| TTSC | Technology and Telecommunications Steering Committee
| Others |
| TTSC | Teen Theater Summer Camp
| Others |
| TTSC | Tenure Track Supper Club
| Others |
| TTSC | Test Technology Standards Committee
| Others |
| TTSC | Texas Trailer Service Company
| Others |
| TTSC | Thai Thai Sansar Che
| Others |
| TTSC | The Trademark Search Company
| Others |
| TTSC | Thoroughbred Trainers Service Centre
| Others |
| TTSC | Tigard Tualatin Swim Club
| Others |
| TTSC | Tigers That Speak Chinese
| Others |
| TTSC | Topconf Tallinn Software conference
| Others |
| TTSC | Travel Trade Sports Club
| Others |
| TTSC | Tri Town Soccer Club
| Others |
| TTSC | True Triaxial Stress Cell
| Others |
| TTSC | Tuscaloosa Tourism and Sports Commission
| Others |