Please Note, this list is not a complete one. If you know of any schools that are missing, or have any website addresses that I have missed, please let me know so that I can update the list. Thank you.

Ohio
Daiun-Ji Great Cloud Temple
460 Fleming Rd
Cincinnati, OH 45231
(513) 238-4639

Dokuji Shinden Bujinkan Dojo
522 Arlington Blvd
Newton Falls, OH 44444
(330) 812-4485

Columbus Ninjutsu Club
888 E. Dublin-Granville Rd
Columbus, OH 43229

Ichi Nen Dojo
11303 Pearl Rd
Strongsville, OH
(330) 321-1845

Cleveland Bujinkan
3965 Mayfield Rd
Cleveland Heights, OH 44121
(440) 585-1749