| Abbreviation | Definition |
|---|---|
| TUHUP | Texas Utilities Electric Company US Holdings Company |
| TUHUT | Texas Utilities Electric Company US Holdings Company |
| TUMA | Tuma Corporation of Nevada |
| TURF | iTurf, Inc. |
| TURN | Turn Technologies, Inc. |
| TUSC | Tuscarora, Inc. |
| TUSH | R M E D International, Inc. |
| TUTR | T R O Learning, Inc. |
| TUTS | Tut Systems, Inc. |
| TVBCY | Television Broadcasts, LTD. |
| TVCN | T V Communications Network |
| TVCP | Talk Visual Corporation |
| TVER | Terrace Ventures, Inc. |
| TVFL | TV Filme, Incorporated (de-listed) |
| TVGIA | T V Guide, Inc. |
| TVGTF | T.V.G. Technologies, LTD. |
| TVGUF | TVG Technologies, LTD., Units of 12/31/2001 (de-listed) |
| TVGWF | T V G Technologies, Ltd. Warrants |
| TVGWF | TVG Technologies, LTD. Warrants (de-listed) |
| TVGWF | TVG Technologies, LTD. Warrants (de-listed) |