| Abbreviation | Definition |
|---|---|
| TBE | Twin Butte Energy Ltd. |
| TBE | Twin Butte Energy, LTD. |
| TBL | Taiga Building Products Ltd. |
| TBP | T. Boone Pickens Energy Fund |
| TC | Tucows Inc. |
| TC | Tucows Incorporated |
| TCA | TransCanada PipeLines Limited |
| TCK | Teck Resources Limited |
| TCL | Transcontinental Inc. |
| TCL | Transcontinental Incorporated |
| TCM | Thompson Creek Metals Company Inc. |
| TCM | Thompson Creek Metals Company Incorporated |
| TCN | Tricon Capital Group Inc. |
| TCN | Tricon Capital Group Incorporated |
| TCP | Trident Performance Corp. |
| TCP | Trident Performance Corporation |
| TCS | TECSYS Inc. |
| TCS | TECSYS Incorporated |
| TCT | Top 10 Canadian Financial Trust |
| TCW | Trican Well Service Ltd. |