| NODAX 2199528 | Danimer Scientific Holdings, LLC | 1 Chemicals | Pending | 2022 |
| NDX 1642221 · TMA893072 · design | National Dentex Labs LLC | 5 Pharmaceuticals10 Medical40 Treatment+1 | Registered | 2014 |
| NIEDAX 1668929 · TMA958783 · design | NIEDAX GmbH & Co. KG | 6 Metal9 Electronics19 Building+1 | Registered | 2016 |
| NIEDAX 1272827 · TMA682410 | NIEDAX GmbH & Co. KG | 6 Metal9 Electronics11 Lighting+1 | Registered | 2007 |
| NYDEX 1411619 · TMA833925 | an individual | 23 Yarns24 Textiles | Registered | 2012 |
| NEDOX 0813334 · TMA477769 | GENERAL MAGNAPLATE CORPORATION | 40 Treatment | Registered | 1997 |
| NYDEX 0663004 · TMA402563 | VAS-CATH INCORPORATED | 10 Medical | Registered | 1992 |
| NODEX 2329261 | Owner not listed | 7 Machines | Pending | 2024 |
| NIDAS 2241578 · design | Owner not shown | 1 Chemicals | Pending | 2023 |
| NDS 2019390 · TMA1127367 · design | National Diversified Sales, Inc. | 6 Metal11 Lighting19 Building | Registered | 2022 |
| NDS 2000802 · TMA1119087 | National Diversified Sales, Inc. | 6 Metal11 Lighting19 Building | Registered | 2022 |
| NDG 1788303 · TMA987385 · design | Owner not shown | 35 Advertising36 Finance | Registered | 2017 |
| NDK 1751889 · TMA1097054 | NDK Switzerland SA | 3 Cosmetics4 Oils9 Electronics+13 | Registered | 2021 |
| NDC 1751210 · TMA1058240 | Memorial Sloan-Kettering Cancer Center | 5 Pharmaceuticals42 Science | Registered | 2019 |
| NTAG 1698933 · TMA1044868 | an individual | 9 Electronics14 Jewellery | Registered | 2019 |
| NTX 1696280 · TMA994359 | nora systems GmbH | 17 Rubber19 Building27 Carpets | Registered | 2018 |
| NDC 1416036 · TMA760419 | Panorama Security Ltd. | 9 Electronics | Registered | 2010 |
| NTX 1381502 · TMA758730 | an individual | 9 Electronics16 Paper35 Advertising+2 | Registered | 2010 |
| NETAXS 1342742 · TMA742257 | HONEYWELL INTERNATIONAL INC. | 9 Electronics42 Science | Registered | 2009 |
| NADZAE 1332547 · TMA755675 | an individual | 5 Pharmaceuticals | Registered | 2009 |
| NDDS 1197584 · TMA674199 | NIPISSING DISTRICT DEVELOPMENTAL SCREEN INTELLECTUAL PROPERTY ASSOCIATION | 9 Electronics14 Jewellery16 Paper+11 | Registered | 2006 |
| NDK 1131369 · TMA621844 · design | KEEPER CO. LTD. | 7 Machines9 Electronics11 Lighting+3 | Registered | 2004 |
| NDS 0797140 · TMA503661 · design | Interbake Foods LLC | 30 Coffee | Registered | 1998 |
| NADX 0652500 · TMA388023 | NORTH AMERICAN DISTRIBUTOR XCHANGE INC. | 35 Advertising | Registered | 1991 |
| NUODEX 0163734 · UCA2372 | Venator Materials LLC | 1 Chemicals2 Paints3 Cosmetics+6 | Registered | 1934 |