| M 90 Premiun 88.5 | — |
| M 90 Radio 89.9 | — |
| Made In Argentina (Fm Re 91.3) | — |
| Mañana Tarde y Noche | — |
| Mar Del Plata Fm 103.7 Radio Mitre | — |
| Mar Del Plata Fm 106.3 La100 | — |
| Mar Del Plata Fm 89.5 Radio X | — |
| Mar Del Plata Fm Compacto 97.7 | — |
| Mar Del Plata Fm Up 88,5 | — |
| Mdz Fm 105.5 | — |
| Mdz Radio 105.5 | — |
| Mega | — |
| Mega 98.9 - San Juan | — |
| Metro | — |
| Metro | — |
| Metropolis FM La Boca | — |
| Millenium | — |
| Miramar Fm 89.3 Radio Mitre | — |
| Miramar Fm 98.1 La100 | — |
| Misiones Online | — |
| Mitre | — |
| Mulitmedios Prismas La Matanza | — |
| Multicanal Magazine | — |