| nagarro 2104896 · TMA1201331 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2023 |
| NUXARO 2110179 · TMA1188434 · design | 9423-8383 Quebec Inc. | 25 Clothing | Registered | 2023 |
| NAGARE 1847974 · TMA1042162 | TERUMO KABUSHIKI KAISHA (TERUMO CORPORATION) | 10 Medical | Registered | 2019 |
| NAZARO 1427161 · TMA778492 | an individual | 14 Jewellery20 Furniture27 Carpets | Registered | 2010 |
| NIAGRO 2347608 · design | Owner not listed | 1 Chemicals29 Meat32 Beer | Pending | 2024 |
| NEXARO 2159732 | Nexaro GmbH | 7 Machines9 Electronics21 Housewares+4 | Pending | 2021 |
| NoGro 1975248 · TMA1138182 | ESSEX TOPCROP SALES LIMITED | 31 Fresh | Registered | 2022 |
| NCARE 1863835 · TMA1069527 | Image Stream Medical, Inc. a Massachusetts corporation | 9 Electronics | Registered | 2020 |
| NICRO 1788347 · TMA989125 | Navico Group Americas LLC | 11 Lighting12 Vehicles | Registered | 2018 |
| NSAR 1661377 · TMA913636 · design | Nova Scotia Association of REALTORS® | 6 Metal14 Jewellery16 Paper+8 | Registered | 2015 |
| NGR 1434318 · TMA822292 | No Gym Required Inc. | 9 Electronics16 Paper18 Leather+6 | Registered | 2012 |
| NSAR 1411825 · TMA767166 | Nova Scotia Association of REALTORS® | 6 Metal14 Jewellery16 Paper+5 | Registered | 2010 |
| NIAGARA 1344458 · TMA747996 | The Butcher Company | 3 Cosmetics | Registered | 2009 |
| NIAGARA 1298485 · TMA700625 | VENTURE MEASUREMENT COMPANY LLC | 9 Electronics | Registered | 2007 |
| NIAGARA 1212938 · TMA677549 | WATKINS MANUFACTURING CORPORATION | 11 Lighting | Registered | 2006 |
| NIAGARA 1172077 · TMA622264 · design | Owner not shown | 7 Machines | Registered | 2004 |
| NIAGARA 0881252 · TMA530125 | NIAGARA THERAPY OF CANADA LTD. | 20 Furniture | Registered | 2000 |
| NIAGARA 0820850 · TMA486044 | MERCEDES TEXTILES LTD. | 9 Electronics | Registered | 1997 |
| NIAGARA 0791670 · TMA476533 | Graymont Dolime (OH) Inc. | 19 Building | Registered | 1997 |
| NIAGARA 0736184 · TMA458292 | CABOT TECHNOLOGY CORPORATION (A DELAWARE CORPORATION) | 10 Medical | Registered | 1996 |
| NIAGARA 0209102 · UCA37303 | AE OpCo I LLC | 3 Cosmetics7 Machines28 Toys+1 | Registered | 1950 |
| NIAGARA 0160036 · TMDA57203 | an individual | 7 Machines | Registered | 1933 |
| NUKARIO 2288688 | Genzyme Corporation | 5 Pharmaceuticals | Pending | 2023 |
| NIAGARA 2083417 | NIAGARA CONSERVATION CORP. | 11 Lighting | Pending | 2021 |
| NIAGARA 2013712 · design | Niagara Bottling, LLC | 32 Beer | Pending | 2020 |