United Soccer Association was created in 1967.
Women's United Soccer Association was created in 2000.
United States Adult Soccer Association was created in 1995.
Women's United Soccer Association ended in 2003.
Ontario Soccer Association was created in 1901.
Alberta Soccer Association was created in 1911.
Gordon Head Soccer Association was created in 1956.
North Texas Premier Soccer Association was created in 1974.
Federation of International Robot-soccer Association was created in 1997.
National Soccer Coaches Association of America was created in 1941.
United Association was created in 1889.
US National Soccer Team Players Association was created in 1996.
Soccer United Marketing was created in 2002.