IWKA Headquarters (Okinawa)
O'Sensei Kichiro Shimabuku
10th Dan Hanshi
2-1-13 Kinaka, Uruma City
Okinawa, Japan 904-2236
Facebook: https://www.facebook.com/groups/isshinryuWorldKarateAssn
Seishinkan West (Arizona)
Sensei Michael Calandra
10th Dan Hanshi
22033 West Gambit Trail
Wittmann, AZ 85361
(917) 667-0739
Seishinkan North Carolina (North Carolina)
Sensei Dean Mayo
8th Dan Kyoshi
701 North main Street
Wake Forest, NC
(919) 435-4311