| 1 | SPM | Air St. Pierre | IATA: PJ, IATA Prefix: 638, Name changed to Air Saint Pierre | SPM | AVCODES |
| 2 | SPM | Air Saint Pierre | IATA: PJ, IATA Prefix: 638, Name changed from Air St. Pierre | SPM | AVCODES |
| 3 | SPM | Air Saint Pierre | IATA: PJ | | ICAO1 |
| 4 | SPM | Southern Pacific R.R. Co. of Mexico | 8/1920-7/1954 | | NAKINA |
| 5 | SPM | Southern Pacific R.R. of Mexico | 4/38-1/52 | | NRHS |
| 6 | SPM | *SOUTHERN PACIFIC RAILROAD CO. OF MEXICO | | | PWRC |
| 7 | SPM | *SOUTHLAND PAPER MILLS, INC. | | | PWRC |
| 8 | SPM | Southern Pacific R.R. of Mexico | | MEX | TRAFFIC |
| 9 | SPMA | SUPREME AUTO TRANSPORT INC | | | SCAC4 |
| 10 | SPMD | SPECTRUM PAPER SA DE CV | | | SCAC4 |
| 11 | SPME | SUPREME INTERNATIONAL LIMITED | | | SCAC4 |
| 12 | SPMH | SPIRIT OF MARANATHA SERVICES, LTD | | | SCAC1 |
| 13 | SPMI | SUMMIT POLYMERS INC | | | SCAC4 |
| 14 | SPMJ | SAN PEDRO TRANSPORT | | | SCAC4 |
| 15 | SPMO | SPEED MOTOR EXPRESS OF WESTERN NEW YORK, INC | | | SCAC1 |
| 16 | SPMO | SPEED MOTOR EXPRESS OF WESTERN NEW | | | SCAC4 |
| 17 | SPMQ | SUPERIOR PETROLEUM TRANSPORT LLC | | | SCAC4 |
| 18 | SPMT | SPIRIT-MILLER TRUCKING LLC | | | SCAC4 |
| 19 | SPMV | SCHNEIDE | | | SCAC4 |
| 20 | SPMW | UNION PACIFIC RAILROAD [SOUTHERN PACIFIC RAILROAD] (FOR MAINTENANCE OF WAY EQUIP.] | | | PWRC |
| 21 | SPMW | Southern Pacific Railroad (Union Pacific Railroad) | | | RSRV |
| 22 | SPMX | Southport Mill, Ltd. | 8/1920-7/1923 | | NAKINA |
| 23 | SPMX | Springfield Missouri Packing Co. | 7/1937-4/1938 | | NAKINA |
| 24 | SPMX | Springfield Missouri Packing Co. | Apr-38 | | NRHS |
| 25 | SPMX | *SOUTHPORT MILL. LTD. | | | PWRC |
| 26 | SPMX | *SPRINGFIELD MISSOURI PACKING CO. | | | PWRC |
| 27 | SPMY | SPECIAL MATERIALS COMPANY | | | SCAC4 |
