Organizers
- Rainbow House Children's Resource Center
- Rainbow Pediatric, Adult & Senior Yoga
- Rainbow Riders Childcare Center PTA
- Rainbow Therapeutic Riding Center
- RaineRaces
- Rainey Institute
- Raining Colors 5K
- Raintree Swim and Racquet Club
- Raise the Bar Events
- Raising Funds for the National Coalition Against Domestic Violence
- Raising Money for Good Causes 1
- Raising The House
- Raleigh Parks, Recreation and Cultural Resources
- Rally Baseball
- Rally for Ron
- Rally Point River Ride
- Ralph Durbin Rogues Hollow 5K
- Ralph Wulz Riverside Tennis Center
- Ramblewood Tennis &Health Club
- Ramblin' Rose Events
- Ramjet Events LLC
- Rampart Rager Gravel Fondo
- Rams Lacrosse Club
- Ramsey Golf & Country Club
- Ramsey Jr. High
- Ranch Hope Inc. / Camp Edge
- Rancho Alamitos High School Track Boosters
- Rancho Bernardo High School Friends of the Library (RBHS FOL)
- Rancho Bernardo Little League
- Rancho Bernardo Pop Warner
- Rancho Bernardo Recreational Soccer
- Rancho Canada
- Rancho Penasquitos Little League
- Rancho Penasquitos PW, Inc.
- Rancho Penasquitos Youth Soccer Association
- Rancho Sahuarita
- Rancho Sahuarita Village Programs Association
- Rancho San Joaquin GLC
- Rancho Santa Margarita Landscape and Recreation Corporation
- Rancho Solano Summer Camps
- Rancho Tsunami Water Polo Club
- Randall's Island Park Alliance
- Randall's Island Sports Foundation
- Randolph County
- Randolph County YMCA, Inc.
- Randolph Golf Course
- Randolph Hospital
- Randolph PWA
- Random Farms Kids' Theater
- Randy Hock Tennis
