| Mercado Libre Argentina | |
| MercoDigital | Buenos Aires |
| Mesi, S.R.L. | Buenos Aires |
| Metacreativa | Buenos Aires |
| Metrotel | Buenos Aires |
| Michael Page | Buenos Aires |
| Micro Electrónica | Buenos Aires |
| Microbyte S.A. | Buenos Aires |
| Microcom Argentina S.A.. | Buenos Aires |
| MicroGestion | Buenos Aires |
| Microglobal Argentina, S.A. | Buenos Aires |
| Micronic Computacion | Buenos Aires |
| Microsap | Buenos Aires |
| Microsistemas | Buenos Aires |
| Microsoft Argentina | Buenos Aires |
| Microtec | Buenos Aires |
| Milenium Web Solutions | Rio Negro |
| MindWare | Buenos Aires |
| Minet Artes Gráficas / Informática | Mendoza |
| Ministerio de Ciencia, Tecnología e Innovación | Buenos Aires |
| MIROL | Buenos Aires |
| Mistyc | Buenos Aires |
| MKE | Buenos Aires |
| MKT Negocios | Buenos Aires |
| Mobile Computing | |
| Mobilenik | Buenos Aires |
| Moni Online, S.A.S. | |
| MovApps | Buenos Aires |
| Movistar Argentina | Buenos Aires |
| MOX IT S.R.L. | Buenos Aires |
| Mozzoo | Buenos Aires |
| Multicam | Buenos Aires |
| Multimedia Wizard | Santa Fe |
| Multiradio S.A. | Buenos Aires |
| Multisoft Argentina S.A. | Buenos Aires |
| Mundo IT | Santa Fe |
| MuniDigital | Córdoba |
| Music Hub | Buenos Aires |
| Mvalls.com.ar | Buenos Aires |
| My Way | Buenos Aires |
| MyDesign | Buenos Aires |
| Naga, National Analogic Group Argentina | Buenos Aires |
| NaNLABS | Buenos Aires |
| Nanomedia | Buenos Aires |
| Nanox Release | |
| Nasif Salum Computación | Buenos Aires |
| Natural Software | Buenos Aires |
| Nayra | |
| Neodynamic | Santa Fe |
| Neomedia | Buenos Aires |