Top 100 C# Developers

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Top 100 C# Developers

January 2023

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C Sharp, or C#, is a programming language created by Microsoft. It's general-purpose and addresses static typing, object- and component-oriented programming approaches. 

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List of the Best C# Programmers

  • 1
    • $25,000+
    • 50 - 249 employees
    • Princeton, NJ

    Glorium Technologies is a healthcare-focused app and software development company headquartered in Manalapan, N.J. The company was founded in 2010, and has a team of around 70 employees who specialize in web development, custom software development, and mobile app development. They work mostly with small and mid-market businesses in the health care & medical industry.
     

    Clients

    • CAE Healthcare
    • AGFA Healthcare
    • REALPAGE
    • control.IT

    Industries

    Notable Project

    Glorium Technologies designed the UI/UX of an investment platform's app. They conducted research and studied the needs of the app's end users while assessing and focusing on key leverage points. 

    "They really care about us as the client."

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  • 2
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Wrocław, Poland

    CSHARK is a software and product development company that helps enterprises with digital transformation and start-ups translate ideas into products. Founded in 2014, it currently has over 300 mid and senior developers on board. CSHARK creates web and mobile apps from scratch and consults companies from FinTech and RegTech sectors. According to the Financial Times ranking in 2019 and 2020, we were among the fastest-growing companies in Europe.

    Clients

    • Fenergo (Fintech)
    • REGENHU (Biotech)
    • VecCtor (Digital infrastructure for Industry 4.0)
    • HTP J-1 Visa Programs

    Industries

    Notable Project

    CSHARK offers software engineering resources to a FinTech solution company. Services rendered include UX/UI design, platform development, product integration, and customer support.

    "CSHARK developers are flexible enough to jump from one project to the other."

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  • 3
    • $50,000+
    • 1,000 - 9,999 employees
    • Kraków, Poland

    Software Mind is a global IT services company headquartered in Krakow, Poland, with offices in Warsaw, Rzeszow, and Bielsko-Biala in Poland as well. Founded in 1999, their team of 116 works with clients from startups to enterprises to offer assistance in custom software development, enterprise app modernization, and BI & big data consulting & SI. They mainly work in the medical and financial services industries.

    Clients

    • Corelogic
    • Dell
    • Backbase
    • Branch

    Industries

    Notable Project

    Software Mind has recruited technical resources for a software service provider. They've helped the firm develop two of their software systems. 

    "I'm impressed by the quality of the talent they provide."

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  • 4
    • Scheduling

      4.4
    • Quality

      4.8
    • Cost

      4.3
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Pleasanton, CA

    Altoros is a software development company in Warsaw, Poland. Founded in 2001, Altoros' team of over 350 employees specializes in cloud consulting, BI & big data consulting, blockchain and artificial intelligence services. 

    Clients

    • Allstate
    • Siemens
    • Huawei
    • Toyota

    Industries

    Notable Project

    Altoros researched a complicated environment and provided several possible solutions for a data warehousing project. The agency’s goal was to optimize business intelligence and increase new sales.

    "They have performed exceptionally. I do not have any major issues with them."

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  • 5
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • London, United Kingdom

    One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups

    Clients

    • Smith & Nephew
    • GAIL's Bakery
    • Costa Express
    • Pearson

    Industries

    Notable Project

    One Beyond (formerly DCSL GuideSmiths) developed a cloud-based web app for a contract company. The digital tool lets users define large construction projects and streamlines the procurement process for contractors.

    “Whenever there was a problem, they helped us come up with a solution.”

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  • 6
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • Tallinn, Estonia

    Founded in 1991, ELEKS is a provider of software development, product design and technology advisory services. They offer cooperation models that fit the goals, resources and timelines of Fortune 500 companies, large enterprises, and small businesses. ELEKS has more than 2,000 specialists and 17 offices on three continents to serve their clients globally. 

