| 1 | FSB | FSB Flugservice & Development GmbH | Callsign: Seabird, | D | AVCODES |
| 2 | FSB | Flight Services International Ltd. | Callsign: Flint, | GB | AVCODES |
| 3 | FSB | FSB Flugservice & Development | | | ICAO1 |
| 4 | FSB | Frederikshavn - Skagen Banen | 1890 - 1924 | DK | jernbanen.dk |
| 5 | FSB | Frederikshavn - Skagen Banen | 1890 - 1924 | DK | TRAFFIC |
| 6 | FSBB | FOUR (4) S TRANSPORT LLC | | | SCAC4 |
| 7 | FSBE | FIVE SIX FIVE TWO TWO ONE ZERO (565 | | | SCAC4 |
| 8 | FSBF | FOUILLARD STEEL SUPPLIES LTD | | | SCAC4 |
| 9 | FSBK | FATHER SAMS BAKERY | | | SCAC4 |
| 10 | FSBT | FOUR-STAR (4-STAR) BULK TRANSPORT I | | | SCAC4 |
