Top 100 C# Developers in New York City
The Best of December 2025Looking for a top C Sharp software development company in New York City?
The programming language C Sharp (C#), is general-purpose and used for web and mobile apps. It has a number of advantages: It's object-oriented, has automatic garbage collection, functions across platforms, has backward compatibility, and integrates well with other platforms and services.
To assist you in your search for a partner, we’ve compiled this list of the top C# developers 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 C Sharp (C#) Software Development Companies
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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+1,000 - 9,999 employeesNew York, NY10Pearls is a custom software development company located in Vienna, Virginia; Medellín, Colombia; New York, New York and San Rafael de Escazú, Costa Rica. The large firm was established in 2004. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.Read More
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HughesNetIndustries
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3$5,000+50 - 249 employeesNew York, NYDigis, a Fiverr company (NYSE: FVRR) is a custom software development company and web development firm. Launched in 2015, the team offers Custom Software Development and Web Development. Their midsize firm is in London, England; New York, New York; București, Romania and L'viv, Ukraine.Read More
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Blablacar Hubspot PwC HumaIndustries
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4$5,000+250 - 999 employeesNew York, NYRead More
Founded in 2020, UplineSoft is a custom software development firm. Their midsize team is in Charlotte, North Carolina; New York, New York; Monroe, North Carolina and Charlotte, North Carolina and offers Custom Software Development and IT staff augmentation.
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5$50,000+50 - 249 employeesNew York, NYSaritasa, a software development company, is headquartered in Newport Beach, California; New York, New York; Chicago, Illinois and Manhattan Beach, California. The midsize company was established in 2005. Their team provides Custom Software Development, AR/VR development, Web Development, Mobile App Development, and more.Read More
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Mitsubishi Makita ASCO Power Technologies WinegardIndustries
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6$100,000+1,000 - 9,999 employeesNew York, NYSoftware development firm DataArt is located in New York, New York; Zug, Switzerland; London , England and München, Germany. Established in 1997, the large team provides Custom Software Development, IoT development, Artificial Intelligence, BI & big data consulting & SI, and more.Read More
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Ocado Technology Metro Markets Nasdaq InvescoIndustries
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7$25,000+1,000 - 9,999 employeesDubai, United Arab EmiratesSimform, a cloud consulting & SI company, was founded in 2010. Headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California, their large team focuses on cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more.Read More
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RedbullIndustries
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8$5,000+50 - 249 employeesNew York, NYBit by Bit Computer Consultants is a midsize IT managed services company. The New York, New York-based company was established in 1987. Their team offers IT managed services, Cybersecurity, and Custom Software Development.Read More
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9$50,000+250 - 999 employeesNew York, NYMethod is a midsize UX agency. They specialize in UX/UI Design, Custom Software Development, Digital Strategy, Mobile App Development, and more and were launched in 1999. The agency is located in New York, New York; London, England; Santa Clara, California and Charlotte, North Carolina.Read More
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10$10,000+250 - 999 employeesNew York, NYRead More
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.
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GolflogixIndustries
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11$10,000+50 - 249 employeesNew York, NYMojo Trek is an IT staff augmentation company. Founded in 2017, the team focuses on IT staff augmentation, Custom Software Development, IT managed services, Application Testing, and more. Their midsize company is Chicago, Illinois-based.Read More
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Fortune 100 QSR Company Fortune 500 QSR Company AlphaBotIndustries
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12$25,000+50 - 249 employeesNew York, NYRead More
Jahnel Group, Inc. is an application development company based in Schenectady, N.Y., with offices in New York and Plano, Texas. The company, founded in 2012, has around 90 employees and provides custom software development, web development, mobile app development, and UX/UI design services. Jahnel Group, Inc. serves midmarket and other-sized companies and institutions in the business services, financial services, gaming, education, manufacturing, medical, and e-commerce industries.
