The companies with in-house R&D in Bulgaria are predominantly mid-sized firms in software development, IT services, and manufacturing. Notable examples include EGT Digital, specializing in online gaming products, and Euro Games Technology Ltd. (EGT), a global gaming manufacturer. Lufthansa Technik Sofia is a leading MRO facility for aircraft, while Commerzbank Digital Technology Centre Bulgaria focuses on digital transformation in banking. EnduroSat designs and operates advanced satellites, and SMI (Smigroup) manufactures bottling and packaging solutions.
A significant concentration of these companies, including EGT Digital, Euro Games Technology, Lufthansa Technik Sofia, and Commerzbank Digital Technology Centre Bulgaria, are headquartered in Sofia. This indicates a strong hub for R&D activities within the capital city, spanning various technology-driven sectors.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
EGT Digitalegt-digital.com
A tech company specializing in online gaming products, including Sportsbook, Casino, and Lottery games, along with an all-in-one iGaming platform |
1,157 | |||
| 2 |
Euro Games Technology Ltd. (EGT)egt.com
Global gaming manufacturer with diverse product range, including slots, multiplayer solutions, online gaming, and casino management systems, operating in over 85 countries |
1,073 | |||
| 3 |
Lufthansa Technik Sofialufthansa-technik.com
A leading MRO facility in Europe with over 1,000 employees, specializing in line and base maintenance services for Airbus and Boeing narrowbody aircraft since 2007 |
825 | |||
| 4 |
Technical University of Sofiatu-sofia.bg
Education institution offering accredited degree programs in various fields, including engineering and management, with international recognition and a diverse student body |
802 | |||
| 5 |
Commerzbank Digital Technology Centre Bulgariasofia.commerzbank.bg
A global leader in banking, specializing in digital transformation through innovative technologies to provide efficient, secure, and tailored services to clients |
773 | |||
| 6 |
Amusnetamusnet.com
Innovative cross-platform solution delivering ultimate player experience with a wide range of casino games, including Video Slots, Live Casino, and Keno |
732 | |||
| 7 | 554 | ||||
| 8 | 552 | ||||
| 9 |
SiteGroundsiteground.com
A global web hosting leader known for innovative products, powering over 3 million domains Recognized for excellence in team and technology |
489 | |||
| 10 |
Medical University-Varnamu-varna.bg
High-tech university with a half-century of history, offering quality medical training with modern facilities, e-learning, and a focus on international partnerships |
475 | |||
| 11 |
Comelit Group S.p.A.comelitgroup.it
Design and manufacture of video door entry, access control, CCTV, security, home automation, and fire detection systems worldwide. |
470 | |||
| 12 |
Bosch Bulgariabosch.bg
Global technology and services provider with a focus on IoT and digital projects, offering innovative products and services to improve quality of life worldwide |
399 | |||
| 13 |
SMI (Smigroup)smigroup.it
Innovative manufacturer of high-tech bottling and packaging solutions, offering efficient, reliable, and flexible equipment for a wide range of products globally |
334 | |||
| 14 |
Shelly Groupshelly.com
Innovative technology holding group developing high-quality IoT products with user needs in mind, spanning multiple subsidiaries and global markets |
321 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 15 |
EnduroSatendurosat.com
Design, manufacture, and operation of advanced satellites for low earth orbit missions, providing streamlined space infrastructure and mission management for global customers. |
287 | |||
| 16 |
Software Groupsoftwaregroup.com
Global technology company specialized in digitalization and integration solutions for financial service providers, assisting in digital transformation, extending outreach and improving operational efficiency worldwide |
272 | |||
| 17 | 233 | ||||
| 18 |
TechnoLogicalinktr.ee
Innovative Bulgarian technology partner specializing in custom software development, security solutions, 3D solutions, and specialized training in various fields |
229 | |||
| 19 |
AMPECOampeco.com
Leader in EV charging management providing innovative software solutions for efficient energy usage and seamless charging experience, tailoring to various businesses |
192 | |||
| 20 |
Smart IT - Smart Innovative Technologiessmartit.bg
Technological hub supporting 8300 employees across Europe with expertise in software solutions and ICT infrastructure, specializing in fintech onboarding platform development |
125 | |||
| 21 |
Престиж-96 АД | Prestige-96 ADprestige96.bg
One of Bulgaria's leading food producers specializing in biscuits, wafers, and mini cakes, prioritizing quality, innovation, and consumer well-being |
90 | |||
| 22 |
Tiger Technologytiger-technology.com
Specializing in on-premises-first hybrid cloud workflows, developing data management software solutions for optimal storage, workflow enhancement, and cost-effectiveness |
87 | |||
| 23 |
Abritesabrites.com
An innovative provider of diagnostic equipment for electronics in vehicles, including cars, trucks, bikes, and other types of vehicles |
62 | |||
| 24 |
Ontotextontotext.com
Ontotext helps enterprises manage data efficiently with GraphDB, semantic knowledge graphs, and content analytics, enabling powerful text analysis and information delivery |
47 | |||
| 25 |
Quanterallquanterall.com
Specializing in custom software and hardware solutions using functional programming languages like Erlang, Elixir, and Haskell, serving industries globally since 2003 |
21 | |||
| 26 |
Samel-90 PLCsamel90.com
A company with over 56 years experience in design and manufacturing of defense and civil products, including communication systems and counteraction equipment |
20 | |||
| 27 |
Antarta Space Foodantarta.eu
Specializing in high-tech food products and supplements for extreme conditions, including space travel and expeditions, with a focus on nutrition and convenience |
12 | |||
| 28 |
Kärcher EOODkaercher.com
Global leader in cleaning technology and equipment, offering a wide range of innovative and efficient solutions for home, professional, and industrial cleaning tasks worldwide |
2 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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- Financial services firms in Bulgaria 38
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- Manufacturers in Bulgaria 27