- AGR Group
- BFUB
- Daldrup & Söhne Joint Stock Company
- Drilling Engineering
- DSK Deutsche Steinkohle Joint Stock Company
- DMT Ltd.H
- Energieagentur NRW
- Evonik Industries
- GreenGas
- Infra Consul Ltd.H
- Interessenverband Grubengas / Association on Mine Gas (IVG)
- LAMBDA Gesellschaft für Gastechnik Ltd.
- mingas-power.com
- RWE
