| Knollconsult Umweltberatung GmbH | Eko Energia | Menert therm, s.r.o. |
| 4ward Energy Research GmbH | VIVENA | Cmc, spol. s.r.o., Detva |
| Kompetenzzentrum Naturraummanagement GmbH | Lehmann-Agroenergia | BIOPALIVÁ, spol. s r.o. |
| Tageszeitung für erneuerbare Energie und Nachhaltigkeit | Bioeko Osnowo | BIOENERGO, s.r.o., Ružomberok |
| Convenant of Mayors | Pure Energy | Association for the use of renewable and alternative sources |
| Österreichischer Biomasse-Verband | Bio Invest | Ekoenergia, Rajec |
| ARGE Kompost & Biogas | Biomasa Partner | Slovak Renewable Energy Agency |
| The Polish Chamber of Biomass | BioEn Ventures B.M.V Sp. z o.o. Sp. K., Poznań | Alternative energy, s.r.o., Bošany |
| Online marketplace for biomass | Consorzio Italiano Bio-Gas | Miskantus d.o.o. |
| Association "Energy and environment conservation" | Renael - Rete Nazionale delle Agenzie Energetiche Locali | Biohica d.o.o. |
| The Polish Economic Chamber of Renewable Energy | AIEL - Italian Ass. of Energy from Wood | Komunala d.o.o. |
| Polish Biogas Association | Italian Producer of Renewable Energy Federation (FIPER) | Biomasa Jakoša |
| PGNiG Termika | Coordinamento Fonti Rinnovabili ed Efficienza Energetica | Lea Pomurje |
| ECOENERGIA | Gruppo Sisam | Fotovolt d.o.o. |
| Woodwaste | Gruppo Tea | Regional Energy Agency Moravian-Silesian region |
| ManagEnergy | Zentrales Agrar-Rohstoff Marketing und Energie-Netzwerk | Asap Control |
| Berger Elektrotechnik GmbH | Fab4Minds | Fida Installationen GmbH |
| Fida Installationen GmbH | Helmut Bauer Automatisierungstechnik | Kössler GmbH & Co. KG |
| Pani Wohndesign und Lebensstil | Stark GmbH | Pollmann International GmbH |
| Reißmüller Baugesellschaft mbH | Krenn Schatzinsel GmbH, Heizung - Bad - Fliesen | Energie Mobil GmbH |
