Takehiko Kawamoto

Saisan Co., Ltd. engages in the supply and sale of gases for residential, medical and industrial uses. It also provides the energy saving business; sale, design and installation work of equipment relating general high-pressure gas; design and installation work of mass supplying facilities of LPG and community gas supply system; sale of petroleum products; electricity business; home delivery service of spring water; sale, design and renovation work of the housing; and others. The company was founded by Jiro Kawamoto on October 21, 1945 and is headquartered in Saitama, Japan.

Paygo Energy, Inc. develops metering systems that enable customers to pre-pay for cooking gas. Its system monitors customer gas consumption and predicts when gas is going to run out. The company was founded by Nick Quintong, Fausto Marcigot, Mark Okeefe, Mike Hahn and Laura Talsma in 2014 and is headquartered in Seattle, WA.