| Abbreviation | Definition |
|---|---|
| UIX | Universal Information Exchange |
| UJ | Universal Jobs |
| UJA | Universal Jet Aviation |
| UJA | Universal Judgments & Acquisitions |
| UJC | UnitedJewelers.Com |
| UJL | Unlimited Jazz, Ltd. |
| UJP | U S Japan Publication New York, Inc. |
| UJP | Universal Joint Productions Company |
| UJS | Universal Janitorial Services |
| UJS | Urban, Jürgensen, & Sønner Copenhagen |
| UJT | Universal Jet Trading, Inc. |
| UJV | Unincorporated Joint Venture |
| UKAC | U K & Associates Corporation |
| UKB | UK Betting, PLC. |
| UKC | Ugly Kidz Company |
| UKC | UK Coal, PLC. |
| UKCC | United Kingdom Commercial Corporation |
| UKD | UK Distributors ( Footwear Distributors), Ltd. |
| UKD | UKDiscovered.com |
| UKD | United Kingdom Dredging |