    Clients

    • Eagle Investment Systems (a subsidiary of BNY Mellon)
    • Autodesk
    • ESET
    • TAIT

    Industries

    Notable Project

    ELEKS developed a mobile application from scratch for a fintech company. They worked on the design and built the iOS and Android versions using React Native and an API written in Laravel.

    “They came up with new ideas and became an extension of our team.”

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  • 7
    • $25,000+
    • 250 - 999 employees
    • Gliwice, Poland

    Future Processing is a software developer based in Gliwice, Poland. Founded in 2000, they now have more than 900 employees. They specialize in custom software development, web development, and enterprise app modernization for primarily midmarket and small business companies in the healthcare, IT, and transportation industries.

    Clients

    • Allocate
    • Demica
    • 4 finance
    • Coconet

    Industries

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  • 8
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Gliwice, Poland

    Brainhub is a software development partner for startups, scaleups and enterprises with ambitious product development plans. Founded in 2014, Brainhub is a team of 95 experts in Node.js, ReactJS, .NET, TypeScript and React Native that helped 65+ fintech, edtech, martech, healthcare and gamedev companies scale their web and mobile app development. Recognized as one of the fastest growing companies in Europe by Financial Times, Deloitte and Forbes.

    Clients

    • National Geographic
    • Paradox Interactive
    • TC Global
    • Collegial

    Industries

    Notable Project

    Brainhub provided UX design for a recruitment marketing agency. The team conducted a strategy workshop, comprehensive system analysis, and UX audit, recommending solutions and implementing changes. 

    "They made sure that each functionality implemented had business value."

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  • 9
    • Scheduling

      4.9
    • Quality

      5.0
    • 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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  • 10
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • Gdańsk, Poland

    Solwit SA is a custom software development firm based in Gdańsk, Poland. Founded in 201, their team of 500 serves clients in the IT, Financial services and utilities sectors. Services include NodeJS, AngularJS, and .NET development.

    Industries

    Notable Project

    Solwit SA develops software that enables publishing houses to create interactive versions of their content. They also develop the client's learning management system.

    "Their reliability stands out; they have as little downtime as possible to deliver results on time."

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  • 11
    • $50,000+
    • 1,000 - 9,999 employees
    • L'viv, Ukraine

    Sigma Software Group is a software development & consulting partner with headquarters in Lviv, Ukraine, and offices in the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Poland, Latin America, and Portugal. Founded in 2002, the company accounts for over 2000 employees, helping clients from startups to Fortune 500 brands with software product and custom solutions delivery, digital transformation, Big Data, AI/ML, AR/VR, IoT, web & app development services.

    Clients

    • Volvo
    • Scania AB
    • KnorrBremse
    • AstraZeneca

    Industries

    Notable Project

    A motor vehicle manufacturing company hired Sigma Software Group to create an automated warranty system. The system tracks warranties and integrates data with other systems for the best financial follow-up.

    “They don’t overpromise; we set the plan and they stick to that.”

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  • 12
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • Washington, DC

    Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.

    Clients

    • HughesNet
    • Johnson & Johnson
    • PayPal
    • CocaCola

    Industries

    Notable Project

    Brought on to assist the existing development team, 10Pearls provides medical software, website, and administrative back-end development of a large platform.

    “They get the job done, work hard, and are very responsive.”

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  • 13
    • Undisclosed
    • 250 - 999 employees
    • New York, NY

    Abto Software, founded in 2007, is a custom software engineering company headquartered in New York City, with an additional office in Lviv, Ukraine. The company’s team of 208 people specialize in AI, enterprise app modernization, and web development. Their clients are mid-market, small, and enterprise businesses. Most of the businesses they work with are in the IT, health care & medical, and retail industries. 

    Clients

    • Medikit
    • UPGREAT
    • Skybow
    • WeGo VISION LTD

    Industries

    Notable Project

    Abto Software has been hired by a software development company to build a complex microservice-based solution. They are also tasked with the migration of the solution to AWS and further maintenance.

