| Abbreviation | Definition |
|---|---|
| UCRY | Utah Central Railroad Company |
| UCSX | Union Camp Corporation |
| UECZ | Union Elevator Co. |
| UEEZ | Union Equity Elevator Co. |
| UEFZ | Union Equity |
| UELX | ADM Transportation Company |
| UELX | United Equipment Leasing Associates (Archer Daniels Midland) |
| UESX | Johnston America Corporation |
| UETU | Ocean Network Express (formerly UES International) |
| UETU | Ocean Network Express Holdings Ltd |
| UFCU | Flexi- Van Leasing Incorporated |
| UFCU | Flexi-Van Leasing |
| UFCZ | Flexi- Van Leasing Incorporated |
| UFCZ | Flexi-Van Leasing |
| UFIX | Houston Lighting and Power Company |
| UFIX | Utility Fuels |
| UFU | Urban Freight Unit |
| UGF | Under-Ground Facility |
| UGMU | Evergreen International (Greencompass Marine) |
| UGMU | Evergreen International (USA) Corporation |