• Airports Authority of India – Kolkata & Chennai

• Kalindee-Rahee JV (KMRCL East West Metro Project )

• Siemens Ltd 

• Voltas Limited

• Sterling & Wilson Pvt Ltd

• T V Sundram Iyengar & Sons Private Limited

• Gemini Power Hydraulics Pvt Ltd

• Bank of Baroda, Eastern Zonal Office,

• ETA Engineering Pvt Ltd

• Linxon India Private Limited (ABB INDIA)