Companies

Menko manufacturing companies are probably the least known feature about sumo menko.  However, many companies also produced baseball menko and so many company marks have been established by the Japanese Baseball Card industry with a few exceptions.  More to follow on this topic as I do a little more investigational work.

	Asahi Gangu
	Doyusha Gangu
	Kagome Gangu
	Marukami Gangu
	Maruo Gangu
	Marusan Gangu
	Marushyou Gangu
	Maruta Gangu
	Mitsuwa Gangu
	Nagoya Gangu
	Nishin Company
	Sumo Kyokai(Yamakatsu Gangu)
	Yamakatsu Gangu Company