| CTASC | Ceramic Tile and Stone Consultants 
| Others |
| CTASC | Chautauqua Tobacco Asset Securitization Corporation
| Others |
| CTASC | Chemung Tobacco Asset Securitization Corporation
| Others |
| CTASC | Chinese Taipei APEC Study Center
| Others |
| CTASC | Clara Thomas Archives and Special Collections
| Others |
| CTASC | Corps Theater ADP Service Center
| Others |
| CTASC | Corps/Theater ADP Support Center
| Others |
| CTASC | Counter Terrorism and Security Council
| Others |