EnBW Kundenservice GmbH (KSG) Germany

ENEL d.o.o. Beograd Serbia

EnergyAustralia Australia

EnergyICT n.v. Belgium

enexoma AG Germany

ERDF France

ESMIG (European Smart Metering Industry Group) Belgium

Essent Netwerk The Netherlands

EuroDCS Energiedaten AG Germany

Gas Natural SDG, S. A. Spain

General Electric Company U.S.A.

Genus Power Infrastructures Ltd. India

GESA ENDESA España

GNARUS ENGINEERING Services LTD. Hungary