| Abbreviation | Definition |
|---|---|
| TR | Transaction Rate |
| TRAC | Track Data Corporation |
| TRAH | Transact International, Inc. |
| TRAK | Canterbury Park Holding Company |
| TRBD | Turbodyne Technologies, Inc. |
| TRBO | Turbochef, Inc. |
| TRBR | Trailer Bridge, Inc. |
| TRBS | Texas Regional Bankshares |
| TRBX | RB Systems International |
| TRBX | TRB Systems International |
| TRCD | Tricord Systems, Inc. |
| TRCD | Tricord Systems, Incorporated (de-listed) |
| TRCD | Tricord Systems, Incorporated (de-listed) |
| TRCI | Technology Research Corporation |
| TRCP | Tropic Communicators |
| TRCP | Tropic Communicators (de-listed) |
| TRCP | Tropic Communicators (de-listed) |
| TRDM | Trend Mining Company |
| TRDX | Tridex Corporation |
| TRDY | Trudy Corporation |