GIL is an ISO-9001:2008 certified company and its R & D Center is recognized by the Department of Scientific and Industrial Research, Govt. of India.
GIL is the largest manufacturer and suppliers of Composite Insulators in India.
GIL is a public listed company. GIL is currently traded on the Bombay Stock Exchange (BSE), the National Stock Exchange (NSE.
GIL, is market leader through creative technologies, and commitment to excellence. Composite Insulators are well used across the globe as a significant technology breakthrough.
The Composite Insulators manufactured are of the rating 800 KV HVDC, 765 KV, 400 KV, 220 KV, 133 KV, 66 KV, 33 KV & 11 KV. We have also developed and tested 1200 KV insulators for PGCIL