| Norwegian Drilling Company AS | Namsos | 2021 |
| Norwegian Dynamics AS | Skien | 2024 |
| Norwegian Eco Solutions Plus AS | Stabekk | 2017 |
| Norwegian Electronic Telecom Technology AS | Øvre Årdal | 2010 |
| Norwegian Energy & Petroleum Services AS | Knarrevik | 2012 |
| Norwegian Energy Consult AS | Nesttun | 2016 |
| Norwegian Energy Consultants AS | Tananger | 2014 |
| Norwegian Energy Experts AS | Oslo | 2004 |
| Norwegian Energy Service AS | Hundvåg | 2013 |
| Norwegian Exports AS | Oslo | 2009 |
| Norwegian Graphite AS | Oslo | 2012 |
| Norwegian Green Energy Solutions AS | Oslo | 2017 |
| Norwegian Green Innovation AS | Drangedal | 2020 |
| Norwegian Green Power Group AS | Oslo | 2021 |
| Norwegian Green Solutions AS | Oslo | 2021 |
| Norwegian Greentech AS | Fosnavåg | 2010 |
| Norwegian Group Management AS | Volda | 2023 |
| Norwegian Helicopter Consulting Holding AS | Nøtterøy | 2021 |
| Norwegian Hospitality Group AS | Lysaker | 2006 |
| Norwegian Hydropower AS | Bergen | 2008 |
| Norwegian Innovation Technology Group AS | Rådal | 2014 |
| Norwegian Inspection Service AS | Farsund | 2016 |
| Norwegian Inventions AS | Gursken | 2011 |
| Norwegian Invest Holding AS | Oslo | 2026 |
| Norwegian Investment AS | Stord | 2020 |
| Norwegian Knitting AS | Steinkjer | 2020 |
| Norwegian Lithauen Construction Company Da | Hamarvik | 2001 |
| Norwegian Made AS | Skien | 2016 |
| Norwegian Mineral Exploration (Nomex) AS | Oslo | 2021 |
| Norwegian Mineral Resources Da | Lysaker | 2008 |
| Norwegian Mooring AS | Stord | 2019 |
| Norwegian Mountain Salmon AS | Utsira | 2021 |
| Norwegian Mycelium AS | Oslo | 2020 |
| Norwegian Nautical Consulting Ans | Bergen | 1998 |
| Norwegian Nuclear Technology AS | Rykkinn | 2025 |
| Norwegian Ocean AS | Slependen | 2022 |
| Norwegian Offshore Technology Ans | Tjørhom | 2025 |
| Norwegian Offshore Technology AS | Randaberg | 2025 |
| Norwegian Originals AS | Duken | 2020 |
| Norwegian Payment Solutions AS | Skien | 2014 |
| Norwegian Pin-Pointers AS | Eidsvåg I Romsdal | 2025 |
| Norwegian Process Services AS | Stavanger | 2015 |
| Norwegian Product Solutions AS | Nesttun | 2022 |
| Norwegian Pure Energy AS | Hagan | 2019 |
| Norwegian Quality Services AS | Farsund | 2015 |
| Norwegian Rail Consulting AS | Oslo | 2013 |
| Norwegian Rat Nuf | Etne | 2010 |
| Norwegian Recycling Services AS | Stavanger | 2013 |
| Norwegian Renewable AS | Mo I Rana | 2008 |
| Norwegian Renewables Group AS | Oslo | 2016 |
| Norwegian Resource Ventures AS | Tønsberg | 2006 |
| Norwegian Retail AS | Oslo | 1991 |
| Norwegian Risk Consulting International AS | Oslo | 2010 |
| Norwegian Robotics AS | Oslo | 2023 |
| Norwegian Safe Building System AS | Oslo | 2009 |
| Norwegian Salvage Innovation AS | Oslo | 2013 |
| Norwegian Seafood House AS | Tertnes | 2019 |
| Norwegian Ship Design Group AS | Førde | 2025 |
| Norwegian Signature Drift AS | Tromsdalen | 2026 |
| Norwegian Snow Consulting AS | Vrådal | 2009 |
| Norwegian Sounddesign and Management AS | Tjongsfjorden | 1996 |
| Norwegian Subsea AS | Oslo | 2014 |
| Norwegian Technology AS | Stavanger | 2013 |
| Norwegian Technology Group AS | Hafrsfjord | 2007 |
| Norwegian Test & Inspection AS | Avaldsnes | 2007 |
| Norwegian Tool Company AS | Oslo | 2018 |
| Norwegian Trade Con AS | Fornebu | 1990 |
| Norwegian Trash AS | Oslo | 2019 |
| Norwegian Trout AS | Stavern | 2015 |
| Norwegian Vat Services AS | Oslo | 2014 |
| Norwegian Water Power Solutions AS | Mosjøen | 2020 |
| Norwegian Water Products AS | Oslo | 2001 |
| Norwegian Water Purification AS | Bergen | 2019 |
| Norwegian Welding Company AS | Harstad | 1990 |
| Norwegian Well AS | Lierskogen | 2010 |
| Norwegian Wood Cluster SA | Brumunddal | 2017 |
| Norwice AS | Kongsvinger | 2018 |
| Norwil AS | Sponvika | 2015 |
| Norwrap AS | Oslo | 2019 |
| Norx Ehf | Is-112 Reykjavik | 2012 |
| Norx Nordic Exchange AS | Hafrsfjord | 2024 |
| Norøkon AS | Bodø | 1986 |
| Nos Energy Solutions AS | Sandnes | 2021 |
| Nos Technology AS | Sandnes | 2018 |
| Nosleep Holding AS | Kristiansand S | 2011 |
| Nosleeptillbrooklyn AS | Kristiansand S | 2004 |
| Nosotola Invest AS | Bekkestua | 2018 |
| Nossotros AS | Langevåg | 2022 |
| Nostec AS | Hareid | 2017 |
| Nosyko AS | Oslo | 2011 |
| Nosytten NO17 AS | Haslum | 2021 |
| Not Even Labs AS | Vikebukt | 2021 |
| Not Management AS | Frekhaug | 2023 |
| Not My Holding AS | Bergen | 2025 |
| Not Today AS | Oslo | 2019 |
| Not Yet AS | Kråkerøy | 2017 |
| Notable AS | Sandnes | 2019 |
| Notavia AS | Oslo | 2016 |
| Notdal AS | Bryne | 1994 |
| Noteys AS | Bodø | 2018 |