| Abbreviation | Definition |
|---|---|
| UQT | UPOS Quick Tech |
| UQV | Ultra- Quality Vision |
| UQY | Ultimate Quality of York |
| URA | Universities Research Association, Inc. |
| URB | Underwriters Rating Board |
| URC | United Refining Company |
| URC | Universal Robina Corp |
| URC | Universal Rundle Corporation |
| URCI | United Radio Communications Inc |
| URD | United Research and Development America, Inc. |
| URD | yoU aRe Drawing |
| URE | Union Rural Electric |
| UREC | Urban Restoration Enhancement Corporation |
| URG | Ultimate Race Graphics |
| URG | United Recyclers Group |
| URI | United Rentals Inc |
| URI | United Resources, Inc. |
| URMC | United Roblox Marine Corp |
| URMC | Utility Risk Management Corporation |
| URN | Union Resources Network |