CCAC
- California College of Arts and Crafts
- Canadian Council on Animal Care
- Chicagoland Collegiate Athletic Conference
- Citizens Coinage Advisory Committee
- Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants
- Commission Against Corruption (Macau)
- Community Circus Arts Corporation
- Community College of Allegheny County
- Community care access centres
- National Association of Intercollegiate Athletics