| 1 | PYR | Pyramid Air Lines | IATA: UX, Callsign: Pyair, Designator UX recalled by IATA. | ET | AVCODES |
| 2 | PYR | Pyramid Air Lines | Callsign: Pyair, Designator UX recalled by IATA. | ET | AVCODES |
| 3 | PYR | Pyramid Air Lines | | | ICAO1 |
| 4 | PYRA | PYRAMID LOGISTICS GROUP | | | SCAC4 |
| 5 | PYRB | PYROTECNICO | | | SCAC4 |
| 6 | PYRD | PYRAMID CONTAINER LINE | | | SCAC3 |
| 7 | PYRD | PYRAMID CONTAINER LINE | | | SCAC4 |
| 8 | PYRI | PYRAMID TOFC SERVICES INC | | | SCAC3 |
| 9 | PYRL | PYRAMID LINES INC | | | SCAC3 |
| 10 | PYRL | PEYERL TRUCKING LLC | | | SCAC4 |
| 11 | PYRM | PYRAMID VAN & STORAGE CO OF MONTERE | | | SCAC3 |
| 12 | PYRM | PYRAMID SPECIALIZED CARRIERS INC | | | SCAC4 |
| 13 | PYRN | PYROSOFT INC | | | SCAC4 |
| 14 | PYRO | PYRAMID VAN AND STORAGE OF MONTEREY | | | SCAC3 |
| 15 | PYRQ | PYRAMID COMMODITIES | | | SCAC3 |
| 16 | PYRR | PRIORITY RO-RO SERVICES LLC | | | SCAC4 |
| 17 | PYRS | PYRO SPECTACULARS INCORPORATED | | | SCAC4 |
| 18 | PYRT | PYRAMID TERMINAL SERVICES INC | | | SCAC3 |
