| Abbreviation | Definition |
|---|---|
| UXC | Ultimate X Centers |
| UXC | Ux Consulting Company, LLC |
| UXG | U & X Group, Inc. |
| UXG | U & X Group, Incorporated |
| UXI | Ultra-X, Inc. |
| UXL | Universal Export Limited, Inc. |
| UXN | Ultradesign Extreme Network |
| UXP | Universal Expeditions |
| UXT | User Xperience Team |
| UXU | Underground Experts United |
| UYB | United Yacht Broker |
| UYB | Up Your Business, Inc. |
| UYE | Unipart Yanagawa Engineering |
| UYM | Universal Yacht Management |
| UYM | Up yours, Mortimer |
| UYS | United Youth Sports, Inc. |
| UYS | Up Yer Sleeve |
| UYT | Unipart Yachiyo Technology |
| UYT | United Yacht Transport |
| UZC | OneZero Community |