Top 100 C# Developers in Poland
The Best of December 2025Looking for a top C Sharp software development company in Poland?
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 Poland. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Poland C Sharp (C#) Software Development Companies
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241$10,000+2 - 9 employeesSzczecin, PolandAPLex is a small cloud consulting & SI company launched in 2021. Their services include cloud consulting & SI and Custom Software Development.Read More
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242$10,000+1,000 - 9,999 employeesWarszawa, PolandInnowise, a cloud consulting & SI company, is in Warszawa, Poland; Bruxelles, Belgium; Francavilla al Mare, Italy and Genève, Switzerland. The large team provides cloud consulting & SI, IT staff augmentation, Custom Software Development, Web Development, and more. The agency was founded in 2007.Read More
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TopconIndustries
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243$10,000+50 - 249 employeesKraków, PolandErlang Solutions is a software development company. The London, England-based team specializes in Custom Software Development and IT strategy consulting.Read More
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244$50,000+250 - 999 employeesWrocław, PolandEstablished in 2005, Siili Solutions is a web development company. Their midsize team is in Helsinki, Finland; Wrocław, Poland; Szczecin, Poland and Vaasa, Finland and provides Web Development, UX/UI Design, IT staff augmentation, Custom Software Development, and more.Read More
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245Undisclosed10 - 49 employeesSopot, PolandBuild IT Up, a data analytics company, is located in Sopot, Poland. Their services include BI & big data consulting & SI and IT managed services.Read More
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246$10,000+50 - 249 employeesWrocław, PolandGentle Code is a midsize custom software development company. Based in Wrocław, Poland and Kharkiv, Ukraine, the agency was launched in 2009. Their services include Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more.Read More
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247$1,000+2 - 9 employeesOpole, PolandRead More
Green Code Studio is a small Starokrzepice, Poland-based custom software development firm. They focus on custom software development, web development, mobile app development, Artificial Intelligence, and more and were founded in 2020.
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248$50,000+50 - 249 employeesWarszawa, PolandRelevant Software, a software development firm, is in L'viv, Ukraine; Warszawa, Poland and Ademuz, Spain. The midsize firm was launched in 2013. Their services include Custom Software Development, IoT development, IT staff augmentation, Web Development, and more.Read More
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249$25,000+50 - 249 employeesKraków, PolandRead More
Global Talent is an IT firm based in London with more than 50 experts. Since their founding in 2017, they have provided IT staff augmentation, custom software development, and IT strategy consulting solutions for clients ranging from small firms to large companies.
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VodoriIndustries
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250$10,000+50 - 249 employeesWrocław, PolandRead More
Virtido is a custom software development company established in 2015. Their midsize team is located in Zürich, Switzerland and L'viv, Ukraine. The firm specializes in custom software development, ux/ui design, digital strategy, and IT strategy consulting.
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Etops Group AGIndustries
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251$10,000+50 - 249 employeesKraków, PolandClover Dynamics is an IT staff augmentation company. Located in Львів, Ukraine; Kraków, Poland and Bruxelles, Belgium, their midsize team focuses on IT staff augmentation, Custom Software Development, Artificial Intelligence, and AI Agents. The firm was established in 2020.Read More
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Syte.AI PressReader TypeWise SolyticIndustries
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252$10,000+50 - 249 employeesWarszawa, PolandLaunched in 2017, SmartTek Solutions is a custom software development company. The company offers Custom Software Development, Web Development, ERP consulting and SI, and AR/VR development and has a midsize team. The company is in L'viv, Ukraine; Warszawa, Poland; București, Romania and Austin, Texas.Read More
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253Undisclosed10 - 49 employeesWarszawa, PolandXPGraph is a software development firm. The Warszawa, Poland-based agency focuses on Custom Software Development and Web Development.Read More
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254Undisclosed250 - 999 employeesWrocław, PolandRead More
Softjourn is a creative agency based in Fremont, Calif., with an additional office in Ukraine. Established in 2001, the team of about 170 provides web, mobile app, and IoT development, blockchain, and artificial intelligence services to mainly mid-sized clients.
