| 8901 | PSLD | PLATINWAVE SHIPPING LTD | | | SCAC3 |
| 8902 | PSLD | PATRIOT SPECIALIZED | | | SCAC4 |
| 8903 | PSLE | PASLEY TRUCKING INC | | | SCAC3 |
| 8904 | PSLE | PETRO SCAN LTD | | | SCAC4 |
| 8905 | PSLF | PORT ST LUCIE MOVERS | | | SCAC3 |
| 8906 | PSLJ | P S L CARGO EXPRESS CORP | | | SCAC4 |
| 8907 | PSLL | Plymouth Short Line, Ltd. | added 10/1985; eliminated 1/1992; 1/1994-7/2005 | | NAKINA |
| 8908 | PSLL | Plymouth Short Line, Ltd. | eliminated 1/92; 1/94-7/2000 | | NRHS |
| 8909 | PSLL | PLYMOUTH SHORT LINE, LTD. | | | PWRC |
| 8910 | PSLL | Plymouth Short Line Limited | | | RSRV |
| 8911 | PSLL | PLYMOUTH SHORT LINE LTD | | | SCAC3 |
| 8912 | PSLM | PRESTIGE LIMOUSINE | | | SCAC3 |
| 8913 | PSLN | PACIFIC STAR LINE | | | SCAC3 |
| 8914 | PSLN | POSELLA, CARMEN | | | SCAC4 |
| 8915 | PSLP | PATENE DAILING LTD. | | | SCAC3 |
| 8916 | PSLP | PRO STAR LOGISTICS INC | | | SCAC4 |
| 8917 | PSLQ | PASSALACQUA AND POWELL TRUCKING | | | SCAC3 |
| 8918 | PSLQ | PASSALACQUA & POWELL TRUCKING INC | | | SCAC4 |
| 8919 | PSLR | PORTLAND SALVAGE & REPAIR INC | | | SCAC3 |
| 8920 | PSLR | P S L EXPRESS INC | | | SCAC4 |
| 8921 | PSLS | PERSONAL TAXI SERVICE | | | SCAC3 |
| 8922 | PSLT | POSTELL TRUCKING | | | SCAC3 |
| 8923 | PSLT | PROSLIDE TECHNOLOGY INC | | | SCAC4 |
| 8924 | PSLU | PORTS SHIPPING LLC | | UAE | BIC |
| 8925 | PSLW | PAULINE SHIPPING LIMITED | | | SCAC4 |
| 8926 | PSLX | Portsmouth Division, Detroit Steel Corp. | 1/1952-10/1957; eliminated 1/1959 | | NAKINA |
| 8927 | PSLX | Portsmouth Steel Corp. | 4/1947-1/1950 | | NAKINA |
| 8928 | PSLX | Portsmouth Division, Detroit Steel Corp. | 1/52-10/57; eliminated 1/59 | | NRHS |
| 8929 | PSLX | PORTSMOUTH DIV., DETROIT STEEL CORP. | | | PWRC |
| 8930 | PSLY | PASCOE, LARRY | | | SCAC3 |
| 8931 | PSLY | PS LOGISTICS INCORPORATED | | | SCAC4 |
| 8932 | PSMB | PASSMORE BROS INC | | | SCAC3 |
| 8933 | PSMC | PENNSEW | | | SCAC4 |
| 8934 | PSME | PONTOPOROS SPECIAL MARITIME ENTERPR | | | SCAC4 |
| 8935 | PSMF | PHILLIPS SHO-ME FARMS INC | | | SCAC4 |
| 8936 | PSMG | PACIFIC SHIP-MANAGERS SDN BHD | | | SCAC3 |
| 8937 | PSMG | PACIFIC SHIP MANAGERS | | | SCAC4 |
| 8938 | PSMH | PASSMORE MOBILE HOME TRANSIT | | | SCAC3 |
| 8939 | PSML | PLAINS MARKETING L P | | | SCAC4 |
| 8940 | PSMM | PRIGIPOS SPECIAL MARITIME ENTERPRIS | | | SCAC4 |
| 8941 | PSMN | PRISMA E N E | | | SCAC4 |
| 8942 | PSMQ | PERGAMOS SPECIAL MARITIME ENTERPRIS | | | SCAC4 |
| 8943 | PSMR | PROFESSIONAL MOVING & STORAGE | | | SCAC4 |
| 8944 | PSMS | PROCESOS Y SISTEMAS DE TECATE SA DE | | | SCAC4 |
| 8945 | PSMT | PRISM TRUCKING INC | | | SCAC3 |
| 8946 | PSMT | PARAMOUNT SPECIAL MARITIME ENTERPRI | | | SCAC4 |
| 8947 | PSMU | TRADING LOGISTIC SAC SRL | | I | BIC |
| 8948 | PSMU | PAIAIS DES SPORTS | | | SCAC3 |
| 8949 | PSMU | PAIAIS DES SPORTS | | | SCAC4 |
| 8950 | PSMV | PARKS MOVING & STORAGE | | | SCAC3 |
| 8951 | PSMX | Esco Industries Inc. d/b/a Performance Seed | 7/2005 (not listed) | | NAKINA |
