Organizers
- Southern Illinois University
- southern indiana baseball
- Southern Indiana Classic
- Southern Indiana Spikes and Team Central Sports
- Southern Indiana Wolfpack
- Southern Lakes Parks & Recreation
- Southern Little League
- Southern Maryland Community Network
- Southern Maryland Electric Cooperative
- Southern Maryland Youth Flag Football League
- Southern Meadows Golf Club
- Southern Michigan Aquatic Club
- Southern Nevada Writing Project
- Southern New England Soccer
- Southern Ohio Sting Baseball and Softball Club
- Southern Oregon Challenger Little League
- Southern Pines Golf Club
- Southern Pines Recreation & Parks Department
- Southern Race Timing
- Southern Racing
- Southern Sailing Academy
- Southern Scholarship Foundation
- Southern Softball
- Southern Sports Promotions, LLC
- Southern Sports Promotions, LLC (Steve Cooley)
- Southern Stafff/Volunteer local CTA
- Southern Technical Institute
- Southern Ulster Racing
- Southern Union State Community College
- Southern University Band
- Southern Utah Swim
- Southern VA CAC
- Southern Wisconsin Fastpitch
- SOUTHERN WISCONSIN FASTPITCH
- Southgate Junior Hockey
- Southgate Recreation and Park District
- Southington-Cheshire Community YMCAs
- Southlake Tennis Center
- Southlands Farm
- Southlands Heritage Farm
- Southmoore Golf Club
- Southpointe Academy
- Southridge Little League
- Southridge Raider Bands
- Southshore Lacrosse
- SouthSide Cycling Club
- Southside Thunder Soccer
- Southside Youth Soccer League
- Southwark Cyclists
- Southwest Area Girls Softball
