| Namdalsklinikken AS | Høylandet | 2013 |
| Namsen Fysioterapi AS | Spillum | 2018 |
| Namsen Legesenter AS | Spillum | 2008 |
| Namsos Fysioterapi AS | Namsos | 2012 |
| Namsos Jernvareforretning AS | Tønsberg | 1933 |
| Namsos Tannlegesenter AS | Namsos | 2020 |
| Nanak AS | Tønsberg | 2025 |
| Nangiala AS | Oslo | 2023 |
| Nani Helse AS | Egersund | 2014 |
| Nannestad Helseklinikk AS | Nannestad | 2025 |
| Nannestad Legesenter AS | Nannestad | 2013 |
| Nanoklinikken AS | Trondheim | 2023 |
| Naprapat 1 AS | Stavanger | 2011 |
| Naprapat Andreassen AS | Lillehammer | 2023 |
| Naprapat Fredrik Akre AS | Hamar | 2023 |
| Naprapat Frøydis Akseline Solvang AS | Harstad | 2012 |
| Naprapat Gry Mostue AS | Ridabu | 2022 |
| Naprapat Gøril Hustad AS | Levanger | 2015 |
| Naprapat Hege Hansen AS | Ålesund | 2025 |
| Naprapat I Nord AS | Bodø | 2020 |
| Naprapat Karlsson AS | Stabekk | 2014 |
| Naprapat Kristin Haugland AS | Trondheim | 2022 |
| Naprapat Lindgaard AS | Skien | 2015 |
| Naprapat Mari S Rolfstad AS | Kongsberg | 2014 |
| Naprapat Maria S. Ødegård AS | Stokmarknes | 2016 |
| Naprapat Nakling AS | Tønsberg | 2017 |
| Naprapat Nina Skogseth Nuf | Mo I Rana | 2010 |
| Naprapat Nordli AS | Stjørdal | 2016 |
| Naprapat Og Helse AS | Sandefjord | 2022 |
| Naprapat Og Helse Holding AS | Sandefjord | 2022 |
| Naprapat Samuelsson AS | Evenskjer | 2026 |
| Naprapat Sør AS | Kristiansand S | 2015 |
| Naprapat Thomas Lund Johannesen AS | Skedsmokorset | 2022 |
| Naprapat-En AS | Lillehammer | 2012 |
| Naprapatdoktoren AS | Tromsø | 2015 |
| Naprapaten Melhus AS | Melhus | 2013 |
| Naprapatene AS | Hamar | 2013 |
| Naprapatene Tholfsen Og Steinsholt Da | Larvik | 2018 |
| Naprapatgruppen - Fornebu AS | Lysaker | 2021 |
| Naprapatgården AS | Bergen | 2003 |
| Naprapathuset Consult AS | Fredrikstad | 2021 |
| Naprapathuset Da | Fredrikstad | 2007 |
| Naprapati by Eide AS | Ranheim | 2022 |
| Naprapatklinikk Nord AS | Tromsø | 2017 |
| Naprapatkontoret AS | Oslo | 2012 |
| Naprapatpluss Sørlandets Idrettsklinikk AS | Kristiansand S | 2023 |
| Naprapatsenteret AS | Oslo | 2017 |
| Naprapatsenteret Førde AS | Førde | 2012 |
| Naprapatsenteret I Nord AS | Narvik | 2007 |
| Naprapatstova AS | Husnes | 2018 |
| Naprapatteamet Oslo AS | Oslo | 2017 |
| Naprapatteamet Ryen Da | Oslo | 2006 |
| Nardosletta Legesenter Da | Trondheim | 2006 |
| Narges Amiri AS | Rælingen | 2019 |
| Narten Coaching AS | Asker | 2021 |
| Narvik Akson AS | Narvik | 2023 |
| Narvik Bedriftshelsetjeneste SA | Narvik | 1982 |
| Narvik Fotklinikk AS | Narvik | 2012 |
| Narvik Helseform AS | Narvik | 2019 |
| Narvik Helseklinikk Da | Narvik | 2016 |
| Narvik Laserklinikk AS | Narvik | 2022 |
| Narvik Logopedi AS | Narvik | 2025 |
| Narvik Velværesenter Ans | Narvik | 2004 |
| Narvikkiropraktoren AS | Narvik | 2016 |
| Natalia Ivanivna AS | Arendal | 2023 |
| Natalie Hage AS | Brumunddal | 2022 |
| Natalie Hage Holding AS | Brumunddal | 2022 |
| Natalya Østrem AS | Nedenes | 2024 |
| Nathalie Simonsen Aas AS | Porsgrunn | 2020 |
| National Domestic Workers Alliance Inc. | New York Ny 10006 | 2019 |
| Nationaltheatret Tannklinikk AS | Oslo | 2026 |
| Nattland Medisinske Tjenester AS | Bergen | 2012 |
| Nature and Health AS | Heggedal | 2026 |
| Naturopaten AS | Oslo | 2025 |
| Navigasjonslab AS | Trondheim | 2025 |
| Nawrat Invest AS | Stavanger | 2025 |
| Nca Holding AS | Oslo | 2019 |
| NCS Holding AS | Nedenes | 2020 |
| Nea Akupunktur & Velvære AS | Selbu | 2022 |
| Nea Klinikk AS | Stabekk | 2025 |
| Nea Skin Clinic AS | Oslo | 2019 |
| Nebrox AS | Lørenskog | 2025 |
| Nedeneslegene AS | Nedenes | 2024 |
| Nedre Bakstevold Gård AS | Våle | 2012 |
| Nedre Glomma Øyekirurgi AS | Sarpsborg | 2020 |
| Nedre Glommen Legegruppe Da | Fredrikstad | 2003 |
| Nedre Grefsen Legegruppe Da | Oslo | 2016 |
| Nefertiti Glow AS | Alta | 2025 |
| Nelson Enterprise AS | Drøbak | 2016 |
| Nemus Arendal AS | Arendal | 2012 |
| Nemus Arna AS | Indre Arna | 2013 |
| Nemus AS | Oslo | 2019 |
| Nemus Asker Sentrum AS | Asker | 2016 |
| Nemus Bekkestua AS | Bekkestua | 2019 |
| Nemus Bergen City AS | Bergen | 2026 |
| Nemus Bislett AS | Oslo | 2024 |
| Nemus Bjørvika AS | Oslo | 2025 |
| Nemus Bryn AS | Oslo | 2008 |
| Nemus Drammen AS | Drammen | 2011 |
| Nemus Fastlandsklinikken Tromsø AS | Tomasjord | 2024 |