| Abbreviation | Definition |
|---|---|
| TCMS | TransCoastal Marine Services |
| TCNI | Technology International, LTD. |
| TCNJ | Trust Company of New Jersey |
| TCNO | Tecnomatix Technology, LTD. |
| TCPI | Technical Chemicals & Products |
| TCSI | T C S I Corporation |
| TCTY | Talk City, Inc. |
| TCTYL | Town & Country Trust |
| TCXXF | Tracer Petroleum Corporation |
| TDCM | Pre- Cell Solutions, Inc. |
| TDDD | 3D Labs, Inc., LTD. |
| TDFX | 3 D F X Interactive, Inc. |
| TDHC | Thermadyne Holdings Corporation |
| TDIT | 3 D Image Technologies |
| TDNM | Travel Dynamics, Inc. |
| TDRP | Teardrop Golf Company |
| TDSC | 3 D Systems Corporation |
| TDYN | Thermodynetics, Inc. |
| TEAM | National TechTeam, Inc. |
| TECD | Tech Data Corporation |