Top 70 C# Developers in Bulgaria
The Best of December 2025Looking for a top C Sharp software development company in Bulgaria?
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 Bulgaria. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Bulgaria C Sharp (C#) Software Development Companies
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1$10,000+250 - 999 employeesSofia, BulgariaRead More
Accedia is a Sofia, Bulgaria-based software development firm. They specialize in Custom Software Development, Web Development, Artificial Intelligence, Cybersecurity, and more and were launched in 2012.
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Alexander ForbesIndustries
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2$50,000+250 - 999 employeesSofia, BulgariaRead More
Founded in 2007, Dreamix is a midsize custom software development company headquartered in Sofia, Bulgaria and Cirencester, England. Their services include Custom Software Development, IT staff augmentation, Web Development, IT strategy consulting, and more.
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VistaJetIndustries
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3$10,000+50 - 249 employeesSofia, BulgariaBased in Sofia, Bulgaria and London, England, BGO Software - The Digital Health Lab is a custom software development firm. The midsize company was founded in 2008. Their services include Custom Software Development, IT strategy consulting, IT managed services, Mobile App Development, and more.Read More
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NHS UK - Department of Health, Roche, LabCorp, IQVIA, Curaden, Ampersand Health, BodySpec and many other HealthTech companies.Industries
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4$50,000+1,000 - 9,999 employeesSofia, BulgariaMentorMate, a mobile application development firm, is in Minneapolis, Minnesota; Sofia, Bulgaria; Göteborg, Sweden and Asunción, Paraguay. The company provides Mobile App Development, UX/UI Design, Custom Software Development, Web Development, and more and has a large team.The company was established in 2001.Read More
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AstraZenecaIndustries
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5$25,000+50 - 249 employeesSofia, BulgariaRead More
Resolute Software is a software engineering and consulting company located in Lawrenceville, Ga. Founded in 2019, they currently have about 18 employees. They provide custom software development, IT strategy consulting, and cloud consulting and Si services to primarily midmarket firms and enterprises.
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ProgressIndustries
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6$10,000+50 - 249 employeesSofia, BulgariaRead More
Sciant is an IT solutions development partner serving specific industry sectors, including Fintech and Banking, Logistics and Transport, Travel and Hospitality, working worldwide for both large enterprises and fast-growth startups.
Sciant develops technical solutions, including big data and business intelligence, machine learning, and blockchain, and forms robust and compliant integrations and interfaces for new digital platforms and legacy systems.
The company is headquartered in Sofia, Bulgaria, and has offices in Plovdiv(Bulgaria), Yambol (Bulgaria), and Tirana (Albania). Number of employees - 130.Clients
AvalaraIndustries
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7$50,000+250 - 999 employeesSofia, BulgariaSirma is a custom software development firm. The midsize team is located in Las Vegas, Nevada; Sofia, Bulgaria; Pitești, Romania and Tiranë, Albania. Their services include Custom Software Development, IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, and more.Read More
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Unicredit Group KBC Group Vienna Insurance Group A1 Telekom Austria GroupIndustries
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8$1,000+10 - 49 employeesSofia, BulgariaRead More
Bulgarian Software House (BSH) is a software service provider based in Sofia, Bulgaria. The company, founded in 2000, has a team of more than 20 that provided Unified Communications Consulting & SI, custom software development, enterprise app modernization, web development, and cloud consulting & SI services. BSH serves mid-market and enterprise-sized companies in the financial services, medical, and telecommunications industries.
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Societe Generale ExpressbankIndustries
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9$25,000+10 - 49 employeesSofia, BulgariaLaunched in 2006, Amexis Ltd is a cloud consulting & SI company. Their small team is in Sofia, Bulgaria; Plovdiv, Bulgaria; London, United Kingdom and Katy, Texas and offers cloud consulting & SI, IT managed services, custom software development, Artificial Intelligence, and more.Read More
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10$75,000+250 - 999 employeesСофия, BulgariaRead More
Scalefocus is a provider of custom software solutions with 700+ employees and 7 delivery locations in Bulgaria, North Macedonia, and Türkiye. Founded in 2012, the company partners with clients across various sectors, including IT, Financial Services, Energy & Utilities, Aviation, iGaming, and others. With 500+ successful projects in 26 countries, Scalefocus has delivered transformative results for 300+ clients, including Fortune 500 companies, innovative start-ups, and established leaders.
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CuradenIndustries
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11$5,000+10 - 49 employeesPlovdiv, BulgariaPlatform Devs is a small custom software development firm founded in 2009. Their team specializes in custom software development, enterprise app modernization, IT managed services, web development, and more. The company is based in Plovdiv, Bulgaria.Read More
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Deal Direct Financial SolutionsIndustries
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12$1,000+10 - 49 employeesSofia, BulgariaMaxSoft is a small software development company. In Sofia, Bulgaria, the agency was established in 2014. Their team specializes in Custom Software Development, Mobile App Development, Web Development, and Other Application Development.Read More
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13$25,000+50 - 249 employeesPlovdiv, BulgariaRead More
Founded in 2016, CodeCoda Ltd. is a development company based in Plovdiv, Bulgaria with a secondary location in Dublin. They have a team of 17 employees who provide custom software development, web development, mobile app development, and e-commerce development services. They work with midmarket and small businesses in the business services, consumer product, and financial services industries.
