Organizers
- Chandler Hill Challenge
- Chandler National Little League
- Chandler preparatory Academy
- Chandler YMCA
- Chandler Youth Football Pop Warner
- Channel Islands YMCA
- Chapel Grove Baptist Church
- Chapel Hill Christian School
- Chapel Hill Quest Martial Arts LLC
- Chapel Lane Presbyterian Church
- Chapel To Church Half Marathon
- Character Counts Kent County
- Character Counts Mid Shore, Inc
- Characters for a Cause
- Chardonnay Golf Club
- Char-Em ISD
- Chariot Run Golf Club
- Charis Camp & Conference Centre
- Charis Life Fellowship
- Charisma Runners
- CharitiesChallenge
- Charity Benevolent Fund
- Charity Challenge
- Charity Day 5K
- Charles City Kiwanis
- Charles City Youth Baseball League
- Charles County Tennis Patrons
- Charles E. Estes Golf Instruction
- Charles Page High School Senior Celebration
- Charles River Aquatics
- Charles T Myers Golf Course
- Charles Town Parks and Rec
- Charleston Area Chamber of Commerce
- Charleston Battery
- Charleston Central Little League
- Charleston County Park and Recreation Commission
- Charleston Jewish Community Center
- Charleston Juniors Volleyball
- Charleston National Golf Club
- Charleston Parks & Recreation
- Charleston Parks & Recreation Department
- Charleston Parks and Recreation
- Charleston RiverDogs
- Charleston Salmon Run
- Charleston Tennis Center
- Charleston Tennis Club
- Charlevoix Area Community Pool
- Charlevoix Kiwanis Youth Foundation
- Charlie Alewine
- Charlie Lake Kidz Sports
