# Companies with in-house R&D headquartered in Bulgaria
Tamtam tracks 28 companies with in-house R&D headquartered in Bulgaria. This list ranks all of them by number of employees on LinkedIn, led by EGT Digital, Euro Games Technology Ltd. (EGT) and Lufthansa Technik Sofia. Their median headcount is 321. Half of them were founded in 2003 or later. The most common headquarters are Sofia (20).
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.
π§π¬ Bulgaria Β· 28 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [EGT Digital](https://www.tamtam.ai/c/egt-digital) (egt-digital.com)
A tech company specializing in online gaming products, including Sportsbook, Casino, and Lottery games, along with an all-in-one iGaming platform | Software Development | π§π¬ Sofia | 1,157 | |
| 2 | [Euro Games Technology Ltd. (EGT)](https://www.tamtam.ai/c/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 | Gambling Facilities and Casinos | π§π¬ Sofia | 1,073 | 2002 |
| 3 | [Lufthansa Technik Sofia](https://www.tamtam.ai/c/lufthansa-technik-sofia) (lufthansa-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 | Aviation and Aerospace Component Manufacturing | π§π¬ Sofia | 825 | 2007 |
| 4 | [Technical University of Sofia](https://www.tamtam.ai/c/technical-university-of-sofia) (tu-sofia.bg)
Education institution offering accredited degree programs in various fields, including engineering and management, with international recognition and a diverse student body | Higher Education | π§π¬ Sofia | 802 | |
| 5 | [Commerzbank Digital Technology Centre Bulgaria](https://www.tamtam.ai/c/commerzbank-digital-technology-centre-bulgaria) (sofia.commerzbank.bg)
A global leader in banking, specializing in digital transformation through innovative technologies to provide efficient, secure, and tailored services to clients | IT Services and IT Consulting | π§π¬ Sofia | 773 | 2020 |
| 6 | [Amusnet](https://www.tamtam.ai/c/amusnet) (amusnet.com)
Innovative cross-platform solution delivering ultimate player experience with a wide range of casino games, including Video Slots, Live Casino, and Keno | Software Development | π§π¬ Sofia | 732 | |
| 7 | [CMS SpA](https://www.tamtam.ai/c/cms-spa) (cms.it)
Manufacturer of machinery and systems for machining various materials, providing customized solutions based on customer production needs and technological innovations | Machinery Manufacturing | π§π¬ Zogno | 554 | |
| 8 | [ICB](https://www.tamtam.ai/c/icb) (icb.bg)
A leading provider of high-quality software and consulting services in management, IT, software design, maintenance, support, training, and process optimization | IT Services and IT Consulting | π§π¬ Sofia | 552 | 1996 |
| 9 | [SiteGround](https://www.tamtam.ai/c/siteground) (siteground.com)
A global web hosting leader known for innovative products, powering over 3 million domains Recognized for excellence in team and technology | IT Services and IT Consulting | π§π¬ Sofia | 489 | |
| 10 | [Medical University-Varna](https://www.tamtam.ai/c/medical-university-varna) (mu-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 | Higher Education | π§π¬ Varna | 475 | 1961 |
| 11 | [Comelit Group S.p.A.](https://www.tamtam.ai/c/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. | Appliances, Electrical, and Electronics Manufacturing | π§π¬ Rovetta S. Lorenzo | 470 | 1956 |
| 12 | [Bosch Bulgaria](https://www.tamtam.ai/c/bosch-bulgaria) (bosch.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 | IT Services and IT Consulting | π§π¬ Sofia | 399 | |
| 13 | [SMI (Smigroup)](https://www.tamtam.ai/c/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 | Machinery Manufacturing | π§π¬ San Giovanni Bianco | 334 | 1987 |
| 14 | [Shelly Group](https://www.tamtam.ai/c/shelly-group) (shelly.com)
Innovative technology holding group developing high-quality IoT products with user needs in mind, spanning multiple subsidiaries and global markets | IT Services and IT Consulting | π§π¬ Sofia | 321 | 2004 |
| 15 | [EnduroSat](https://www.tamtam.ai/c/endurosat) (endurosat.com)
Design, manufacture, and operation of advanced satellites for low earth orbit missions, providing streamlined space infrastructure and mission management for global customers. | Aviation and Aerospace Component Manufacturing | π§π¬ Sofia | 287 | 2015 |
| 16 | [Software Group](https://www.tamtam.ai/c/software-group) (softwaregroup.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 | Software Development | π§π¬ Sofia | 272 | |
| 17 | [CSoft](https://www.tamtam.ai/c/csoft) (csoft.bg)
