| TJ | Tad Mineral Exploration Inc | TSX Venture | Active |
| TLG | Tagish Lake Gold Corp. | TSX Venture | Active |
| TAO | Tag Oil Ltd | TSX Venture | Active |
| TAO.WT | Tag Oil Ltd wt ex 5nov2010 | TSX Venture | Active |
| THO | Tahoe Resources J | TSX | Active |
| TBL.NT | Taiga Building Nt | TSX | Active |
| TBL | Taiga Building Prod | TSX | Active |
| TPN | Taipan Resources Inc | TSX Venture | Active |
| TAJ.P | Tajiri Ventures Corp | TSX Venture | Active |
| TJZ.H | Tajzha Ventures Ltd. | TSX Venture | Suspended |
| TKK | Takara Resources Inc | TSX Venture | Active |
| TAK | Taku Gold Corp | TSX Venture | Active |
| TLM | Talisman Energy Inc. | TSX | Active |
| TLO | Talon Metals Corp. J | TSX | Active |
| TVE | Tamarack Valley Energy Ltd. | TSX Venture | Active |
| TAM | Tamerlane Ventures Inc. | TSX Venture | Active |
| TEI | Tango Energy Inc | TSX Venture | Delisted |
| TQY | Tanqueray Resources Ltd | TSX Venture | Active |
| TZM | Tanzania Minerals Corp | TSX Venture | Active |
| TNX | Tanzanian Royalty J | TSX | Active |
| TPA.H | Tapango Resources Ltd. | TSX Venture | Active |
| TPR.H | Tapestry Resource Corp. | TSX Venture | Delisted |
| TRO | Taranis Resources Inc. | TSX Venture | Active |
| TCI | Target Capital Inc | TSX Venture | Active |
| TCC | Tarsis Resources Ltd | TSX Venture | Active |
| TKO | Taseko Mines Ltd. | TSX | Active |
| TSM | Tasman Metals Ltd | TSX Venture | Active |
| TAT | Tatmar Ventures Inc. | TSX Venture | Active |
| TAW | Tawsho Mining Inc | TSX Venture | Active |
| TO.A | Tax Optimized Incm | TSX | Active |
| TO.UN | Tax Optimized ROC Tr | TSX | Active |
| TBP.UN | T.Boone Pickens A Un | TSX | Active |
| TBP.WT | T.Boone Pickens A Wt | TSX | Active |
| TD | T.D. Bank | TSX | Active |
| TD.PR.A | T.D. Bank Ser AA Pr | TSX | Active |
| TD.PR.C | T.D. Bank Ser AC Pr | TSX | Active |
| TD.PR.E | T.D. Bank Ser AE Pr | TSX | Active |
| TD.PR.G | T.D. Bank Ser AG Pr | TSX | Active |
| TD.PR.I | T.D. Bank Ser AI Pr | TSX | Active |
| TD.PR.K | T.D. Bank Ser AK Pr | TSX | Active |
| TD.PR.M | T.D. Bank Ser M Pr | TSX | Active |
| TD.PR.N | T.D. Bank Ser N Pr | TSX | Active |
| TD.PR.O | T.D. Bank Ser O Pr | TSX | Active |
| TD.PR.P | T.D. Bank Ser P Pr | TSX | Active |
| TD.PR.Q | T.D. Bank Ser Q Pr | TSX | Active |