| 1 | CYR | Ryanair UK Limited | Callsign: Budget Jet, Merged into Parent Company. Founded as Dawndell Ltd on 30 May 1985. Name changed to Ryan Air UK Ltd on 27 June 1985. Name then changed to Ryanair UK Ltd pn 01 November 1995. | GB | AVCODES |
| 2 | CYRA | COUNTRY ROADS | | | SCAC3 |
| 3 | CYRB | CHRISTY, ROBERT | | | SCAC4 |
| 4 | CYRC | COUNTY RECYCLING SERVICES INC | | | SCAC3 |
| 5 | CYRI | CABCOM Y R 2009 INC | | | SCAC4 |
| 6 | CYRIDE | CyRide | | USA | TRAFFIC |
| 7 | CYRJ | CHERRY RIDGE JUICE LLC | | | SCAC4 |
| 8 | CYRK | CANYON ROCK CO INC | | | SCAC3 |
| 9 | CYRL | CHERRY, R & L TRUCKING | | | SCAC3 |
| 10 | CYRL | CHERRY, R & L TRUCKING INC | | | SCAC4 |
| 11 | CYRM | CONROY, REDMOND L | | | SCAC4 |
| 12 | CYRN | CYRUS TRUCKING | | | SCAC4 |
| 13 | CYRO | CODY TRUCKING CO | | | SCAC3 |
| 14 | CYRO | CYRUS MANUFACTURING INC | | | SCAC4 |
| 15 | CYRT | CYR TRUCK LINE | | | SCAC3 |
| 16 | CYRT | CYR TRUCK LINE | | | SCAC4 |
| 17 | CYRV | CLYDE RIVER TRANSPORT | | | SCAC3 |
