| No 18 Kulturkafe AS | Hospitality | 2019 |
| No Cap Tailored Da | Wholesale & retail | 2022 |
| No Stress Stavanger AS | Hospitality | 2022 |
| Noble Drilling (Norway) AS | Mining & quarrying | 2000 |
| Noble Drilling Norge AS | Administrative & support | 1989 |
| Noble Integrator Operations AS | Mining & quarrying | 2018 |
| Noble Intrepid Operations AS | Mining & quarrying | 2018 |
| Noble Invincible Operations AS | Mining & quarrying | 2022 |
| Nock AS | | 2022 |
| Nodaberget Vann Og Avløp SA | Water & waste | 2019 |
| Nodinah AS | Arts & recreation | 1995 |
| Noer Eiendom AS | | 1981 |
| Nog Electro AS | Professional & scientific | 2023 |
| Nojo Media Da | Professional & scientific | 2011 |
| Nola Consulting AS | Professional & scientific | 2023 |
| Noma Holding AS | Professional & scientific | 2017 |
| Nomad AS | Wholesale & retail | 2025 |
| Nomad Entrepenad Nuf | Construction | 2020 |
| Nomsen Hgi AS | | 2023 |
| Nona Studio AS | Professional & scientific | 2021 |
| Nonmatic AS | Wholesale & retail | 2020 |
| Nonnehagen Eiendom AS | Real estate | 2002 |
| Nonnehagen Holding AS | | 2025 |
| Noodle Noodle AS | Hospitality | 2012 |
| Noon Invest AS | Financial services | 2017 |
| Noop AS | Information & communication | 2007 |
| Noor Investering AS | Hospitality | 2006 |
| Noova Energi System AS | Energy | 2017 |
| Noova Holding AS | Energy | 2020 |
| Nor Commissioning AS | Information & communication | 2023 |
| Nor Elektro Automasjon AS | Construction | 2016 |
| Nor Impact Consultants AS | Professional & scientific | 2021 |
| Nor Industri Gruppen AS | Real estate | 2016 |
| Nor Klinikken Stadionparken AS | Health & social care | 2017 |
| Nor Norwegian Academic AI Technologies AS | Information & communication | 2026 |
| Nor Solutions AS | Professional & scientific | 2016 |
| Nor Tronic AS | Wholesale & retail | 1971 |
| Nor-Drain AS | Wholesale & retail | 1992 |
| Nora Care AS | Health & social care | 2026 |
| Noran Energy Holding AS | | 2026 |
| Norbar Holding AS | Financial services | 1996 |
| Norbridge Solutions AS | Information & communication | 2018 |
| Norce Industrier AS | | 2002 |
| Norce Innovation AS | Administrative & support | 1990 |
| Norchart Invest AS | Professional & scientific | 2015 |
| Norchart Pluss AS | Professional & scientific | 2024 |
| Norclamp AS | Manufacturing | 2008 |
| Nord Matstudio AS | Hospitality | 2022 |
| Nord Rekruttering AS | Administrative & support | 2023 |
| Nord Welding & Engineering (Nwe) AS | Professional & scientific | 2019 |
| Nordaker Bunader AS | Manufacturing | 1970 |
| Nordaker Invest AS | Manufacturing | 2005 |
| Nordan Consult AS | Professional & scientific | 1992 |
| Nordan International AS | Professional & scientific | 2000 |
| Nordar AS | Construction | 2018 |
| Nordavind Interiør AS | Wholesale & retail | 2018 |
| Nordbø Eiendom AS | Real estate | 1997 |
| Nordbø Invest AS | Real estate | 1996 |
| Nordbø Vinduspuss AS | Administrative & support | 2025 |
| Nordbøgata 9A AS | Real estate | 2013 |
| Nordent Kobiela AS | Health & social care | 2009 |
| Nordheim Berntsen Holding AS | | 2026 |
| Nordic Alliance AS | | 2016 |
| Nordic Brasilia Fso L.L.C. Nuf | Administrative & support | 2024 |
| Nordic Catering & Cleaning Services AS | Hospitality | 2024 |
| Nordic Consultation AS | Professional & scientific | 2019 |
| Nordic Drone Solutions AS | Information & communication | 2026 |
| Nordic Edge AS | Professional & scientific | 2016 |
| Nordic Evergreen AS | Professional & scientific | 2021 |
| Nordic Fish Control AS | Professional & scientific | 2022 |
| Nordic Horizon AS | Professional & scientific | 2024 |
| Nordic Impact Cooperation AS | Professional & scientific | 2020 |
| Nordic Laurita L. L. C. | Transport & logistics | 2006 |
| Nordic Optima AS | Wholesale & retail | 2015 |
| Nordic Roots Stavanger AS | Wholesale & retail | 2022 |
| Nordic Takst AS | Real estate | 2025 |
| Nordic Taxisentral Stavanger AS | Transport & logistics | 2021 |
| Nordic Web AS | Information & communication | 2019 |
| Nordicbuild AS | Professional & scientific | 2021 |
| Nordicdx AS | Wholesale & retail | 2020 |
| Nordics Scents AS | Administrative & support | 2026 |
| Nordisk Studio AS | Professional & scientific | 2026 |
| Nordledvegen Vegforening Ba | Real estate | 1997 |
| Nordlux | Wholesale & retail | 2010 |
| Nordlysvegen 2 AS | Real estate | 2006 |
| Nordlysvegen AS | Real estate | 2006 |
| Nordsjø Bolig AS | Real estate | 2022 |
| Nordsjø Holding AS | Real estate | 2022 |
| Nordstjernen Eiendom AS | Real estate | 2022 |
| Nordtun Holding AS | Wholesale & retail | 2005 |
| Nordx Space AS | Wholesale & retail | 2024 |
| Norelta AS | Real estate | 1989 |
| Norestraen AS | Real estate | 2017 |
| Norestraen Industrier AS | | 1995 |
| Norfil Enterprise Ans | Wholesale & retail | 1999 |
| Norfinn AS | Wholesale & retail | 2005 |
| Norflo AS | Wholesale & retail | 2003 |
| Norfresh Vest AS | Wholesale & retail | 1993 |
| Norgesdomene AS | Information & communication | 2024 |
| Norgesgruppen Rogaland AS | Wholesale & retail | 1989 |