| Northern Green Hydro AS | Hønefoss | 2022 |
| Northern Industries B Holding AS | Nærsnes | 2005 |
| Northern Lights AS | Kragerø | 2013 |
| Northern Lights Web AS | Horten | 2023 |
| Northern Project Records Ans | Hønefoss | 2021 |
| Northern Star Media Services AS | Rong | 2013 |
| Northern.Tech AS | Oslo | 2008 |
| Northern.Tech Holding AS | Drammen | 2014 |
| Northfarm Holding & Consulting AS | Oslo | 2018 |
| Northflow Technologies AS | Stavanger | 2025 |
| Northfoxx AS | Rasta | 2023 |
| Northgrc AS | Oslo | 2014 |
| Northgrove AS | Førde | 2026 |
| Northguard Norge AS | Oslo | 2022 |
| Northlight Partners AS | Vormsund | 2013 |
| Northline Music Company AS | Svinndal | 2007 |
| Northmann AS | Fjell | 2024 |
| Northmann Invest AS | Fjell | 2024 |
| Northmedia AS | Tolvsrød | 2013 |
| Northmill Flo AB Nuf | 10359 Stockholm | 2018 |
| Northowl Education Da | Porsgrunn | 2023 |
| Northpoint AS | Lørenskog | 2024 |
| Northsea IT AS | Bergen | 2005 |
| Northsoft AS | Lørenskog | 2022 |
| Northspace AS | Steinkjer | 2026 |
| Northstar - Impact Analytics AS | Oslo | 2022 |
| Northstep AS | Nesttun | 2012 |
| Northtec GmbH & Co KG | De-24980 Shafflund | 2019 |
| Northtech AS | Oslo | 2017 |
| Northtrace AS | Heimdal | 2026 |
| Northwall AS | Sandefjord | 2021 |
| Northwestwood AS | Stongfjorden | 2015 |
| Nortiq Lab AS | Hamar | 2026 |
| Nortonlifelock Norway AS | Oslo | 2012 |
| Noruga AS | Oslo | 2018 |
| Norvalid AS | Kvaløya | 2023 |
| Norvern AS | Elverum | 2025 |
| Norvestor SPV I Holding AS | Oslo | 2019 |
| Norvic AS | Fetsund | 2023 |
| Norvic Holding AS | Fetsund | 2023 |
| Norvix AS | Søgne | 2026 |
| Norvoice AS | Oslo | 1994 |
| Norwai AS | Oslo | 2018 |
| Norwai Holding AS | Oslo | 2024 |
| Norwanda Technology AS | Nyborg | 2020 |
| Norwaves Networks AS | Oslo | 2023 |
| Norwaves Systems AS | Lierskogen | 2026 |
| Norway Calls Ans | Randaberg | 2019 |
| Norway Communicates AS | Oslo | 2020 |
| Norway Consulting AS | Oslo | 2016 |
| Norway Does Productions AS | Jar | 2018 |
| Norway Holding AS | Nyborg | 2010 |
| Norway Live AS | Oslo | 2015 |
| Norway Management AS | Skien | 2019 |
| Norway Naturefilm AS | Bøstad | 2016 |
| Norway Registers Development AS | Sandvika | 2002 |
| Norwaycraft Group AS | Tolvsrød | 2022 |
| Norweb AS | Hamar | 2026 |
| Norwegian AI Solutions AS | Gamle Fredrikstad | 2016 |
| Norwegian AI Technology AS | Oslo | 2018 |
| Norwegian Backend Systems AS | Fornebu | 2026 |
| Norwegian Block Exchange AS | Lysaker | 2018 |
| Norwegian Blue AS | Trondheim | 2014 |
| Norwegian Centre of Maritime Communication AS | Hareid | 2008 |
| Norwegian Communication AS | Oslo | 2024 |
| Norwegian Data Resource Management AS | Kongshavn | 2018 |
| Norwegian Developers Co AS | Oslo | 2004 |
| Norwegian Digital AS | Stabekk | 2013 |
| Norwegian Edtech Design AS | Fornebu | 2017 |
| Norwegian Entertainment Abroad AS | Rena | 2026 |
| Norwegian HPC AS | Ålesund | 2021 |
| Norwegian Media Ventures AS | Nøtterøy | 2010 |
| Norwegian Reward AS | Lysaker | 2008 |
| Norwegian Standard | Oslo | 2014 |
| Norwegian Techno Holding AS | Oslo | 1983 |
| Norwegian Telecom AS | Nannestad | 2017 |
| Norwegian Toolbox AS | Oslo | 2005 |
| Norwegian Trustee Service on Behalf of Dominiok Da | Porsgrunn | 2018 |
| Norweka AS | Mysen | 2024 |
| Norweka Group AS | Mysen | 2023 |
| Norøst Da | Oslo | 2018 |
| Nose Tech AS | Oslo | 2026 |
| Nostalgic Records AS | Lillestrøm | 2026 |
| Nosy AS | Oslo | 2021 |
| Not a Number AS | Drammen | 2015 |
| Not Yet Human AS | Oslo | 2024 |
| Notack Ans | Bergen | 2014 |
| Notch AS | Oslo | 2012 |
| Note Forlag AS | Oslo | 2025 |
| Noteless AS | Oslo | 2023 |
| Notemedi AS | Storslett | 2026 |
| Notera AS | Oslo | 2026 |
| Nothing Hill DC AS | Oslo | 2024 |
| Nothingness AS | Kristiansand S | 2023 |
| Noticeit AS | Høvik | 2019 |
| Notiva AS | Trondheim | 2025 |
| Notodden Bredbånd AS | Notodden | 2001 |
| Nottern AS | Slependen | 2018 |
| Notyfile AS | Oslo | 2024 |
| Nouit AS | Kaupanger | 2023 |