| Malmin Invest AS | Professional & scientific | 2012 |
| Mamrian AS | Professional & scientific | 2022 |
| Mantana AS | Real estate | 2005 |
| Masiv AS | Real estate | 2004 |
| Maskin-Team AS | Construction | 2007 |
| Mate AS | Professional & scientific | 2013 |
| Mautec AS | Professional & scientific | 2016 |
| Mealmatcher AS | Information & communication | 2022 |
| Mediaproduksjon AS | Information & communication | 2025 |
| MH Investering AS | | 2024 |
| Midtfjell Utbyggingsselskap AS | Real estate | 2018 |
| Mikki Holding AS | | 2026 |
| Mims Well AS | Professional & scientific | 2016 |
| Minerall AS | Mining & quarrying | 2021 |
| Mineralteknikk AS | Wholesale & retail | 2014 |
| Mjølhus AS | Professional & scientific | 2022 |
| Mobyv AS | Wholesale & retail | 2015 |
| Molo 1 AS | Real estate | 2007 |
| Molo Holding AS | Real estate | 2007 |
| Mosegarn AS | Wholesale & retail | 2021 |
| Motorteknikk AS | Real estate | 2002 |
| Mpekala Holding AS | | 2023 |
| MT Helsekost AS | Wholesale & retail | 2026 |
| MT Rental AS | Administrative & support | 2024 |
| Mugåselva Kraft AS | Energy | 2021 |
| Murerfirma Gjesdal & Rødberg AS | Construction | 2010 |
| MVM AS | Real estate | 2021 |
| MVM Utleie AS | Real estate | 2023 |
| Mølleeiendommen AS | Wholesale & retail | 1998 |
| Mølleparken AS | Real estate | 2018 |
| Mølleparken Utbygging AS | Real estate | 2019 |
| Nedrebø AS | Real estate | 2026 |
| Nest Eiendom AS | Real estate | 2025 |
| Nevland AS | Other services | 2018 |
| Nevland Mask & Mek AS | Construction | 2025 |
| Nexis Energy AS | Professional & scientific | 2024 |
| Nicelab AS | Information & communication | 2026 |
| Niclinc. AS | Hospitality | 2016 |
| Nightliner Transport AS | Transport & logistics | 2020 |
| Nikko AS | Financial services | 2015 |
| Nogo Fabrication AS | Other services | 2025 |
| Nordbøgaten 4 AS | Real estate | 2011 |
| Nordhagen Invest AS | Professional & scientific | 2015 |
| Nordic Design Furniture AS | Wholesale & retail | 2015 |
| Nordic Game Adventures AS | Arts & recreation | 2019 |
| Nordic Palms AS | Wholesale & retail | 2025 |
| Nordic Pet Food Events AS | Wholesale & retail | 2016 |
| Nordstjernen Holding AS | | 2020 |
| Norfit AS | Arts & recreation | 2016 |
| Norgesgruppen Fornybar AS | Energy | 2015 |
| Norgesgruppen Fornybar Solenergi AS | Energy | 2025 |
| Norikon AS | Wholesale & retail | 1999 |
| Normill AS | Information & communication | 2021 |
| Norprocess AS | Wholesale & retail | 2013 |
| Norsk Industrivern AS | Wholesale & retail | 1988 |
| Norsolar AS | Construction | 2014 |
| Norwegian Pharma AS | Wholesale & retail | 2009 |
| NR Betong AS | Construction | 2026 |
| NXT LVL AS | Professional & scientific | 2023 |
| NXT LVL Hodl AS | Professional & scientific | 2023 |
| Nygård Bits AS | Real estate | 2017 |
| Næsse Eiendom AS | Real estate | 1978 |
| Næsse Holding AS | Real estate | 2005 |
| Nølio AS | | 2026 |
| Oa Investering AS | | 2013 |
| Obsido Holding AS | | 2021 |
| Odd Joar Gravdal Maskin AS | Administrative & support | 1980 |
| Odin Lund AS | | 2026 |
| Olav's Hot Rod Garage AS | Wholesale & retail | 2009 |
| Ole Nilssen Holding AS | | 2026 |
| Onetland Holding AS | | 2022 |
| Opstad Auto AS | Other services | 2013 |
| Opstadveien Eiendomsutvikling AS | Manufacturing | 2019 |
| Optimal Transport, Sviland Da | Transport & logistics | 2016 |
| Ormen AS | | 2023 |
| Orvinvest AS | Real estate | 2009 |
| Passe Mett Produksjon Da | Information & communication | 2011 |
| PASSION4FOOD AS | Manufacturing | 2025 |
| Pedersen Mekaniske AS | Other services | 2025 |
| Peregrine Norge AS | Wholesale & retail | 2020 |
| Petro Management Consulting AS | Professional & scientific | 2013 |
| Pietro Eiendom AS | Real estate | 2004 |
| Pigro AS | Real estate | 2023 |
| Pizza E39 AS | Hospitality | 2017 |
| PJJ Holding AS | Construction | 2013 |
| Polysolutions AS | Professional & scientific | 2026 |
| Profilmesteren AS | Wholesale & retail | 2023 |
| Prosesstek AS | Professional & scientific | 2025 |
| Protoparts AS | Professional & scientific | 2025 |
| Pte Eiendom AS | Real estate | 2012 |
| Quest Innovate AS | Manufacturing | 2020 |
| R.Holden Invest AS | Real estate | 2014 |
| R.Øvrebø AS | | 2024 |
| Ragstri AS | | 2016 |
| Ram Games AS | Information & communication | 2025 |
| Ravndal Holding AS | Real estate | 2014 |
| Ravndal Invest AS | | 2022 |
| Ravndal Stålbygg AS | Construction | 2014 |
| Rawo Ans | Wholesale & retail | 2002 |
| Reconsult Tjetland AS | Professional & scientific | 2017 |