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| MKX AS | Stavanger | 2017 |
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| ML Prosjekt AS | Billingstad | 2020 |
| ML Utvikling AS | Son | 2014 |
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| Mla AS | Oslo | 2019 |
| Mlae Consulting AS | Jørpeland | 2012 |
| Mlbv AS | Oslo | 2026 |
| MLD Certification Services Ltd | Aberdeen Ab11 7Sl Scotland | 2016 |
| Mle AS | Oslo | 2025 |
| MLK Consulting AS | Slemmestad | 2024 |
| MLM Utvikling AS | Narvik | 2016 |
| MLN AS | Bekkjarvik | 2018 |
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| Mlpf Holding AS | Kolbotn | 2017 |
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| MLT AS | Aurskog | 2019 |
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| MM Capital Invest AS | Lørenskog | 2018 |
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| MM Profil AS | Straumgjerde | 2013 |
| MM Rådgivning AS | Rådal | 2023 |
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| MM4 Management AS | Skien | 2024 |
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| Mmane Holding AS | Indre Arna | 2021 |
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| Mmnor Invest AS | Kolvereid | 2021 |
| Mmo AS | Ågotnes | 2025 |
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| MN Charge Norway Projects AS | Oslo | 2024 |
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| MNM Holding AS | Bryne | 2023 |
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| Mnts Capital AS | Oslo | 2023 |
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| Mo Entreprenør AS | Øystese | 2018 |
| Mo Group AS | Nesodden | 2019 |
| Mo NDT & Inspection AS | Mo I Rana | 2024 |
| Mo Solutions AS | Lysaker | 2025 |
| Moa Promotering AS | Sande I Vestfold | 2017 |
| Moa Regnskap AS | Ålesund | 2006 |
| Moa Revisjon AS | Ålesund | 2007 |
| Moag Invest AS | Bergen | 2012 |
| Moal Engineering | Se-29162 Kristianstad | 2014 |
| Moar Quants AS | Ålesund | 2017 |
| Moasen Eiendom AS | Oslo | 2015 |
| Mob Safety Services Limited | Leeds Ls18 4Lu | 2012 |
| Moba Bedriftsutvikling AS | Moss | 2016 |
| Mober AS | Snillfjord | 2025 |
| Moberg Energi AS | Skjeberg | 2020 |
| Moberghaugen Invest AS | Lillestrøm | 2020 |
| Mobica Limited | Oslo | 2008 |
| Mobil Refining Australia Pty. Ltd. | Stavanger | 2016 |
| Mobile Airbridge AS | Stavanger | 2018 |
| Mobile Fabrication Site and Port AS | Oslo | 2021 |
| Mobile Gaps AS | Oslo | 2005 |
| Mobileone AS | Tvedestrand | 2006 |
| Mobilexperten AS | Oslo | 2024 |
| Mobiliti AS | Haslum | 2025 |
| Mobilits AS | Trondheim | 2018 |
| Mobilityfund Advisory AS | Oslo | 2024 |
| Mobilityx AS | Stavanger | 2025 |
| Mobilize Strategy Consulting AS | Oslo | 2015 |
| Mobilmote AS | Krokkleiva | 2003 |
| Mobinvest AS | Paradis | 2005 |
| Mobisale AS | Oslo | 2014 |
| Mobius Coaching and Development Ltd | Skibberen, Co.Cork | 2012 |
| Mobman AS | Bekkestua | 2020 |
| Mobman Holding AS | Bekkestua | 2018 |
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| Mobylinq AS | Larvik | 2023 |
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| Mode Sensors AS | Trondheim | 2016 |
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