| 1 | PSL | Aeroservicios Corporativos de San Luis, S.A. de C.V. | Callsign: Corsan, | MEX | AVCODES |
| 2 | PSL | Aeroservicios Corporativos De San Luis | | | ICAO1 |
| 3 | PSL | Illinois Central R.R. | 7/1965 | | NAKINA |
| 4 | PSL | Peabody Short Line R.R. | 4/1961 | | NAKINA |
| 5 | PSL | Peabody Short Line R.R. | Apr-61 | | NRHS |
| 6 | PSL | Illinois Central R.R. | Jul-65 | | NRHS |
| 7 | PSL | CANADIAN NATIONAL RWY. [ILLINOIS CENTRAL RAILROAD; PEABODY SHORT LINE] | | | PWRC |
| 8 | PSL | Peabody Short Line (Canadian National Railways) | | | RSRV |
| 9 | PSL | Peabody Short Line R.R. | | USA | TRAFFIC |
| 10 | PSLA | PACIFICTOP SHIPPING LIMITED | | | SCAC4 |
| 11 | PSLB | PURSE LINE BAIT | | | SCAC4 |
| 12 | PSLC | PENSKE LOGISTICS CANADA LTD | | | SCAC4 |
| 13 | PSLD | PLATINWAVE SHIPPING LTD | | | SCAC3 |
| 14 | PSLD | PATRIOT SPECIALIZED | | | SCAC4 |
| 15 | PSLE | PASLEY TRUCKING INC | | | SCAC3 |
| 16 | PSLE | PETRO SCAN LTD | | | SCAC4 |
| 17 | PSLF | PORT ST LUCIE MOVERS | | | SCAC3 |
| 18 | PSLJ | P S L CARGO EXPRESS CORP | | | SCAC4 |
| 19 | PSLL | Plymouth Short Line, Ltd. | added 10/1985; eliminated 1/1992; 1/1994-7/2005 | | NAKINA |
| 20 | PSLL | Plymouth Short Line, Ltd. | eliminated 1/92; 1/94-7/2000 | | NRHS |
| 21 | PSLL | PLYMOUTH SHORT LINE, LTD. | | | PWRC |
| 22 | PSLL | Plymouth Short Line Limited | | | RSRV |
| 23 | PSLL | PLYMOUTH SHORT LINE LTD | | | SCAC3 |
| 24 | PSLM | PRESTIGE LIMOUSINE | | | SCAC3 |
| 25 | PSLN | PACIFIC STAR LINE | | | SCAC3 |
| 26 | PSLN | POSELLA, CARMEN | | | SCAC4 |
| 27 | PSLP | PATENE DAILING LTD. | | | SCAC3 |
| 28 | PSLP | PRO STAR LOGISTICS INC | | | SCAC4 |
| 29 | PSLQ | PASSALACQUA AND POWELL TRUCKING | | | SCAC3 |
| 30 | PSLQ | PASSALACQUA & POWELL TRUCKING INC | | | SCAC4 |
| 31 | PSLR | PORTLAND SALVAGE & REPAIR INC | | | SCAC3 |
| 32 | PSLR | P S L EXPRESS INC | | | SCAC4 |
| 33 | PSLS | PERSONAL TAXI SERVICE | | | SCAC3 |
| 34 | PSLT | POSTELL TRUCKING | | | SCAC3 |
| 35 | PSLT | PROSLIDE TECHNOLOGY INC | | | SCAC4 |
| 36 | PSLU | PORTS SHIPPING LLC | | UAE | BIC |
| 37 | PSLW | PAULINE SHIPPING LIMITED | | | SCAC4 |
| 38 | PSLX | Portsmouth Division, Detroit Steel Corp. | 1/1952-10/1957; eliminated 1/1959 | | NAKINA |
| 39 | PSLX | Portsmouth Steel Corp. | 4/1947-1/1950 | | NAKINA |
| 40 | PSLX | Portsmouth Division, Detroit Steel Corp. | 1/52-10/57; eliminated 1/59 | | NRHS |
| 41 | PSLX | PORTSMOUTH DIV., DETROIT STEEL CORP. | | | PWRC |
| 42 | PSLY | PASCOE, LARRY | | | SCAC3 |
| 43 | PSLY | PS LOGISTICS INCORPORATED | | | SCAC4 |
