| Nivel IV Servicios Informáticos Gallegos, S.L. | Pontevedra |
| Nivelz | |
| Nivoria Solutions, S.L. | Barcelona |
| NMI Electronics, S.L. | Barcelona |
| NO2 Web and Mobile Applications, S.L. | |
| Noaris | Madrid |
| Nodens | La Rioja |
| Nommac Proyectos, S.L. | Madrid |
| NonStop Desarrollo de Software, S.L. | |
| NoraiStudio | Balearic Islands |
| Noray | Las Palmas |
| Noray Bioinformatics, S.L.U. | Biscay |
| North of the Web, S.L. | Málaga |
| Nostoc Biotech | Almería |
| Nosunelanube.com | |
| Notarnet, S.L. | Murcia |
| Notoy | Barcelona |
| Noucor | |
| Noumedia | Girona |
| Nova Internet, S.L | Madrid |
| Novagecko, S.L.U. | |
| Novameat | Barcelona |
| Novanotio | |
| Novatierra | Madrid |
| Novicap | Barcelona |
| Novicap | |
| Novicell ES Business Online, S.L. | |
| Novobrief | Madrid |
| Novochip | A Coruña |
| Novored | Cantabria |
| NOWALIA | |
| Nowords | |
| Nowture | Madrid |
| Noysi | Madrid |
| NP-sys, S.L. | Madrid |
| Nroot Madrid, S.L. | Madrid |
| NTECHCON | Madrid |
| Nu Kraken | |
| Nuage Therapeutics | |
| Nuau Studio | |
| Nubeser Soluciones | |
| Nubit Consulting, S.L. | Madrid |
| Nucleoo | |
| Nuclia | Barcelona |
| Nuclio Digital Business | |
| Nuclio Digital School | Barcelona |
| Nudistes del Món Digital, S.C.P. | Barcelona |
| Nuevas Tecnologías de Canarias, S.L.U. | Las Palmas |
| Nuevas Tecnologías de Cantabria, S.L. | Cantabria |
| Nufesa Electronics | Barcelona |