| ID | Name | Type |
|---|---|---|
| #14937 | Uninstall Team | Z |
| #14940 | Unique | Z |
| #14938 | Unique Computer Products | Z |
| #14939 | Unique Computer Services | P |
| #17846 | Unique Software | S |
| #15990 | Unisoft | Z |
| #14941 | Unit 2 Software | Z |
| #22374 | Unit 5 | P |
| #17847 | UnitSoft | S |
| #14942 | United Artists Inc | Z |
| #19315 | United Company Phoenix | P |
| #14943 | United Features Syndicate Inc | Z |
| #14944 | United Film Distribution Company | Z |
| #14945 | United Press Syndicate | Z |
| #17848 | Unity Productions | M |
| #14946 | UniversItalia | Z |
| #14947 | Universal | ? |
| #14948 | Universal City Studios Inc | Z |
| #14949 | Universal Computer Research | Z |
| #17849 | Universal Express Software | A |