| 1 | CMX | Compania Mexicana de Taxis Aereos, S.A. | Callsign: Mextaxis, | MEX | AVCODES |
| 2 | CMX | El Caminante Taxi Aereo, S.A. de C.V. | Callsign: El Caminnate, | MEX | AVCODES |
| 3 | CMX | El Caminante Taxi Aereo | | | ICAO1 |
| 4 | CMX | Carnation Co. | 7/1935 | | NAKINA |
| 5 | CMX | Chromium Mining and Smelting Corp. Ltd. | 1/1952-10/1966; eliminated 1/1968 | | NAKINA |
| 6 | CMX | Chromium Mining and Smelting Corp. Ltd. | 1/52-10/66; eliminated 1/68 | | NRHS |
| 7 | CMX | CHROMIUM MINING & SMELTING GROUP LTD. | | | PWRC |
| 8 | CMXA | CALDERA, A MAX | | | SCAC3 |
| 9 | CMXD | CMN EXPRESS INC | | | SCAC4 |
| 10 | CMXE | COMET EXPRESS INC | | | SCAC3 |
| 11 | CMXE | CLEMEX TECHNOLOGIES INC | | | SCAC4 |
| 12 | CMXF | C M | | | SCAC4 |
| 13 | CMXG | C & M EXPRESS LOGISTICS INC | | | SCAC4 |
| 14 | CMXH | CMHX INC | | | SCAC4 |
| 15 | CMXI | C & M EXPRESS INC | | | SCAC3 |
| 16 | CMXI | COMPANIA MEXICANA DE TRASLADO DE VA | | | SCAC4 |
| 17 | CMXJ | CMT TRANSPORT LLC | | | SCAC4 |
| 18 | CMXM | CMX MOTOR XPRESS INC | | | SCAC4 |
| 19 | CMXN | COMPANIA MEXICO LINDO S A DE C | | | SCAC4 |
| 20 | CMXP | CONSOLIDATED MOTOR EXPRESS, INC | | | SCAC3 |
| 21 | CMXP | CANAM TRANSPORTS | | | SCAC4 |
| 22 | CMXR | CAMAEX TRANSPORTATION CORPORATION | | | SCAC3 |
| 23 | CMXR | CEMEX TRANSPORTE SA DE CV | | | SCAC4 |
| 24 | CMXT | CAMEX TRANSPORTATION CO | | | SCAC3 |
| 25 | CMXT | CEMEX TRADING LLC | | | SCAC4 |
| 26 | CMXV | CLEAN MEX SA DE CV | | | SCAC4 |
| 27 | CMXW | CAMEO TRANSPORTATION & LOGISTICS IN | | | SCAC4 |
| 28 | CMXX | CHROMIUM MINING AND SMELTING CORP | | | SCAC3 |
