Chambal Fertilisers & Chemicals Ltd

Gujarat Narmada Valley Fertilizers & Chemicals Ltd

Gujarat State Fertilizers & Chemicals Ltd

IFFCO

Coromandel International Ltd

KRIBHCO

Fertilisers and Chemicals Travancore Ltd

Rashtriya Chemicals and Fertilizers Ltd

National Fertilizers Ltd

Engineers India Ltd

Uhde India Ltd

Mecon

Technip India Ltd

Toyo Engineering India Ltd

Bechtel

Projects and Development India Limited

Kvaerner Power & Gas Ltd

Tata Consulting Engineers

ABB

Honeywell

L&T

Daelim

Siemens

Advanced Systek Pvt Ltd

Hyundai Heavy Industries Ltd

Yokogawa India Ltd

Emerson

Linde Engineering

Bridge & Roof Co.

Jasubhai Engineering

GAIL Ltd

Haldia Petrochemicals Ltd

Assam Petrochemicals Ltd

Asian Paints

The Kerela Minerals and Metals Ltd

Gujarat Alkalies and Chemicals Ltd

Hindustan Organic Chemicals Ltd

SRF Ltd

Gujarat Fluorochemicals Limited

Gujarat Electricity Board

Bharat Heavy Electricals Limited

National Thermal Power Corporation

Department of Atomic Energy

National Aluminium Company

Vishakhapatnam Steel Plant

Steel Authority of India Limited

Hindustan Zinc Ltd

Tata Steel Ltd

Jindal Steel Ltd

Dresser-Rand (I) Pvt. Ltd

Kirloskar Pneumatic Company Ltd

Safex Industries Ltd

Heat-Trace

Thermax

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