Chemtrols Industries LTD 
Honeywell Automation India LTD
Honeywell Automation India LTD
L & T Electrical & Automation
HPCL Salawas
IOCL Chittoor
IOCL Haldia
IOCL Jaipur
MSO Akola
MSO Ahemadnagar
MSO IOCL chandrapur
Emerson Automation Solutions
Endress + Hauser
Endress + Hauser (India) Pvt. Limited.
GE Oil & Gas Measurement & Control - I
GE Oil & Gas Measurement & Control - II
Baker Hughes A GE Company
Hindustan Petroleum Corporation Limited
Endress + Hauser
