| Millenium Hotels Ltd | Hospitality | 2018 |
| Millenium One Properties Ltd | Real estate | 2025 |
| Millenium Properties Holding Ltd | Real estate | 2025 |
| Millennial Investments Limited | Financial services | 2016 |
| Millennium Drinks Limited | Hospitality | 2025 |
| Millridge Rentals Limited | Real estate | 2023 |
| MIM UK Properties Ltd | Real estate | 2024 |
| Mimausa Films Limited | Information & communication | 2023 |
| MIN Aesthetics Ltd | Health & social care | 2022 |
| MIND2MIND Limited | Information & communication | 2013 |
| Mindscope Ltd | Professional & scientific | 2022 |
| Mindsource Ltd | Information & communication | 2023 |
| Mindtree IT Solutions Ltd | Information & communication | 2015 |
| Minglemission Ltd | Other services | 2026 |
| Minhas Property Limited | Real estate | 2025 |
| Mini Star Property Management Ltd | Real estate | 2025 |
| Minicabers Ltd | Transport & logistics | 2025 |
| Minjal Limited | Wholesale & retail | 2015 |
| Mino Travels Ltd | Transport & logistics | 2026 |
| Minoffles Ltd | Administrative & support | 2017 |
| Minra Gymnastics Club Ltd | Other services | 2022 |
| Minsva Limited | Construction | 2015 |
| Mint Homes Solutions Ltd | Households | 2018 |
| Mirabel Clean Construct Ltd | Administrative & support | 2019 |
| Miracle Legal Ltd | Professional & scientific | 2024 |
| Miracles of Angels Property Limited | Real estate | 2024 |
| Mirae Medical Limited | Other services | 2015 |
| Mirisa Kitchen Limited | Hospitality | 2023 |
| Mirthika Interiors Ltd | Professional & scientific | 2025 |
| Mirza Khan Creations Ltd | Wholesale & retail | 2025 |
| Miss Look Sexy Limited | Wholesale & retail | 2019 |
| Miss Padma Pathi Ltd | Health & social care | 2011 |
| Misskaurstudio Ltd | Other services | 2025 |
| Missohio Studio Ltd | Arts & recreation | 2023 |
| Mister Mobile Limited | Wholesale & retail | 2025 |
| Misty Cloud Ltd | Wholesale & retail | 2025 |
| Mitchell's Europe Limited | Hospitality | 2011 |
| Mitm Services Ltd | Wholesale & retail | 2023 |
| Mitsuryu Limited | Hospitality | 2019 |
| Mittapally Consulting Limited | Information & communication | 2014 |
| Mixease Limited | Information & communication | 2024 |
| MIY Distribution Limited | Wholesale & retail | 2019 |
| MJ Caters UK Limited | Hospitality | 2026 |
| MJ Star Investments Ltd | Wholesale & retail | 2022 |
| MJ Top Project Ltd | Construction | 2019 |
| MJ Zameree Limited | Wholesale & retail | 2021 |
| MJJ Properties Limited | Real estate | 2023 |
| MK and Sons Investments Limited | Real estate | 2021 |
| MK Business Partners Ltd | Wholesale & retail | 2022 |
| MK Dhot Trader Limited | Construction | 2020 |
| MK Drylining Limited | Construction | 2023 |
| MK Industries Ltd | Wholesale & retail | 2025 |
| MK Premier Ltd | Wholesale & retail | 2022 |
| MK UK Security Services Ltd | Administrative & support | 2025 |
| MK V 1 Ltd | Real estate | 2024 |
| MKD Beauty Limited | Other services | 2019 |
| MKG Estates Limited | Real estate | 2003 |
| MKH Real Estate Limited | Real estate | 2020 |
| MKK Multydistributions Limited | Wholesale & retail | 2026 |
| MKN Construction Ltd | Construction | 2019 |
| MKS Beauty Ltd | Other services | 2023 |
| MKS Technologies Ltd | Information & communication | 2025 |
| Mleczko Delikatesy Limited | Wholesale & retail | 2010 |
| MM Car Hire Ltd | Administrative & support | 2020 |
| MM Corporate Ltd | Transport & logistics | 2022 |
| MM Nurseries Ltd | Health & social care | 2022 |
| MM Plumbing and Electrical Services Ltd | Construction | 2024 |
| MMA Global Limited | Arts & recreation | 2025 |
| MMC Global Tech Limited | Information & communication | 2012 |
| Mmcarvl Ltd | Real estate | 2026 |
| MMG Accounting Limited | Professional & scientific | 2023 |
| Mmnscb Ltd | Health & social care | 2023 |
| MMS Expedition Ltd | Transport & logistics | 2021 |
| MMS Stylo Ltd | Construction | 2024 |
| Mmst Ltd | Transport & logistics | 2019 |
| MNA PVT Limited | Wholesale & retail | 2024 |
| MNB Enterprises Ltd | Wholesale & retail | 2024 |
| MND Logistics Ltd | Transport & logistics | 2023 |
| MNK Property Management Ltd | Real estate | 2025 |
| MNS & Son's Ltd | Construction | 2015 |
| MNS Motors Ltd | Wholesale & retail | 2019 |
| Mnss Consultants Ltd | Professional & scientific | 2023 |
| MNZ Nexus Limited | Wholesale & retail | 2025 |
| Mn’S Consultancy Ltd | Professional & scientific | 2023 |
| MO Global Ltd | Wholesale & retail | 2026 |
| MO Javed Ltd | Professional & scientific | 2017 |
| Moak Ltd | Construction | 2025 |
| Mobex Power Ltd | Wholesale & retail | 2026 |
| Mobi Hub International Limited | Information & communication | 2017 |
| Mobile Car Doctor Ltd | Wholesale & retail | 2025 |
| Mobile Phone Enterprise Ltd | Wholesale & retail | 2019 |
| Mobile Spot Limited | Other services | 2012 |
| Mobile Tyre Experts 24*7 Ltd | Wholesale & retail | 2024 |
| Mobility Cutz Limited | Other services | 2018 |
| Mocanu Road Ltd | Transport & logistics | 2019 |
| Moda Italiana Investments Ltd | Wholesale & retail | 2026 |
| Modern Double Glazing Ltd | Construction | 2026 |
| Modern Retail UK Limited | Wholesale & retail | 2018 |
| Modern Sanitary Ware Limited | Wholesale & retail | 2025 |
| Modernhue Ltd | Real estate | 2023 |