Top 50 C# Developers in New York City

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Top 50 C# Developers in New York City

December 2022

Looking 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. 

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List of the Best New York City C Sharp (C#) Software Development Companies

  • 1
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • New York, NY

    DataArt is a software engineering firm in München, Germany; Zug, Switzerland; London, England; and New York. Founded in 1997, they have about 3,000 employees that serve mainly midmarket and small-business clients in the financial, healthcare, and IT sectors. Services include custom software development, enterprise app modernization, and UI/UX design.

    Clients

    • The Carlyle Group
    • Nasdaq
    • Apax Partners
    • Monex

    Industries

    Notable Project

    DataArt works alongside an automotive company to develop a tabled-based mobile application. The team is building the frontend and the web server that services the app, among other tasks.

    "DataArt is not afraid to engage in challenging or niche projects."

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  • 2
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • New York, NY

    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.

    Clients

    • Golflogix
    • Volkswagen
    • Microsoft
    • Harvard University

    Industries

    Notable Project

    Zco developed a custom business intelligence app. They used multiple technologies on the project.

    "Zco is truly a value-added partner to our company."

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  • 3
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • New York, NY

    DOOR3 is a software development company headquartered in New York, NY. Founded in 2002, DOOR3 has grown to a team of about 60 employees that serves mostly enterprise and mid-market business. They provide software, web, and mobile app development, UX/UI design, and enterprise app modernization.

    Clients

    • Achievement Network
    • AIG
    • Alvin Ailey American Dance Theater
    • American Museum of Natural History

    Industries

    Notable Project

    DOOR3 assessed the website of a recycling company to identify areas of improvement. Then, they redesigned and redeveloped their entire web experience to address the issues they found.

    “DOOR3 was able to put everything together and help us achieve what we wanted.”

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  • 4
    • $5,000+
    • 50 - 249 employees
    • New York, NY

    Bit by Bit Computer Consultants is a 54-person IT firm founded in 1987. With headquarters in New York, they offer IT managed services, cybersecurity, custom software development, and other IT consulting & SI. They serve small and midmarket businesses in the financial, legal, and nonprofit industries.  

    Clients

    • Financial Services
    • Non-Profit
    • Legal
    • Business Services

    Industries

    Notable Project

    Bit by Bit revamped several systems after a comprehensive IT audit. They empowered users to access recent file revisions remotely and introduced a hybrid-cloud structure. They now act as ongoing IT support.

    "We felt confident that they knew their stuff and would take care of us, and our gut instinct turned out to be right." 

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  • 5
    • Scheduling

      4.4
    • Quality

      4.6
    • Cost

      4.3
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • New York, NY

    Innovecs is a software development company headquartered in New York City with offices in Tel-Aviv, Israel, London, Frankfurt, Germany, Bern, Switzerland, San Francisco, and Kiev, Ukraine. Their team of 360 provides web development, custom software development, mobile app development, application testing, and more.

    Clients

    • SGN
    • Warner Brothers Turbine
    • CallFire
    • Iron Source

    Industries

    Notable Project

    Innovecs offers ongoing React Native development support for posture correction technology.

    "In Israel, it was hard to find React Native developers. In Innovecs, we found great React Native developers."

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  • 6
    • $10,000+
    • 10 - 49 employees
    • New York, NY

    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.

    Clients

    • Marshall IP
    • Carnegie Hall
    • Mount Auburn
    • Moveo

    Industries

    Notable Project

    New Peak Solutions provided a website redesign. Their team added new functionalities and site sections. 

    "The end result of the site was even more than I expected."

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  • 7
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • New York, NY

    ModLogix, founded in 2014, helps their clients transition legacy applications to new platforms. This involves services such as cloud migration, API integrations, and web application upgrades. Primarily, their team of fewer than 10 employees offers enterprise app modernization services for midmarket clients. The team is based in New York, New York.

    Industries

    Notable Project

    ModLogix upgraded an application from MVC to .NET Core 3.1. Along the way, they introduced optimizations to the platform code. This involved re-writing modules from scratch.

    "We liked the level of communications, transparency, and desire to go above and beyond to get the job done."

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  • 8
    • $25,000+
    • 50 - 249 employees
    • New York, NY

    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.

