Sumiyoshi-kai

Sumiyoshi-kai
The daimon of the Sumiyoshi-kai
Founded1958 (1958)
FounderJusaku Abe
Founding locationTokyo, Japan
TerritoryTokyo
Membership2,100 members 1,100 quasi-members
Leader(s)Shūji Ogawa

The Sumiyoshi-kai (住吉会), sometimes referred to as the Sumiyoshi-rengo (住吉連合, Sumiyoshi-rengō; "Sumiyoshi Union"), is the second-largest yakuza group in Japan with an estimated 2,100 members.