PDVSA (Venezuela)
Canal de Isabel II (Spain)
ANDESPETRO
BHP Billiton
Ambulance Service (Spain)
Fire Service (France)
British Gas
OMV
Meralco
Police Service (Lebanaon)
Northern Ireland Water
Sri Lanka Telecom (Sri Lanka)
Exxon Mobil
Claro (Argentina)
Tonga Communications Corporation
Dubai Petroleum (UAE)
Telecom Fiji
Transpower
Rio Tinto
Iberdrola (Spain)
Belize Telemedia Ltd
Elektro Gorenjska (Slovenia)
Fortescue Mining Group (Australia)
NamPower
Movicel (Angola)
CELPE, CHESF, Light (Brazil)
Smart (Philippines)
TOT (Thailand)
Energie AG (Austria)
Sibir Telecom (Russia)