| Abbreviation | Definition |
|---|---|
| TWED | Tumbleweed, Inc. |
| TWFC | T & W Financial Corporation |
| TWHHW | TransWorld Healthcare, Inc. |
| TWIN | Twin City Bancorp, Inc. |
| TWIP | Twilight Productions, LTD. |
| TWLB | Twinlab Corporation |
| TWMC | Trans World Entertainment Corporation |
| TWNE | Towne Services, Inc. |
| TWNE | Towne Services, Incorporated (de-listed) |
| TWNE | Towne Services, Incorporated (de-listed) |
| TWOE | ITWOE.Com, Inc. |
| TWOE | ITWOE.Com, Incorporated (de-listed) |
| TWOE | ITWOE.Com, Incorporated (de-listed) |
| TWOS | Teledata World Services, Inc. |
| TWOS | Teledata World Services, Incorporated (de-listed) |
| TWOS | Teledata World Services, Incorporated (de-listed) |
| TWOU | 2 U Online.Com, Inc. |
| TWOU | 2U, Incorporated |
| TWOUE | 2 U Online.Com, Inc. |
| TWOUE | 2U, Incorporated (de-listed) |