Organizers
- Center for Barefoot Massage, LLC.
- Center for Black Music Research
- Center for Child and Adolescent Development
- Center for Fitness and Health
- Center for Gifted Education and Talent Development
- Center For Humane Living
- Center for Lifelong Learning YMCA
- Center For New Beginnings
- Center For The Creative Arts
- Center Grove
- Center Harbor Yacht Club
- Center Lake Bible Camp
- Center Line Homeschool Partnership
- Center Line Partnership
- Center of the Golden One Community
- Centercourt Athletic Club
- Centerfield Sports Tournaments
- Centerfield Storm Tournaments
- Centerpoint Fellowship
- Centerpoint Fellowship Church
- CenterStage Theater Company
- CenterStage Theatre Company
- Centerville 4th
- Centerville Youth League
- Centerville-Washington Park District
- Central Alabama Firearms Training LLC
- Central All Star Promotions, LLC
- Central Arizona Honor Guard
- Central Baptist Church
- Central Bergen Lacrosse
- Central Bucks Bicycle Club
- Central Cascade Pop Warner
- Central Coast Tennis
- Central Connecticut Arms, LLC
- Central Dauphin Area Basketball Association
- Central Falls Parks & Recreation
- Central Florida Lacrosse Academy
- Central Florida Soccer Camp
- Central Georgia Arts & Athletics
- Central Hardin Bruin Baseball Grade School Basketball Tourna
- Central Illinois Running Camp
- Central Illinois Tennis Association
- Central Iowa Art Association
- Central Iowa Coed Soccer League
- Central Jersey Bicycle Club
- Central Kansas Conservancy
- Central Kentucky Athletics
- Central Kentucky Strikers
- Central Kentucky Wheelmen
- Central Kentucky Youth Orchestras