| Abbreviation | Definition |
|---|---|
| TMK | Torchmark Corp |
| TMKS | Oao Tmk (Regs) |
| TMMG | Mission Mktg. |
| TMPL | Temple Bar |
| TMT | Tmt Investments |
| TMW | Timeweave |
| TMZ | Toumaz |
| TNCI | Tinci Hldgs |
| TNCS | Tinci Hldg Regs |
| TND | Tandem Group |
| TNG | Tangent |
| TNI | Trinity Mirror |
| TNO | Rsm Tenon |
| TNZ | Tanzanite |
| TOL | Toluna |
| TON | Titon Holdings, PLC. |
| TOPC | Top Creation |
| TOS | Toshiba Corporation |
| TOT | Total Produce |
| TOU | Touch Group |