| Abbreviation | Definition |
|---|---|
| HWC | Hancock Whitney Corporation |
| HWC | Hispanic Womens Corporation |
| HWC | Home Works Corporation |
| HWCC | Houston Wire Cable Company |
| HWI | Halleck Willard Inc |
| HWIC | HollyWood In Cleveland |
| HWL | Highway Wholesalers Ltd |
| HWM | Hersham and Walton Motors |
| HWP | His Word Publications |
| HWPI | Heartland Wood Product Inc |
| HWPL | Horizon Webinfo Pvt Ltd |
| HWRC | Howitt- Wood Radio Company, Inc. |
| HWS | Hogsmeade Web Shoppe |
| HWS | Human Work Shop |
| HWSC | Hawaii Water Service Company |
| HWTC | Health and Wellness Theatre Company |
| HWW | Hallett Whipple Weyrens |
| HWW | Hermann Wienberg Wilhelm |
| HXOH | Hexion Holdings Corporation Class B |
| HYC | Hong Yang Corporation |