| 1 | UPFE | Union Pacific R.R. Co. | 1/1975-7/2005 | | NAKINA |
| 2 | UPFE | Union Pacific R.R. Co. | 1/75-7/2000 | | NRHS |
| 3 | UPFE | UNION PACIFIC RAILROAD COMPANY [PACIFIC FRUIT EXPRESS] | | | PWRC |
| 4 | UPFE | Pacific Fruit Express (Union Pacific Railroad) | | | RSRV |
| 5 | UPFS | UNION PACIFIC FREIGHT SERVICE | | | SCAC1 |
| 6 | UPFS | UNION PACIFIC DISTRIBUTION SERVICES | | | SCAC4 |
| 7 | UPFU | (UPUU) UNION PACIFIC BULKTAINER SERVICE | | | PWRC |
| 8 | UPFU | Union Pacific Bulktainer Service | | | RSRV |
| 9 | UPFU | UNION PACIFIC MOTOR FREIGHT CO. | | | SCAC4 |
| 10 | UPFX | United States Pipe and Foundry Co. | 7/1935-1/1943 | | NAKINA |
| 11 | UPFX | United States Pipe and Foundry Co. | Apr-38 | | NRHS |
| 12 | UPFX | UNITED STATES PIPE & FOUNDRY CO. | | | PWRC |
