- Centre of Renewable Energy Sources
- Regulatory Authority of Energy
- Ministry of Environment and Energy
- Ministry of Infrastructure, Transport and Networks
- Ministry of Finance
- NSRF (2014 – 2020)
- IRETETH/CERTH
- Hellenic Association of Photovoltaic Companies (ΣΕΦ)
- Technical chamber of Greece
- Public Gas Company - DEPA
- Independent Power Transmission Operator
- Operator of Electricity Market
- Public Power Corporation
- Greek Association of RES electricity Producers
- Greek Solar Industry Association