| 1401 | WEM | Gesellschaft zur Betreibung der Waldeisenbahn Muskau mbH | Bad Muskau | D | privat-bahn.de |
| 1402 | WEM | Waldeisenbahn Muskau e.V. | | D | TRAFFIC |
| 1403 | WEMC | WEST ESSEX MANAGEMENT CORP | | | SCAC4 |
| 1404 | WEMEG | Westmecklenburgische Eisenbahn-GmbH | Bantin | D | privat-bahn.de |
| 1405 | WEMEG | Westmecklenburgische Eisenbahngesellschaft mbH | | DE | VKM |
| 1406 | WEMG | WESTGATE MOVING COMPANY INC | | | SCAC4 |
| 1407 | WEMI | WESTERN EMULSIONS INC | | | SCAC4 |
| 1408 | WEMX | Westinghouse Electric & Manufacturing Co. | 8/1920-1/1945 | | NAKINA |
| 1409 | WEMX | Westinghouse Electric Corp. | 1/1946-1/1950 | | NAKINA |
| 1410 | WEMX | Westinghouse Electric & Manufacturing Co. | Apr-38 | | NRHS |
| 1411 | WEMX | *WESTINGHOUSE ELECTRIC CORP. | | | PWRC |
| 1412 | WEMX | +WESTERN MILLING, LLC | | | PWRC |
| 1413 | WEMX | WESTERN MILLING LLC | | | SCAC4 |
| 1414 | WEN | Westjet Encore Ltd. | IATA: WR, Callsign: Encore, Commenced operations on 24 June 2013. | CDN | AVCODES |
| 1415 | WENA | WENA TRANSPORT INC | | | SCAC4 |
| 1416 | WENB | WENBERG TRANSFER, INC | | | SCAC1 |
| 1417 | WENB | WENBERG TRANSFER | | | SCAC4 |
| 1418 | WEND | WERNER ENTERPRISES INC (DEDICATED F | | | SCAC4 |
| 1419 | WEND | Wendelsteinbahn GmbH | | D | TRAFFIC |
| 1420 | WENE | WEST ENERGY OIL TRANSPORT INC | | | SCAC4 |
| 1421 | WENF | WERNER ENTERPRISES INC (FLATBED DIV | | | SCAC4 |
| 1422 | WENG | WENGER TRUCK LINE INC | | | SCAC4 |
| 1423 | WENJ | WEIN, J T INC | | | SCAC4 |
| 1424 | WENL | WERNER ENTERPRISES INC (LOGISTICS D | | | SCAC4 |
| 1425 | WENN | WE NO NAH CANOE INC | | | SCAC4 |
| 1426 | WENP | WERNER ENTERPRISES, INC. | | | SCAC1 |
| 1427 | WENP | WERNER ENTERPRISES INC | | | SCAC4 |
| 1428 | WENR | WRIGHT ENRICHMENT INC | | | SCAC4 |
| 1429 | WENY | WASHINGTON ENTERPRISES | | | SCAC4 |
| 1430 | WEOA | WESTMORELAND, F H HAULING CONTRACTO | | | SCAC4 |
| 1431 | WEOE | WE-STORE | | | SCAC4 |
| 1432 | WEOG | WAR EAGLE LOGISTICS INC | | | SCAC4 |
| 1433 | WEOL | WELDON OIL CO INC | | | SCAC4 |
| 1434 | WEOS | WESTERN OIL COMPANY | | | SCAC4 |
| 1435 | WEOX | White Eagle Oil Corp. | 7/1930-7/1932 | | NAKINA |
| 1436 | WEOX | White Eagle Oil Corp. (Socony-Vacuum Oil Co., Inc., White Eagle Division) | 7/1935 | | NAKINA |
| 1437 | WEOX | Soncony-Vacuum Oil Co., Inc., White Eagle Division | 7/1935-4/1947 | | NAKINA |
| 1438 | WEOX | White Eagle Oil Corp. (Soncony-Vacuum Oil Co., Inc., White Eagle Division) | Apr-38 | | NRHS |
| 1439 | WEOX | SOCONY-VACUUM OIL CO., INC., WHITE EAGLE DIV. | | | PWRC |
| 1440 | WEPC | WEBBER OIL COMPANY | | | SCAC4 |
| 1441 | WEPI | WESTERN ENTERPRISES INC | | | SCAC4 |
| 1442 | WEPL | WEISS, PAUL | | | SCAC4 |
| 1443 | WEPS | WESTWARD PARTS SERVICES LTD | | | SCAC4 |
| 1444 | WEPX | White Eagle Petroleum Co. (White Eagle Oil and Refining Co.) | 8/1920 | | NAKINA |
| 1445 | WEPX | White Eagle Oil and Refining Co. | 7/1923 | | NAKINA |
| 1446 | WEPX | White Eagle Oil and Refining Co. (White Eagle Oil Corp.) | 7/1930 | | NAKINA |
| 1447 | WEPX | Wisconsin Electric Power Co. | added 4/1968; 4/1970-7/2005 | | NAKINA |
