| MITAS, s.r.o. | Bratislava |
| Mivasoft, spol. s r.o. | Nitra |
| MK - soft, s.r.o. | Prešov |
| mobilNET, s.r.o. | |
| Mobilonline, s.r.o. | Banská Bystrica |
| Mobilyze | |
| Mogdesign, s.r.o. | Nitra |
| MojAndroid.sk | Bratislava |
| Môjhosting | Bratislava |
| Moneyhoon, s.r.o. | |
| Monumental, s.r.o. | Bratislava |
| MP3.sk | Banská Bystrica |
| Mr. Design | |
| MrCode.NET | Nitra |
| MRK s.r.o. | Trenčín |
| MSM Group, s.r.o. | |
| Myage | Nitra |
| MyCarTracks | Nitra |
| MyCarTracks | |
| nanoTECH, s.r.o. | |
| Národná banka Slovenska | Bratislava |
| NAVICAR | Nitra |
| Nazaret, s.r.o. | Banská Bystrica |
| Neobyte | Trnava |
| Netfinancie.sk | |
| NETGATE Technologies, s.r.o. | Trenčín |
| Nethemba | |
| Netlab International, a.s. | |
| Netland, s.r.o. | Prešov |
| Netronics, s.r.o. | |
| Netropolis | Bratislava |
| Neulogy Ventures | |
| Nevernet | |
| Nexin Technology, s.r.o. | Bratislava |
| Nextech | Bratislava |
| Nextis.cz | |
| NIC Hosting, s.r.o. | Bratislava |
| Nice Visions | |
| NIKITA.sk | Nitra |
| Nitroterra Technology j.s.a. | |
| Nitroterra Technology j.s.a. | |
| NOVITECH, a.s. | Košice |
| NRSYS, s.r.o. | |
| NTE, s.r.o. | Košice |
| NUSTEP, s.r.o. | |
| O2 Slovakia, s.r.o. | Bratislava |
| Octopus online, s.r.o. | |
| Office for Personal Data Protection of the Slovak Republic | Bratislava |
| OnOffline | Bratislava |
| Opal Multimedia, spol. s r.o. | |