| 1 | YW | Air Nostrum L.A.M.S.A. | ICAO: ANS, Callsign: Nostru Air, ICAO designator changed to ANE. Founded on 23 May 1994. | E | AVCODES |
| 2 | YW | Air Nostrum Lineas Aereas del Mediterraneo, S.A. | ICAO: ANE, Callsign: Nostru Air, ICAO designator changed from ANS | E | AVCODES |
| 3 | YW | Yreka Western R.R. Co. | 1/1975-7/2000; eliminated 7/2002; 7/2005 | | NAKINA |
| 4 | YW | Yreka Western R.R. Co. | 1/75-7/2000 | | NRHS |
| 5 | YW | YREKA WESTERN RAILROAD CO. | | | PWRC |
| 6 | YW | Yreka Western Railroad | | | RSRV |
| 7 | YW | Yreka Western R.R. Co. | | USA | TRAFFIC |
| 8 | YWAY | YOUR WAY FREIGHT AND DELIVERY SERVI | | | SCAC4 |
| 9 | YWBM | YANKOCY WHOLESALE BUILDING MATERIAL | | | SCAC4 |
| 10 | YWCO | YODOCK WALL COMPANY INC | | | SCAC4 |
| 11 | YWDC | YUSEN LOGISTICS (AMERICAS) INC (CAR | | | SCAC4 |
| 12 | YWIC | YARNALL WAREHOUSE INC | | | SCAC4 |
| 13 | YWLG | YOWELL LOGISTICS | | | SCAC4 |
| 14 | YWOM | YOUR WAY OR MY WAY TRANSPORT | | | SCAC4 |
| 15 | YWTN | YOURWAY TRANSPORT INC | | | SCAC4 |
| 16 | YWTS | YOUR WAY TRAVEL SERVICES | | | SCAC4 |
