| 1 | PCM | Westair Industries, Inc. | Callsign: Pac Valley, | USA | AVCODES |
| 2 | PCM | Westair Industries | | | ICAO1 |
| 3 | PCM | Petrochem Aussenhandels GmbH | | DE | VKM |
| 4 | PCMA | PIZANA CABRERA, NORMA ALICIA | | | SCAC4 |
| 5 | PCMB | PROLENC MANUFACTURING INC | | | SCAC4 |
| 6 | PCMC | PM AG PRODUCTS INCORPORATED | | | SCAC3 |
| 7 | PCMC | PACIFIC MOVERS INC | | | SCAC4 |
| 8 | PCMD | P C M DELIVERY SERVICE | | | SCAC3 |
| 9 | PCME | PRECISE COURIER & MESSENGER INC | | | SCAC4 |
| 10 | PCMG | PORT CITY MOVING & STORAGE INC | | | SCAC3 |
| 11 | PCMG | P C MESSENGER SERVICE | | | SCAC4 |
| 12 | PCMI | PACIFIC MIDWEST INC | | | SCAC3 |
| 13 | PCMK | PACEMAKERS LTD INC | | | SCAC3 |
| 14 | PCMK | PEACE, TOM TRUCKING CO | | | SCAC4 |
| 15 | PCML | PACIFIC COMMERCE LINE VANCOUVER CAN | | | SCAC3 |
| 16 | PCML | PACIFIC COMMERCE LINE VANCOUVER CAN | | | SCAC4 |
| 17 | PCMN | PACIFIC MAGNETICS INC | | | SCAC4 |
| 18 | PCMO | PACIFIC COAST MOVING AND STORAGE | | | SCAC3 |
| 19 | PCMO | ONE HUNDRED PERCENT (100%) | | | SCAC4 |
| 20 | PCMQ | PACIFIC CONTAINER MANAGEMENT SERVIC | | | SCAC4 |
| 21 | PCMR | PLEASURE CRAFT MARINE ENGINE CO | | | SCAC3 |
| 22 | PCMS | PENN, C M & SONS INC | | | SCAC3 |
| 23 | PCMS | PACIFIC COMMERCIAL SERVICES LLC | | | SCAC4 |
| 24 | PCMT | PCM TRUCKING, INC | | | SCAC3 |
| 25 | PCMT | PCM TRANSPORT LLC | | | SCAC4 |
| 26 | PCMU | UNITED INITIATORS GMBH | | D | BIC |
| 27 | PCMU | PEROXID-CHEM | | | SCAC4 |
| 28 | PCMW | PINELLAS COMPRESSOR & MOTOR WORKS I | | | SCAC3 |
| 29 | PCMW | PACIFIC COAST MARINE WINDSHIELDS LT | | | SCAC4 |
| 30 | PCMX | Petro-Chem Marketing Co. | added 7/1968; 4/1970-1/1980; eliminated 4/1992 | | NAKINA |
| 31 | PCMX | Petro-Chem Marketing, Inc. | added 1/1965; 7/1965-10/1966; eliminated 7/1968 | | NAKINA |
| 32 | PCMX | Petro-Chem Marketing, Inc. | added 1/65; 7/65-10/66; eliminated 7/68 | | NRHS |
| 33 | PCMX | Petro-Chem Marketing Co. | added 7/68; 4/70-1/80; eliminated 4/92 | | NRHS |
| 34 | PCMX | RETIRED 02-18-92 ATP (1462) [PETRO-CHEM MARKETING CO.] | | | PWRC |
| 35 | PCMX | Petro-Chem Marketing | | | RSRV |
| 36 | PCMX | PETRO-CHEM MARKETING INC | | | SCAC3 |
| 37 | PCMZ | PENINSULAR COMMUTER (SAN MATEO COUNTY TRANSIT DISTRICT) | | | PWRC |