    Clients

    • Atos
    • Bethesda
    • Cambridge Associates
    • Discovery Channel

    Industries

    Notable Project

    Jahnel Group, Inc. created a custom software system for an insurance company. They changed the platform from Silverlight to Vue.js. 

    "Their energy was second to none — they were driven to make the project a success."

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  • 9
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • New York, NY

    AMS LLC is a development agency in Cherry Hill, N.J. and Minsk, Belarus. Founded in 2017, they have about 20 employees that serve mostly small-business and midmarket clients in the transportation, education, and financial sectors. Their services are specialized in mobile app development.

    Clients

    • Sandbox
    • Lil Durk
    • General Electric
    • Square Inc.

    Industries

    Notable Project

    Interexy developed a project solution for a software developing company. The key technologies they used included React, Python, and machine learning. Around six teammates worked on the project with the client.

    "It was a great time working with the company."

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  • 10
    • $25,000+
    • 50 - 249 employees
    • Livingston, NJ

    AndPlus is a software product development company located in Southborough, Mass. Founded in 2009, they have 50 employees and serve companies of all sizes – from Fortune 100 companies like Bloomberg and Honeywell, to funded startups looking to launch their MVP. AndPlus focuses on creating mobile and web solutions for IoT, Big Data, User Experience, Artificial Intelligence, Machine Learning, and more.

    Clients

    • Bloomberg
    • ESPN
    • MIT
    • Cambridge Mobile Telematics

    Industries

    Notable Project

    AndPlus has developed a web app for a research university based on the client’s previously-used mobile app. The team’s work currently focuses on adding features to the app to enhance its functionality.

    “We’ve been truly happy working with the AndPlus team.”

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  • 11
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • New York, NY

    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.

    Clients

    • AT&T
    • Starbucks
    • Caterpillar
    • American Express

    Industries

    Notable Project

    TheoremOne developed a strategy and an MVP for an oil and gas construction marketplace. They provided a full delivery team, two full stack engineers, and QA testers.

    "Their thought-leadership in design and their ability to quickly pick up on what we were looking for from the platform."

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  • 12
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • New York, NY

    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. 

    Clients

    • The New York Metropolitan Transportation Council
    • The Sports & Arts in Schools Foundation (SASF)
    • Viedam
    • Smile Train

    Industries

    Notable Project

    NIFTIT provides ongoing IT support for a reproductive health nonprofit. Their work includes digital transformation and backend development for a staff portal.

    "They were always easy to get a hold of and can implement solutions with short notice."

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  • 13
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Woodbridge Township, NJ

    Founded in 2003, TransData is an e-commerce development firm. The midsize team provides e-commerce development and digital strategy. The agency is in Woodbridge Township, New Jersey.

    Clients

    • ilaan
    • Mr Mahir
    • Transcure
    • ATR

    Industries

    Notable Project

    Using Laravel, TransData developed and designed an e-commerce website for an online retail marketplace. They are now developing and providing customer service support for its complimentary Android and iOS app.

    "They are a professional, sincere team that delivers on what they promise."

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  • 14
    • $25,000+
    • 10 - 49 employees
    • New York, NY

    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.

    Clients

    • Columbia Sportswear
    • MedStar Health
    • VW of America
    • AgMark Logistics

    Industries

    Notable Project

    The Smyth Group helped improve the client B2B entry site and eventually designed and built a mobile proof of concept based on our requirements.

    "The Smyth Group UI/UX Designers were effective in running workshops."

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  • 15
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 2 - 9 employees
    • New York, NY

    Armix Group is a digital strategy agency based in New York. This company has 10+ emploees and was founded in 2006. Services offered by Armix Group include SEO, mobile app development, and web development.

    Clients

    • Barnes&Noble
    • Intuit
    • MetLife
    • Relocation

    Industries

    Notable Project

    Armix Group built a WordPress website from the ground up for a New York City-based sightseeing company, helping them to establish email marketing and optimize their content for SEO.

    “They always respond quickly, are very straightforward, and most importantly, they listen.”

