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| Metaverse AS | Oslo | 2022 |
| Metis Bergen Private Gymnas AS | Bergen | 2005 |
| Metis Fagskole AS | Oslo | 2021 |
| Metis Privatistskole AS | Bergen | 2007 |
| Metis Privatistskole Bergen AS | Bergen | 2025 |
| Metis Privatistskole Oslo AS | Oslo | 2024 |
| Metis Privatistskole Stavanger AS | Stavanger | 2024 |
| Metis Privatlærer Bergen AS | Bergen | 2024 |
| Metis Privatlærer Oslo AS | Oslo | 2024 |
| Metis Privatlærer Stavanger AS | Stavanger | 2024 |
| Metis Utdanning AS | Oslo | 2019 |
| Metis Videregående AS | Bergen | 2002 |
| Metodemannen AS | Oslo | 2015 |
| Metro Trafikkskole AS | Lørenskog | 1996 |
| Metro Trafikkskole Groruddalen AS | Oslo | 2024 |
| Mette Collett & Partners AS | Sandnes | 2025 |
| Mewell AS | Sandnes | 2024 |
| Mezz AS | Oslo | 2020 |
| Mezz People AS | Oslo | 2021 |
| MF Hälsoutbildningar AB | Se-112 34 Stockholm | 2011 |
| MG Kapital AS | Lørenskog | 2023 |
| MHH Bad AS | Oslo | 2018 |
| Mi Aiuta AS | Skien | 2024 |
| Miba AS | Sandane | 2021 |
| Michael Method Nordic AS | Oslo | 2019 |
| Micro Ok Service AS | Hundeidvik | 2008 |
| Midgar Flyfish AS | Kråkerøy | 2019 |
| Midt I Blinken Trafikkskole AS | Fyllingsdalen | 2024 |
| Midt-Norge Førstehjelp AS | Surnadal | 2022 |
| Midt-Norsk Sikkerhetsopplæring AS | Trondheim | 1999 |
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| Midtlyng Invest AS | Moss | 2021 |
| Midtnorsk Opplæring AS | Fannrem | 1997 |
| Mie Invest AS | Oslo | 2019 |
| Miira Konsult Da | Mandal | 2025 |
| Mikael Micke Lewin AS | Kløfta | 2021 |
| Mikaelgården AS | Oslo | 2012 |
| Mikrogården AS | Mogreina | 2024 |
| Milde Mathilde & Drillpikene AS | Saksvik | 2013 |
| Miljøberedskap AS | Stathelle | 2022 |
| Miljøtoks AS | Sandefjord | 2026 |
| Mimaki Holding AS | Oslo | 2021 |
| Min Barnehage Eiendom AS | Porsgrunn | 2006 |
| Min Barnehage, Øyekast AS | Porsgrunn | 2017 |
| Min Mentor AS | Bergen | 2021 |
| Min Sone AS | Oslo | 2023 |
| Min Trafikkskole AS | Vigrestad | 2016 |
| Min Verdivurdering AS | Lørenskog | 2024 |
| Min Árbi SA | Oslo | 2024 |
| Mind AS | Trondheim | 2010 |
| Mind D AB | Se-546 94 Undenäs | 2011 |
| Mind Too AS | Hvalstad | 2020 |
| Mind-Set-Go AS | Eidsvoll | 2025 |
| Mindful Ventures AS | Oslo | 2017 |
| Mindful Yoga Tromsø AS | Kvaløya | 2020 |
| Mindful-Living AS | Ulset | 2018 |
| Mindgrit AS | Trondheim | 2019 |
| Mindmaster AS | Furnes | 2024 |
| Miniland AS | Oslo | 2025 |
| Minimentor AS | Hafrsfjord | 2026 |
| Miniplask AS | Grimstad | 2025 |
| Minken Barnehage AS | Fyllingsdalen | 1991 |
| Minkens Teaterskole AS | Oslo | 2023 |
| Minothi AS | Jar | 2016 |
| Mirsi AS | Bergen | 2014 |
| Missingmyr Barnehage AS | Råde | 2007 |
| Mistral Digital AS | Bergen | 2012 |
| Mithril Health AS | Oslo | 2023 |
| Mitt Lederunivers AS | Nesodden | 2019 |
| Mitt Yoga AS | Molde | 2020 |
| Mittpusterom.Com AS | Oslo | 2021 |
| Mjughaugskogen Barnehage SA | Hafrsfjord | 1992 |
| Mjuk AS | Haugesund | 2016 |
| Mjær Fus Barnehage AS | Ytre Enebakk | 2007 |
| Mjølner Group AS | Stokke | 2025 |
| Mjøsa Klatresenter AS | Hamar | 2023 |
| Mjøsanker AS | Hamar | 1997 |
| Mjøsanker Karriere AS | Hamar | 2018 |
| Mkaf Fagertun Barnehage AS | Mosjøen | 2022 |
| Mke Holding AS | Grimstad | 2005 |
| MKN Coaching AS | Sandane | 2023 |
| Mknudsen AS | Laksevåg | 2023 |
| MM Dansekurs Da | Bekkestua | 2009 |
| MMG Consulting AS | Frogner | 2026 |
| MMS Trafikkskole AS | Storsteinnes | 2026 |
| Mne Holding AS | Maura | 2025 |
| Moa Trafikkskole AS | Ålesund | 2022 |
| Moan Performance AS | Trondheim | 2026 |
| Mobakken Barnehage AS | Borgenhaugen | 2023 |
| Mobarn Bolsøya Barnehage AS | Molde | 2022 |
| Mobarn Cecilienfryd Barnehage AS | Molde | 2022 |
| Mobarn Dalelia Barnehage AS | Molde | 2022 |
| Mobarn Hauglia Barnehage AS | Molde | 2022 |
| Mobarn Høgnakken Barnehage AS | Molde | 2022 |
| Mobarn Lyngen Barnehage AS | Molde | 2022 |
| Mobarn Nordbyen Barnehage AS | Molde | 2022 |
| Mobarn Panorama Barnehage AS | Molde | 2022 |
| Mobarn Røsandåsen Barnehage AS | Molde | 2022 |
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