| Abbreviation | Definition |
|---|---|
| TDC | Technical Dive Center, Pattaya, Thailand |
| TDC | Tele Danmark Communications |
| TDC | Temecula Dance Company |
| TDC | Tenants Development Corporation |
| TDC | Texaco Development Corporation |
| TDC | The Development Corporation |
| TDC | Three Dimension Company |
| TDC | Three Dimensional Company |
| TDC | Three Dimesion Company |
| TDC | Totality Design Concepts |
| TDC | Tourist Development Corporation |
| TDCC | Taiwan Depository Clearing Corporation |
| TDE | Team Delta Robots |
| TDE | Technology Data Exchange |
| TDE | The Denver Exchange |
| TDE | The Digital Edge |
| TDE | Tractebel Development Engineering |
| TDG | Tantra's Design Group |
| TDG | The Daedalus Group |
| TDG | The Destination Group |