Organizers
- Calabasas P&R
- Caldwell Parks and Recreation
- Caleb's Cause
- Caledonian Concepts (Scotland) Ltd
- Calera Chamber of Commerce
- Calera Fire Rescue
- Calera High School PTO
- Calgary Aquabelles Artistic Swim Club
- Calgary Aquabelles Synchronized Swim Club
- Calgary Catholic School District
- Calgary Young People's Theatre
- Calhoun Community Education
- Calhoun County Chamber of Commerce
- Calhoun Cycling Club
- Calhoun Little League
- Calico Racing, LLC
- California Baptist University
- California Basketball Group – Garden Grove LLC
- California Basketball Group – Irvine LLC
- California Basketball Group - Lehi LLC
- California Basketball Group – Torrance LLC
- California Country Club
- California Field Hockey Camps and Clinics, LLC
- California Fire Mechanics Academy Inc.
- California Girl Series by Noble Pursuit, Inc.
- California Girls Soccer Camps
- California Junior Lifeguard Programs
- California Shooting Sports Association
- California Soccer Camps
- California State Parks - Huntington State Beach Junior LIfeguards
- California State Parks - Point Lobos Dive
- California State Parks - San Clemente State Junior Lifeguards
- California State Parks - Silver Strand State Beach Junior Lifeguards
- California State University, Bakersfield
- California Storm North
- California Tennis Association
- California University of PA
- California University of Pennsylvania - Baseball
- California University of Pennsylvania - Cross Country
- California University of Pennsylvania - Football
- California University of Pennsylvania - MBB
- California University of Pennsylvania - Men's Golf
- California University of Pennsylvania - Men's Soccer
- California University of Pennsylvania - Softball
- California University of Pennsylvania - Swimming
- California University of Pennsylvania - Track
- California University of Pennsylvania - Volleyball
- California University of Pennsylvania - Women's Basketball
- California University of Pennsylvania - Women's Soccer
- California USTSA
