| 1 | WHI | Burlington Northern Inc. | added 10/1975; 1/1980; eliminated 7/1981 | | NAKINA |
| 2 | WHI | Burlington Northern R.R. Co. | added 7/1981; eliminated 7/1985; added 10/1985; eliminated 4/1995 | | NAKINA |
| 3 | WHI | Burlington Northern Inc. | 1/80; eliminated 7/81 | | NRHS |
| 4 | WHI | Burlington Northern R.R. Co. | added 7/81; eliminated 4/95 | | NRHS |
| 5 | WHI | BURLINGTON NORTHERN RAILROAD | | | PWRC |
| 6 | WHI | BNSF Railway | | | RSRV |
| 7 | WHIC | WHITE CO | | | SCAC4 |
| 8 | WHID | WHIDBEY SEATAC SHUTTLE | | | SCAC4 |
| 9 | WHIE | WHITENER ENTERPRISES INCORPORATED | | | SCAC4 |
| 10 | WHIF | WHITFIELD OIL CO INC | | | SCAC4 |
| 11 | WHIH | WHITEHURST TRANSPORT INC | | | SCAC4 |
| 12 | WHIJ | WESTERN HIWAYS | | | SCAC4 |
| 13 | WHIK | WILLIAMS HEATING INC | | | SCAC4 |
| 14 | WHIM | WHIMSY INC | | | SCAC4 |
| 15 | WHIN | WHIN EXPRESS INC | | | SCAC4 |
| 16 | WHIP | WHIPCO TRUCKING | | | SCAC4 |
| 17 | WHIR | WHITE INC | | | SCAC4 |
| 18 | WHIT | WHITLEY FUEL L L C | | | SCAC4 |
| 19 | WHITEB | White Bus Company | | US-NJ | TRAFFIC |
| 20 | WHIX | Western Fruit Express Co. | 1/1950-1/1980; eliminated 1/1981 | | NAKINA |
| 21 | WHIX | Western Fruit Express Co. | 1/52-1/80; eliminated 1/81 | | NRHS |
| 22 | WHIX | WESTERN FRUIT EXPRESS CO. | | | PWRC |
| 23 | WHIZ | WAH CHANG INDUSTRY | | | PWRC |
