1. Tamil Nadu State Electricity Board.
2. Maharashtra State Electricity Board.
3. Gujarat Electricity Board.
4. Badarpur Thermal Power Project.
5. Balco Captive Power Plant
6. National Thermal Power Corporation Ltd.
7. Andhra Pradesh State Electricity Board.

1. HOLTEC Consulting Pvt. Ltd.
2. National Mineral Development Corporation Ltd.
3. Development Consultants  Ltd.
4. MECON
5. National Thermal Power Corporation Ltd.
6. Neyveli Lignite Corporation Ltd.

1. Aditya Cement Ltd.
2. Vikram Cement Ltd.
3. Lafarge India Ltd.
4. Chettinad Cement Corporation Ltd
5. Gujarat Ambuja Cement Ltd.
6. Associated Cement Co. Ltd.
7. Narmada Cement Ltd.
8. Rajashree Cement.
9. Raymond Cement Ltd.
10. Ultratech Cement.
11. Kalyanpur Cement Ltd.
12. J.K.Lakshmi Cement Ltd.

1. Neyveli Lignite Corpn. Ltd.
2. Coal (I) Ltd.
3. National Minerals Development Corporation Ltd

1. Rashtriya Chemicals & Fertilizers Ltd.
2. National Fertilizers Ltd.
3. Indian Farmers & Fertilizers Co. Ltd.
4. Fertilizers & Chemicals Travancore Ltd.

1. Hindustan Petroleum Corpn. Ltd.
2. Indian Oil Corporation Ltd.
3. Indian Petrochemicals Ltd.
4. Oswal Petrochemicals Ltd.

1. Gujarat Alkalies & Chemicals Ltd.
2. Tuticorin Alkalies & Chemicals Ltd.
3. Alkyl Amines.
4. United Phosphorous Ltd
5. Gujarat Heavy Chemicals Ltd
6. J.K.Synthetics.
7. Mysore Polymers Ltd
8. Pearl Polymers
9. Inzofil Chemicals Ltd.

1. Mukund Iron &Steels Ltd.
2. Jindal Iron & Steels Ltd.
3. Nippon Denro Ispat Ltd.
4. Steel Authority of India Ltd.
5. Rourkela Steel Plant.
6. Visakhapatnam Steel Plant

1. Vikram Tyres.
2. Srichakra Tyres.
3. MRF Tyres
4. Ceat Tyres
5. Modi Tyres
6. J.K.Tyres.

1. Anjala Sugars Co-Op. Ltd.
2. Riga Sugars.
3. Nandi Sugars Co-operative Ltd
4. Subramanian Siva Sugars Ltd
5. Perambalur Sugars.
6. Vidarbha Sugar Mills Ltd.
7. The Amravati Co-op. Sugar Mills Ltd.
8. Shimbaoli Sugar Mills Ltd.

1. Bombay Dying.
2. Century Textiles.(N)

1. Central Railway
2.  Western Railway
3. Eastern Railway
4. Northern Railway  

1. National Cash Register (NCR) – Australia
2. Godrej Industries Ltd
3. Avenue Graphics4. Vishal Arts
5. Bajaj Auto Ltd
6. Medica. Microtech Engineering
8. Cabot India Ltd
9. International Creations
10. NTPC (Kaiga) & many more….