World Dang Soo Do Union
Kwan Jang Nim Song Ki Kim: www.wdsdu.com
Pyong Hwa Kunin Tang Soo Do
Kwan Jang Nim Steve Voelker: www.middlesextangsoodo.com
Mike Bogdanski's Martial Arts System
Kwan Jang Nim Mike Bogdanski: www.martialart-skills.com
Tang Soo Do Masters Alliance
Sa Bom Nim Garth Charland: www.tsdmastersalliance.com