| Abbreviation | Definition |
|---|---|
| TWMC | Teco Westinghouse Motor Company |
| TWN | Travel. World. Net |
| TWN | Triumph Werks Nurnberg |
| TWO | Total Wonder Organization |
| TWOC | Time Warner Order Center |
| TWQ | Thüringer WaldQuell, GmbH |
| TWR | Technikon WitwatersRand |
| TWR | Torto Wheaton Research |
| TWRI | Tyne and Wear Research and Information |
| TWS | The Write Stuff |
| TWS | Top Worst Suppliers |
| TWS | Trans- World Skateboarding |
| TWSC | Taiwan Water Supply Corporation |
| TWT | Third Wave Technologies, Inc. |
| TWT | Tiger Wheel & Tyre |
| TWT | Trucking With Tim |
| TWTC | Tennessee Williams Theatre Company |
| TWTC | Tidewater Wireless Telegraph Company |
| TWU | The Web Union |
| TWW | The Wizard World.Com |