Bharath Heavy Electricals Ltd (BHEL)
National Thermal Power Corporation (NTPC)
Telangana State Power Generation Corporation Ltd (TSGENCO)
Andhra Pradesh Power Generation Corporation Ltd (APGENCO)
The Singareni Collieries Company Ltd (SCCL)
Karnataka Power Corporation Ltd (KPCL)
Ramagundam Fertilizers & Chemicals Ltd (RFCL)
Tamil Nadu Generation & Distribution Corporation Ltd (TANGEDCO)
Roads & Buildings Department, Government of Telangana

JSW Energy
JSW Steel
Sembcorp Energy India Ltd (SEIL)
Gayatri Energy Ventures
PCP International Ltd
EDAC Engineering Ltd
Voltas
Green-Sol Power Systems Private Limited
Thermax Limited
Jindal Power Limited

Attarat Operation and Maintenance Company (OMCO)