Founded in 1886, GGEW was originally a gas plant. It now is a independent, communal utility for gas, heat and water with about 140.000 clients.
LichtBlick is a green power supplier with more than one million clients. It's an independent supplier of green electricity and gas.
Neue Energie Bendorf eG is an energy cooperative owned by about 130 citizens, cooperatives and regional companies with the aim to promote the clean energy transition.
SOLIX ist a cooperative which gives citizens the chance to be a part of the production of renewable energies.
SüdWestStrom ist an association of municipal utilities located in Tübingen and founded in 1999.