Energy efficiency
| Association for the Conservation of Energy - ACE |  |
www.ukace.org | Energy efficiency, United Kingdom | English |
| Institut Català d’Energie - ICAEN |  |
www.icaen.net | Energy efficiency, Spain | Catalan |
| Ecoserveis |  |
www.ecoserveis.net | Energy efficiency, Renewable energy, Spain | Spanish |
| Lithuanian Energy Institut - LEI |  |
www.lei.lt | Energy efficiency, Lithuania | English, Lithuanian |
| Redirecting Urban areas developpement towards Sustainable Energy - RUSE |  |
www.ruse-europe.org | Energy efficiency, Europe, Financing | English, Polish, Lithuanian, Slovak, Czech, Bulgarian |
| Building in Europe Local Intelligent Energy Forums - BELIEF |  |
www.belief-europe.org | Energy efficiency, Europe | English |
| Municipal Energy Efficiency Network - EcoEnergy |  |
www.ecoenergy-bg.net | Bulgaria, Energy efficiency | English, Bulgarian |
| Center for Energy Efficiency - EnEffect |  |
www.eneffect.bg | Bulgaria, Energy efficiency | English , Bulgarian |
| Display Campaign |  |
www.display-campaign.org | Building, Energy efficiency, Europe | English, French |
| .European Forum for Renewable Energy Sources |  |
www.eufores.org | Energy efficiency, Europe, Renewable energy | English, |