| 1 | PCS | Air Palace, S.A. de C.V. | Callsign: Air Palace, | MEX | AVCODES |
| 2 | PCS | Air Palace | | | ICAO1 |
| 3 | PCS | PALMER CHARTER SERVICE | | | SCAC4 |
| 4 | PCSA | PACIFIC STAR EXPRESS CORP | | | SCAC4 |
| 5 | PCSB | PRIMARY COURIER SERVICE | | | SCAC4 |
| 6 | PCSC | PAN CARIBBEAN STEANSHIP CO | | | PWRC |
| 7 | PCSC | PACIFIC COAST SIGHTSEEING TOURS AND | | | SCAC3 |
| 8 | PCSC | PACIFIC CA SYSTEMS INC | | | SCAC4 |
| 9 | PCSD | PRIORITY CONTAINER SERVICE INC | | | SCAC4 |
| 10 | PCSE | PACIFIC STATES EXPRESS | | | SCAC3 |
| 11 | PCSE | PENTA COMPLETIONS SUPPLY & SERVICES | | | SCAC4 |
| 12 | PCSF | PICASSO TRANSFERS | | | SCAC4 |
| 13 | PCSG | PACIFIC COASTAL SAND & GRAVEL INC | | | SCAC3 |
| 14 | PCSH | PROMINENT CUSTOM HOMES | | | SCAC3 |
| 15 | PCSI | PCS EXPRESS INC | | | SCAC3 |
| 16 | PCSI | PCS | | | SCAC4 |
| 17 | PCSJ | PIER CONTAINER SERVICE INC | | | SCAC3 |
| 18 | PCSK | PACIFIC COAST TRANSPORTATION INC | | | SCAC4 |
| 19 | PCSL | PCS LINE | | | SCAC3 |
| 20 | PCSL | PCS LINE | | | SCAC4 |
| 21 | PCSM | PACIFIC COAST MOTOR CARRIERS | | | SCAC3 |
| 22 | PCSM | PACSUM SHIPPING INC | | | SCAC4 |
| 23 | PCSN | PC SERVICES INC | | | SCAC3 |
| 24 | PCSN | PRO CARTAGE SYSTEMS INC | | | SCAC4 |
| 25 | PCSO | PRICE & SONS INC | | | SCAC3 |
| 26 | PCSO | PACIFIC COAST SIGHTSEEING TOURS & C | | | SCAC4 |
| 27 | PCSR | PRONTO COURIER SERVICE | | | SCAC3 |
| 28 | PCSR | PRONTO DELIVERY SERVICE | | | SCAC4 |
| 29 | PCSS | PROFESSIONAL CARRIER SERVICES INC | | | SCAC3 |
| 30 | PCST | PCS NITROGEN TRINIDAD LTD | | | SCAC4 |
| 31 | PCSU | INDRIVETEC AG | | CH | BIC |
| 32 | PCSU | DONG YOUNG SHIPPIN G CO LTD | | | SCAC4 |
| 33 | PCSV | PORT CITY SERVICE INC | | | SCAC3 |
| 34 | PCSW | PACIFIC CHAMPION SERVICE CORP | | | SCAC3 |
| 35 | PCSX | The CIT Group/Capital Finance, Inc. | added 1/2006 | | NAKINA |
| 36 | PCSX | PLM International, Inc. | added 4/1991; 1/1994-7/2005; eliminated 1/2006 | | NAKINA |
| 37 | PCSX | Packers Cold Storage, Inc. | added 7/1979; 1/1980; eliminated 7/1980 | | NAKINA |
| 38 | PCSX | Pittsburgh Crucible Steel Co. | 7/1930-1/1941 | | NAKINA |
| 39 | PCSX | Pittsburgh Crucible Steel Co. | Apr-38 | | NRHS |
| 40 | PCSX | Packers Cold Storage, Inc. | added 7/79; 1/80; eliminated 7/80 | | NRHS |
| 41 | PCSX | PLM International, Inc. | added 4/91; 1/94-7/2000 | | NRHS |
| 42 | PCSX | *PITTSBURGH CRUCIBLE STEEL CO. | | | PWRC |
| 43 | PCSX | *PACKERS COLD STORAGE, INC. | | | PWRC |
| 44 | PCSX | +THE CIT GROUP/CAPITAL FINANCE, INC.[(PLMX) PLM INTERNATIONAL, INC.; GE RAIL SERVICES} | | | PWRC |
| 45 | PCSX | GE Rail Services | | | RSRV |
| 46 | PCSX | CIT GROUP/CAPITAL FINANCE INC, THE | | | SCAC4 |
| 47 | PCSY | PETROCARD SYSTEMS INC | | | SCAC4 |
| 48 | PCSZ | PACIFIC STANDARD CORP. | | | PWRC |
