| Norskjell AS | Huglo | 1996 |
| Norsol Kystfiske AS | Andenes | 2014 |
| Norteak AS | Oslo | 2007 |
| North Atlantic Cod Company AS | Flatanger | 2021 |
| North Cape Kelp & Seaweed AS | Honningsvåg | 2026 |
| North Cape King Crab AS | Repvåg | 1993 |
| North Equity AS | Ålesund | 2023 |
| North Sea Lobster AS | Tananger | 2025 |
| North Sea Shells AS | Lyngdal | 2020 |
| North-West Holding AS | Tjørvåg | 2003 |
| Northcape Offshore AS | Lakselv | 2013 |
| Northern Crew Consulting AS | Hasvik | 2017 |
| Northern Fishing AS | Kjøllefjord | 2022 |
| Northern Light Maritime AS | Ålesund | 2020 |
| Northern Lights Holding AS | Grovfjord | 2013 |
| Northern Lights Panorama AS | Leknes | 2024 |
| Northern Lights Salmon AS | Grovfjord | 2013 |
| Northlight Fishing AS | Lakselv | 2023 |
| Northug Markhus Samdrift Ans | Mosvik | 1996 |
| Nortuna AS | Stavanger | 2016 |
| Nortuna Holding AS | Stavanger | 2011 |
| Nortømmer Skogservice AS | Flisa | 2023 |
| Noruega AS | Kristiansand S | 2018 |
| Norum Da | Dilling | 2004 |
| Norvacc | 66-446 Osiedle Poznanskie | 2011 |
| Norvara AS | Talvik | 2026 |
| Norvega AS | Oslo | 2007 |
| Norway Catch AS | Kirkenes | 2017 |
| Norway Fresh Production AS | Oslo | 2007 |
| Norway King Crab Production AS | Bugøynes | 2007 |
| Norway King Crab Trollbukt AS | Lebesby | 2015 |
| Norway Offshore Aquaculture AS | Trondheim | 2025 |
| Norway Offshore Salmon AS | Trondheim | 2025 |
| Norway Oysters AS | Nøtterøy | 2024 |
| Norway Royal Cod AS | Roan | 2021 |
| Norway Salmon AS | Rørvik | 1983 |
| Norway Seaweed AS | Arendal | 2015 |
| Norway Shrimp AS | Bugøynes | 1996 |
| Norwegian Cod Company AS | Sandnessjøen | 2020 |
| Norwegian Fishfarming Technologies AS | Trondheim | 2011 |
| Norwegian Forestry Group AS | Oslo | 1996 |
| Norwegian King Prawns AS | Sirevåg | 2017 |
| Norwegian King Prawns Farming AS | Sirevåg | 2023 |
| Norwegian King Prawns Hatchery AS | Sirevåg | 2023 |
| Norwegian Lobster Farm AS | Finnøy | 1999 |
| Norwegian Oysters Da | Rubbestadneset | 2001 |
| Norwegian Racehorse Breeding AS | Skreia | 2018 |
| Norwegian Sea Truffle Da | Kjerstad | 2018 |
| Norwegian Seafarming AS | Hundvåg | 2020 |
| Norwegian Seafarming Egersund AS | Hundvåg | 2021 |
| Norwegian Seaweed Group AS | Fjell | 2026 |
| Norwegian Snow Crab AS | Storebø | 2018 |
| Norwegian Timber AS | Haugesund | 2024 |
| Norzania AS | Oslo | 2020 |
| Nosa Ans | Kleive | 1988 |
| Nosi AS | Ottestad | 1995 |
| Nossum Samdrift Da | Inderøy | 2000 |
| Nostsoft AS | Svelvik | 2001 |
| Notbas AS | Finnås | 2014 |
| Notimport AS | Oslo | 2023 |
| Nova Master AS | Lovund | 2019 |
| Nova Sea Aquaservice AS | Lovund | 2014 |
| Nova Sea AS | Lovund | 1991 |
| Nova Sea Brands AS | Lovund | 2026 |
| Nova Sea Havbruk AS | Lovund | 2021 |
| Nowi AS | Rørvik | 2023 |
| NPG AS | Eiksmarka | 2019 |
| NTK Invest AS | Fosnavåg | 2015 |
| Nubberud Og Grasvik Samdrift Da | Prestfoss | 2005 |
| Nubberud Skogsdrift AS | Prestfoss | 2014 |
| Nuf Mezsaimnieks JS | Lv-3457 Dienvidkurzeme District | 2022 |
| Nume AS | Nore | 2018 |
| Numedal Skogsdrift AS | Nore | 2021 |
| Nutrimar Holding AS | Trondheim | 2006 |
| Ny Skog AS | Skien | 2022 |
| Ny-Viking AS | Smøla | 2002 |
| Nybakk AS | Rognan | 2012 |
| Nybakken Samdrift Da | Tjøtta | 2012 |
| Nybo Holding AS | Midsund | 2017 |
| Nybonia AS | Midsund | 2016 |
| Nybonia Hav AS | Midsund | 2017 |
| Nybonia Kyst AS | Midsund | 2005 |
| Nyborg Gård Ans | Blommenholm | 1999 |
| Nyborg Gård Og Skog V/Ingunn Risberg Syversen Og Kristin Flaatten Risberg Da | Oslo | 1957 |
| Nyborg Leiekjøring AS | Østre Gausdal | 2023 |
| Nybrott Kystfisk AS | Averøy | 2012 |
| Nybrygga AS | Bud | 2016 |
| Nybråten Skogdrift Da | Austmarka | 2003 |
| Nybø Maskindrift Da | Lærdal | 2011 |
| Nybø Samdrift Ans | Norheimsund | 1998 |
| Nybøe Trål Og Marine AS | Veavågen | 2014 |
| Nye Aumlia Beite- Og Sankelag SA | Tynset | 1975 |
| Nye Bertinussen AS | Myre | 2026 |
| Nye Fjotland Pels AS | Kvinesdal | 2010 |
| Nye Fyrholm AS | Finnås | 2022 |
| Nye Giske Havfiske AS | Giske | 2017 |
| Nye Grimsholm Holding AS | Tromsø | 2023 |
| Nye Leithe AS | Sirevåg | 2013 |
| Nye Lilleng Gård AS | Gressvik | 2008 |
| Nye Lundbakk Holding AS | Bodø | 2015 |