1. Aqua-Arh OOD, Sofia, Assoc.-Prof. Dr. Dipl.-Ing. Tsocho Tsankov, Executive Director
2. Assoc.-Prof. Valery Nikolov, Chairman, Chairman of the Board of Managers of the Bulgarian Water Association
3. Varna Pro AD, Varna, Dipl.-Ing. Angel Dukov, Executive Director
4. Vodokanalproekt AD, Plovdiv, Dipl.-Ing. Angelina Aleksandrova, Executive Director
5. Vodokanalstroi OOD, Bourgas, Dipl.-Ing. Dimiter Kostov, Manager
6. Water Supply and Sewerage EAD, Bourgas, Dipl.-Ing. Gancho Tenev, Executive Director
7. Water Supply and Sewerage OOD, Vratza, Dipl.-Ing. Angel Prestoyski, Manager
8. Water Supply and Sewerage EOOD, Plovdiv, Dipl.-Ing. Krasimir Tsvetkov, Manager
9. Water Supply and Sewerage EOOD, Stara Zagora, Dipl.-Ing. Rumen Raykov, Manager
10. Assoc.-Prof. Varban Arizanov , Department of Hydrology and Engineering Geology, University of Mining and Geology “St. Ivan Rilski”, Sofia
11. Kram Complex Group EOOD, Sofia, Dipl.-Ing. Radoslav Gyorev, Executive director
12. Prof. Dr. Dipl.-Ing. Peter Kalinkov, Vice Rector for Accademic Affairs, University of Architecture, Civil Engineering and Geodesy, Sofia
13. Raicommerse Construction AD, Sofia, Dipl.-Ing. Blagoy Kozarev, Executive Director
14. Prof. Dr. Dipl.-Ing. Rumen Arsov, Dean, Faculty of Hydrotechnics, University of Architecture, Civil engineering and Geodesy, Sofia
15. SVOI-2000 OOD, Yambol, Dipl.-Ing. Stoyan Radev, Executive Director
16. Stroitelna Mehanizatsia AD, Kazanlak, Dipl.-Ing. Stefan Zhelyazkov, Director
17. Prof. Dr. Dipl.-Ing. Tenju Peychev, Vice Chairman, Bulgarian Water Association
18. Dipl.-Ing. Hristo Dyulgerov, инж. Христо Дюлгеров, Manager, Hydro-Hea OOD
19. Uconomics OOD, Sofia , Nikolay Minkov, Managing partner
' Names are listed in alphabetical order.