| CCSO | California Correctional Supervisors Organization 
| Others |
| CCSO | Calvary Chapel South Orlando
| Others |
| CCSO | Cape Cod Symphony Orchestra
| Others |
| CCSO | Cass County Sheriff's Office
| Others |
| CCSO | Central Customer Service Officer
| Others |
| CCSO | Certified Chief Security Officer
| Others |
| CCSO | Certified Cloud Security Officer
| Others |
| CCSO | Chaffee County Sheriff Office
| Others |
| CCSO | Charles County Sheriff's Office
| Others |
| CCSO | Charlotte County Sheriff's Office
| Others |
| CCSO | Chief Child Support Officer
| Others |
| CCSO | Chief Constables' Staff Officer
| Others |
| CCSO | Chief Customer Service Officer
| Others |
| CCSO | Clackamas County Sheriff's Office
| Others |
| CCSO | Clay County Sheriff Office
| Others |
| CCSO | Cleveland County Sheriff's Office
| Others |
| CCSO | Cleveland County Sheriffs Office
| Others |
| CCSO | Collier County Sheriff's Office
| Others |
| CCSO | Command Control Systems Office
| Others |
| CCSO | Competitive Cyber Security Organization
| Others |
| CCSO | Computing and Communications Service Office
| Others |
| CCSO | Corpus Christi Symphony Orchestra
| Others |
| CCSO | Critical Care Services Ontario
| Others |