This is a list of Japanese natural gas companies.
Major suppliers: Tokyo Gas () Osaka Gas () Toho Gas () Saibu Gas ()
Semi-major suppliers: Shizuoka Gas () Hokkaido Gas () Hiroshima Gas () Hokuriku Gas () Keiyo Gas () Chubu Gas () Otaki Gas Shin-nihon Gas () Higashi-nihon Gas ()
See also List of public utilities