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TicketmasterIndustries
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255Undisclosed2 - 9 employeesKraków, PolandCdnet is a business intelligence company. They are in Kraków, Poland and have small team. They focus on BI & big data consulting & SI and ERP consulting and SI.Read More
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256$50,000+1,000 - 9,999 employeesWest Hollywood, CARead 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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257Undisclosed10 - 49 employeesGdynia, PolandEstablished in 2014, Trineo is a software development firm. Based in Gdynia, Poland, the team specializes in Custom Software Development and IoT development.Read More
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258$10,000+50 - 249 employeesGdańsk, PolandFinestmedia is a midsize IT staff augmentation company. Launched in 2000, the firm is in Tallinn, Estonia and Gdańsk, Poland. Their team provides IT staff augmentation, Custom Software Development, IT strategy consulting, cloud consulting & SI, and more.Read More
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259$25,000+50 - 249 employeesWarszawa, PolandRead More
Vilmate LLC, an e-commerce development company, is headquartered in Warszawa, Poland; Stockholm, Sweden and Kyiv, Ukraine. The midsize team offers E-Commerce Development, IT strategy consulting, Artificial Intelligence, Custom Software Development, and more and was launched in 2012.
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GetCompliantIndustries
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260$25,000+1,000 - 9,999 employeesRzeszów, PolandRead More
ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.
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BNY Mellon DPD Acino DRAXIndustries
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261$50,000+50 - 249 employeesWarszawa, PolandRead More
Founded in 2006, Vector Software Ltd is an IT outsourcing company based in L'viv, Ukraine. They have more than 50 employees that specialize in application testing and development. They mostly work with mid-market and small businesses.
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Stingray - Optical delousing solutions for fishing industry;Industries
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262$25,000+250 - 999 employeesWarszawa, PolandCivitta is an AI development company. Founded in 2013, the midsize company is located in Vilnius, Lithuania; Rīga, Latvia; Chișinău, Moldova and Kyiv, Ukraine. Their team offers Artificial Intelligence, Custom Software Development, cloud consulting & SI, Enterprise App Modernization, and more.Read More
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Global Airlines AI Front Desk BL.INK Franchise RampIndustries
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263$10,000+50 - 249 employeesWrocław, PolandEstablished in 2000, Sente is a midsize Wrocław, Poland-based Enterprise App Modernization company. Their services include Enterprise App Modernization and Accounting.Read More
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264$10,000+250 - 999 employeesWrocław, PolandBrightgrove is an IT staff augmentation company. Launched in 2011, the midsize firm is based in Remscheid, Germany; Kyiv, Ukraine; Wrocław, Poland and L'viv, Ukraine. Their services include IT staff augmentation, Custom Software Development, IoT development, Application Testing, and more.Read More
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IATAIndustries
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265$10,000+10 - 49 employeesBiałystok, PolandVSK Global Software is a custom software development firm. They are located in Białystok, Poland, and their services include Custom Software Development and Application Testing.Read More
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266$5,000+2 - 9 employeesWarszawa, PolandInventi Apps, a small application development firm, is located in Warszawa, Poland. The team provides Mobile App Development and Custom Software Development.Read More
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267$25,000+50 - 249 employeesPafos, CyprusLaunched in 2010, Glorium Technologies is an ERP consulting and SI company. The firm provides ERP consulting and SI, Custom Software Development, Digital Strategy, Artificial Intelligence, and more and has a midsize team. The firm is in Houston, Texas; Kyiv, Ukraine; Pafos, Cyprus and Kraków, Poland.Read More
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CAE Healthcare PACS Harmony Bodyo ITR SoftwareIndustries
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268$25,000+10 - 49 employeesKyiv, UkraineLember is a small custom software development company in Kyiv, Ukraine; New York, New York; Edgecliff, Australia and Stockholm, Sweden. Launched in 2013, the team focuses on Custom Software Development, UX/UI Design, Web Development, Mobile App Development, and more.Read More
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3PL Fulfilment docStribute OnePage CRM Persuasion SystemsIndustries
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269$50,000+1,000 - 9,999 employeesŁódź, PolandRead More
Infopulse is an end-to-end digital services and advisory company based in Ukraine with additional offices across Europe and the Americas. Founded in 1991, their team of 2,300+ specialists offers solution engineering, managed services, innovation services, digital experience & intelligent business solutions. They work with SMBs and Fortune 100 enterprises, focusing on banking, energy, oil & gas, healthcare, telecom, information technology, and other industries.
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BICSIndustries
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270$10,000+50 - 249 employeesWarszawa, PolandRead 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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