| SScientAct Sofia, BulgariaResearch & Technology | IT services: consulting, software development, Internet and support Агрометеорология Метеорологични Станции Хидрометеорология | |
| TCTesting Center GLOBALTEST Sofia, BulgariaResearch & Technology | Health and social work services Medical equipments, pharmaceuticals and personal care products Лабораторни Тестове Химически Анализи Микробиологични Изследвания | |
| | IT services: consulting, software development, Internet and support Education and training services Обучение По Програмиране Софтуерно Тестване Java | |
| | IT services: consulting, software development, Internet and support Education and training services Обучение За Програмисти Програмиране C | |
| | IT services: consulting, software development, Internet and support Education and training services Роботика Програмиране Училище По Роботика | |
| | Education and training services Flight Training Pilot Training Cabin Crew Training | |
| TBTNS BBSS SEE Sofia, BulgariaResearch & Technology | IT services: consulting, software development, Internet and support Business services: law, marketing, consulting, recruitment, printing and security Market Research Consumer Insights Data Analytics | |
| ISInternational Scientific Events Burgas, BulgariaResearch & Technology | IT services: consulting, software development, Internet and support Business services: law, marketing, consulting, recruitment, printing and security | |
| BOBulgarian Online Research Sofia, BulgariaResearch & Technology | IT services: consulting, software development, Internet and support Business services: law, marketing, consulting, recruitment, printing and security Online Market Research Пазарни Проучвания Digital Data Collection | |
| SBSofia Bio Sofia, BulgariaResearch & Technology | Medical equipments, pharmaceuticals and personal care products Research and development services and related consultancy services | |