Organizers
- Renegade Racing
- Renew Missouri
- Reno Pop Warner
- Rensselaer Polytechnic Institute - Outreach Programs
- Renton School District #403
- RESCUE
- Rescue An Orphan Run
- Rescue Her
- Rescue Outreach Mission Of Central Florida
- Rescue Ranch
- Rescue the Animals
- RescueMe Foundation, Inc.
- Research Down Syndrome
- Reservoir Boosters
- Reservoir High School Boosters
- Reservoir High School Boosters Camps
- Resolute Lacrosse
- Resolution 5K Run/Walk
- Resolution Run to Kick Cancer
- ResolutionRun
- Resonate Kids Inc.
- Resource Spectrum, LLC
- Respect Through Sports
- Reston Association
- Reston National
- Reston Runners
- Reston Youth Club
- RETREAT & REFRESH STROKE CAMP
- Retreat Tennis Center
- Retro Baseball
- Return of the Robin
- Reunion Country Club
- REV3Adventure
- Rev3Endurance
- Revelstoke Aquaducks
- Revere Golf Club
- Revert Coalition
- Revival Productions
- Revive 5K LLC
- Revive Downtown Richlands
- Revive Fitness
- REVIVE Nutrition & Fitness
- Revolution Aquatics
- Revolution Dance
- Revolution Field Hockey
- Revolution Field Hockey Camps
- Revolution Global Soccer
- Revolution Running
- Revolution Soccer Camps
- Revolution Softball Camps
