| NEWDOCK 1717126 · TMA948471 · design | ST. JOHN'S DOCKYARD LIMITED | 37 Construction40 Treatment | Registered | 2016 |
| NUDECK 1693290 · TMA978287 | UGL Brands, Inc. | 2 Paints | Registered | 2017 |
| NYDIG 2191118 · TMA1218694 · design | New York Digital Investment Group LLC | 36 Finance42 Science | Registered | 2024 |
| NYDIG 2189242 · TMA1218641 | New York Digital Investment Group LLC | 36 Finance42 Science | Registered | 2024 |
| NDECC 2127683 · TMA1126479 | National Dental Examining Board of Canada | 41 Education44 Medical | Registered | 2022 |
| NTOC 1893649 · TMA1098750 · design | Nitrogen Technologies of Canada Ltd. | 6 Metal12 Vehicles37 Construction+3 | Registered | 2021 |
| NTOC 1893645 · TMA1098751 | Nitrogen Technologies of Canada Ltd. | 6 Metal12 Vehicles37 Construction+3 | Registered | 2021 |
| NYDJ 1756223 · TMA1031962 | NYDJ Apparel, LLC | 3 Cosmetics9 Electronics14 Jewellery+2 | Registered | 2019 |
| 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 |
| NDC 1416036 · TMA760419 | Panorama Security Ltd. | 9 Electronics | Registered | 2010 |
| NYDEX 1411619 · TMA833925 | an individual | 23 Yarns24 Textiles | Registered | 2012 |
| NYDJ 1392171 · TMA768340 | NYDJ Apparel, LLC | 25 Clothing | Registered | 2010 |
| NIDEK 1388580 · TMA753485 · design | NIDEK CO., LTD. | 5 Pharmaceuticals7 Machines9 Electronics+2 | Registered | 2009 |
| NEDCO 1225624 · TMA667259 · design | Rexel Canada Electrical Inc./Rexel Canada Electrique Inc. | 6 Metal9 Electronics11 Lighting+2 | Registered | 2006 |
| NDK 1131369 · TMA621844 · design | KEEPER CO. LTD. | 7 Machines9 Electronics11 Lighting+3 | Registered | 2004 |
| NADCA 1021999 · TMA546945 | National Air Duct Cleaners Association | 16 Paper35 Advertising | Registered | 2001 |
| NADCO 0990808 · NFLD808 · design | NORTH AMERICAN DYE CORPORATION (A DELAWARE CORPORATION) | 2 Paints | Registered | 1919 |
| NEDOX 0813334 · TMA477769 | GENERAL MAGNAPLATE CORPORATION | 40 Treatment | Registered | 1997 |
| NYDEX 0663004 · TMA402563 | VAS-CATH INCORPORATED | 10 Medical | Registered | 1992 |
| NIDEC 0534170 · TMA314572 · design | Nidec Corporation | 7 Machines9 Electronics12 Vehicles | Registered | 1986 |
| NEDCO 0354102 · TMA193939 | Rexel Canada Electrical Inc./Rexel Canada Electrique Inc. | 6 Metal9 Electronics11 Lighting+4 | Registered | 1973 |
| NADCO 2354206 | Marindustriel inc. | 35 Advertising36 Finance37 Construction+1 | Pending | 2024 |
| NADXC 2330014 | Owner not listed | 1 Chemicals5 Pharmaceuticals | Pending | 2024 |
| NODOS 2311685 · design | an individual | 9 Electronics | Pending | 2023 |