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AtosIndustries
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13$25,000+50 - 249 employeesBrooklyn, NYDevtorium is an AI firm based in Brooklyn, New York; L'viv, Ukraine; Poltava, Ukraine and Vinnytsia, Ukraine. The firm specializes in Artificial Intelligence, Web Development, Custom Software Development, Generative AI, and more and has a midsize team.The firm was established in 2017.Read More
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ISDA Inc.Industries
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14$25,000+250 - 999 employeesNew York, NYRobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
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Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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15$25,000+50 - 249 employeesNew York, NYRead More
Capicua is a full-cycle digital agency based in Montevideo, Uruguay, and founded in 2010. Their team of 23 employees specializes in custom software development, UX/UI design, and mobile app development.
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KÜHLIndustries
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16$10,000+50 - 249 employeesZaporizhzhia, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
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OnlyFansIndustries
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17$50,000+50 - 249 employeesNew York, NYVaryence is a web development company. The midsize team is based in L'viv, Ukraine; New York, New York and Split, Croatia. Their services include Web Development, Custom Software Development, Mobile App Development, IT strategy consulting, and more.Read More
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18$100,000+50 - 249 employeesDallas, TXRead More
Established in 2012, Unique Software Development is a data analytics company. The firm offers BI & big data consulting & SI, Web Development, Custom Software Development, Mobile App Development, and more and has a midsize team. The firm is headquartered in Dallas, Texas; Washington, District of Columbia; New York, New York and Austin, Texas.
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MODE TransportationIndustries
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19$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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20$10,000+10 - 49 employeesNew York, NYRead More
New Peak Solutions is a SharePoint consulting and software solutions company with offices in New York. Founded in 2003, they have two employees specializing in custom software and mobile app development and IT consulting for various clients throughout the United States. Their expertise covers SharePoint, Office 365, ERP and CRM integration, and mobile, custom, and cloud development.
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Marshall IPIndustries
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21$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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22$10,000+10 - 49 employeesNew York, NYHeadChannel Consulting, a software development company, is based in London, England; Katowice, Poland and New York, New York. The small team provides Custom Software Development, Artificial Intelligence, UX/UI Design, Web Development, and more and was founded in 2004.Read More
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The William Pears GroupIndustries
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23$50,000+250 - 999 employeesNew York, NYTruelogic Software LLC, an IT staff augmentation company, was established in 2003. The midsize team specializes in IT staff augmentation, Custom Software Development, Web Development, Mobile App Development, and more. The firm is in New York, New York and Buenos Aires, Argentina.Read More
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VisaIndustries
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24$100,000+1,000 - 9,999 employeesNew York, NYRead More
Headquartered in San Francisco, Wizeline is a global technology services provider with delivery centers in Mexico, Colombia, Spain, and Vietnam. Since its founding in 2014, Wizeline has grown to over 1,300 employees specializing in product/platform development, UX design, data & AI, cloud & DevOps, and product evolution services.
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Fitz Frames -
25$25,000+50 - 249 employeesNew York, NYErgonized is a CRM consulting and SI company headquartered in New York, New York. The company specializes in CRM consulting and SI and Custom Software Development and has a midsize team.The company was launched in 2007.Read More
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ExactDataIndustries
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26$10,000+50 - 249 employeesNew York, NYRead More
JetSoftPro is a software development agency that was founded in 2003. Based in New York, their team of 48 specializes in custom software development, IT strategy consulting, and product design. Their client base is mainly composed of midmarket companies.
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CreatorIQIndustries
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27$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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28$25,000+1,000 - 9,999 employeesBoston, MASimbirSoft Company is a custom software development company established in 2001. The large Boston, Massachusetts-based team specializes in Custom Software Development and IT staff augmentation.Read More
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Percona, Dami LLCIndustries
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29$10,000+50 - 249 employeesNew York, NYIT staff augmentation company NewCombin was established in 2017. Located in New York, New York; Ciudad de México, Mexico and Buenos Aires, Argentina, their midsize team offers IT staff augmentation, Custom Software Development, Web Development, and Artificial Intelligence.Read More
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Verizon Media -
30$10,000+50 - 249 employeesHeredia, Costa RicaFusionHit is a midsize IT staff augmentation company. Launched in 2010, the team focuses on IT staff augmentation, Web Development, Application Testing, Custom Software Development, and more. The firm is headquartered in Heredia, Costa Rica; San Salvador, El Salvador; Bogotá, Colombia and New York, New York.Read More
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Alliance Partner GroupIndustries
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