| 1 | FHS | Forth Helicopter Services | Callsign: Heliscot, Name changed to Forth and Clyde Helicopters Services | GB | AVCODES |
| 2 | FHS | Forth and Clyde Helicopter Services | Callsign: Heliscot, Ceased operations. Name changed from Forth Helicopter Services | GB | AVCODES |
| 3 | FHS | Forth and Clyde Helicopter Services | | | ICAO1 |
| 4 | FHS | Fährhafen Saßnitz GmbH | Saßnitz | D | privat-bahn.de |
| 5 | FHSA | FLETES TH SA DE CV | | | SCAC4 |
| 6 | FHSC | FREIGHT SOLUTIONS LLC | | | SCAC4 |
| 7 | FHSD | FINCH HOTSHOT DELIVERY | | | SCAC4 |
| 8 | FHSE | FRESH STARTS ETC INC | | | SCAC4 |
| 9 | FHSI | FERGUSON HOT SHOT TRANSPORT INC | | | SCAC3 |
| 10 | FHSQ | FERGUSON HOT SHOT | | | SCAC3 |
| 11 | FHST | FERTIG, HARRY & SARONAH TRUCKING | | | SCAC3 |
| 12 | FHSV | FREIGHT SERVICES LTD | | | SCAC3 |
