| Moyra | |
| MP System Sp. z o.o. | Lesser Poland |
| mpanek.net | Lesser Poland |
| MPL Verbum S.A. | |
| mpress.cc | |
| MRE Partners | |
| MSC | Lower Silesian |
| MSH Software | Lower Silesian |
| MSM Studio | |
| MTA Digital | |
| MTM-INFO | Subcarpathian |
| MuchMore | |
| MUG | Greater Poland |
| MUG | |
| Multi-COM Sp. z o.o. | Subcarpathian |
| Multi-PC | Świętokrzyskie |
| Multicall | Masovian |
| Multimedia Cafe | Pomeranian |
| Multimedia Communication Sp. z o.o. | Lesser Poland |
| Multisoft S.A. | |
| Multiuser | Łódź |
| MusicTech Lab Sp. z o.o. | |
| MWT Solutions S.A. | Greater Poland |
| MX Studio | |
| MyDevil | Lesser Poland |
| Myelophone | |
| Mykk S.C. | Greater Poland |
| MyLED Sp. z o.o. | |
| myPhone | |
| MyPhotoshopBrushes.com | Lower Silesian |
| myREST | |
| MySklep.pl | Lesser Poland |
| Mysza Software Sp. z o.o. | Masovian |
| N.O.C. Usługi Informatyczne | Masovian |
| N7 Mobile Sp. z o.o. | |
| N7 Space Sp. z o.o. | |
| Na Niby Studio | |
| Nahlik Soft | Lesser Poland |
| Nano Games S.A. | |
| NanoGroup S.A. | |
| Nanosci Sp. z o.o. | |
| Nanoseen Sp. z o.o. | |
| NanoVelos S.A. | |
| Nanoxo | Masovian |
| Napoleon Sp. z o.o. | |
| Narf Sp. z o.o. | |
| Narmox Sp. z o.o. | |
| Narodowy Instytut Leków | |
| NASK | Masovian |
| NaszaCena.pl | Silesian |