT managed services, IT staff augmentation, enterprise app modernization, and more. The agency was established in 2021.
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26$10,000+250 - 999 employeesNew York, NYRead More
XDuce, a business intelligence company and cloud consulting & SI company, is based in Edison, New Jersey. The small company was founded in 2006. Their services include BI & big data consulting & SI and cloud consulting & SI.
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IEEEIndustries
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27$250,000+1,000 - 9,999 employeesNew York, NYInfostretch is a large Application Testing company headquartered in Santa Clara, California and New York, New York. Their services include Application Testing and Enterprise App Modernization.Read More
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28$5,000+10 - 49 employeesParamus, NJRead More
Atoz Softtech is a web agency based in Eastvale, Calif. with more than 10 experts. Founded in 2012, they offer web development, custom software development, and enterprise app modernization solutions for mid-market firms in the fields of media, automobiles, and more.
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GN Construction LLCIndustries
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29$50,000+10 - 49 employeesBrooklyn, NYRead More
Next Horizon Tech Solutions is a Brooklyn, New York-based custom software development company. The small company was founded in 2015. Their services include custom software development, web design, ux/ui design, web development, and more.
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30$50,000+10 - 49 employeesNew York, NYCustom software development firm DRC Systems USA LLC was launched in 2012. Their small team is located in New York, New York and Gandhinagar , India. DRC Systems USA LLC provides custom software development, mobile app development, enterprise app modernization, search engine optimization, and more.Read More
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