    "They are great professionals who are always ready to go the extra mile to deliver the best services."

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  • 14
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • Warszawa, Poland

    Avenga is a global IT and digital transformation consultancy with over 20 years of experience for verticals such as pharma & life science, insurance and finance. Avenga has more than 2500 professionals with offices in Germany, Poland, Ukraine, the U.S., and Malaysia. Services include digital strategy & CX, custom software development, staffing, as well as Salesforce consulting, big data, and cloud solutions.

    Clients

    • Roche
    • GSK
    • Credit Suisse
    • Trov

    Industries

    Notable Project

    Avenga has deployed a team of about 30 members to help a healthcare technology firm with their product development projects. They've designed, built, and tested various product features.

    "The team is easy to work with and, for the most part, keeps their schedule."

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  • 15
    • $25,000+
    • 50 - 249 employees
    • Saint Paul, MN

    Emergent Software is a Minneapolis-based technology solution provider that was founded in 2015. Its notable proficiencies have an emphasis on custom software development, mobile app development, and web development. The team features 10-15 full-stack developers, SQL Server DBA’s, graphic & UI designers, and project managers. Additional areas of expertise include SharePoint, Salesforce, and SQL Server consulting and database administration.

    Clients

    • The Tile Shop
    • State of Minnesota
    • The Raymond Corporation
    • Legrand

    Industries

    Notable Project

    Emergent Software made adjustments and added functionality to an existing .NET platform. They coded new elements for UI and backend design and incorporated them into a point of sale system.

    “They were thorough and understood our requests, and they built a solution quickly.”

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  • 16
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Orlando, FL

    Simform is a custom software development company founded in 2010. They have helped organizations ranging from startups, Fortune 500 companies, and WHO-backed NGOs. The team of 250+ delivers digital solutions for their clients and offer artificial intelligence services, API integration, dedicated software development team, and software testing services.
     

    Clients

    • Redbull
    • Hilton
    • Sony Music
    • Boy Scouts of America

    Industries

    Notable Project

    Simform developed an Android and iOS mobile app that monitors and analyzes lung symptoms for a medical technology company. Their efforts included integrating a third party's UI/UX design.

    ''Their team delivered everything on time and within budget.''

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  • 17
    • $25,000+
    • 50 - 249 employees
    • Kharkiv, Ukraine

    New Line Technologies is a software company of 86 employees, founded in 2009. They are headquartered in Kharkiv, Ukraine, with secondary locations in Plovdiv, Bulgaria, and Atlanta. They provide mobile app development, web development, and custom software development. They serve small and midmarket businesses in the arts, business, financial, media, and education industries.

    Clients

    • Evan-Moor (Monterey
    • California
    • USA)
    • Cinamaker (Atlanta

    Industries

    Notable Project

    New Line led web and iOS/Android app development for a social networking platform. Their work included infrastructure, database architecture, design, UI, and branding. They use Azure and a .NET platform.

    "[They] always rolled up their sleeves and came up with great solutions."

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  • 18
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • Białystok, Poland

    SoftwareHut is a software development house with offices around the world, including London, New York, Paris, Munich, Dublin, Stockholm, Copenhagen and Zurich. Founded in 2015, they also have seven offices in Poland, including Bialystock, Olsztyn, Przemysl, Szczecin, Warsaw, Wroclaw, and Poznan. They employ 173 staff specializing in designing, customizing and developing professional IT systems, LIMS, SCM, and mobile apps.

    Clients

    • Microsoft
    • Sonetel
    • QBank
    • Skyscanner

    Industries

    Notable Project

    SoftwareHut was hired by a SaaS startup to develop the frontend of their app. They built the app using Vue.js and integrated it with the client's backend using GraphQL.

    "They quickly understood what we were trying to do and were able to get started and deliver value."