| 1448 | WEPX | Wisconsin Electric Power Co. | added 4/68; 4/70-7/2000 | | NRHS |
| 1449 | WEPX | *WHITE EAGLE OIL & REFINING CO. | | | PWRC |
| 1450 | WEPX | +WISCONSIN ELECTRIC POWER COMPANY | | | PWRC |
| 1451 | WEPX | Wisconsin Electric Power | | | RSRV |
| 1452 | WEPX | WISCONSIN ELECTRIC POWER COMPANY | | | SCAC4 |
| 1453 | WEPX | Wisconsin Electric Power Co. | | USA | TRAFFIC |
| 1454 | WEQA | WEST ATLANTIC TRANSPORTATION CORP | | | SCAC4 |
| 1455 | WEQI | WEIR TRANSPORT | | | SCAC4 |
| 1456 | WEQM | W E M LINES S A | | | SCAC4 |
| 1457 | WER | WISCONSIN ELECTRICAL RAILROAD HISTORICAL SOCIETY | | | PWRC |
| 1458 | WERB | WERSE BEREEDERUNG | | | SCAC4 |
| 1459 | WerBH | Werne-Bockum-Höveler Eisenbahn | Gladbeck | D | privat-bahn.de |
| 1460 | WERC | WEST END CONRAIL | | | PWRC |
| 1461 | WERD | WIDER CONSOLIDATED INC | | | SCAC4 |
| 1462 | WERG | Werners Gartenbahn | City: Löbau | D | TRAFFIC |
| 1463 | WERM | WERMUTH & CAHOON MOVING & STORAGE C | | | SCAC4 |
| 1464 | WERN | WERNER TRANSPORTATION INC | | | SCAC4 |
| 1465 | WERO | WALL, ERNESTO | | | SCAC4 |
| 1466 | WERT | WEBSTER TRUCKING INC | | | SCAC4 |
| 1467 | WERU | WERNER ENTERPRISES INC | | | SCAC4 |
| 1468 | WERV | WE R DRAYAGE | | | SCAC4 |
| 1469 | WERX | Western Oil Refining Co. | 7/1923 | | NAKINA |
| 1470 | WERX | Western Railroads, Inc. | 7/2005 (not listed) | | NAKINA |
| 1471 | WERX | *WESTERN OIL REFINING CO. | | | PWRC |
| 1472 | WERX | +WESTERN RAILROADS, INC. | | | PWRC |
| 1473 | WERX | Western Railroads | | | RSRV |
| 1474 | WERX | WESTERN RAILROADS INC | | | SCAC4 |
| 1475 | WERZ | WERNER ENTERPRISES, INC. | | | PWRC |
| 1476 | WERZ | Werner Enterprises | | | RSRV |
| 1477 | WERZ | WERNER ENTERPRISES | | | SCAC4 |
| 1478 | WES | Western Express Air Lines, Inc. | Callsign: West Ex, | CDN | AVCODES |
| 1479 | WES | Rainbow International Airlines, Inc. | Callsign: West Indian, | VI | AVCODES |
| 1480 | WES | Western Express Air Lines | | | ICAO1 |
| 1481 | WES | WESTERN TRANSPORTATION INC | | | SCAC4 |
| 1482 | WES | Bremen-Thedinghauser Eisenbahn GmbH (Weserbahn) | | D | TRAFFIC |
| 1483 | WESA | WESTERN AG INC | | | SCAC4 |
| 1484 | WESE | WOODARD EUBANKS & SONS LLP | | | SCAC4 |
| 1485 | WESEL | Kleinbahn Wesel-Rees-Emmerich | City: Wesel, Betreiber:Rheinisch-Westfälische Straßen- und Kleinbahnen GmbH, eröffnet 1914, stillgelegt 1966 | D | TRAFFIC |
| 1486 | WESF | WESTSIDE BROKERS | | | SCAC4 |
| 1487 | WESG | WestVerkehr Gmbh | City: Geilenkirchen | D | TRAFFIC |
| 1488 | WESH | WEST HILLS OIL CO INC | | | SCAC4 |
| 1489 | WESI | WESTON TRUCK LINES INC | | | SCAC4 |
| 1490 | WESK | WESS INC | | | SCAC4 |
| 1491 | WESM | WEST MOTOR FREIGHT OF PA | | | SCAC4 |
| 1492 | WESN | WESSON INC | | | SCAC4 |
| 1493 | WESO | WESTERN OIL INC | | | SCAC4 |
| 1494 | WESP | WESTERN PACIFIC LOGISTICS | | | SCAC4 |
| 1495 | WESQ | WESCAN DISPOSAL (1998) LTD | | | SCAC4 |
| 1496 | WESR | WEST EXPRESS INC | | | SCAC4 |
| 1497 | WEST | WEIRTON STEEL | | | PWRC |
| 1498 | WEST | WESTCO TRANSPORTATION SYSTEMS INC | | | SCAC4 |
| 1499 | WEST | Westermann GmbH & Co. KG | | DE | VKM |
| 1500 | WESTB | Westbahn GmbH | | DE | VKM |
