| CPTC | California Private Transportation Company 
| Others |
| CPTC | Canadian Plastics Training Centre
| Others |
| CPTC | Canadian Power Toboggan Championships
| Others |
| CPTC | Canty Parent Teacher Club
| Others |
| CPTC | Cedar Park Track Club
| Others |
| CPTC | Center for Plasma Theory and Computation
| Others |
| CPTC | Central Park Track Club
| Others |
| CPTC | Central Park Triathlon Club
| Others |
| CPTC | Central Passenger Terminal Complex
| Others |
| CPTC | Central Pennsylvania Triumph Club
| Others |
| CPTC | Certified Penetration Testing Consultant
| Others |
| CPTC | Certified Professional Technical Communicator
| Others |
| CPTC | Citizen Planner Training Collaborative
| Others |
| CPTC | Clinical Proteomic Technologies for Cancer
| Others |
| CPTC | Clover Park Technical College
| Others |
| CPTC | College Park Tennis Club
| Others |
| CPTC | Comprehensive Physical Therapy Center
| Others |
| CPTC | Congressional Payments Technology Caucus
| Others |
| CPTC | Constructioncentral Passenger Terminal Complex
| Others |
| CPTC | Consumer Product Testing Company
| Others |
| CPTC | Counseling Psychology Training Clinic
| Others |