| Abbreviation | Definition |
|---|---|
| UNCN | Unico, Inc., of Arizona |
| UNCN | Unico, Incorporated, of Arizona (de-listed) |
| UNCN | Unico, Incorporated, of Arizona (de-listed) |
| UNDR | U N Dollars Corporation |
| UNDY | Unidyn Corporation |
| UNEWY | United News & Media, P. L. C. |
| UNFI | United Natural Foods, Inc. |
| UNFY | Unify Corporation |
| UNIB | University Bancorp, Inc. |
| UNIB | University Bancorp, Incorporated (de-listed) |
| UNIB | University Bancorp, Incorporated (de-listed) |
| UNII | Uni- Invest U S A, LTD. |
| UNII | Uni Invest USA, LTD. (de-listed) |
| UNII | Uni Invest USA, LTD. (de-listed) |
| UNIR | United Restaurants, Inc. |
| UNIR | United Restaurants, Incorporated (de-listed) |
| UNIR | United Restaurants, Incorporated (de-listed) |
| UNIRW | United Restaurants, Inc. Warrants A |
| UNIRW | United Restaurants, Incorporated Warrants A (de-listed) |
| UNIRW | United Restaurants, Incorporated Warrants A (de-listed) |