Organizers
- Southgate Recreation and Park District
- Southwest Louisiana CCW, LLC
- Spartan Aquatics
- Spectrum Autism Support
- Spectrum Autism Support Group
- Spectrum Sports Management
- Spencerville Adventist Academy
- Sponge
- Spooky Nook Sports
- Spooky Nook Sports Ohio
- Sport and Health Academy
- Sporting S7v7ns
- Sports Centre - Town of Fort Frances
- Sports Xtra - Basingstoke
- Sports Xtra - South Wales
- Sporty Scholars
- Spring Grove Swim Club
- Springboard Danse
- Springfield-Greene County Park Board
- Sprouting Sports
- St Joseph's Academy
- St Phillip Neri
- St. David's School
- St. Edward High School
- St. Frances de Chantal CYO
- St. Ignatius Hickory Parish
- St. John's Community Child Development Center
- St. John's Lutheran Church
- St. Johns Sea Lions
- St. Joseph's New York Athletic and Recreation Community Programs
- St. Joseph's University, New York
- St. Lawrence Parish
- St. Louis University High School (Upward Bound Academy)
- St. Luke the Evangelist
- St. Luke's Episcopal School
- St. Luke's Episcopal School - San Antonio
- St. Mary's Parish
- St. Michael's Episcopal School
- St. Patrick's Bedford CYO
- St. Paul's Episcopal School
- St. Petersburg Parks and Recreation
- St. Teresa's Academy
- St. Thomas Episcopal Church
- St. Vincent de Paul School
- Stadium Stomp
- Stage Door Theatre Academy
- Stage Kids
- Stage West Theatre
- Star City Academy for the Performing Arts
- Star Through Hoops
