| Mishkenotecha Limited | Real estate | 2017 |
| Misio Properties Limited | Real estate | 2021 |
| Miste Edinburgh Limited | Real estate | 2024 |
| Mitch Kane Limited | Construction | 2019 |
| Mitchell & Murdoch Care Ltd | Health & social care | 2019 |
| Mitchell and Murdoch Group Limited | Financial services | 2024 |
| Mitchell Carriers Ltd | Transport & logistics | 2025 |
| Mitchell Mechanical Ltd | Professional & scientific | 2025 |
| Mitchell Wealth Limited | Professional & scientific | 2026 |
| Mitchell's Cakes & Catering Ltd | Hospitality | 2023 |
| Mitopulse Pemf Ltd | Health & social care | 2025 |
| Mixing Glass Bars Ltd | Hospitality | 2017 |
| MJ and Sons LLP | | 2026 |
| MJ Properties (Edenbank) Limited | Real estate | 2020 |
| MJC Joinery (Edenbank) Ltd | Manufacturing | 2025 |
| MJD Qs/Building Services Limited | Professional & scientific | 2024 |
| MJJ Foods Ltd | Wholesale & retail | 2020 |
| MJK Electrical Limited | Construction | 2011 |
| MJM Coachbuilders Ltd | Manufacturing | 2018 |
| MJR Roofing Limited | Construction | 2025 |
| MJS Cycling Limited | Arts & recreation | 2023 |
| MK Beauty Spa Ltd | Other services | 2023 |
| MK Coatings (Dundee) Ltd | Administrative & support | 2019 |
| MK Green Services Ltd | Administrative & support | 2021 |
| MK Hardy Ltd | Arts & recreation | 2023 |
| MK Investments & Developments Ltd | Real estate | 2021 |
| MK Leasing Ltd | Real estate | 2025 |
| MK Project Performance Ltd | Manufacturing | 2023 |
| MK Properties Dundee Ltd | Real estate | 2017 |
| MK Thai Ltd | Hospitality | 2017 |
| MK Thai Trading Ltd | Hospitality | 2017 |
| MKA Catering Limited | Hospitality | 2020 |
| MKC Glasgow Ltd | Hospitality | 2020 |
| Mklm Access Limited | Construction | 2025 |
| MKS Car Sales Ltd | Wholesale & retail | 2023 |
| MKW Dundee Ltd | Hospitality | 2026 |
| ML Cabs Ltd | Transport & logistics | 2021 |
| Mlhydrate Ltd | Wholesale & retail | 2026 |
| MLL Homes Ltd | Real estate | 2025 |
| MLL Transport Limited | Transport & logistics | 2025 |
| MLN Health Safety & Environmental Consultants Limited | Mining & quarrying | 2016 |
| MM Autoservices Limited | Wholesale & retail | 2011 |
| MM Care Homes Limited | Health & social care | 2026 |
| MM Care Ltd | Health & social care | 2022 |
| MM Domestics Ltd | Administrative & support | 2022 |
| MM Homecare Ltd | Health & social care | 2024 |
| MM Nursing Ltd | Health & social care | 2022 |
| MM Stays Ltd | Real estate | 2026 |
| MM Support Ltd | Health & social care | 2022 |
| MM Taxis Ltd | Transport & logistics | 2020 |
| MM Training Ltd | Administrative & support | 2023 |
| MMB Associates (Scotland) Limited | Professional & scientific | 2022 |
| Mmda Ltd | Hospitality | 2018 |
| MMG Audit Limited | Professional & scientific | 2021 |
| MMG Holdco Limited | Financial services | 2025 |
| MMG Partners LLP | | 2025 |
| Mmgca | Professional & scientific | 2011 |
| MMI Foods Ltd | Hospitality | 2025 |
| MML Financials Ltd | Professional & scientific | 2026 |
| Mmlk Ltd | Transport & logistics | 2025 |
| Mmmk Contractors Ltd | Transport & logistics | 2023 |
| MMR (Kirkcaldy) Ltd | Hospitality | 2024 |
| MN8S Software Limited | Information & communication | 2016 |
| MNA (Scotland) Limited | Real estate | 2005 |
| MNA Accountants Ltd | Professional & scientific | 2023 |
| MNA Holdco Ltd | Real estate | 2026 |
| MNA Property (Dundee) Ltd | Real estate | 2015 |
| MNL Automotive Ltd | Wholesale & retail | 2025 |
| MO Psychology and Development Ltd | Health & social care | 2024 |
| MO1983 Wellservices Ltd | Professional & scientific | 2025 |
| Mobi Store Limited | Wholesale & retail | 2023 |
| Mobileentertainmentstore LP | | 2017 |
| Mobilegamesgroup.Com LP | | 2017 |
| Mochridhe (Edinburgh and Lothians) Limited | Health & social care | 2012 |
| Mochridhe Limited | Health & social care | 2005 |
| Moco SPV Limited | Professional & scientific | 2022 |
| Modeus Ltd | Professional & scientific | 2026 |
| Modevie Consulting Ltd | Other services | 2022 |
| Modus Research and Innovation (Europe) Limited | Professional & scientific | 2024 |
| Modus Research and Innovation Limited | Professional & scientific | 2017 |
| Moebius Services Limited | Extraterritorial | 2020 |
| Moeh Ltd | Wholesale & retail | 2025 |
| Mogi Group 1 Ltd | Transport & logistics | 2025 |
| Mogi Group 2 Limited | Transport & logistics | 2025 |
| Mogi Group 541 Ltd | Transport & logistics | 2025 |
| Mogi Group Ltd | Transport & logistics | 2020 |
| Mohimoni Limited | Hospitality | 2008 |
| Moine Caledonian Projects Limited | Information & communication | 2014 |
| Mojo Real Estate (Dundee) Limited | Real estate | 2017 |
| Molex Signal Tech Microwave Ltd | Manufacturing | 1985 |
| Mollies Taxis Limited | Transport & logistics | 2023 |
| Mollison HPR Ltd | Construction | 2024 |
| Mollono Capital LP | | 2016 |
| Monarch Bay Ltd Ltd | Wholesale & retail | 2026 |
| Monarchy Roofing (Nationwide) Ltd | Construction | 2026 |
| Moncrieffe Holdings Limited | Real estate | 2019 |
| Monde Test Consultancy Ltd | Information & communication | 2013 |
| Mondegreen Records Limited | Arts & recreation | 2019 |
| Mondocrest L.P. | | 2016 |
| Monifieth Hand Car Wash Ltd | Administrative & support | 2026 |