Members A-AL
| Member | |
| 50Hertz Transmission GmbH | |
| A. En. Slovensko s.r.o. | |
| Aarhus Energy A/S | |
| AB "Energijos skirstymo operatorius" | |
| AB “Ignitis gamyba“ | |
| AB Orlen Lietuva | |
| AB Panevezio energija | |
| AB "Vilniaus Šilumos Tinklai" | |
| Akademiska Hus | |
| Akershus Energi Vannkraft AS | |
| Aktiebolaget Strömstadsbyggen | |
| Aktieselskapet Saudefaldene | |
| Alpha Energy ApS | |
| Alpiq AG | |
| Aneo AS | |
| Anora Group Oyj |