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14$1,000+50 - 249 employeesTroyan, BulgariaIT staff augmentation company TSD Group was established in 2007. The agency offers IT staff augmentation, Custom Software Development, and IT managed services and has a midsize team. The agency is in Troyan, Bulgaria and Sofia, Bulgaria.Read More
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15$10,000+10 - 49 employeesSofia, BulgariaSkillo® is an IT staff augmentation company. Established in 2018, the team focuses on IT staff augmentation, Custom Software Development, Artificial Intelligence, Corporate Training & Coaching, and more. Their small agency is in Sofia, Bulgaria and London, England.Read More
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16$25,000+50 - 249 employeesSofia, BulgariaDroxic is a software development firm. Established in 2012, the midsize company is in Sofia, Bulgaria; Niš, Serbia and Sofia, Bulgaria. Their services include Custom Software Development, Web Development, IT strategy consulting, Mobile App Development, and more.Read More
Clients
Grohe, HMD, CNN, Viessmann, British Airways -
17$1,000+2 - 9 employeesSofia, BulgariaCode Badgers is a web design agency. Established in 2022, the small firm is headquartered in Sofia, Bulgaria. Their team offers web design, ux/ui design, IT strategy consulting, web development, and more.Read More
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HypergenIndustries
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18$5,000+10 - 49 employeesVarna, BulgariaIBoris, a custom software development firm, is located in Varna, Bulgaria and Kalmthout, Belgium. The small agency was established in 2012. Their services include custom software development.Read More
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19$1,000+10 - 49 employeesPlovdiv, BulgariaRead More
Elders Ltd. is a development agency based in Plovdiv, Bulgaria. Their team of over 10 employees serves firms of all sizes in industries such as advertising, IT, media, and e-commerce. Founded in 2016, they offer custom software, mobile app, e-commerce, and wearable app development services.
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MarketVisionIndustries
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20$5,000+10 - 49 employeesSofia, BulgariaEstablished in 2020, Kodin Soft is a web development company. The company specializes in web development, custom software development, and application management & support and has a small team.Read More
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21$5,000+2 - 9 employeesBlagoevgrad, BulgariaRead More
Code Plus Ltd. is a .NET development agency located in Blagoevgrad, Bulgaria. Founded in 2015, they have four employees specializing in web and mobile app solutions, custom software development and digital marketing. They work for various global businesses, particularly in the consumer products and hospitality industries.
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VetPartners LtdIndustries
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22$10,000+2 - 9 employeesPlovdiv, BulgariaSkillAbility Soft Ltd. Is a Plovdiv, Bulgaria-based cloud consulting & SI company. The firm focuses on cloud consulting & SI, custom software development, web development, mobile app development, and more and is small.The firm was founded in 2021.Read More
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23$10,000+10 - 49 employeesPlovdiv, BulgariaEVLabs is an IT staff augmentation company located in Plovdiv, Bulgaria. The small team provides IT staff augmentation, Custom Software Development, Web Development, and UX/UI Design. The firm was established in 2021.Read More
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24$1,000+10 - 49 employeesSofia, BulgariaIntway is a small software development company. They focus on Custom Software Development, Enterprise App Modernization, IT staff augmentation, IT strategy consulting, and more and were established in 2021. The agency is headquartered in Sofia, Bulgaria.Read More
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25$5,000+10 - 49 employeesVeliko Tarnovo, BulgariaRead More
Reflection Infosys is an IT company based in Veliko Tarnovo, Bulgaria. The company, founded in 2010, has a team of more than ten that provides custom software development, web development, mobile app development, UX/UI design, IT strategy consulting, AI, blockchain, application management & support, and enterprise app modernization services. Reflection Infosys serves small and larger-sized companies in various industries.
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KUKUIIndustries
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26$50,000+10 - 49 employeesSofia, BulgariaWebsite development company Ever Technologies was founded in 2017. Their small team is based in Sofia, Bulgaria. Their services include Web Development, Custom Software Development, E-Commerce Development, and Mobile App Development.Read More
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Nabo As (Norway)Industries
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27$25,000+50 - 249 employeesSofia, BulgariaStaffing company Expert Allies was founded in 2021. The firm provides staffing and has a midsize team.Read More
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28Undisclosed50 - 249 employeesSofia, BulgariaRead More
Motion Software is a custom software development firm. The small Sofia, Bulgaria-based team specializes in custom software development, blockchain, e-commerce development, IT staff augmentation, and more. The agency was founded in 2015.
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29$5,000+10 - 49 employeesSofia, BulgariaKey Development is a small custom software development firm in Sofia, Bulgaria. Established in 2014, the team specializes in Custom Software Development, Web Development, E-Commerce Development, Mobile App Development, and more.Read More
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30$5,000+2 - 9 employeesSofia, BulgariaLumicaSoft, a web development company, was established in 2022. The small Sofia, Bulgaria-based team focuses on web development.Read More
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