Teshi Engineers & Sales Promoters Private Limited

Aditya Birla Group

Jindal Steel and Power

JSW

ITC Limited

Coal India

NTPC

TATA

Larsen & Toubro

Neo Structo Construction Ltd.

BHEL-Bharat Heavy Electricals Limited

ONGC-Oil and Natural Gas Corporation

NALCO - National Aluminium Company Limited

Vedanta

GACL - Gujarat Alkalies and Chemicals Limited

SAIL - Steel Authority of India Limited

NDIAN OIL CORPORATION LIMITED (IOCL)