| Abbreviation | Definition |
|---|---|
| UGI | United Gas Improvement |
| UGI | United Graphics, Inc. |
| UGI | Unocal Geothermal Indonesia |
| UGI | Users' Guides Interactive |
| UGIT | United Group Insurance Trust |
| UGJ | Umble, Gayhart, & Jacobsen, CPAs |
| UGL | Unilever Ghana Limited |
| UGL | United Gilsonite Laboratories |
| UGL | United Group, LTD. |
| UGL | Universal Gemological Laboratory |
| UGLETI | Upper Great Lakes Educational Technologies Inc |
| UGLETI | Upper Great Lakes Educational Technologies, Inc. |
| UGMC | United General Mortgage Corp (Bethlehem, PA) |
| UGP | UnderGround Productions |
| UGP | UnderGround Products |
| UGP | University Graphics, Publications, & Printing |
| UGR | User Group Relations |
| UGS | Ukrainian Gift Shop |
| UGS | United Government Services, L. L. C. |
| UGT | United Glass Technologies, Inc. |