| Medialøven AS | Education | 1998 |
| Melboden AS | Hospitality | 1999 |
| Mellon AS | Professional & scientific | 2005 |
| Memodo AS | Information & communication | 2023 |
| Memodo Holding AS | Information & communication | 2017 |
| Menskr AS | Information & communication | 2023 |
| Merete AS | Real estate | 2022 |
| Messetjeneste AS | Administrative & support | 1982 |
| Meturi Holding AS | Wholesale & retail | 2024 |
| Michael Brusegard AS | | 2025 |
| Miin AS | Wholesale & retail | 2001 |
| Minde Haug Invest AS | | 2025 |
| Mirse Holding AS | | 2022 |
| Molav AS | | 2024 |
| Move Forward AS | Professional & scientific | 2019 |
| Myhre Investering AS | | 2020 |
| Myrkdalen Vest AS | Real estate | 2004 |
| Mysterium AS | Information & communication | 2023 |
| Müllers AS | Professional & scientific | 2014 |
| Nagbøl Holding AS | | 2023 |
| Nautilink AS | Information & communication | 2025 |
| Navari AS | Professional & scientific | 2025 |
| Nextbigthing AS | Real estate | 2015 |
| Nextip Consulting Ans | Administrative & support | 1999 |
| Nibeni Holding AS | | 2020 |
| Ninja Holding AS | | 2022 |
| Ninoru AS | | 2024 |
| Nordigo Consulting AS | Professional & scientific | 2025 |
| Nordisk Sikkerhet AS | Professional & scientific | 2014 |
| Norevo Systems AS | Information & communication | 2026 |
| Norwegian Business Pavilions AS | Administrative & support | 2008 |
| Novadent AS | Health & social care | 2020 |
| O-E Sandås AS | Real estate | 2025 |
| Offshore Wind Advisor AS | Professional & scientific | 2022 |
| Ole B Harang Consult AS | Professional & scientific | 2024 |
| Olivia Invest AS | Real estate | 2005 |
| Omf Consulting AS | Professional & scientific | 2018 |
| Oral-Rehabilitering AS | Health & social care | 1997 |
| P3PRAXIS AS | Professional & scientific | 2018 |
| Panamax Music AS | Arts & recreation | 2016 |
| Pandemonium Holding AS | | 2023 |
| Panov Co. AS | | 2020 |
| PK Holding AS | | 2025 |
| Pocket Invest AS | Financial services | 2005 |
| Pot Invest AS | Professional & scientific | 2006 |
| Premiss Communication AS | Information & communication | 2006 |
| Pulmenti Holding AS | | 2020 |
| Rago AS | | 2024 |
| Ral 179 Holding AS | | 2023 |
| Reba Invest AS | | 2019 |
| Redd Filmen AS | Information & communication | 2017 |
| Refsdal AS | Professional & scientific | 2024 |
| Restaurantservise Hovden Da | Hospitality | 1998 |
| Rett IT AS | Wholesale & retail | 2013 |
| Rolfsen Group AS | Professional & scientific | 2025 |
| S&M Opera AS | | 2025 |
| S. Halvorsen Holding AS | Professional & scientific | 2024 |
| Saltfjellet Eiendom AS | Real estate | 1989 |
| Samhandling- Sikkerhet-Trygghet- SST- Modellen AS | Education | 2008 |
| Sams Kantiner AS | Hospitality | 2022 |
| Sandvika Psykologklinikk AS | Health & social care | 2026 |
| Sandvika Rør AS | Construction | 2013 |
| SAS Ctrl AS | Professional & scientific | 2023 |
| Sealines AS | Professional & scientific | 2010 |
| Sector Properties AS | Real estate | 2016 |
| Seras AS | Administrative & support | 2023 |
| SH Eiendomsdrift AS | Administrative & support | 2024 |
| Si-Ba Handel Da | Wholesale & retail | 1989 |
| Silverline Holding AS | | 2024 |
| Siv. Ing. Espen Strand AS | Professional & scientific | 2012 |
| Skinteam Invest AS | | 2020 |
| Skiperformance AS | Information & communication | 2014 |
| Skollerud Eiendom AS | Real estate | 2023 |
| Skotta AS | Hospitality | 2024 |
| Smile Company Holding AS | | 2022 |
| Smu AS | Information & communication | 2016 |
| Snekkerbua AS | Wholesale & retail | 2009 |
| Snekkern Fra Verket AS | Construction | 2022 |
| Snekkestad Holding AS | | 2021 |
| Sommerfeldt Bærums Verk AS | Wholesale & retail | 2021 |
| Speewell AS | Professional & scientific | 2007 |
| Spor Natur Og Reiseliv AS | Professional & scientific | 2023 |
| Sportsverket AS | Wholesale & retail | 1997 |
| Spurvis AS | Financial services | 2018 |
| Stamina Holding AS | | 2025 |
| STEFANOS ANS Stefanos Pitias og Kristin Huser | Other services | 1991 |
| Stigital AS | Information & communication | 2024 |
| Stilett AS | Information & communication | 2001 |
| Stokka Entreprise AS | Professional & scientific | 2019 |
| Stokka Investment Group AS | Professional & scientific | 2016 |
| Stonewood AS | Financial services | 2019 |
| Storaas Quality Consulting AS | Professional & scientific | 2019 |
| Streaking Caddis AS | Information & communication | 2024 |
| Strømsodd Capital AS | Financial services | 2005 |
| Studio Face & Body AS | Other services | 2013 |
| Studio Fia AS | Information & communication | 2024 |
| Swan Growth Strategy AS | Professional & scientific | 2022 |
| Tannlege Buer Drift AS | Health & social care | 2026 |
| Tannlege Buer Holding AS | | 2026 |
| Tannlege Eva Hagen AS | Health & social care | 2021 |