| 1 | PIC | Pacific Airlines Co. Ltd. | IATA: BL, Callsign: Pacific Express, IATA Prefix: 550, Name changed to Jetstar Pacific w.e.f. 23 May 2008. | VN | AVCODES |
| 2 | PIC | Jetstar Pacific Airlines Co. Ltd. | IATA: BL, Callsign: Pacific Express, IATA Prefix: 550, Name changed to Pacific Airlines Co. Ltd. Name changed from Pacific Airlines Co. Ltd. w.e.f. 23 May 2008. | VN | AVCODES |
| 3 | PIC | Pacific Airlines Co. Ltd. | IATA: BL, Callsign: Pacific Express, IATA Prefix: 550, Name changed from Jetstar Pacific Airlines Co. Ltd. and previously from Pacific Airlines Co. Ltd. w.e.f. 23 May 2008. | VN | AVCODES |
| 4 | PIC | Pacific Airlines | IATA: BL | | ICAO1 |
| 5 | PICB | PICORP TRANSPORT INC | | | SCAC3 |
| 6 | PICB | PICORP INC BALTIMORE | | | SCAC4 |
| 7 | PICC | PICON TRANSPORTATION INC | | | SCAC3 |
| 8 | PICC | PROLOGIC INC | | | SCAC4 |
| 9 | PICE | PICKENS ENTERPRISES INC | | | SCAC3 |
| 10 | PICE | PICKENS ENTERPRISES INC | | | SCAC4 |
| 11 | PICF | PITTS CARTAGE INC | | | SCAC3 |
| 12 | PICF | P I XPRESS INC | | | SCAC4 |
| 13 | PICG | PICKERING, ORAL G | | | SCAC3 |
| 14 | PICH | PICHE, ALAIN TRANSPORT INC | | | SCAC4 |
| 15 | PICH | Pichenot Bouillé | | F | TRAFFIC |
| 16 | PICI | PANICI TRUCKING | | | SCAC3 |
| 17 | PICI | PENTAGON LOGISTICS INC | | | SCAC4 |
| 18 | PICJ | PHAETHON INTERNATIONAL COMPANY SA | | | SCAC4 |
| 19 | PICJ | Jetstar Pacific | | VDR | TRAFFIC |
| 20 | PICK | The Pickens R.R. Co. | added 7/1973; 1/1975-1/1980; eliminated 10/1992; eliminated 10/1993; 1/1994 (not listed); eliminated 1/1995; 7/2000-7/2005 | | NAKINA |
| 21 | PICK | The Pickens R.R. Co. | added 7/73; 1/75-1/80; eliminated 10/92; eliminated 10/93; 1/94; eliminated 1/95; 7/2000 | | NRHS |
| 22 | PICK | PICKENS RAILWAY CO. | | | PWRC |
| 23 | PICK | Pickens Railroad | | | RSRV |
| 24 | PICK | PICKENS RAILROAD COMPANY | | | SCAC3 |
| 25 | PICK | PICKENS RAILWAY COMPANY | | | SCAC4 |
| 26 | PICK | Pickens Railway | | USA | TRAFFIC |
| 27 | PICL | PIONEER CARLOADING COMPANY (DIV OF | | | SCAC3 |
| 28 | PICL | PIONEER CARLOADING COMPANY (DIV OF | | | SCAC4 |
| 29 | PICM | PICKELNER, MORRIS | | | SCAC3 |
| 30 | PICM | PREMIER FREIGHT INC | | | SCAC4 |
| 31 | PICN | PICKETT TRUCKING | | | SCAC3 |
| 32 | PICO | PIERCE & SON TRUCKING | | | SCAC3 |
| 33 | PICO | PRAIRIE INTERNATIONAL CONTAINER & D | | | SCAC4 |
| 34 | PICP | PRINCETON INDUSTRIES CORP, P I C | | | SCAC3 |
| 35 | PICP | PLANES MOVING & STORAGE COMPANY OF | | | SCAC4 |
| 36 | PICQ | PICKENS-KANE MOVING & STORAGE CO | | | SCAC3 |
| 37 | PICS | PIC | | | SCAC4 |
| 38 | PICT | PICO TRANSPORTATION CO INC | | | SCAC3 |
| 39 | PICU | AUTOTRASPORTI PICCININI S.R.L. | | I | BIC |
| 40 | PICU | PICKFORDS REMOVALS LTD | | | PWRC |
| 41 | PICU | Pickfords Removals Limited | | | RSRV |
| 42 | PICU | PICKFORDS REMOVALS LTD | | | SCAC3 |
| 43 | PICU | AUTOTRASPORTI PICCININI S A S | | | SCAC4 |
| 44 | PICW | PIC-WALSH FREIGHT CO | | | PWRC |
| 45 | PICW | PLASMA INNOVATION COOKWARE INC | | | SCAC4 |
| 46 | PICX | Pioneer Ice Cream Division, The Borden Corp. | 1/1950 | | NAKINA |
| 47 | PICX | The Penn Iron & Coal Co. | 8/1920-7/1923 | | NAKINA |
| 48 | PICX | *PENN IRON & COAL CO. | | | PWRC |
| 49 | PICX | *PIONEER ICE CREAM DIV., THE BORDON CORP. | | | PWRC |
| 50 | PICX | TRINITY MANUFACTURING INC | | | SCAC4 |
| 51 | PICY | PERRY ICE CREAM COMPANY INC | | | SCAC3 |
| 52 | PICZ | PLYMOUTH INDUSTRY COMPLEX | | | PWRC |
