| MacroSeguridad | Montevideo |
| Magma Tools | Montevideo |
| MAPFRE | |
| Marvik | Montevideo |
| MateSoft | Montevideo |
| Maxprograms | Montevideo |
| Megasoft | Montevideo |
| Mercado Libre Uruguay | |
| MH Soluciones Lógicas | Montevideo |
| MiamiShop | Montevideo |
| MiComercioVirtual | Montevideo |
| Microsoft de Paraguay S.A. | Montevideo |
| Microsoft Uruguay | Montevideo |
| Middlesoft | Montevideo |
| Mobility Solutions | Montevideo |
| Molveno | Montevideo |
| Moove It | Montevideo |
| Morales Cowork | |
| Movistar Uruguay | Montevideo |
| MueveUY | |
| MUGATU Media | |
| MundoMac | Montevideo |
| MVD Hosting | Montevideo |
| MVD Technologies | Montevideo |
| Mystery Studio | Montevideo |
| Mythology Labs, S.R.L. | Montevideo |
| Naimara Software Company | Montevideo |
| Nareia Software | Montevideo |
| Narthex its | Montevideo |
| Nel Ltda | Montevideo |
| Netlabs | Montevideo |
| NETpc | Montevideo |
| Netson | Montevideo |
| Network Team | Montevideo |
| Networking | Montevideo |
| New Age Data | Montevideo |
| Nexa | Montevideo |
| Nexo IT | Montevideo |
| Nibiru Páginas Web Montevideo | |
| nocnoc Group, LLC | |
| Nodum | Montevideo |
| Nook Cowork | |
| Noventaynueve | Montevideo |
| Numina | Montevideo |
| Objetos.com.uy | Montevideo |
| OneTree | Montevideo |
| OPUS Software Uruguay | Montevideo |
| Oxus Media | Montevideo |
| Páginas Web Uruguay | Montevideo |
| Pandemia Hosting | Montevideo |