| Makitom LP | | 2016 |
| Makkin Clothing Ltd | Wholesale & retail | 2025 |
| Makklim Maritime LP | | 2014 |
| Maklau Publishing LP | | 2020 |
| Makorls PVT Ltd | Wholesale & retail | 2019 |
| Makpoint Limited | Wholesale & retail | 2024 |
| Makston LP | | 2014 |
| MAL Glasgow Limited | Hospitality | 2026 |
| MAL Management Ltd | Extraterritorial | 2012 |
| Malabar Group Ltd | Wholesale & retail | 2024 |
| Malabo Salazar LP | | 2011 |
| Malach Gavriel Ltd | Real estate | 2021 |
| Malake Investments Limited | Real estate | 2024 |
| Malbet (Building Division) Limited | Construction | 2020 |
| Malbo LP | | 2013 |
| Malco Consulting Services Limited | Professional & scientific | 2025 |
| Malcolm Barnett & Associates | | 1993 |
| Malcolm Duffin Design Ltd | Wholesale & retail | 2010 |
| Malcolm Investments LP | | 2013 |
| Malcolm Product Design Ltd | Professional & scientific | 2026 |
| Malcolm Smith Joinery & Building Ltd | Construction | 2016 |
| Malcolmhardie Solutions Limited | Information & communication | 2005 |
| Malden Global Epidemiological Services Limited | Professional & scientific | 2024 |
| Male Fertility Scotland Ltd | Information & communication | 2026 |
| Maleena Ltd | Administrative & support | 2023 |
| Malentrade Inter LP | | 2014 |
| Malet Metals LP | | 2016 |
| Malexx LP | | 2012 |
| Malghalaratech Ltd | Information & communication | 2022 |
| Malianno Holding LP | | 2016 |
| Malik Accountax Ltd | Professional & scientific | 2023 |
| Malik AJ Ltd | Other services | 2024 |
| Malik GU Cancers Ltd | Health & social care | 2023 |
| Malikpalz Limited | Wholesale & retail | 2025 |
| Malin Solutions Ltd | Information & communication | 2014 |
| Malina Trade LP | | 2017 |
| Malisna Limited | Real estate | 1983 |
| Malkhut Beit Smadar Limited | Real estate | 2019 |
| Mall 13 Property Holdings Limited | Real estate | 2024 |
| Mallaig Property Ltd | Real estate | 2023 |
| Mallard Investments LLP | | 2016 |
| Mallard Title Limited | Professional & scientific | 1997 |
| Mallemack Consulting & Co | | 2007 |
| Malleny Angling Ltd | Agriculture & fishing | 2019 |
| Mallor Investments LP | | 2011 |
| Mallory Bone Limited | Real estate | 2022 |
| Mallow Investments LP | | 2011 |
| Malloy Business LP | | 2016 |
| Malmaison (Aberdeen) Limited | Hospitality | 1990 |
| Malnex Trade LP | | 2017 |
| Maloneview (Sale) Limited | Real estate | 2005 |
| Malosi Properties Ltd | Real estate | 2023 |
| Malt Leith Ltd | Hospitality | 2021 |
| Malt Musketeers Ltd | Wholesale & retail | 2018 |
| Malt Newhaven Ltd | Hospitality | 2018 |
| Malt Shore Ltd. | Hospitality | 2011 |
| Maltby Solutions LP | | 2013 |
| Malton Solutions LP | | 2012 |
| Malva Partners | | 2000 |
| Malvern Leisure Limited | Arts & recreation | 1997 |
| Malyon Group Ltd | Financial services | 2020 |
| Malysa Care Ltd | Health & social care | 2025 |
| MAM Berries Ltd | Wholesale & retail | 2025 |
| Mama Said Group Ltd | Wholesale & retail | 2018 |
| Mama Said Ltd | Extraterritorial | 2010 |
| Mamacitas M.E. Ltd. | Hospitality | 2024 |
| Mamajuana Bars and Restaurants Limited | Hospitality | 2017 |
| Maman EN Mission LP | | 2025 |
| Mamba Sounds Limited | Professional & scientific | 2023 |
| Mambo Bars and Clubs Edinburgh Limited | Hospitality | 2015 |
| Mambo Bars and Clubs Group Limited | Hospitality | 2010 |
| Mamidi Constructions Ltd | Construction | 2025 |
| Mamma CHE Buono Limited | Administrative & support | 2022 |
| Mamma's Pizza Co Ltd. | Hospitality | 1995 |
| Mamora LP | | 2013 |
| Mamore Limited | Hospitality | 2024 |
| Managed Professional Services Limited | Professional & scientific | 2014 |
| Management & Logistic & Consulting LP | | 2017 |
| Management & Marketing Universal Business School LP | | 2013 |
| Management and Financial Consult LP | | 2013 |
| Management Assets LP | | 2015 |
| Management Frontiers Developments Limited | Real estate | 1999 |
| Management Frontiers Limited | Professional & scientific | 1995 |
| Management Global L.P. | | 2011 |
| Management Opportunities Limited | Financial services | 1989 |
| Management Overseas L.P. | | 2009 |
| Management Plus L.P. | | 2014 |
| Management Staff Consultants Ltd. | Administrative & support | 1998 |
| Manager Forge Ltd | Professional & scientific | 2017 |
| Manal Nacef Ltd | Households | 2023 |
| Manaltei Ltd | Health & social care | 2023 |
| Manaswim World LP | | 2026 |
| Manaw Ltd | Construction | 2019 |
| Manbay Homes Limited | Construction | 2019 |
| Manchester Cargo Group LP | | 2016 |
| Manchester Charles Street Residential (SLP GP) Limited | Construction | 2017 |
| Manchester Charles Street Residential Scottish Limited Partnership | | 2017 |
| Manchester Street Food Ltd | Hospitality | 2023 |
| Mancord Sales LP | | 2015 |
| Mandarin Healthcare Communications Ltd | Education | 2022 |