Indian Institute of Science (IIS)
Indian Institute of Technology (IIT)
Indian Space Research Organization (ISRO)
Indian Telephone Industries Ltd (ITI)
INSAT Master Control Facility
Instrumentation Ltd
Instruments Research & Development Estt. (IRDE) - Dehra Dun
Interim Test Range (ITR) - Chandipur
ISRO Telemetry Tracking & Command Network

Kalinga Studios - Cuttack
KELTRON
Kerala State Film Development Corpn (KSFDC) - Trivandrum
Kolhapur Chitra Nagari - Kolhapur

Liquid Propulsion Systems Centre (LPSC) - Mahendragiri