Bharat Earth Movers Limited (BEML)

Indian Railways

General Electricals (GE)

Bhutan Engineering Company

Ispat Damodar Pvt. Ltd.

Reliance Power (Sasan Power Limited)

Kiswok Industries

West Bengal Police and Kolkata Police

Rashmi Mettaliks

Alom Extrusions (Alom Group)

Electricity Supply Corporation (CESC)

Larsen & Toubro

West Bengal Police, Kolkata Police

Border Security Forces

Sammelan Tea and Beverages Pvt.Ltd.

McNally Sayaji Engineering Limited

Sonic Thermal Pvt.Ltd

National Power Engineering Company NPEC

State Trading Corporation of Bhutan (STCB)


PNP Flexipack Ranchi

Defence Research and Development Organization (DRDO)

Bata India

South Bengal State Transport Corporation (SBSTC)

Toyota Bhutan

State Trading Corporation of Bhutan Limited (STCBL)

BRG Iron & Steel Company Pvt. Ltd.

S Dhole & Company (Salical)

Navbharat Cylinders

Bhuvee Stenovate

IMS Medisolutions

DR Steel Industries

Heavy Vehicles Factory Chennai

Central Armed Police Forces

Indian Navy

Bhakra Beas Management Board Merico Ago Industries Pvt. Ltd

Strescon Industries Ltd

Rail Track Concrete Products Pvt. Ltd

Rainbow Infrastructure

Calcutta Electricity Supply Corporation (CESC)

BMN Alloys

Hazaribag Dental College

Marco Blowers, West Bengal

Benson Engineering, Rourkela (Orrisa)

PNP Flexipack, Ranchi

SA Traffic Safety, Kolkata

Ruby Hospital Kolkata

AKM Agro Processing Pvt. Ltd.

Laser Power and Infra Pvt. Ltd.

Shree Lakshmi Iron Steel Works Pvt. Ltd.

Shiva Steel Industries

Department of Defence

Department of Military Affairs

Steel Authority of India Limited SAIL

Hindustan Petroleum Corporation Limited HPCL

Vikas Hitech Castings

Benson Engineering Rourkela

Shri Lakshmi Iron Steel Works

Bharat Earth Movers Limited (BEML)

Marco Blowers WB

Indian Chain Pvt.Ltd.