Ontario Amateur Sports Assoc. http://www.oasa.ca
Ontario Rural Softball Association http://www.ontarioruralsoftballassociation.ca
Provincial Women’s Softball Association http://www.pwsaontario.com
Slo-Pitch Ontario https://slopitch.org
Softball Ontario http://www.softballontario.ca
Softball Canada http://www.softball.ca
World Baseball Softball Confederation https://www.wbsc.org/en
USA Softball (formerly Amateur Softball Association of America) http://www.softball.org