Top 100 C# Developers

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.

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.

Glorium Technologies is a midsize custom software development firm. Launched in 2010, the firm is located in Princeton, New Jersey; Kyiv, Ukraine; Paphos, Cyprus and Kraków, Poland. Their services include Custom Software Development and Generative AI.

Founded in 2001, Thinklogic is a development firm. Their small team is based in El Segundo, Calif. They focus on custom software, web, and mobile app development.

Founded in 2009, Unosquare, LLC is headquartered in Lake Oswego, Ore. with other locations in Guadalajara, Mexico, and Belfast, U.K. With more than 600 employees, they provide software testing and development services, combined with their staff augmentation services to meet software engineering needs, using nearshore development professionals.

Launched in 2014, CSHARK is a software development company. The midsize team provides Custom Software Development, Enterprise App Modernization, and UX/UI Design. The company is based in Wrocław, Poland and Singapore.

Founded in 2011, Trinetix Inc. Is a custom software development company. Their midsize team is in Wilmington, Delaware; Kyiv, Ukraine and Kyiv, Ukraine. Their team focuses on custom software development, cloud consulting & SI, enterprise app modernization, mobile app development, and more.

UNECOS SOLUTIONS is a development company. They are based in Riga, Latvia, and have a team of nine. Their services include custom software development, web development, mobile app development, and e-commerce development. The company was founded in 2019.  

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. 

Qubiz is a nearshore IT outsourcing company founded in 2008 in Cluj-Napoca, Romania. With over 250 members, they provide IT staff augmentation, custom software development, and UX/UI design solutions for small and mid-market firms alike.

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. 

Full Scale is a software development company. They provide custom software development, application testing, mobile app development, application management & support, and more and were launched in 2018. Their midsize team is Kansas City, Kansas-based.

Vega IT is a midsize software development company. Founded in 2008, the firm is located in Novi Sad, Serbia; New York, New York and London, England. Their services include Custom Software Development, CRM consulting and SI, Mobile App Development, E-Commerce Development, and more.

KitRUM is a software engineering company that was founded in 2014. The company is headquartered in Clearwater, Fla., with secondary locations in Krakow, Poland and Kharkov, Ukraine. They are made up of 49 employees. They specialize in AR/VR development, IoT development, and mobile app development. 

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.

Yameo is a software development agency headquartered in Rotterdam, Netherlands with a development center in Gdansk, Poland. Founded in 2005, they have 30 employees, and provide custom software development, web development, mobile apps, and IT strategy consulting.

ATOMICUS, a custom software development firm, was launched in 1999. They are in Seattle, Washington and Gdańsk, Poland and have a small team. Their services include custom software development.

Ballast Lane Applications is an app development company founded in 2011 and located in Marblehead, Mass. The team of fewer than 50 employees offers custom software development and mobile app development services. Their clientele comprises mostly small businesses.

Maruti Techlabs is a product development company based in Ahmedabad, India. Founded in 2009, the team of 140 works to build future-proof products and guide digital transformation and sustainable scaling for small, mid-sized, and enterprise clients across a wide range of industries.

Taazaa Inc. is a Cleveland-based software agency founded in 2007 with over 50 experts. They offer custom software, web, and mobile app development solutions for clients ranging from small businesses to large firms in the fields of health care, education, and real estate.

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.

Accedia is a professional IT services company founded in 2012 with offices in Sofia, Bulgaria; Boston, Mass.; and San Francisco, Calif. Its team numbers more than 150 professionals, specialized in technology consulting, agile software development, and implementation of end-to-end IT solutions. Accedia’s clients are technology startups, small and mid-sized enterprises, and large enterprise businesses engaged in banking, finance and insurance, and manufacturing, among other industries.

Digital Mettle is a technology consultancy and custom software development firm based in Raleigh, N.C. The firm, founded in 2001, has a team of more than ten that provides custom software development, mobile app development, web development, and IT strategy consulting services to small and midmarket companies and institutions in business services, consumer products & services, education, financial services, health care and medical, nonprofit, and other industries.

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.

EXLRT, a software development company, was founded in 1997. Their midsize team is located in Naarden, Netherlands; Dover, Delaware; Novi Sad, Serbia and Niš, Serbia and provides Custom Software Development, Web Development, IT strategy consulting, ERP consulting and SI, and more.

Launched in 2002, DOOR3 is an UX design agency. The company offers UX/UI Design, Custom Software Development, and Web Development and has a midsize team.

Haefele Software is an outsourced Microsoft software development company based in Cape Town, South Africa, with offices in Melbourne, Australia; Tampa, Florida; and London. The company, founded in 2006, has more than 50 employees and provides custom software development, IT strategy consulting, and IoT development services to enterprise and smaller-sized companies in various industries.

Exilion Technologies Inc is a custom software development firm. Founded in 2008, the company is headquartered in Vaughan, Canada. The team specializes in custom software development and blockchain solutions.

Custom software development company Simform was founded in 2010. The agency specializes in Custom Software Development, Artificial Intelligence, cloud consulting & SI, Mobile App Development, and more and has a large team.

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.