| 8952 | PSMX | Shippers' Car Line Corp. | added 7/1954; 7/1954; eliminated 1/1955 | | NAKINA |
| 8953 | PSMX | Pennsylvania Salt Manufacturing Co. | 7/1923-1/1952; eliminated 7/1954 | | NAKINA |
| 8954 | PSMX | Pennsylvania Salt Mfg. Co. | 4/38-1/52 | | NRHS |
| 8955 | PSMX | *PENNSYLVANIA SALT MANUFACTURING CO. (SHIPPERS' CAR LINE CORP.) | | | PWRC |
| 8956 | PSMX | *RETIRED 05-26-92 ATP (6015) [PULLMAN STANDARD MANUFACTURING] | | | PWRC |
| 8957 | PSMX | +ESCO INDUSTRIES INC. d/b/a PERFORMANCE SEED | | | PWRC |
| 8958 | PSMX | PERFORMANC | | | SCAC4 |
| 8959 | PSN | Potosina Del Aire, S.A. de C.V. | Callsign: Potosina, | MEX | AVCODES |
| 8960 | PSN | Potosina Del Aire | | | ICAO1 |
| 8961 | PSNC | P S L INC | | | SCAC4 |
| 8962 | PSND | PETERSON ENTERPRISES | | | SCAC4 |
| 8963 | PSNF | PAL SHIPPING LINES INC | | | SCAC4 |
| 8964 | PSNG | PALANGA SPIRIT NAVIGATION LIMITED L | | | SCAC4 |
| 8965 | PSNH | PAXTON SHREVE & HAYS INC | | | SCAC4 |
| 8966 | PSNI | POLS ENTERPRISES LTD | | | SCAC4 |
| 8967 | PSNK | PEARSON TRUCKING | | | SCAC4 |
| 8968 | PSNL | POSEIDON INTERNATIONAL MARITIME INC | | | SCAC4 |
| 8969 | PSNM | PACKAGING SERVICES & MATERIALS | | | SCAC3 |
| 8970 | PSNO | PAISANO TRUCKING COMPANY | | | SCAC3 |
| 8971 | PSNQ | PRECISION TRANSPORT COMPANY, INC | | | SCAC3 |
| 8972 | PSNQ | PRECISION TRANSPORT CO INC | | | SCAC4 |
| 8973 | PSNR | PETERSON, ROBERT | | | SCAC3 |
| 8974 | PSNS | PERKINS & SONS TRUCKING INC | | | SCAC3 |
| 8975 | PSNS | PATTERSON SALES | | | SCAC4 |
| 8976 | PSNT | PETROLEUM SALES & TRANSPORT INC | | | SCAC3 |
| 8977 | PSNU | PARSONS CONTAINERS LTD | | GB | BIC |
| 8978 | PSNU | THE PACIFIC STEAM NAVIGATION COMPANY | | | PWRC |
| 8979 | PSNU | Pacific Steam Navigation | | | RSRV |
| 8980 | PSNU | PACIFIC STEAM NAVIGATION COMPANY | | | SCAC3 |
| 8981 | PSNU | HAMBURG SUED | | | SCAC4 |
| 8982 | PSNV | PACIFIC SCORPIO NAVIGATION INC | | | SCAC4 |
| 8983 | PSNW | PASCHALL, NORMAN W CO INC | | | SCAC3 |
| 8984 | PSNY | PARSONS OIL COMPANY INC | | | SCAC4 |
| 8985 | PSO | Aerotaxis Pegaso, S.A. De C.V. | Callsign: Aeropegaso, | MEX | AVCODES |
| 8986 | PSO | REPUBLIC STEEL (OHIO) | | | PWRC |
| 8987 | PSOA | PAS OF ALABAMA INC | | | SCAC3 |
| 8988 | PSOC | PURSER OIL CO INC | | | SCAC4 |
| 8989 | PSOE | PORTABLE STORAGE OFFICE & EQUIPMENT | | | SCAC3 |
| 8990 | PSOH | PETTYJOHN & SONS | | | SCAC4 |
| 8991 | PSOI | PASCO INC | | | SCAC3 |
| 8992 | PSOI | PASCO INC | | | SCAC4 |
| 8993 | PSOL | PRESTO LINEA INC. | | | SCAC3 |
| 8994 | PSOM | PANSOLAR SPECIAL MARITIME ENTERPRIS | | | SCAC4 |
| 8995 | PSON | PRODIGALSON VENTURES INC | | | SCAC4 |
| 8996 | PSOQ | PASO ROBLE VAN & STORAGE | | | SCAC3 |
| 8997 | PSOS | PATTERSON, MISHELLE SMITH | | | SCAC4 |
| 8998 | PSOT | PRECISION TRANSPORT | | | SCAC3 |
| 8999 | PSOU | PENTALVER TRANSPORT LIMITED | | GB | BIC |
| 9000 | PSOX | Puget Sound Power & Light Co. | added 1/1970; 4/1970-7/2000; eliminated 7/2002; 7/2005 (not listed) | | NAKINA |
