This is a list of Japanese natural gas companies.

Major suppliers:

• Tokyo Gas (TYO: 9531)
• Osaka Gas (TYO: 9532)
• Toho Gas (TYO: 9533)
• Saibu Gas (TYO: 9536)

Semi-major suppliers:

• Shizuoka Gas (TYO: 9543)
• Hokkaido Gas (TYO: 9534)
• Hiroshima Gas (TYO: 9535)
• Hokuriku Gas (TYO: 9537)
• Keiyo Gas (TYO: 9539)
• Chubu Gas (NAG: 9540)
• Otaki Gas
• Shin-nihon Gas (TYO: 9542)
• Higashi-nihon Gas (TYO: 9544)