| Abbreviation | Definition |
|---|---|
| TENS | Tensleep.Com, Incorporated (de-listed) |
| TENT | Total Entertainment Restaurant Corporation |
| TEPO | Technapower Industries |
| TEPO | Technapower Industries (de-listed) |
| TEPO | Technapower Industries (de-listed) |
| TEPUF | Trans Orient Petroleum, LTD. |
| TERA | Tera Computer Company |
| TERAW | era Computer Co |
| TERAW | Tera Computer Co |
| TERN | Terayon Communication Systems |
| TESI | Tangram Enterprise Solutions, Inc. |
| TESOF | Tesco Corporation |
| TESS | Tessco Technologies, Inc. |
| TEUR | Tele1 Europe Holding, A. B. |
| TEVA | Teva Pharmaceutical Industries, LTD. |
| TEVE | Telvue Corporation |
| TEVT | Technical Ventures, Inc. |
| TEXN | 21st Century Technologies, Inc. |
| TEXP | Titan Exploration, Inc. |
| TEXQ | Texas Equipment Corporation |