TUNNELS, CAVERNS & DAMS
- IRCON
- Hindustan Construction Co.
- Patel Engineering
- Max Infra (I) Ltd.
- Afcons Infrastructure Ltd.
- Megha Engineering
- Navayuga Engineering
- SMC Infrastructures
- N A Construction
- APCO Infratech (P) Ltd.
- East Coast Railway
- NF Railway
- Beaver Infra Consultants
- Larsen & Toubro
- Gayatri Projects Limited
- Onycon Infrastructure
- Northern Railway
- Konkan Railways
HYDRO POWER
- Uttarakhand Jal Vidyut Nigam
- Afcons Infrastructure Ltd.
- Satluj Jal Vidyut Nigam
- Himachal Pradesh Power Co.
- Patel Engineering
- Ghanaram Infraengineers
- National Hydroelectric Power Corporation
- National Thermal Power Corporation Ltd.
- SAPDC
- L&T Uttranchal Hydro Power Ltd.
- North Eastern Eletric Power Corporaton Ltd.
- Maharashtra Irrigation
MINES & SLOPES
- Coal India Ltd.
- Bharat Coking Coal Ltd.
- Eastern Coalfields Ltd.
- South Eastern Coalfields Ltd.
- Western Coalfields Ltd.
- Hindustan Copper Ltd..
- Indian Iron & steel Company Ltd.
- Mahanadi Coalfields Ltd.
- Manganese Ore (India) Ltd.
- Pyrites & Phosphate Chemicals Ltd.
- Singareni Collieries Company Ltd.
- Tata Iron & Steel Company Ltd.
- Sikkim Mining Corporation
- Hindustan Zinc Ltd.
- Uranium Corporation of India Ltd.
- Northern Coalfields Ltd.
R & D INSTITUTES
- Anna University, Chennai
- Banaras Hindu University, Varanasi
- Central Building Research Institute, Roorkee
- Central Mine Planning & Design Institute Limited, Ranchi
- Central Mining Research Institute, Dhanbad
- Directorate General of Mines Safety, Dhanbad
- Indian Bureau of Mines, Nagpur
- Indian Institute of Technology, Kharagpur
- National Institute of Technology, Surathkal
- Indian Institute of Technology, Mumbai
- Indian School of Mines, Dhanbad
- National Institute of Rock Mechanics, Bangalore
CONSTRUCTION COMPANY
- Abir Constructions Private Ltd.
- Erudite Engineers Private Ltd.
- Gammon India Ltd.
- GVK
- Hindustan Construction Company Ltd.
- Larsen & Toubro
- Marti India Ltd.
- Soma Enterprise
- Beigh Construction Company
- Megha Engineering
- Navayuga Engineering
- SMC Infrastructures
- N A Construction
- APCO Infratech (P) Ltd.
- Hindustan Construction Co.
- Patel Engineering
- Max Infra (I) Ltd.
- Afcons Infrastructure Ltd.
