sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Hospital on Call Coverage | ** |
| Highway Operations Control Centre | ** |
| Hawaii One Call Center | ** |
| Horizon Oil Consultant Corporation | * |
| Holy Orthodox Catholic Church | * |
| Hanohano Outrigger Canoe Club | * |
| Hellas Online Cine Club | * |
| Highway One Classic Classifieds | * |
| Hillard Orville Coal Company | * |