| 1 | PTI | Privatair SA | Callsign: Privatair, Ceased operations on 05 December 2018. | CH | AVCODES |
| 2 | PTI | Privatair | | | ICAO1 |
| 3 | PTI | PrivatAir | | CH | TRAFFIC |
| 4 | PTIA | PROCESSING TRANSPORTATION INC | | | SCAC3 |
| 5 | PTIA | PIPETEL TECHNOLOGIES INC | | | SCAC4 |
| 6 | PTIB | PERSONAL TRANSIT INC | | | SCAC3 |
| 7 | PTIB | PRESBY TRANSPORTATION INCORPORATED | | | SCAC4 |
| 8 | PTIC | PATUREL INTERNATIONAL COMPANY | | | SCAC4 |
| 9 | PTID | POTENTIAL INDUSTRIES | | | SCAC3 |
| 10 | PTID | POTENTIAL INDUSTRIES | | | SCAC4 |
| 11 | PTIE | PETITE TRANSPORTATION INC | | | SCAC3 |
| 12 | PTIE | PRIME TIME TRANSPORT CO | | | SCAC4 |
| 13 | PTIF | P T I TRUCKING MOVING STORAGE | | | SCAC3 |
| 14 | PTIG | P T TRUCKING | | | SCAC4 |
| 15 | PTIH | PANTHER TRUCKING | | | SCAC3 |
| 16 | PTIH | PACIFIC TRUCKING INC | | | SCAC4 |
| 17 | PTII | PORTS INTERNATIONAL INC | | | SCAC3 |
| 18 | PTII | PENTWATER TRANSPORTATION INC | | | SCAC4 |
| 19 | PTIJ | PENNINGTON TRANSPORTATION INC | | | SCAC4 |
| 20 | PTIK | PARENTI TRUCKING | | | SCAC3 |
| 21 | PTIL | PETERS, I TRANSPORT LTD | | | SCAC3 |
| 22 | PTIM | P T I NATIONWIDE | | | SCAC3 |
| 23 | PTIN | PINTAIL TRUCKING INC | | | SCAC3 |
| 24 | PTIO | PATTERSON TRUCKING | | | SCAC3 |
| 25 | PTIO | POTOKA TRUCKING INC | | | SCAC4 |
| 26 | PTIP | PATE TRUCKING INC | | | SCAC3 |
| 27 | PTIQ | PARRIS TRUCKING INC | | | SCAC3 |
| 28 | PTIQ | PIONEER TRANSPORTATION INC | | | SCAC4 |
| 29 | PTIS | PORT TRANSPORTATION INC | | | SCAC4 |
| 30 | PTIT | POTOMAC INDUSTRIAL TRUCKS | | | SCAC3 |
| 31 | PTIT | PROTRANS INTERNATIONAL INC | | | SCAC4 |
| 32 | PTIU | PAUWELS TRAFO | | | SCAC3 |
| 33 | PTIV | P T S INVESTMENTS INC | | | SCAC3 |
| 34 | PTIV | PROVIDENCE TRUCKING INC | | | SCAC4 |
| 35 | PTIX | Paneltech International LLC | 7/2005 (not listed) | | NAKINA |
| 36 | PTIX | PANELTECH INTERNATIONAL LLC | | | PWRC |
| 37 | PTIZ | PARKWAY TRANSPORT INCORPORATED | | | PWRC |
| 38 | PTIZ | Parkway Transport | | | RSRV |
| 39 | PTIZ | PARKWAY TRANSPORT INC | | | SCAC4 |
