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The result of the 2007 merger of three of the area's leading soccer clubs (St. Louis/Busch Soccer Club, Scott Gallagher Soccer Club, and Metro United Soccer Club), SLSG sponsors 275 teams for boys and girls in age groups from under-6 through under-20, including U.S. Soccer Development Academy programs.
In addition to teams and leagues, the organization sponsors such activities as training camps, specialized physical training, manager/coach training, and nine seasonal tournaments for boys and girls age group teams from throughout the U.S. and Canada.
A unit of the organization, SLSG Pro LLC, owned and operated Saint Louis FC, a team in the USL Championship that played home matches in the 5,500 seat Toyota Stadium at World Wide Technology Soccer Park. After six seasons (2015-2020), Saint Louis FC disbanded after the 2020 season because of COVID-19 concerns and to make way for Saint Louis City SC of Major League Soccer.
Starting in 2021 the club fielded a team in USL League Two which finished 3rd in the Heartland division with a 6-4-2 record and did not qualify for the playoffs.