International organisations:
The United Nations Development Programme
The United Nations Economic Commission for Europe
The Regional Environmental Center, Budapest
The New York University School of Law
Open Society Foundation-Sofia

International Companies
IC consulenten Austria
Sir William Halcrow & Partrners Ltd Great Britain
Milieu Ltd - Belgium
NAU GmbH - Germany
Tank-Und Energietechnik - Germany
Leitl Spannton GmbH - Germany
Bauhutte Leitl-Werke GmbH - Germany
Zorluteks Tekstil Ticaret - Turkey
Orgaz Gaz Aletleri - Turkey
Ssangyong Motor Company - Korea

State and Local Self-Government Institutions:
The Ministry for Environment and Water of Bulgaria
The Ministry for Agriculture and Forests of Bulgaria
The National Ecological Trust Fund - Bulgaria
The Municipalities of Kardjali, Troyan, Botevgrad, Bobovdol,Rodhopi,Plovdiv

National Companies:
Termik - Construction
TorgoExpress - Import/Export
Hercu - Production
Stroyinvest Bulgaria-Construction
Evrotrade building- construction
National Canning Institute - Research Center
Vini Sliven - Wine production
Festa Holding - Trading company
ZK Kristal- sugar production Vidona - cooking oil production