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  • 16
    • Undisclosed
    • 10 - 49 employees
    • Staten Island, NY

    Digital Edge Ventures is an IT services company based in Staten Island, N.Y. Founded in 1996, the team of 13 specializes in cloud consulting and SI, cybersecurity, and custom software development. They work primarily with small business clients, mainly in the financial services industry.

    Clients

    • MACY’s
    • March of Dimes
    • NYC Health + Hospitals
    • Numerix

    Industries

    Notable Project

    Digital Edge Ventures provided IT consulting and SI for a financial services company. The team solved the issues by updating all Citrix servers, reviewing SSL certification, and reversing previous changes.

    "The president of Digital Edge Ventures always took an active role in overseeing our projects."

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  • 17
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • New York, NY

    Commit is a midsize custom software development company launched in 2005. Their services include custom software development, IoT development, mobile app development, and BI & big data consulting & SI. The agency is in New York, New York.

    Industries

    Notable Project

    Commit helped a SaaS automotive modeling startup develop an architectural plan for their MVP. The team worked with the client to understand the logic of the MVP and add value to its design and process flow. 

    "They put together a well-thought-out architectural plan; I didn’t see that level of detail from other organizations."

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  • 18
    • $1,000+
    • 10 - 49 employees
    • New York, NY
    Quickway Infosystems is a software development company. They offer custom software development, web development, mobile app development, ux/ui design, and more and were founded in 2017. Their small team is Noida, India-based.

    Clients

    • Affle,Skin Pathology Laboratory,validos.com

    Industries

    Notable Project

    Quickway Infosystems provides web and mobile app development for a pallet manufacturing company. They’ve developed a system to assess product quality, built training modules, and are now working on three apps.

    “They’re very quick at responding and getting things done with good quality.”

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  • 19
    • $25,000+
    • 10 - 49 employees
    • Rutherford, NJ

    Incipient Corp. is a software development group based in Rutherford, N.J., and founded in 2011. Their team of fewer than 50 provides custom software development, cloud consulting, and IT strategy consulting solutions for clients in the industries of manufacturing and business services.

    Clients

    • Amneal Pharmaceuticals
    • Shadow Delivery
    • Billy Joe’s Ribworks

    Industries

    Notable Project

    Incipient Corp. developed custom data management and analysis software for an automotive consultant's customer. The partners worked on the solution's viability and evaluated their approach before development.

    "They ensured they met my needs while pushing the project boundaries to improve the final outcome."

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  • 20
    • Scheduling

      5.0
    • Quality

      4.8
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • New York, NY

    Software development company mejix was founded in 2008. The firm focuses on custom software development, web development, web design, e-commerce development, and more and has a midsize team.

    Industries

    Notable Project

    A healthcare platform hired mejix to create a mobile app. The team ideates and builds the needed software and develops UX and UI strategies.

    "Mejix thinks ahead of our curve, protects us from costly mistakes, and gets to the finish line on time and a budget."

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  • 21
    • $1,000+
    • 250 - 999 employees
    • Kew Gardens, NY

    Fusion Business Solutions Pvt Ltd is an outsourcing and offshoring company with over 300 employees founded in Udaipur, India. Founded in 2006, they work with mid-market and small businesses in the business services industry, among others, to provide non-voice BPO and back-office services. 

    Industries

    Notable Project

    Fusion Business Solutions (P) Limited has provided an accounting employee and a certificate department employee for an insurance brokerage.

    "We're impressed with their professionalism and willingness to learn new things."

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  • 22
    • $5,000+
    • 10 - 49 employees
    • New York, NY

    Exigent Technologies is a full-service information technology consulting firm headquartered in Mount Arlington, N.J., with a satellite office in New York. Exigent's team of 50+ employees looks to offer IT managed services, custom software development, and cybersecurity to small and midmarket businesses. 

    Clients

    • Chiesa Shahinian & Giantomasi,
    • Bulbrite Industries,
    • roundCorner,
    • Heath Village,

    Industries

    Notable Project

    Exigent Technologies designed, installed, and managed a celebrity bake shop’s core network infrastructure. They worked on a 150,000-square-foot warehouse and office facility, supporting 150 connections. 

    "Exigent delivered a reliable and scalable solution that worked."

