| Lunix, S.R.L. | Buenos Aires |
| Luz Verde | Buenos Aires |
| M200 | Buenos Aires |
| M2Arq.com | Buenos Aires |
| Macena | Córdoba |
| Macrored | Buenos Aires |
| MacroTel Comunicaciones Argentina | Buenos Aires |
| Made in Córdoba | Córdoba |
| Madison | Córdoba |
| Maer Software | Buenos Aires |
| Magic Software Argentina S.A. | Buenos Aires |
| MagnaLife, S.A. | |
| MagnetMedia | Buenos Aires |
| Magno Proyectos | Buenos Aires |
| MakeIT Consulting | Buenos Aires |
| Manas | Buenos Aires |
| Manawa Coworking | Buenos Aires |
| MAP Electronica | Buenos Aires |
| MAP RRHH | Buenos Aires |
| Maq Sistemas | Buenos Aires |
| Marcelo Liberati Sistemas | Buenos Aires |
| Mardelhosting | Buenos Aires |
| Mardet S.R.L. | Buenos Aires |
| Mariano Perezforte | Buenos Aires |
| Mark3ting | Buenos Aires |
| Marketing en la Web | Buenos Aires |
| Marquetti y Asociados | Mendoza |
| Martín Piñero | Buenos Aires |
| Martinez & Asociados | Buenos Aires |
| Masa Comunicaciones | Buenos Aires |
| MasterSoft | Buenos Aires |
| Matias Etchevarne | Buenos Aires |
| Matpec | Buenos Aires |
| Mauricio Silvester | Córdoba |
| Mc & RENOX Technologies | Buenos Aires |
| MD MKT S.A. | Buenos Aires |
| MDTec | Córdoba |
| MedCom S.A. | Buenos Aires |
| Media 5 S.r.l. | Buenos Aires |
| Media Party | Buenos Aires |
| Media Social | Buenos Aires |
| Mediabit | Buenos Aires |
| Mediaclic | Buenos Aires |
| Medic Electronica | Buenos Aires |
| MedTech | Buenos Aires |
| Meemba | Buenos Aires |
| Megevand Soft S.R.L. | Córdoba |
| Mensatel | Buenos Aires |
| Menta | Buenos Aires |
| Mepiache Agency | Buenos Aires |