| 1 | PTH | Proteus Helicopters | IATA: HN, Callsign: Proteus, Name changed to INAER Helicopter France. | F | AVCODES |
| 2 | PTH | INAER Helicopter France | IATA: HN, Callsign: Proteus, Name changed to Babcock Mission Critical Services France. Name changed from Proteus Helicopters. | F | AVCODES |
| 3 | PTH | Babcock Mission Critical Services France | IATA: HN, Callsign: Proteus, Name changed from INAER Helicopter France. Previously name changed from Proteus Helicopters. | F | AVCODES |
| 4 | PTH | Proteus Helicopteres | | | ICAO1 |
| 5 | PTHA | PETRO HAULER INC | | | SCAC4 |
| 6 | PTHB | PERFORMANCE TIRE SERVICE COMPANY | | | SCAC4 |
| 7 | PTHD | PATHFINDER TRANSPORTATION LTD | | | SCAC3 |
| 8 | PTHD | PRINCL TRUCKING LLC | | | SCAC4 |
| 9 | PTHF | PATHFINDER (DIV OF TWTY) | | | SCAC3 |
| 10 | PTHH | PRO-TECH RIGGING & HEAVY HAUL LTD | | | SCAC4 |
| 11 | PTHI | PARKER TRUCKING AND HARVESTING INC | | | SCAC3 |
| 12 | PTHI | PROUD 2 HAUL INC | | | SCAC4 |
| 13 | PTHM | PATHFINDER TRUCK LINES | | | SCAC4 |
| 14 | PTHO | PALMERS, TERRY HORSE TRANSPORTATION | | | SCAC3 |
| 15 | PTHQ | PORT OF HOUSTON AUTHORITY | | | SCAC3 |
| 16 | PTHQ | PASSENGER | | | SCAC4 |
| 17 | PTHR | PRATHER TRANSFER | | | SCAC3 |
| 18 | PTHR | PETERSSEN TRANSPORT | | | SCAC4 |
| 19 | PTHS | PRUITT THOMPSON & SONS | | | SCAC3 |
| 20 | PTHT | PANTHER TRANSPORTATION INC | | | SCAC3 |
| 21 | PTHT | PANTHERS TRUCKING | | | SCAC4 |
| 22 | PTHX | PORT TERMINAL RAILROAD OF HOUSTON | | | PWRC |
