| 1 | MCY | Ambulance Air Africa | Callsign: Mercy, | ZA | AVCODES |
| 2 | MCY | Ambulance Air Africa | | | ICAO1 |
| 3 | MCY | Motley County Ry. Co. | 7/1923 | | NAKINA |
| 4 | MCY | MOTLEY COUNTY RWY. CO. | | | PWRC |
| 5 | MCYA | MCCLATCHY BROS INC | | | SCAC4 |
| 6 | MCYB | MCCLEARY DISTRIBUTING INC | | | SCAC4 |
| 7 | MCYC | MCCARTY & SONS TOWING & EQUIPMENT T | | | SCAC4 |
| 8 | MCYD | MID COUNTY COOP | | | SCAC4 |
| 9 | MCYG | MOTTAS COUNTRY GARDENS INC | | | SCAC4 |
| 10 | MCYH | MCCOY & SON TRUCKING INC | | | SCAC4 |
| 11 | MCYI | MCCOY TRANSPORT INC | | | SCAC4 |
| 12 | MCYL | MCCULLEY OIL CO INC | | | SCAC4 |
| 13 | MCYN | MOTOR CITY AUTO TRANSPORT INC | | | SCAC4 |
| 14 | MCYO | MCCLYMOND | | | SCAC4 |
| 15 | MCYT | MCCARTHY TRANSFER AND STORAGE | | | SCAC4 |
| 16 | MCYV | MERCURY SERVICES INCORPORATED | | | SCAC4 |
| 17 | MCYY | MARCEY OIL COMPANY INC | | | SCAC4 |
