| 1 | RUD | Air Anastasia | ICAO1 | ||
| 2 | RUDD | RUDDWAY DRAYAGE, INC | SCAC3 | ||
| 3 | RUDE | RUDE TRANSPORTATION COMPANY, INC | SCAC3 | ||
| 4 | RUDH | RUDD, HARLAN D | SCAC3 | ||
| 5 | RUDH | RUIZ CARRILLO, IGNACIO & JUAN FRANC | SCAC4 | ||
| 6 | RUDI | RUDDS TRANSFER AND STORAGE INC | SCAC4 | ||
| 7 | RUDJ | RUDE, JOHN VAN & STORAGE COMPANY | SCAC3 | ||
| 8 | RUDK | RU-D TRUCKING | SCAC4 | ||
| 9 | RUDL | RUSSELL DELIVERY | SCAC4 | ||
| 10 | RUDN | RUDDLE TRUCKING INC | SCAC3 | ||
| 11 | RUDN | RIDEOUT CARREIRS INC | SCAC4 | ||
| 12 | RUDO | RUDOLPHS INC | SCAC3 | ||
| 13 | RUDO | RUDOLPH FREIGHT SYSTEMS INC | SCAC4 | ||
| 14 | RUDP | RUDOLPHS EXPRESS | SCAC3 | ||
| 15 | RUDP | RUDOLPHS SPECIALTY BAKERIES LTD | SCAC4 | ||
| 16 | RUDQ | RUDY TRANSFER INC | SCAC3 | ||
| 17 | RUDR | RUDY, RICHARD B INC | SCAC3 | ||
| 18 | RUDS | RUDE, MURRAY SERVICES INC | SCAC3 | ||
| 19 | RUDT | RUD, SCOTT TRUCKING INC | SCAC4 | ||
| 20 | RUDV | RUSH DELIVERY SERVICE CO | SCAC3 | ||
| 21 | RUDX | Ruddy Tank Car Co. | added 10/1968; 4/1970-7/2000; eliminated 4/2005; 7/2005 (not listed) | NAKINA | |
| 22 | RUDX | Reid's Union Dairy, Inc. | 7/1935 | NAKINA | |
| 23 | RUDX | Ruddy Tank Car Co. | added 10/68; 4/70-7/2000 | NRHS | |
| 24 | RUDX | RUDDY TANK CAR COMPANY | PWRC | ||
| 25 | RUDX | Ruddy Tank Car | RSRV | ||
| 26 | RUDX | RUDDY TANK CAR COMPANY | SCAC4 |