| Moves of Norway AS | Oslo | 2013 |
| Moving AS | Vollen | 2021 |
| Moving Mountains Ans | Skåbu | 2019 |
| Movinkel Holding AS | Førde | 2023 |
| Moxnes Trafikkskole AS | Trondheim | 2020 |
| MP Holding AS | Stokmarknes | 2012 |
| MPC Holding AS | Skien | 2024 |
| Mpowered AS | Vadsø | 2024 |
| Mr.Traffiq AS | Greåker | 2012 |
| Msa Trafikkskole AS | Oslo | 2023 |
| MSB Sport Og Invest AS | Oslo | 2014 |
| MSM Invest AS | Porsgrunn | 2016 |
| MSN Bergen AS | Godvik | 2021 |
| Mta Learning Center AS | Høvik | 2017 |
| MTK Skolen AS | Sem | 2014 |
| Mtss Da | Gjøvik | 2025 |
| Mu Coaching AS | Mjølkeråen | 2026 |
| Mudita Care AS | Stavanger | 2026 |
| Muggoppen Barnehage AS | Jordet | 2014 |
| Mulighetsrommet AS | Vollen | 2025 |
| Mullersgate 14 AS | Otta | 2023 |
| Multibemanning AS | Oslo | 2015 |
| Multipluss AS | Hafslundsøy | 2025 |
| Multiskole AS | Oslo | 2025 |
| Mumbi AS | Oslo | 2026 |
| Mummidalen Barnehage AS | Kristiansand S | 2010 |
| Munkeby Gård- Og Naturbarnehage SA | Levanger | 2007 |
| Munkerud Holding AS | Roa | 2024 |
| Muntlig AS | Oslo | 2026 |
| Muriqi Global AS | Oslo | 2026 |
| Muscle Animations AS | Oslo | 2013 |
| Museumshjelpen AS | Hafrsfjord | 2015 |
| Musica Synergi AS | Oslo | 1997 |
| Musicolog in Vest AS | Stord | 1993 |
| Musikk for Barn - Akerholm Musikkskole | Se-130 54 Dalarö | 2011 |
| Musikkbritt AS | Tjøme | 2014 |
| Musikktrollet Barnehage AS | Rakkestad | 2024 |
| Musikkundervisning Norge AS | Oslo | 2017 |
| Musikkundervisningen Norge AS | Asker | 2013 |
| Muskel Gruppen AS | Lørenskog | 2023 |
| Muskler, Mat Og Mening AS | Kolbotn | 2019 |
| My Strong Self AS | Nesodden | 2021 |
| My-Ra AS | Kløfta | 2024 |
| Myboost AS | Stavanger | 2018 |
| Mycel AS | Kristiansand S | 2023 |
| Myeducation - Norge AS | Lillestrøm | 2012 |
| Myhre Gård AS | Skammestein | 2025 |
| Myhre Management AS | Jevnaker | 2026 |
| Mylicense AS | Eidsvoll | 2022 |
| Myo Trening Porsgrunn AS | Porsgrunn | 2024 |
| Myra Barnehage SA | Valderøya | 1988 |
| Myra Center for Athlete Development AS | Hosle | 2024 |
| Myre Bedriftsbarnehage AS | Myre | 1989 |
| Myren Gårdsbarnehage AS | Mathopen | 2015 |
| Myren Trafikkskole AS | Hamresanden | 2017 |
| Myrsnipa Fus Barnehage AS | Haslum | 2019 |
| Myrvegen Familiebarnehage AS | Tromsdalen | 2017 |
| Myrvold Coaching AS | Bryne | 2022 |
| Mysen Prestasjon Og Helse AS | Mysen | 2019 |
| Mysen Tennisakademi AS | Son | 2020 |
| Mysore Yoga Oslo AS | Oslo | 2014 |
| Mystrongestside AS | Nesttun | 2025 |
| Málatvuomi Sámi Mánáidgárdi SA | Bardufoss | 2008 |
| Márkománák Sámi Mánáidgárdi AS | Evenskjer | 2024 |
| Målrettet Kompetanse AS | Oslo | 2002 |
| Målselv Trafikkskole AS | Bardufoss | 1989 |
| Måltrosten Barnehage AS | Oslo | 2022 |
| Måløy Førstehjelp Da | Deknepollen | 2024 |
| Måndalen Friskule SA | Måndalen | 2016 |
| Mælumslykkja Barnehage SA | Brøttum | 1991 |
| Mærradalen Barnehage AS | Oslo | 2022 |
| Møbelsnekkerskolen AS | Mysen | 2012 |
| Møglestu Fus Barnehage AS | Lillesand | 2018 |
| Møllefossen Barnehage AS | Vestfossen | 2006 |
| Møller Bilskolen AS | Oslo | 2024 |
| Møller Consult AS | Larvik | 2015 |
| Møller Trening AS | Oslo | 2025 |
| Møllerdammen Naturbarnehage AS | Holmestrand | 2007 |
| Mølnholtet Familiebarnehage Nuf | Harstad | 2011 |
| Mønshaugen Barnehage SA | Voss | 1992 |
| Møre Barne- Og Ungdomsskule Skodje AS | Skodje | 2014 |
| Møre Ungdomsskule Giske AS | Valderøya | 2022 |
| Mørk Trafikkskole AS | Sarpsborg | 2008 |
| Mørk Trafikkskole Moss AS | Moss | 2025 |
| Mørkve Holding AS | Vossestrand | 2012 |
| Mørkve Trafikkskule AS | Voss | 2012 |
| N.G.S Montessori AS | Gratangen | 2014 |
| Nab Holding AS | Strusshamn | 2009 |
| Nab Skogen Barnehage AS | Strusshamn | 2011 |
| Naeid AS | Namdalseid | 2021 |
| Naf Lånkesenteret AS | Oslo | 2014 |
| Naf Trafikksenter AS | Braskereidfoss | 1989 |
| Nakuba Holding AS | Skotselv | 2022 |
| Nakuhel Friluftsbarnehage SA | Asker | 2007 |
| Nal Holding AS | Kolltveit | 2005 |
| Nalini AS | Larvik | 2021 |
| Nama AS | Fjellstrand | 2022 |
| Namdal Førstehjelp Og Redningsopplæring AS | Spillum | 2013 |
| Namsos Barnehage SA | Spillum | 1989 |
| Namsos Bil Og MC Trafikkskole AS | Namsos | 2010 |