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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1$25,000+250 - 999 employeesGliwice, PolandRead More
Future Processing, a software development firm, was founded in 2000. They are based in Gliwice, Poland; Ternopil, Ukraine; London, England and Düsseldorf, Germany and have a midsize team. Future Processing provides Custom Software Development, cloud consulting & SI, BI & big data consulting & SI, Web Development, and more.
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AllocateIndustries
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2$50,000+250 - 999 employeesWrocław, PolandCSHARK is a software development company. The midsize Wrocław, Poland-based company was established in 2014. Their services include Custom Software Development, Enterprise App Modernization, and UX/UI Design.Read More
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Fenergo (Fintech)Industries
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3$50,000+1,000 - 9,999 employeesKraków, PolandRead More
Software Mind S.A., an IT strategy consulting company, is headquartered in Kraków, Poland; Warszawa, Poland; Rzeszów, Poland and Bielsko-Biała, Poland. The large team focuses on IT strategy consulting, cloud consulting & SI, Cybersecurity, Custom Software Development, and more and was founded in 1999.
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Backbase Baillie Gifford Branch CallcreditIndustries
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4$10,000+250 - 999 employeesKraków, PolandScalo is a Kraków, Poland-based software development company. The midsize firm was launched in 2007. Their services include Custom Software Development, BI & big data consulting & SI, IT managed services, IT staff augmentation, and more.Read More
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BNP Paribas, Pagaya, ING, Santander, Daimler TB.LX, Zooplus, Tabnine, Backbase, Change DonationsIndustries
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5$5,000+250 - 999 employeesGdańsk, PolandRead More
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.
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6$25,000+1,000 - 9,999 employeesKraków, PolandRead More
Ailleron S.A., a digital strategy company, is in Kraków, Poland. The midsize firm was established in 2014. Their team focuses on digital strategy, enterprise app modernization, mobile app development, custom software development, and more.
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7$10,000+50 - 249 employeesWarszawa, PolandRead More
Lightpoint Global is a development company with 41 employees that is based in Minsk, Belarus. Since being founded in 2011, they have focused on web development, big data consulting, and cloud consulting. They work with both small and mid market businesses in mainly media, education, and financial services.
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LufthansaIndustries
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8$25,000+50 - 249 employeesWarszawa, PolandReenbit, a data analytics company, is based in L'viv, Ukraine; Warszawa, Poland and Markham, Canada. The midsize team focuses on BI & big data consulting & SI, Custom Software Development, Enterprise App Modernization, cloud consulting & SI, and more and was founded in 2018.Read More
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CloudBooking Glowi EClou DataloopIndustries
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9$50,000+50 - 249 employeesGliwice, PolandBrainhub is a website development company based in Gliwice, Poland; Miami, Florida; London, England and Stockholm, Sweden. Launched in 2015, the midsize team provides Web Development, cloud consulting & SI, and Custom Software Development.Read More
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National Geographic Star Stable GoKong Credit SuisseIndustries
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10$25,000+50 - 249 employeesGdańsk, PolandFounded in 2005, Yameo is a custom software development firm. The midsize team offers Custom Software Development, Web Development, Mobile App Development, and IT strategy consulting. The firm is in Utrecht, Netherlands and Gdańsk, Poland.Read More
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DEKRA Ergo Hestia Tellma GmbH National Health Insurance Scheme GhanaIndustries
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11$25,000+250 - 999 employeesHelsinki, FinlandAltoros is a midsize Blockchain company. Founded in 2001, the firm is based in Pleasanton, California; Buenos Aires, Argentina; Oslo, Norway and Helsinki, Finland. Their team offers Blockchain, Custom Software Development, Web Development, Enterprise App Modernization, and more.Read More
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AllstateIndustries
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12$25,000+250 - 999 employeesWarszawa, PolandAltkom Software is a Warszawa, Poland-based custom software development firm. They specialize in Custom Software Development, Mobile App Development, Enterprise App Modernization, and cloud consulting & SI and were launched in 2000.Read More
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BNP ParibasIndustries
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13$25,000+250 - 999 employeesPoznań, PolandSTX Next is an AI firm established in 2005. The company focuses on Artificial Intelligence, BI & big data consulting & SI, Custom Software Development, Web Development, and more and has a midsize team.Read More
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Mastercard Canon Hogarth ManIndustries
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14$25,000+250 - 999 employeesWarszawa, PolandITMAGINATION, a midsize custom software development company, is headquartered in Warszawa, Poland. Established in 2008, the team offers Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Artificial Intelligence, and more.Read More
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American Express (previously Kabbage)Industries
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15$10,000+50 - 249 employeesWarszawa, PolandIn Warszawa, Poland; Dubai, United Arab Emirates; Lisboa, Portugal and Richmond, Virginia, Celadonsoft is a custom software development company. The midsize company was established in 2016. Their services include Custom Software Development, Artificial Intelligence, Web Development, Mobile App Development, and more.Read More
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Veil Talented Music App L'ETO EIEVIndustries
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16$50,000+250 - 999 employeesNaples, FLIntetics Inc. Is an IT managed services company founded in 1995. The firm focuses on IT managed services, IT staff augmentation, Custom Software Development, Web Development, and more and has a midsize team. The firm is headquartered in Naples, Florida; Düsseldorf, Germany; Kraków, Poland and Kyiv, Ukraine.Read More
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Encyclopaedia BritannicaIndustries
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17$25,000+50 - 249 employeesŁódź, PolandIn Łódź, Poland, Happy Team is an IT staff augmentation company. The midsize company was launched in 2015. Their services include IT staff augmentation, Custom Software Development, and Web Development.Read More
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18$10,000+50 - 249 employeesWarszawa, PolandRead More
RichBrains is a custom software development firm. Established in 2006, the midsize firm is headquartered in Vilnius, Lithuania and Warszawa, Poland. Their services include Custom Software Development, Web Development, cloud consulting & SI, Mobile App Development, and more.
