| Teachers College Career Services | Academic & Science |
| Tufts Computing and Communications Services | Academic & Science |
| The Claremont Colleges Services | Academic & Science |
| Track Computer Center Services | Business |
| The Call Center School | Business |
| Terra Ceia Christian School | Community |
| Teaneck Community Charter School | Community |
| Traverse City Christian School | Community |
| Theater Command and Control System | Community |
| Tampa Christian Community School | Community |
| Trenton Community Charter School | Community |
| Transnational Cultural and Community Studies | Community |
| Tri City Christian School | Community |
| Tri Central Community Schools | Community |
| Tidioute Community Charter School | Community |
| Texas Consortium for Computational Seismology | Computing |
| Transparent Common Channel Signaling | Computing |
| Tal Concealed Carry System | General |
| Torque Converter Clutch Solenoid | General |
| Texaco Controlled Combustion System | General |
| Tiburon Classic Car Show | General |
| Toyota Celica Club Saliblick | General |
| Toyota Celica Club Schweiz | General |
| Trauma Collaborative Care Study | General |
| Tactical Casualty Care Simulator | General |
| Transport Canberra and City Services | General |
| Toyota Computer Controlled System | Governmental |
| Trace Contaminant Control System | Governmental |
| Transcranial Color Coded Sonography | Medical |
