| 1 | | Primary Pl. Bulgaria 1, NDK | Sofia |  BG | | Oil & Energy | N/A | Ivaylo Stefanov | CEO at WON - waste oil net |
| 2 | | Primary 290 Okolovrasten pat, fl. 2 | Sofia | BG | | Oil & Energy | N/A | Vasil Merdzhanov | Co-Founder & COO at Zekalabs |
| 3 | | Primary 10 Vihren Street | Sofia | BG | | Oil & Energy | N/A | Cris Neish, CMRP, CEM | General Manager at GCR Inc |
| 4 | | Primary Sofia | Sofia | BG | | Oil & Energy | N/A | Алекс Богуш | работник at Енергиен Пазар ООД |
| 5 | | Primary Lachezar Stanchev 3 Str. | Sofia | BG | | Oil & Energy | N/A | Andreas Triantopoulos | CEO, EKO Bulgaria EAD. - Hellenic Petroleum Group of Companies |
| 6 | | Primary 161 "6-ti Septemvri" blvd | Plovdiv | BG | | Oil & Energy | N/A | Сергей Амбарцумян | Оператор – ЕЛ ИНЖЕНЕРИНГ ООД |
| 7 | | Primary 16A Zlaten rog str., floor 9, Lozenetz | Sofia | BG | | Oil & Energy | N/A | Rayna Hristova | Nuclear engineer at AtomToploProekt Ltd |
| 8 | | Primary 43, Cherni Vrah Str. | Sofia | BG | | Oil & Energy | N/A | georgi tatarski | chief executive officer and member of management board |
| 9 | | Primary 43 Cherni Vrah Blvd. | Sofia | BG | | Oil & Energy | N/A | Burak Cagatay | CEO at Petrol Gas |
| 10 | | Primary 22A, Bratya Miladinovi Str. | Varna | BG | | Oil & Energy | N/A | christ frank | Managing Director |
| 11 | | Primary 10, Vihren str. | Sofia | BG | | Oil & Energy | N/A | Maya Georgieva | Chief expert at Risk Engineering |
| 12 | | Primary | Veliko Tarnovo | BG | | Oil & Energy | N/A | Plamena Panova | Sales & Marketing Director at Bolyarski Dom |
| 13 | | Primary | Kovachevo | BG | | Oil & Energy | N/A | Kostadin KOKOV | IWE/EWE at TPP Maritsa East 2 PLC |
| 14 | | Sofia, Sofija-Grad 1000, BG | Sofia | BG | | Oil & Energy | N/A | Rozina Svetozarova | Gas Projects Department at Bulgarian Energy Holding EAD |
| 15 | | 143 Vasil Levski str. Tristan 02 ltd. | Mramor | BG | | Oil & Energy | N/A | stanimir trifonov | Marketing Director |
| 16 | | Primary 10 Vihren Street | Sofia | BG | | Oil & Energy | N/A | Petar Manchev | Helping organizations create value through better decisions |
| 17 | | Burgas, Burgas, BG | Burgas | BG | | Oil & Energy | N/A | N/A | N/A |
| 18 | | Primary Macgahan Str.,Bl. 71 | Sofia | BG | | Oil & Energy | N/A | Zanka Gancheva | Innovation Strategist | Entrepreneur | New Product Development Passionnate |
| 19 | | Primary Office: 2 “Hristo Belchev” str. | Sofia | BG | | Oil & Energy | N/A | Valentin Kunev | -- |
| 20 | | 49 Bulgaria Blvd. 11-12 Floors, Sofia, 1404, Bulgaria | Sofia | BG | | Oil & Energy | N/A | Mariano Sancho Blanco | VP IR, Corporate & Business Development at EBIOSS Energy |