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  • 19
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 1,000 - 9,999 employees
    • Denver, CO

    Founded in 1998 in Denver, Itransition now has multiple offices in the U.S., U.K., E.U., and locations in eastern Europe housing more than 2,200 employees. They help power enterprises and SMBs globally with their digital solutions in the areas of business process automation, AI, data analytics, customer experience, and others. 

    Clients

    • Expedia
    • Xerox
    • Toyota
    • eBay

    Industries

    Notable Project

    Itransition developed a custom software solution to automate IPNav’s system for sorting through millions of patents. They handled development and UI/UX design, and built an analytics engine.

    “They've gone out of their way to be flexible with us, and they really take ownership of their work."

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  • 20
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 250 - 999 employees
    • Houston, TX

    TekRevol is an app development startup of 18 employees. Founded in 2014, their headquarters is in Newark, Calif. They offer various services: mobile app development, web development, e-commerce development, blockchain, and more. They primarily work with enterprise and midmarket clients in the e-commerce and business services industries.
     

    Clients

    • The University of Toronto
    • Waste Connections
    • Oz Leasing
    • Beach Bandits

    Industries

    Notable Project

    TekRevol is helping a parking reservation company develop their app for iOS and Android. They continuously collaborate with the client on completing the steps on which they initially divided the project.

    “They’ve shown that they can keep their promises through their work.”

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  • 21
    • $10,000+
    • 250 - 999 employees
    • Medellín, Colombia

    Ceiba Software is a software and app development firm based in Medellin, Colombia, with a secondary location in Bogota, Colombia. Founded in 2006, this company has more than 400 employees. Services offered by Ceiba Software include custom software development, mobile app development, and IT staff augmentation for businesses of all sizes.

    Clients

    • Sura
    • Bancolombia
    • Scotiabank
    • Davivienda

    Industries

    Notable Project

    Ceiba Software handles custom software development services for an IoT SaaS company. In efforts to upgrade to an on-premise version, their team updated the software using AWS and DevOps.

    “Ceiba Software has a great disposition and willingly runs the extra mile to ensure successful project completion.”

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  • 22
    • $25,000+
    • 250 - 999 employees
    • Warszawa, Poland

    ITMAGINATION is a technology services company in Warsaw, Poland with more than 400 employees. Established in 2008, they do customer software development, web development, and BI and big data consulting. ITMAGINATION primarily serves midmarket–enterprise clients in the financial services, business services, and utilities sectors.

    Clients

    • Kabbage
    • Greenlight
    • BNP Paribas
    • L'Oréal

    Industries

    Notable Project

    ITMAGINATION was hired by a financial services company to build and maintain a custom IT solution. The system supports operations, sales, and other materials for the organization.

    "The project went smoothly, and the team was always able to translate our vision into a real, working system."

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  • 23
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Founded in 2015, Honeycomb Software is a software development firm that offers custom software development, web development, and web design services to their small business, mid-market, and enterprise clients in the IT, business services, and e-commerce industries. Their 250 employees  are based out of Lviv and Rivne, Ukraine.

     

    Clients

    • Tracir Financial Services

    Industries

    Notable Project

    Honeycomb Software has been hired by a web development company to augment a project in the mining and exploration industry. They've been tasked with building two versions of the product with different features.

    "We appreciate the support during the whole development process."

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  • 24
    • $1,000+
    • 2 - 9 employees
    • Denver, CO

    Pell Software is a custom business software developer based out of Denver. Founded in 2019 and with about 5 team members, they focus on custom software development and website development mainly for small businesses in manufacturing, e-commerce, automotive, and financial industries. 

    Clients

    • Aegion / Underground Solutions
    • GH Phipps Construction
    • Building & Earth Sciences
    • Bioenergy Devco

    Industries

    Notable Project

    Pell Software developed an API infrastructure for a digital music platform. They used Microsoft Azure as the middleware hosting environment.

    "I appreciated not having to be the middle man with technical stuff that I have no clue about."

