| 1 | CSF | Clasair | Callsign: Clanair, ICAO callsign changed to Clasair | GB | AVCODES |
| 2 | CSF | Clasair | Callsign: Clasair, Ceased operations. ICAO callsign changed from Clanair | GB | AVCODES |
| 3 | CSF | Clasair | | | ICAO1 |
| 4 | CSFA | C T S TRANSPORTATION INC | | | SCAC3 |
| 5 | CSFB | COASTAL FIBERS INC | | | SCAC3 |
| 6 | CSFC | CALIFORNIA SEED & FERTILIZER CO | | | SCAC3 |
| 7 | CSFD | CAISSON FORWARDING CO INC | | | SCAC3 |
| 8 | CSFE | CAMH-STAR FORWARDING AGENCY INC | | | SCAC3 |
| 9 | CSFE | COMPLETE SURFACE TECHNOLOGIES INC | | | SCAC4 |
| 10 | CSFF | CANADIAN SUB-SURFACE ENERGY SERVICE | | | SCAC4 |
| 11 | CSFH | COASTAL FREIGHT LINES INC | | | SCAC3 |
| 12 | CSFI | CROSS-SOUND FERRY SERVICES INC | | | SCAC3 |
| 13 | CSFI | COSA FREIGHT INC | | | SCAC4 |
| 14 | CSFK | COSMO SEA FREIGHT (HK) LIMITED | | | SCAC4 |
| 15 | CSFL | CROWN SEAFOOD LTD | | | SCAC4 |
| 16 | CSFM | CASCO FARMS | | | SCAC3 |
| 17 | CSFN | CORSAIR FORWARDING CO INC | | | SCAC3 |
| 18 | CSFO | CASEY FUEL OIL CORPORATION | | | SCAC3 |
| 19 | CSFO | COMEAUS SEAFOOD LTD | | | SCAC4 |
| 20 | CSFQ | CONNORS TRANSFER LIMITED | | | SCAC4 |
| 21 | CSFR | CASCADE FREIGHT SERVICE | | | SCAC3 |
| 22 | CSFT | CROSSFIRE TRANSPORTATION INC | | | SCAC4 |
| 23 | CSFU | CMA-CGM | | F | BIC |
| 24 | CSFU | CONTAINER SHIPS LTD OY/SHIPS CONTAI | | | SCAC3 |
| 25 | CSFU | CONTAINERSHIPS LTD OY | | | SCAC4 |
| 26 | CSFV | COASTAR FREIGHT SERVICES INC | | | SCAC4 |
| 27 | CSFW | CARTER & SONS FREIGHTWAYS, Eagle Freightways, INC | | | SCAC3 |
| 28 | CSFY | CHRISTY SPECIALIZED TRANSPORT | | | SCAC4 |
