| Linda Rudolfsen Myklebust AS | | 2025 |
| Lindtner VVS AS | Construction | 1997 |
| Linjeveien 55 AS | Real estate | 2005 |
| Lise Kapital AS | | 2024 |
| Live Seafood AS | Professional & scientific | 2012 |
| Livi Beauty AS | Wholesale & retail | 2026 |
| Livo Bolig AS | Real estate | 2021 |
| Ljo Holding AS | | 2023 |
| LM Consulting Services AS | Professional & scientific | 2017 |
| Lmhovden Invest AS | | 2025 |
| Loktu Kapital AS | | 2022 |
| Lonhaugen AS | Real estate | 1996 |
| Lonoy Geoconsulting AS | Professional & scientific | 2014 |
| Lumea AS | | 2025 |
| Lundekvam Holding AS | Professional & scientific | 2025 |
| Lur Investering AS | | 2025 |
| Luxus in Vest AS | Financial services | 2018 |
| Lyngsgård & Dahl Maskinstasjon Ans | Construction | 1987 |
| Lynki AS | Information & communication | 2026 |
| Lysen Kran Og Transport AS | Administrative & support | 2022 |
| Lønne Holding AS | | 2018 |
| Løwø Holding AS | | 2024 |
| M-H Holding AS | | 2024 |
| M.Kolås AS | Construction | 2025 |
| Madzienka Holding AS | Financial services | 2014 |
| Magiskaper AS | Education | 2022 |
| Magmar Holding AS | | 2026 |
| Majava Invest AS | Real estate | 1990 |
| Making Do AS | Financial services | 2018 |
| Makários AS | Real estate | 2016 |
| Malenes Byggservice AS | Construction | 2025 |
| Maler I Bergen AS | Construction | 2022 |
| Malerfirma Woldseth & Melkevik AS | Construction | 1996 |
| Malermester J.C Andreassen AS | Construction | 2012 |
| Mamma AS | Administrative & support | 2017 |
| Mangerud AS | Mining & quarrying | 2018 |
| Margaryan AS | Wholesale & retail | 2023 |
| Marihen AS | Health & social care | 2017 |
| Marion SMS Eiendom AS | Financial services | 2005 |
| Marit Rekve AS | Health & social care | 2018 |
| Maritime Medicine AS | Education | 2021 |
| Maritime Transport AS | Transport & logistics | 2021 |
| Markar Holding AS | Agriculture & fishing | 2024 |
| Marken 4 AS | Real estate | 2006 |
| Marlys Holding AS | | 2025 |
| Master Cityrent AS | Administrative & support | 2026 |
| Matbordet AS | Wholesale & retail | 2005 |
| Matthew 11:28 AS | | 2022 |
| Maurtun Holding AS | Construction | 2013 |
| MB Invest AS | Real estate | 2003 |
| MBI1 AS | Real estate | 2023 |
| MCL Invest AS | Real estate | 2022 |
| MD Bil AS | Wholesale & retail | 2017 |
| Medark AS | Health & social care | 1989 |
| Medisinsk Trening AS | Health & social care | 2026 |
| Meditek Capital AS | Real estate | 2006 |
| Mega Utgivelser AS | Information & communication | 2018 |
| Meik - Invest AS | Real estate | 2020 |
| Mellings Invest AS | | 2024 |
| Memexsoft AS | Information & communication | 2026 |
| Mercur C AS | Information & communication | 2023 |
| Merv AS | | 2021 |
| Mestergulv AS | Wholesale & retail | 2012 |
| Mesterhagen Nordås AS | Wholesale & retail | 2023 |
| Meta Design AS | Professional & scientific | 2010 |
| Mevime AS | Financial services | 2015 |
| Mevind AS | Professional & scientific | 2016 |
| Midthun Holding AS | Wholesale & retail | 2014 |
| Midthun Transport AS | Transport & logistics | 1991 |
| Midttveit AS | | 2026 |
| Midtun Kran & Transport AS | | 2003 |
| Midtun Transport & Maskin AS | Construction | 2016 |
| Mihuho Da | Professional & scientific | 2025 |
| Milde Skibsverft AS | | 2013 |
| Minerva Holding AS | Real estate | 2022 |
| Misti AS | Financial services | 2005 |
| Mitt Verksted Nordås AS | Other services | 2017 |
| Mjelde Holding AS | Real estate | 2014 |
| Mjo Invest AS | Information & communication | 2009 |
| MK Digihold AS | | 2024 |
| Mko Invest AS | Financial services | 2014 |
| MKT Central Invest AS | Health & social care | 2025 |
| MM Rådgivning AS | Professional & scientific | 2023 |
| Mma-Holding AS | Real estate | 2017 |
| MN & Co Hjelmeland Invest AS. | | 2026 |
| MNV AS | Financial services | 2013 |
| Mo-Ha Invest AS | Wholesale & retail | 2016 |
| Moe by K AS | Wholesale & retail | 2018 |
| Moliere AS | Manufacturing | 2005 |
| Momoto AS | Professional & scientific | 2017 |
| Monopol Eiendom AS | | 2025 |
| Monsen Holding AS | Wholesale & retail | 2005 |
| Monteo AS | Information & communication | 2020 |
| Morgan Dialog AS | Professional & scientific | 1986 |
| Morten Areklett Consulting AS | Information & communication | 2017 |
| Motivation AS | Education | 2015 |
| Motivation Eiendom Nuf | Real estate | 2005 |
| Motivation Entertainment Nuf | Arts & recreation | 2005 |
| Mp&C AS | Professional & scientific | 2017 |
| Mref Holding AS | Hospitality | 2026 |