| 1 | PSMB | PASSMORE BROS INC | | | SCAC3 |
| 2 | PSMC | PENNSEW | | | SCAC4 |
| 3 | PSME | PONTOPOROS SPECIAL MARITIME ENTERPR | | | SCAC4 |
| 4 | PSMF | PHILLIPS SHO-ME FARMS INC | | | SCAC4 |
| 5 | PSMG | PACIFIC SHIP-MANAGERS SDN BHD | | | SCAC3 |
| 6 | PSMG | PACIFIC SHIP MANAGERS | | | SCAC4 |
| 7 | PSMH | PASSMORE MOBILE HOME TRANSIT | | | SCAC3 |
| 8 | PSML | PLAINS MARKETING L P | | | SCAC4 |
| 9 | PSMM | PRIGIPOS SPECIAL MARITIME ENTERPRIS | | | SCAC4 |
| 10 | PSMN | PRISMA E N E | | | SCAC4 |
| 11 | PSMQ | PERGAMOS SPECIAL MARITIME ENTERPRIS | | | SCAC4 |
| 12 | PSMR | PROFESSIONAL MOVING & STORAGE | | | SCAC4 |
| 13 | PSMS | PROCESOS Y SISTEMAS DE TECATE SA DE | | | SCAC4 |
| 14 | PSMT | PRISM TRUCKING INC | | | SCAC3 |
| 15 | PSMT | PARAMOUNT SPECIAL MARITIME ENTERPRI | | | SCAC4 |
| 16 | PSMU | TRADING LOGISTIC SAC SRL | | I | BIC |
| 17 | PSMU | PAIAIS DES SPORTS | | | SCAC3 |
| 18 | PSMU | PAIAIS DES SPORTS | | | SCAC4 |
| 19 | PSMV | PARKS MOVING & STORAGE | | | SCAC3 |
| 20 | PSMX | Esco Industries Inc. d/b/a Performance Seed | 7/2005 (not listed) | | NAKINA |
| 21 | PSMX | Shippers' Car Line Corp. | added 7/1954; 7/1954; eliminated 1/1955 | | NAKINA |
| 22 | PSMX | Pennsylvania Salt Manufacturing Co. | 7/1923-1/1952; eliminated 7/1954 | | NAKINA |
| 23 | PSMX | Pennsylvania Salt Mfg. Co. | 4/38-1/52 | | NRHS |
| 24 | PSMX | *PENNSYLVANIA SALT MANUFACTURING CO. (SHIPPERS' CAR LINE CORP.) | | | PWRC |
| 25 | PSMX | *RETIRED 05-26-92 ATP (6015) [PULLMAN STANDARD MANUFACTURING] | | | PWRC |
| 26 | PSMX | +ESCO INDUSTRIES INC. d/b/a PERFORMANCE SEED | | | PWRC |
| 27 | PSMX | PERFORMANC | | | SCAC4 |
