| 1 | SMD | Servicios Aereos la Marquesa, S.A. de C.V. | Callsign: Servicios Marquesa, | MEX | AVCODES |
| 2 | SMD | SMJet S.r.l. | Callsign: Skymap, | RSM | AVCODES |
| 3 | SMD | Servicios Aereos La Marquesa | | | ICAO1 |
| 4 | SMD | *SHOWA LINE, LTD. | | | PWRC |
| 5 | SMD | *STATE OF MARYLAND | | | PWRC |
| 6 | SMD | Slezskomoravská Dráha a.s. | | CZ | TRAFFIC |
| 7 | SMD | SLEZSKOMORAVSKÁ DRÁHA a.s. | | CZ | VKM |
| 8 | SMDA | SMD TRANSPORTATION MANAGEMENT INC | | | SCAC4 |
| 9 | SMDD | SMITH, C R SMITH TRUCKING (DEDICATE | | | SCAC4 |
| 10 | SMDG | SMITH, DENNIS TRUCKING | | | SCAC4 |
| 11 | SMDH | S M D INC | | | SCAC4 |
| 12 | SMDI | SMALL, DON & SONS OIL DISTRIBUTION | | | SCAC4 |
| 13 | SMDM | S & M TRANSPORT LLC | | | SCAC4 |
| 14 | SMDP | SLAWSON MANUFACTURING COMPANY INC | | | SCAC4 |
| 15 | SMDS | S. M. D. S | | | SCAC1 |
| 16 | SMDT | SCHMIDT AND SONS INC | | | SCAC4 |
| 17 | SMDU | 3M COMPANY | | USA | BIC |
| 18 | SMDU | MINNESOTA MINING AND MANUFACTURING - 3M COMPANY | | | PWRC |
| 19 | SMDU | Minnesota Mining and Manufacturing (3M) | | | RSRV |
| 20 | SMDU | 3M COMPANY | | | SCAC3 |
| 21 | SMDU | SPECIALTY MATERIALS DIVISION 3M COM | | | SCAC4 |
| 22 | SMDV | SUPERIOR MANUFACTURING DIVISION | | | SCAC4 |
