| Morgenstjernen Mjøndalen AS | Real estate | 2021 |
| Morgenstjernen Tunet AS | Real estate | 2022 |
| Morten Haug AS | Health & social care | 2005 |
| Moshi Moshi and the Moist Boys Da | Arts & recreation | 2022 |
| Motri AS | Real estate | 2006 |
| Moxness Holding AS | | 2026 |
| Mplm Eiendom AS | Real estate | 2018 |
| MS Bygg Og Eiendom AS | Construction | 2023 |
| Multibim AS | Wholesale & retail | 2009 |
| Multimum Holding AS | | 2024 |
| Munch Design AS | Professional & scientific | 2013 |
| Munch Design Da | Professional & scientific | 2007 |
| Mur, Stein & Betong AS | Construction | 2012 |
| Murvika Invest AS | | 2020 |
| Myrica AS | Real estate | 2022 |
| Nail IT Lenning AS | Real estate | 2015 |
| Namara AS | Professional & scientific | 2017 |
| Narei Invest AS | Real estate | 2017 |
| Nebba Invest AS | Financial services | 2009 |
| Nestor Capital AS | Real estate | 2005 |
| Next Inspiration AS | | 2021 |
| Nok Snakk AS | Professional & scientific | 2005 |
| Nordic Investments AS | Real estate | 2020 |
| Norske Smaa Hus AS | Real estate | 2022 |
| NSK 8 Consulting AS | Professional & scientific | 2018 |
| Nuvolo Invest AS | | 2005 |
| Nyborg Gård Ans | Agriculture & fishing | 1999 |
| Oa Haugen Utvikling AS | Real estate | 2021 |
| Office Anywhere AS | Wholesale & retail | 2020 |
| Oksehovedveien Invest AS | Financial services | 2018 |
| Oslo Kjøkkenstudio AS | Professional & scientific | 2019 |
| Otto Bloch Eiendom AS | Real estate | 1989 |
| P Foss Invest AS | Real estate | 2005 |
| P. H Polish Construction and Redecoration Services | Construction | 2005 |
| Pagurus AS | Financial services | 2005 |
| Paleonor AS | Professional & scientific | 2005 |
| Pavane AS | | 2025 |
| Paxnor Pharma AS | Wholesale & retail | 2016 |
| Per Smith-Meyer Holding AS | Financial services | 2012 |
| Petlund Professionals AS | | 2022 |
| Petninja Holding AS | Wholesale & retail | 2020 |
| Piggy Bænk AS | Real estate | 2005 |
| Pingo AS | Arts & recreation | 2005 |
| Plantefabrikken AS | Professional & scientific | 2018 |
| Poggi Group AS | Wholesale & retail | 2026 |
| Preg Eiendom AS | Real estate | 2022 |
| Preg Holding AS | Real estate | 2022 |
| Preg Skilt Og Design AS | Professional & scientific | 1995 |
| Project Design AS | Real estate | 1980 |
| Prosjekt Åpenhet AS | | 2022 |
| R.A. Invest AS | Real estate | 2008 |
| Ragnar Rabe AS | Health & social care | 2005 |
| Rakar Montasje AS | Construction | 2024 |
| Rambera Invest AS | Financial services | 2017 |
| Regionplankontoret AS | Professional & scientific | 2012 |
| Respikes AS | Information & communication | 2022 |
| Respikes Invest AS | Professional & scientific | 2019 |
| Ressurssenter AS | Health & social care | 2025 |
| Resultatforbedring Limited Nuf | Professional & scientific | 2007 |
| Rgse Invest AS | | 2022 |
| Rhar Invest AS | | 2023 |
| Rike Capital AS | | 2020 |
| Rike Eiendom AS | Real estate | 1969 |
| RIKE1 AS | Real estate | 2025 |
| Ringnor AS | Wholesale & retail | 2017 |
| RS Holdco AS | Manufacturing | 2024 |
| RSH AS | Professional & scientific | 2020 |
| Run Tech Investment AS | | 2017 |
| S W Invest AS | Financial services | 2014 |
| Saltwater Invest Limited Nuf | Professional & scientific | 2006 |
| Samo Holding AS | | 2022 |
| Satirius Ltd Nuf | Information & communication | 2015 |
| Sbas AS | | 2020 |
| Scandex Invest Ans | Real estate | 1990 |
| Seba AS | Transport & logistics | 2019 |
| Senter for Brystrekonstruksjon AS | Health & social care | 2010 |
| Sisilie Berg Holding AS | Real estate | 2020 |
| Sisu Capital AS | Professional & scientific | 2023 |
| Sisu Capital Holding AS | Professional & scientific | 2023 |
| Sjøwall & Myhrvold AS | Professional & scientific | 2000 |
| Skardåsen AS | Real estate | 2006 |
| Skylvik Kontny Invest AS | | 2011 |
| Smartere Pensjon Og Sparing AS | | 2012 |
| Somahe Invest AS | | 2025 |
| Sora AS | Professional & scientific | 2013 |
| Spire Materialteknologi AS | Professional & scientific | 2026 |
| Stabekk Boliginvest AS | | 2007 |
| Stein Gulset AS | Construction | 1995 |
| Steinramla Utvikling AS | Real estate | 2012 |
| Story Invest AS | | 2023 |
| Strix Holding AS | Real estate | 2005 |
| Strong AS | Real estate | 2006 |
| Sult Sjøholmen AS | Hospitality | 2013 |
| Sunflower AS | Wholesale & retail | 2014 |
| Synapse Management Consulting AS | Professional & scientific | 1986 |
| Sørheims Prosjektservice AS | Professional & scientific | 2002 |
| T10INVEST AS | | 2021 |
| Taeksi AS | Transport & logistics | 2025 |
| Taholding AS | Financial services | 2018 |
| Talary AS | Administrative & support | 1997 |