| 1 | WCM | World Cargo Airlines Sdn. Bhd. | IATA: 3G, Callsign: World Cargo, IATA Prefix: 380, Name changed from DRB-HICOM Asiacargo Express Sdn. Bhd. and previously from POS Asia Cargo Express Sdn. Bhd. d/b/a Asia Cargo Express and Gading Sari Aviation Services Sdn Bhd d/b/a G Sari. | MAL | AVCODES |
| 2 | WCMF | WEST CENTRAL MOTOR FREIGHT INC | | | SCAC4 |
| 3 | WCMM | WCM | | | SCAC4 |
| 4 | WCMN | WEST CENTRAL MN PETROLEUM LLC | | | SCAC4 |
| 5 | WCMR | WORLD COURIER METRO SERVICES, INC | | | SCAC1 |
| 6 | WCMX | Western Chemical Manufacturing Co. (General Chemical Co.) | 8/1920 | | NAKINA |
| 7 | WCMX | West End Chemical Co. | 1/1952 | | NAKINA |
| 8 | WCMX | Wyandotte Chemicals Corp. | added 4/1959; 4/1961; eliminated 1/1963; added 10/1963; 7/1965-4/1970; eliminated 7/1971 | | NAKINA |
| 9 | WCMX | West End Chemical Co. | Jan-52 | | NRHS |
| 10 | WCMX | Wyandotte Chemicals Corp. | 4/61-4/70 | | NRHS |
| 11 | WCMX | WYANDOTTE CHEMICALS CORP. [WEST END CHEMICAL CO.; GENERAL CHEMICAL CO.; WESTERN CHEMICAL MFG. CO.] | | | PWRC |