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  • 25
    • Scheduling

      4.4
    • Quality

      4.7
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • Wrocław, Poland

    Scalo is a software solutions company based in Wroclay, Poland. The company, founded in 2007, has around 500 employees and provides custom software development, IT staff augmentation, web development, application testing, and IT strategy consulting services. Scalo serves mid-market and other-sized companies in various industries that include financial services, IT, and manufacturing.

    Clients

    • Change Donations
    • ELSA
    • Satori Analytics
    • ING

    Industries

    Notable Project

    Scalo has augmented a technology company's development capabilities. The vendor has provided Python developers that worked together with the client's team for projects.

    "Scalo took the time to understand our team, our values, and our ways of working."

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  • 26
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Influential Software is a software development firm in London, United Kingdom; Maidstone, United Kingdom and Glasgow, United Kingdom. The firm focuses on custom software development, web development, BI & big data consulting & SI, IT managed services, and more and has a midsize team.The firm was launched in 1993.

    Clients

    • Deloitte
    • American Express
    • London Stock Exchange
    • Pret a Manger

    Industries

    Notable Project

    Influential Software developed a Sharepoint solution to improve a children's charity organization's data management and delivered an interactive wiki. 

    "We were very impressed with Influential for the positive meetings and collaboration between our two companies."

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  • 27
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Rafael, Argentina

    POSSUMUS is an IT staff augmentation company launched in 2005. Their midsize team is in San Rafael, Argentina and Littleton, Colorado and specializes in IT staff augmentation, custom software development, e-commerce development, mobile app development, and more.

    Industries

    Notable Project

    POSSUMUS has created a fintech platform for the Latin Americanrica branch of a fintech platform. Assigned developers worked with Java, Node JS, and React to deliver the solution.  

    "The communication is great and the style is very smooth and close."

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  • 28
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Vienna, VA

    Exoft is a digital development company based in Lviv, Ukraine. Founded in 2013, Exoft's team of 40 employees provides web development, mobile app development, and custom software development services for small, mid-market, and enterprise clients alike in the financial and business services and healthcare industries. 

    Clients

    • LogiPlan
    • Safe
    • Bridgestone

    Industries

    Notable Project

    Exoft is tasked with developing a system for a telemedicine platform. These include iOS, Android, and web applications, admin parts, API parts, and databases.

    "The Exoft team is very professional, knowledgeable, and experienced."

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  • 29
    • Scheduling

      5.0
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $75,000+
    • 50 - 249 employees
    • Atlanta, GA

    HatchWorks is an Atlanta-based software development and UX/UI design company with extensive nearshore delivery centers in Latin America. Founded in 2016, HatchWorks core purpose is to design and build software solutions your customers and business will love. HatchWorks provides custom software development, experience design, analytics, AI/ML, big data, and cloud services through their integrated US and Nearshore Agile teams.

    Clients

    • AT&T
    • Diebold Nixdorf
    • TrueBlue (PeopleScout & PeopleReady)
    • Advent Health

    Industries

    Notable Project

    HatchWorks designed and developed an online and mobile software platform for a financial services company. The delivered solution has received overwhelmingly positive feedback from both clients and representatives, specifically praising the software’s intuitiveness, design, and interactive capabilities. HatchWorks’ personal investment and project management has helped guarantee future engagement.

     

    "It was the personal touch that will keep us coming back to HatchWorks."

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  • 30
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • L'viv, Ukraine

    Leobit is a web and mobile application development company based in Lviv, Ukraine.  Founded in 2014, their team of 114 specializes in IT staff augmentation beyond their development capabilities. They work with mid market and enterprise companies in the information technology, hospitality, health care, and e-commerce industries. 

    Clients

    • KEMET Corporation
    • Antourage
    • VismoX
    • Imnoo

    Industries

    Notable Project

    Leobit helped the client build and develop a new mobile platform embedded with cloud-based solutions through the utilization of Flutter.

    "Communication with the project manager was easy and accessible."

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