Members GO-H
| Member |
| Green Voltis Sweden AB |
| Gren Eesti AS |
| GridBeyond Limited |
| GRIDFIT |
| Grøn.Ai ApS |
| Gunvor International B.V., Amsterdam, Geneva Branch |
| Gällivare Kommun |
| Hafslund Kraft AS |
| Halmstads Kommun |
| Hartree Partners Power & Gas Company (UK) Limited |
| Haugaland Kraft Energi AS |
| Hekla Energy Sp. z o.o. |
| Helgeland Kraft Holding AS |
| Helgeland Kraft Strøm AS |
| Helgeland Kraft Vannkraft AS |
| Helpvolt Instal srl |
| Helen Oy |
| HEX SAS |
| HGN Power CZ s.r.o. |
| Hofor Energiproduktion A/S |
| Hydro Energi AS |