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19$25,000+1,000 - 9,999 employeesVilnius, LithuaniaItransition, a software development company, was founded in 1998. They are headquartered in Denver, Colorado; London, England; Vilnius, Lithuania and Warszawa, Poland and have a large team. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, ERP consulting and SI, and more.Read More
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ExpediaIndustries
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20$10,000+50 - 249 employeesGdańsk, PolandRead More
Digiteum is a custom software development and IT consulting company based in Gdańsk, Poland. A cross-functional team of designers, software architects, engineers, and managers, Digiteum designs and develops digital systems across web, mobile and IoT.
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Adorama CameraIndustries
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21$25,000+50 - 249 employeesWarszawa, PolandRead More
LeanCode, a mobile application development company, is based in Warszawa, Poland. The midsize agency was launched in 2016. Their services include Mobile App Development, Custom Software Development, and IT strategy consulting.
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Virgin Money Sonova Millennium Bank Credit Agricole Bank PolskaIndustries
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22$50,000+10 - 49 employeesGdańsk, PolandATOMICUS, 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.Read More
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BRUKER CAMECA AMETEK Hitachi High-TechIndustries
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23$5,000+2 - 9 employeesWrocław, PolandRead More
Vratislavia Software Sp. Z o.o. Is a software development firm. They are in Wrocław, Poland and have a small team. The agency provides Custom Software Development, IT strategy consulting, IT staff augmentation, other IT consulting and SI, and more.
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24$5,000+250 - 999 employeesBiałystok, PolandRead More
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.
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MicrosoftIndustries
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25$10,000+250 - 999 employeesWarszawa, PolandRead More
Launched in 2000, *instinctools is a software development company. The midsize team specializes in Custom Software Development, Web Development, IT strategy consulting, Mobile App Development, and more. The firm is in Stuttgart, Germany; Warszawa, Poland; Mississauga, Canada and Wilmington, Delaware.
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Daimler Fujitsu Nostrum SpexAIIndustries
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26$250,000+250 - 999 employeesWarszawa, PolandRead More
JCommerce is a software company based in Katowice, Poland, with offices in six other cities in Poland. Founded in 2005, the team of 318 specializes in custom software development, IT staff augmentation, and BI and big data consulting and SI. They work primarily with midmarket, focusing on information technology, manufacturing, and financial services.
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Aras CorpIndustries
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27$25,000+50 - 249 employeesRzeszów, PolandRead More
Ideo Agency is a full-service software house based in Rzeszów, Poland with offices in Warsaw, Poland, and Drammen, Norway. Since its start in 1999, their team of more than 50 has provided custom software development, web development, e-commerce development, and digital design and marketing services.
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Aarsleff Ground EngineeringIndustries
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28$100,000+250 - 999 employeesKraków, PolandSyberry, a custom software development company, was established in 2014. The company specializes in Custom Software Development and has a midsize team. The company is headquartered in Austin, Texas and Kraków, Poland.Read More
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FTSE RussellIndustries
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29$50,000+50 - 249 employeesKraków, PolandIndeema, an IoT development company, was established in 2014. The agency specializes in IoT development, Artificial Intelligence, Custom Software Development, and AI Agents and has a midsize team.Read More
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Solar ManagerIndustries
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30$5,000+50 - 249 employeesNowy Sącz, PolandRead More
Founded in 2012, GOTOMA is a software development firm. Their midsize team is located in Nowy Sącz, Poland and specializes in custom software development, e-commerce development, web development, mobile app development, and more.
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