| Abbreviation | Definition |
|---|---|
| RWC | Rubadue Wire Company |
| RWC | Russian Weapon Company |
| RWC | Russian Weapons Company |
| RWD | Radiowebdesign.com |
| RWD | Rogalski, Wigura, and Drzewiecki |
| RWD | Stanislaw Rogalski, Stanislaw Wigura, and Jerzy Drzewiecki, aircraft manufacturer |
| RWE | Real World Engineering |
| RWE | RoseWater Engineering |
| RWE | Royal Wholesale Electric |
| RWF | Rail Wheel Factory, India |
| RWG | Risk Waters Group |
| RWH | R. W. Harris Engineering Company |
| RWH | R. W. Hertel & Sons |
| RWH | Real Web Host |
| RWH | Richard W. Hughes publishing |
| RWI | Radio Waves, Inc. |
| RWI | Radio Waves, Incorporated |
| RWI | Read Write Inc |
| RWI | Resellers Web Interface |
| RWI | Riley Whittle Incorporated |