| 1 | POL | Rikspolisstyrelsen | | S | AVCODES |
| 2 | POL | Polar International Airlines | Callsign: Polar, | USA | AVCODES |
| 3 | POL | Polar Airways, Inc. | Callsign: Polar Airways, | USA | AVCODES |
| 4 | POL | Rikspolisstyrelsen | | | ICAO1 |
| 5 | POL | Police | | X | TRAFFIC |
| 6 | POLA | POLYANKA MARITIME COMPANY LIMINTED | | | SCAC3 |
| 7 | POLA | PHILLIPS OIL LLC | | | SCAC4 |
| 8 | POLAF | Polish Air Force | | PL | TRAFFIC |
| 9 | POLAK | Usługi Przewozowe Henryk Polak | City: Chorzów | PL | TRAFFIC |
| 10 | POLB | POLANCO TRUCKING INC | | | SCAC4 |
| 11 | POLBUS | PKS Polbus | | PL | TRAFFIC |
| 12 | POLC | PRENDERGAST OIL COMPANY INC | | | SCAC4 |
| 13 | POLD | PILOTTO, LINDA | | | SCAC4 |
| 14 | POLE | POLLEI TRUCKING | | | SCAC3 |
| 15 | POLF | POOLE TRANSFER INC | | | SCAC3 |
| 16 | POLG | POLING TRANSPORTATION CORP | | | SCAC3 |
| 17 | POLH | POLKINGHORN MOLASSES INC | | | SCAC3 |
| 18 | POLH | POLTRANS INC | | | SCAC4 |
| 19 | POLI | POLING TRUCKING INC | | | SCAC3 |
| 20 | POLI | POLING TRUCKING INC | | | SCAC4 |
| 21 | POLI | Polimeri AD /Полимери АД | | BG | VKM |
| 22 | POLJ | POLLEY, KEITH H | | | SCAC3 |
| 23 | POLJ | POLJET EXPRESS INC | | | SCAC4 |
| 24 | POLK | POLK, H | | | SCAC3 |
| 25 | POLK | ČSAD POLKOST | | CZ | TRAFFIC |
| 26 | POLM | POLMAN TRANSFER INC | | | SCAC3 |
| 27 | POLM | POLMAN TRANSFER INC | | | SCAC4 |
| 28 | POLN | POLLON M | | | SCAC3 |
| 29 | POLN | PELORUS OCEAN LINE LTD | | | SCAC4 |
| 30 | POLO | POLOIL INC | | | SCAC3 |
| 31 | POLO | POLLITOS TRUCKING | | | SCAC4 |
| 32 | POLQ | POOL TRANSFER & STORAGE INC | | | SCAC3 |
| 33 | POLR | POLO EXPRESS | | | SCAC4 |
| 34 | POLS | POLO TRUCKING | | | SCAC4 |
| 35 | POLT | POLARIS TRANSPORT CARRIERS INC | | | SCAC4 |
| 36 | POLU | PANOCEAN | | ROK | BIC |
| 37 | POLU | POLISH OCEAN LINES | | | PWRC |
| 38 | POLU | Polish Ocean Lines Gyndia American Lines | | | RSRV |
| 39 | POLU | POLISH OCEAN LINES GYDNIA AMERICAN LINES | | | SCAC3 |
| 40 | POLV | POOLS VAN & STORAGE | | | SCAC3 |
| 41 | POLV | POWERLINE LOGISTICS SERVICES | | | SCAC4 |
| 42 | POLW | PRO OIL LLC | | | SCAC4 |
| 43 | POLX | The PolyOne Co. | added 1/2002; 7/2005 | | NAKINA |
| 44 | POLX | Prest-O-Lite Co., Inc. | 1/1943-4/1961 (not listed) | | NAKINA |
| 45 | POLX | Prudential Oil Corp. | 8/1920-7/1923 | | NAKINA |
| 46 | POLX | Prest-O-Lite Co., Inc. | 1/52-4/61 | | NRHS |
| 47 | POLX | *PRUDENTIAL OIL CORP. | | | PWRC |
| 48 | POLX | *PREST-O-LITE CO., INC. | | | PWRC |
| 49 | POLX | +POLYONE CO. | | | PWRC |
| 50 | POLX | PolyOne | | | RSRV |
| 51 | POLX | POLYONE CORPORATION | | | SCAC4 |
| 52 | POLX | Polski Express | | PL | TRAFFIC |
| 53 | POLY | POLYMER DISTRIBUTION INC | | | SCAC4 |
| 54 | POLZ | POLISH OCEAN LINES | | | PWRC |
| 55 | POLZ | Polish Ocean Lines | | | RSRV |
| 56 | POLZ | POLISH OCEAN LINES | | | SCAC4 |
