| Abbreviation | Definition |
|---|---|
| TWRI | TrendWest Resorts, Inc. |
| TWRI | TrendWest Resorts, Incorporated (de-listed) |
| TWRI | TrendWest Resorts, Incorporated (de-listed) |
| TWRS | Crown Castle International |
| TWSTY | Telewest Communications, P. L. C. |
| TWTC | Time Warner Telecom, Inc. |
| TWTE | Twistee Treat Corporation |
| TWTE | wistee Treat Corporation |
| TWTI | Total World Telecom, Inc. |
| TWTR | Tweeter Home Entertainment Group |
| TXAG | Texas American Group, Inc. |
| TXCC | TranSwitch Corporation |
| TXCO | Exploration Company |
| TXCS | TotalAxcess.Com, Inc. |
| TXHCO | Texas Utilities Electric Company US Holdings Company |
| TXHHL | Texas Utilities Electric Company US Holdings Company |
| TXHHM | Texas Utilities Electric Company US Holdings Company |
| TXHHO | Texas Utilities Electric Company US Holdings Company |
| TXHHP | Texas Utilities Electric Company US Holdings Company |
| TXHOL | Texas Utilities Electric Company US Holdings Company |