• GE Power India Ltd.
• Jaiprakash Associates Ltd.
• Bharat Heavy Electricals Ltd.
• G.E. Boving, U.K
• Alstom Projects India Ltd.
• Punj Lloyd Ltd.
• LANCO
• Andritz Hydro

• National Thermal Power Corporation (N.T.P.C.)
• Kirloskar Brothers Ltd.
• Gujurat Ambuja Ltd.
• Ultratech Cement Ltd.
• Thyssen Krupp Industries Ltd.
• Voith
• Indiabulls Power Limited.

• Voith Hydro ( Ana Cua Power Project Argentina")
• Da Nhim Hydro Power Plant, Vietnam (Through Ge Power India Ltd)
• Bharat Heavy Electricals, LIBYA
• P.T. Perkasa Indobaja, Indonesia
• Abul Khair Steel Product Ltd., Bangladesh
• Apollo Ispat Complex, Bangladesh
• BHEL Bhopal - Mangdechu HEP, Bhutan

• Thermax Limited Pune 25MW Coal based captive cogeneration power plant at SAMAL, Phillipines
• Nam Theun One, Laos Cambodia ( Through Andritz Hydro)
• National Thermal Power Corporation (N.T.P.C.)
• Konkola Copper Mines PLC, Zambia
• Global Supplies (UAE) FZE, for Essar Steel Middle East FZE,
• Dubai, UAE
• Upper Tamakoshi Hydropower Limited (UTKHPL), Nepal Electricity Authority (NEA)

• Inteco Special Melting Technologies (India) Pvt Ltd. Noida
• Bharat Forge Ltd
• Bharat Heavy Electricals Ltd
• Arcelor Mittal Nippon Steel India Ltd (formerly known as "Essar Steel/Essar Group").
• Ispat Industries Ltd., Dolvi
• Jindal Group

• Metal and Steel Factory, Ishapore
• Tata Iron and Steel Company Ltd (T.I.S.C.O.)
• Steel Authority of India (S.A.I.L.)
• Siemens VAI Metals Technologies, India
• Visakhapatnam Steel Plant
• Srmb Srijan Private Limited

• CENTRAL ORGANISATION OF MODERENISATION OF WORKSHOPS, NEW DELHI (C.O.F.M.O.W.)
• South Eastern Railway
• Western Railway
• Southern Railway

• Central Railway
• Bombardier Transportation India Ltd
• Railway Coach Factory, Kapurthala
• Integral Coach Factory, Permabur
• C.E.E.B.C.O. (Commercial Engineers and Body Builders Pvt Ltd)

Heavy Engineering / Capital Equipment

• Larsen and Toubro Limited
• Godrej and Boyce Limited
• Ashok Leyland Ltd
• Indian Oil Corporation

Naval/Shipyards

• Naval Base, Kochi, India
• Director General Naval Project (DGNP), Vishakapatnam, India
• Cochin Shipyard, Cochin India
• Mazgaon Docks, Mumbai, India

Nuclear Power

• Nuclear Power Corporation of India (NPCIL)
• IGCAR Kalkappam, India
• Bhabha Atomic Research Centre, Mumbai, India

Space

• Satish Dhawan Space Centre