| Selection of memberships (in alphabetical order) |
| AEA |
Österreichische Energieagentur |
| AIA |
Association for Internal Auditors of Macedonia |
| ATDB |
Association of District Heating Companies in Bulgaria |
| ATEB |
Association of traders with electricity in Bulgaria |
| BBCE |
Bulgarian Branch Chamber of Power Engineers |
| BHRMDA |
Bulgarian Human Resources Management and Development Association |
| BIA |
Bulgarian Industrial Association |
| BPVA |
Bulgarian Photovoltaic Association |
| Bulgarian WEC |
Bulgarian National Committee to the World Energy Council |
| CEIBG |
Confederation of the Employers and Industrialists in Bulgaria |
| DBIHK |
Deutsch-Bulgarische Industrie- und Handelskammer |
| ECNWM |
Economic chamber of North-Western Macedonia |
| ECRM |
Economic Chamber of the Republic of Macedonia |
| EDSO |
European Distribution System Operators (for Smart Grids) |
| EEA |
Bulgarian Energy Efficiency Agency |
| EMI |
Energy Management Institute, Bulgaria |
| ERC |
Energy Regulatory Commission of Macedonia |
| FGW |
Fachverband der Gas- und Wärmeversorgungsunternehmen |
| GEC |
German Economic Chamber |
| IV |
Industriellenvereinigung Österreich |
| MABA |
Macedonian Austrian Business Association |
| MAKO Cigre |
Macedonian National Committee - MAKO Cigre |
| MCC |
Macedonian Chambers of Commerce |
| MGEA |
Macedonian-German Economic Association |
| MHRA |
Macedonian Human Resources Association |
| OE |
Oesterreichs Energie |
| ÖGUT |
Österreichische Gesellschaft für Umwelt und Technik |
| ORM |
Organization of Employers of Macedonia |
| OVE |
Österreichischer Verband für Elektrotechnik |
| ÖVGW |
Österreichische Vereinigung für das Gas- und Wasserfach |
| ÖWAV |
Österreichischer Wasser- und Abfallwirtschaftsverband |
| respACT |
Austrian business council for sustainable development |
| UNGC |
UN Global Compact |
| VGB |
PowerTech e.V. |
| WK NÖ |
Wirtschaftskammer Niederösterreich |
| ZEMAK |
Association of Energy Department Engineers of Macedonia |