Organizers
- Swim Ocean City
- Swim Oxford Ltd
- Swim Oxford Open Ltd
- Swim Smart
- SwimAmerica
- SwimFast, LLC
- Swimming Pool - Town of Carberry/Municipality of North Cypress-Langford
- Swimprovement - A Total Immersion Company
- SwimRun Australia
- SwimTrek
- SwimVacation
- Swing the Club Golf Academy
- Swing Through 5k
- Swing to Finish
- Swinging for a Cure
- Swingline Sport
- Swiss Lake Marathon
- Switchback Events
- SwizzleSticks & Shellback Lacrosse
- SwizzleSticks Lacrosse
- Syble Hopp School Parent Organization
- Sycamore School
- SYCBA
- Sycuan Golf Resort
- Sydney International Regatta Centre
- Sykesville Main Street Association
- Sylvania Taekwon-do Foundation
- Sylvia Young Theatre School
- Symbol Of Alliance Limited
- Symbolic Art Center
- Symphony of Lights
- Synapse Sports
- Synchronized Golf Coaching
- Synergistic STEM Robotics
- Synergy Fitness
- Synergy Global Resources, LLC
- Synergy Volleyball Club
- Synergy World Outreach
- Syracuse Bicycle
- Syracuse City Schools Swimming and Diving
- Syracuse Softball
- Syracuse University Softball
- Syracuse Volleyball
- Syrosand Events Ltd
- SYSA
- SYSA
- SySTEMic Solutions
- Systems Unlimited, Inc.
- SYtri (Shrewsbury Triathlon)
- SYV People Helping People