| Mixed World Limited | Wholesale & retail | 2018 |
| Mixford Worldwide L.P. | | 2015 |
| Mixmatch Limited | Wholesale & retail | 2024 |
| Mixmiri Management LP | | 2016 |
| Mixtraff LP | | 2018 |
| MIZ Motors Ltd | Transport & logistics | 2019 |
| MJ Hudson Investments II LP | | 2020 |
| MJ Joinery (Scot) Ltd. | Construction | 2019 |
| MJ Lashes Limited | Wholesale & retail | 2022 |
| MJ Malben Inc Ltd | Financial services | 2025 |
| MJ Motorsport Limited | Arts & recreation | 2021 |
| MJ Private Hire Edinburgh LP | | 2011 |
| MJ Private Hire Ltd | Transport & logistics | 2024 |
| MJ Project Consultancy Ltd | Construction | 2021 |
| MJ Property Rentals Ltd | Households | 2022 |
| MJ Travel Design Ltd | Administrative & support | 2022 |
| MJA Edinburgh Ltd | Financial services | 2022 |
| Mjaanalkh Ltd | Wholesale & retail | 2025 |
| Mjar Catering Limited | Hospitality | 2020 |
| MJC Joinery Limited | Construction | 2018 |
| MJD Electrical Services Group Ltd | Construction | 2025 |
| MJD Fire & Security Ltd | Administrative & support | 2023 |
| Mjdp Ltd | Health & social care | 2011 |
| Mjes MEC. Y Ptas. EN Marcha UK, Limited | Construction | 2021 |
| MJF Business Consultants Ltd | Professional & scientific | 2014 |
| MJH Inspections Ltd | Professional & scientific | 2024 |
| MJK Managment Ltd | Professional & scientific | 2019 |
| MJL Consulting Engineers Ltd | Professional & scientific | 2015 |
| MJL Mediconsult Limited | Health & social care | 2021 |
| Mjlet Ltd | Hospitality | 2026 |
| MJU (PR Consultants) Limited | Hospitality | 2017 |
| MK Building Construction Ltd | Construction | 2023 |
| MK Business Group Ltd | Administrative & support | 2024 |
| MK Enterprise ED UK Ltd | Real estate | 2025 |
| MK Klassy Services Links Ltd | Administrative & support | 2021 |
| MK Leader LP | | 2014 |
| MK Marine Enterprises LP | | 2014 |
| MK Property 1 Ltd | Real estate | 2026 |
| MK Scot Ltd | Professional & scientific | 2024 |
| MK7 Limited | Professional & scientific | 2013 |
| MKA Alba Ltd | Wholesale & retail | 2022 |
| MKA Retail Limited | Wholesale & retail | 2021 |
| Mkiv Limited | Financial services | 2022 |
| Mkjoinery Edinburgh Ltd | Construction | 2022 |
| Mkkm Joinery Ltd | Construction | 2025 |
| MKL Consulting Ltd | Professional & scientific | 2011 |
| Mkljt Ltd | Households | 2025 |
| MKM Psychology Consulting Ltd | Professional & scientific | 2026 |
| MKM Reports Ltd | Health & social care | 2021 |
| Mkmfencingandcontracting Ltd | Construction | 2021 |
| Mkmtwo LLP | | 2023 |
| Mkncc Global SCT Ltd | Education | 2021 |
| MKR Events L.P. | | 2019 |
| MKR Theory Ltd | Wholesale & retail | 2025 |
| MKS Joinery Ltd | Construction | 2018 |
| Mksa Edinburgh Ltd | Financial services | 2025 |
| MKY Brands Ltd | Wholesale & retail | 2021 |
| MKY Holdings Ltd | Financial services | 2021 |
| MKY Invest Ltd | Financial services | 2025 |
| MKY Property Ltd | Real estate | 2024 |
| MKY Sorrento Ltd | Wholesale & retail | 2024 |
| MKY1 Holdings Limited | Financial services | 2025 |
| ML Direct Limited | Wholesale & retail | 2014 |
| ML Invest Scotland Finance II Limited Partnership | | 2005 |
| ML Invest Scotland Finance III Limited Partnership | | 2005 |
| ML Invest Scotland Finance Limited Partnership | | 2005 |
| ML Investment Management Ltd | Extraterritorial | 2012 |
| ML Training Limited | Professional & scientific | 2013 |
| MLC Care Limited | Health & social care | 2025 |
| MLD Travel LP | | 2024 |
| MLE Solutions Limited | Professional & scientific | 2016 |
| MLG Statistical Services Ltd. | Professional & scientific | 2015 |
| MLK Subsea Ltd | Financial services | 2026 |
| Mlogica UK Ltd | Information & communication | 2015 |
| MLR Consulting LLP | | 2009 |
| MLS Surgery Limited | Health & social care | 2019 |
| MLS Systems Ltd | Wholesale & retail | 2019 |
| MLV Property Management Limited | Real estate | 2021 |
| MLW Construction Ltd | Construction | 2014 |
| MLZ Consulting Ltd | Information & communication | 2007 |
| MM Commerce Ltd | Other services | 2020 |
| MM Consultancy & Service Limited | Professional & scientific | 2022 |
| MM Edinburgh Ltd | Hospitality | 2025 |
| MM EYE Care Limited | Health & social care | 2007 |
| MM Global Limited | Administrative & support | 2024 |
| MM Homeware Ltd | Wholesale & retail | 2026 |
| MM Landscaping and Joinery Limited | Construction | 2024 |
| MM Motors (Scotland) Limited | Wholesale & retail | 2023 |
| MM Repair Services Limited | Other services | 2011 |
| MM Sports Promotion LP | | 2014 |
| MM Woodworks Ltd | Manufacturing | 2026 |
| MM4CHANGE Ltd | Professional & scientific | 2012 |
| MM6 Limited | Administrative & support | 2017 |
| MMA Brothers Limited | Wholesale & retail | 2025 |
| MMA Nominees Limited | Other services | 1994 |
| MMA Triazine Consortium LLP | | 2011 |
| MMA Trustees Limited | Other services | 1994 |
| MMB Luxury Travel Ltd | Transport & logistics | 2022 |
| MMC (Scotland) Limited | Extraterritorial | 2022 |
| MMC Capital Solutions LP | | 2020 |