Innovative provider of advanced technology information systems and high-quality maintenance services, offering efficient IT solutions for effective management and data processing | Software Development | π§π¬ Varna | 233 | 1991 |
| 18 | [TechnoLogica](https://www.tamtam.ai/c/technologica) (linktr.ee)
Innovative Bulgarian technology partner specializing in custom software development, security solutions, 3D solutions, and specialized training in various fields | IT Services and IT Consulting | π§π¬ Sofia | 229 | 1990 |
| 19 | [AMPECO](https://www.tamtam.ai/c/ampeco) (ampeco.com)
Leader in EV charging management providing innovative software solutions for efficient energy usage and seamless charging experience, tailoring to various businesses | IT Services and IT Consulting | π§π¬ Sofia | 192 | 2018 |
| 20 | [Smart IT - Smart Innovative Technologies](https://www.tamtam.ai/c/smart-it-smart-innovative-technologies) (smartit.bg)
Technological hub supporting 8300 employees across Europe with expertise in software solutions and ICT infrastructure, specializing in fintech onboarding platform development | IT Services and IT Consulting | π§π¬ Sofia | 125 | 2014 |
| 21 | [ΠΡΠ΅ΡΡΠΈΠΆ-96 ΠΠ \| Prestige-96 AD](https://www.tamtam.ai/c/96-prestige-96-ad) (prestige96.bg)
One of Bulgaria's leading food producers specializing in biscuits, wafers, and mini cakes, prioritizing quality, innovation, and consumer well-being | Food and Beverage Manufacturing | π§π¬ Veliko Tarnovo | 90 | 1996 |
| 22 | [Tiger Technology](https://www.tamtam.ai/c/tiger-technology) (tiger-technology.com)
Specializing in on-premises-first hybrid cloud workflows, developing data management software solutions for optimal storage, workflow enhancement, and cost-effectiveness | Software Development | π§π¬ Sofia | 87 | 2004 |
| 23 | [Abrites](https://www.tamtam.ai/c/abrites) (abrites.com)
An innovative provider of diagnostic equipment for electronics in vehicles, including cars, trucks, bikes, and other types of vehicles | Software Development | π§π¬ Sofia | 62 | 2005 |
| 24 | [Ontotext](https://www.tamtam.ai/c/ontotext) (ontotext.com)
Ontotext helps enterprises manage data efficiently with GraphDB, semantic knowledge graphs, and content analytics, enabling powerful text analysis and information delivery | Software Development | π§π¬ Sofia | 47 | 2000 |
| 25 | [Quanterall](https://www.tamtam.ai/c/quanterall) (quanterall.com)
Specializing in custom software and hardware solutions using functional programming languages like Erlang, Elixir, and Haskell, serving industries globally since 2003 | Software Development | π§π¬ Varna | 21 | 2003 |
| 26 | [Samel-90 PLC](https://www.tamtam.ai/c/samel-90-plc) (samel90.com)
A company with over 56 years experience in design and manufacturing of defense and civil products, including communication systems and counteraction equipment | Defense and Space Manufacturing | π§π¬ Samokov | 20 | 1964 |
| 27 | [Antarta Space Food](https://www.tamtam.ai/c/antarta-space-food) (antarta.eu)
Specializing in high-tech food products and supplements for extreme conditions, including space travel and expeditions, with a focus on nutrition and convenience | Food and Beverage Services | π§π¬ Sofia | 12 | 2021 |
| 28 | [KΓ€rcher EOOD](https://www.tamtam.ai/c/karcher-eood) (kaercher.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 | Machinery Manufacturing | π§π¬ Sofia | 2 | |
## 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.
## More company lists in Bulgaria
- [The largest companies in Bulgaria](https://www.tamtam.ai/l/largest-companies-bulgaria) (363)
- [Multinational companies in Bulgaria](https://www.tamtam.ai/l/multinational-companies-bulgaria) (105)
- [IT services companies in Bulgaria](https://www.tamtam.ai/l/it-services-companies-bulgaria) (51)
- [Software Development companies in Bulgaria](https://www.tamtam.ai/l/software-development-companies-bulgaria) (47)
- [Financial services firms in Bulgaria](https://www.tamtam.ai/l/financial-services-firms-bulgaria) (38)
- [IT Services and IT Consulting companies in Bulgaria](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-bulgaria) (37)
- [Critical infrastructure operators in Bulgaria](https://www.tamtam.ai/l/critical-infrastructure-operators-bulgaria) (36)
- [Retail chains in Bulgaria](https://www.tamtam.ai/l/retail-chains-bulgaria) (35)
- [Companies with a mobile app in Bulgaria](https://www.tamtam.ai/l/companies-with-mobile-app-bulgaria) (28)
- [Manufacturers in Bulgaria](https://www.tamtam.ai/l/manufacturers-bulgaria) (27)
## The same list elsewhere
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
---
Source: https://www.tamtam.ai/l/r-and-d-companies-bulgaria