| Mas Eiendom AS | Real estate | 2023 |
| Meijer AS | | 2026 |
| Melkebaren Flekkefjord AS | Real estate | 2022 |
| Membranteknikk AS | Wholesale & retail | 1997 |
| Midtfjellse Gårdsdrift AS | Agriculture & fishing | 2022 |
| Milligan Invest AS | Real estate | 2022 |
| Mirakas AS | Real estate | 2006 |
| MK Future AS | Financial services | 2012 |
| Modalsli Gård Da | Agriculture & fishing | 2024 |
| Modalsli Rør AS | Construction | 2019 |
| Modalsli Rør Holding AS | Construction | 2019 |
| Molti AS | Professional & scientific | 2014 |
| Momentor - Mennesker, Utvikling Og Vekst AS | Health & social care | 1989 |
| Morten Glendrange Eiendom AS | Real estate | 2006 |
| Mosti AS | | 2026 |
| Mowe Invest AS | | 2019 |
| MT Separation AS | Professional & scientific | 2015 |
| Mta AS | | 2023 |
| Multi Bygg & Vedlikehold AS | Construction | 2016 |
| Mumme AS | Construction | 2016 |
| Mwe Aksjeselskap | Information & communication | 2023 |
| Myrullmusikk Ans | Information & communication | 2011 |
| Navigare Logistics AS | Transport & logistics | 2013 |
| Navigare Norge AS | Administrative & support | 2011 |
| Nbi Invest AS | Financial services | 2017 |
| Nedrejord Kraft & Industri AS | Manufacturing | 2023 |
| Nesbakken Invest AS | Real estate | 2009 |
| Netland Holding AS | Real estate | 1994 |
| Netland Invest AS | Professional & scientific | 2017 |
| Netland Kapital AS | | 2026 |
| New Man's Land AS | Information & communication | 2007 |
| Newtown AS | Real estate | 2005 |
| NO5 Lisi AS | Wholesale & retail | 2019 |
| Noc Invest AS | Agriculture & fishing | 2016 |
| Nomeland AS | Transport & logistics | 2014 |
| Nor-Teknik Agentur AS | Wholesale & retail | 2025 |
| Norasol Sør AS | Wholesale & retail | 2020 |
| Norbroker Shipping & Trading AS | Transport & logistics | 1993 |
| Norsk Havbrukstjenester AS | Agriculture & fishing | 2019 |
| Norsk Oppdrettsservice AS | Agriculture & fishing | 2011 |
| Norsk Storkjøkken Eiendom AS | Real estate | 2005 |
| Norvitex AS | Wholesale & retail | 2025 |
| Norwegian Directional Drilling Technology AS | Professional & scientific | 2023 |
| Notareal Logistikk AS | Transport & logistics | 2025 |
| Nuland Besøksgård AS | Real estate | 2020 |
| Nuland Eiendom AS | Hospitality | 2007 |
| Nuland Holding AS | Hospitality | 2004 |
| Nulandsvika 1 AS | Real estate | 2010 |
| Nulandsvika 3-5 AS | Real estate | 2024 |
| Nummer Tretten AS | Real estate | 2005 |
| Nye Kjellesvig AS | Real estate | 1977 |
| Nye Reppens Bakeri AS | Manufacturing | 2024 |
| Ojm Holding AS | Real estate | 2016 |
| Oles Fiskebutikk AS | Wholesale & retail | 1984 |
| Olsøy Invest AS | Real estate | 2018 |
| Omar Schevik Arkitektkontor AS | Professional & scientific | 2000 |
| Opuluma Holdings AS | | 2026 |
| Opuluma Software AS | Information & communication | 2026 |
| Ove Skailand AS | Real estate | 1995 |
| P I Peersen AS | Wholesale & retail | 1999 |
| Panmed Helsesenter AS | Health & social care | 2021 |
| Parat Halvorsen AS | Manufacturing | 2004 |
| Parat P2H AS | Manufacturing | 2018 |
| Parkgården Kultur & Event AS | Administrative & support | 2026 |
| PB Distribusjon AS | Wholesale & retail | 1992 |
| Perseo 6 AS | Real estate | 2016 |
| Pettersen Holding AS | | 1986 |
| PG Andersen Holding AS | | 2024 |
| Piiin Holding AS | Manufacturing | 2024 |
| Pilar Byggrådgivning AS | Professional & scientific | 2003 |
| Pilskogane AS | Information & communication | 2023 |
| Pipe Line AS | Wholesale & retail | 2023 |
| Piri-Piri Plus AS | Hospitality | 2016 |
| Platessa AS | Agriculture & fishing | 2025 |
| Portos Flekkefjord AS | Real estate | 2008 |
| Presterud's Eftf. AS | Manufacturing | 2015 |
| Pro Flekkefjord AS | Hospitality | 2006 |
| Psykologspesialist Anne Marie Sand Bakken AS | Health & social care | 2025 |
| På Lundsen AS | Wholesale & retail | 2015 |
| R Knutsen Holding AS | | 2022 |
| R-L Invest AS | Real estate | 2016 |
| Ravna Profitt AS | | 2025 |
| Regnskap-Service Flekkefjord AS | Professional & scientific | 2003 |
| Reinertsen's Holding AS | | 2021 |
| Reklamebyrået Ide Ans | Professional & scientific | 1989 |
| Residencia AS | Real estate | 1983 |
| Ringsbye Invest AS | Real estate | 2010 |
| RK Holding AS | Professional & scientific | 2021 |
| RK Service & Entreprenør AS | Construction | 2025 |
| Rk-Consulting AS | Professional & scientific | 2025 |
| Roben Utvikling AS | | 2021 |
| Rosenbauer International AG | Manufacturing | 2008 |
| Rot AS | | 2026 |
| Rovpartner AS | Information & communication | 2015 |
| RP Profil AS | Professional & scientific | 1998 |
| RTV Eiendom AS | Real estate | 2007 |
| Rudcon AS | Professional & scientific | 2025 |
| Rudcon Eiendom AS | Real estate | 2025 |
| Rudcon Holding AS | | 2025 |
| Ruland Holding AS | Agriculture & fishing | 2018 |