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  • 23
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.2
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • New York, NY

    Founded in 2014, PYCOGroup is a development firm. Their team of around 370 employees is based in Brussels, with an additional office around the globe. They focus on custom software, web, and mobile app development.

    Clients

    • Microsoft
    • American Express
    • Volkswagen
    • Coach

    Industries

    Notable Project

    PYCOGroup developed an iOS app for tablets that allows customers to customize products in-store. Since launch, they’ve provided ongoing maintenance and new product/offer updates.  

    "Whenever we’ve brought up challenges, they’ve ironed them out quickly." 

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  • 24
    • $25,000+
    • 2 - 9 employees
    • New York, NY

    BLUEPORTAL, LLC is an IT company founded in 2015 and run by more than 10 people. Based in New York, they offer custom software, web, and mobile app development solutions, primarily to small and mid-market clients in the fields of financial services, health care, and e-commerce.

    Clients

    • Areale Counseling & Wellness, LLC
    • YouDivine
    • Valley of Rockville Centre AASR

    Industries

    Notable Project

    BLUEPORTAL, LLC designed, developed, configured, and deployed a content management system. The solution includes secure administrative functions along with a backend API.

    "BLUEPORTAL, LLC engaged with me in a detail-oriented, proficient way throughout this project."

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  • 25
    • Scheduling

      5.0
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Union City, NJ

    Addax LLC is an IT company in Union City, N.J. Founded in 2012, they have about 10 employees that serve small-business and midmarket clients in a variety of industries. Services include custom software development and CRM consulting.

    Industries

    Notable Project

    Addax LLC is providing a SaaS company with advisory services. The team also spearheads the renewal of the client's support programs. They currently have ongoing multiple projects with the firm.

    "Addax LLC's team is very innovative, and they’re a hardworking team."

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  • 26
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 2 - 9 employees
    • New York, NY

    Based in New York, New York and Great Barrington, Massachusetts, YoJonesy is a custom software development firm. The small team provides custom software development, ux/ui design, mobile app development, Artificial Intelligence, and more and was founded in 2019.

    Industries

    Notable Project

    A video production company hired YoJonesy to overhaul the company’s website. They aim to generate organic web traffic by adding marketing page efforts and redesigning the whole site.

    "A top-notch work from a wildly talented team of YoJonesy."

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  • 27
    • $1,000+
    • 10 - 49 employees
    • San Francisco, CA

    Brain Studioz is a development agency based in New York. They have a team of around 5 employees and were founded in 2009. They provide web, custom software, and mobile app development services to primarily small businesses. 

    Clients

    • Kuero Hospitality
    • Vilotel Luxury Villas
    • BlueBox Packaging
    • 12 Design

    Industries

    Notable Project

    Brain Studioz developed a website for a vacation rental management company. They added customized features for a booking engine. The final product is integral to the business successfully gathering leads and inquiries. 

    "Great design team and quick turn around on all projects." – CEO, Vacation Rental Management Company

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  • 28
    • $10,000+
    • 50 - 249 employees
    • New York, NY

    DMC, Inc. is an engineering and development firm founded in 1996. It is headquartered in Chicago, but has other locations in Somerville, Mass.; Denver, Colo.; New York, N.Y.; Houston, Texas; and St. Louis, Mo. DMC, Inc. has about 150 employees. While DMC's origins are in robotics and manufacturing automation, they currently offer custom software development and big data consulting services.   

    Clients

    • 3M
    • Ford
    • Cadbury
    • Bosch

    Industries

    Notable Project

    A large ground logistics firm hired DMC to develop a unique IoT device for their centrally-owned fuel depots. DMC created a device to speed up the refueling process and provide useful data to the firms that own the depots.

     

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  • 29

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    • $25,000+
    • 250 - 999 employees
    • New York, NY

    Custom software development company Worldwide TechServices Software Solutions was founded in 2008. In New York, New York and Tewksbury, Massachusetts, their midsize team focuses on custom software development, IT staff augmentation, mobile app development, web development, and more.

    Industries

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  • 30
    • $10,000+
    • 10 - 49 employees
    • New York, NY
    ITSense SAS is a business intelligence company. They are in Bogotá, Colombia and have a small team. Their services include BI & big data consulting & SI, custom software development, mobile app development, web development, and more.

    Industries

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