| MMP OFF Licences Limited | Wholesale & retail | 2024 |
| Mmpv Holdings Limited | Financial services | 2019 |
| MMR Aviation Maintenance Ltd | Manufacturing | 2023 |
| MMR Integrated Services Ltd | Manufacturing | 2003 |
| Mmrealty Limited | Real estate | 2024 |
| MMS Distribution Limited | Wholesale & retail | 2005 |
| MMS Exec Search Ltd | Professional & scientific | 2020 |
| MMS Tilly Ltd | Health & social care | 2019 |
| Mmsm Limited | Construction | 2026 |
| MN & AS Investments Ltd | Financial services | 2024 |
| MN Consultancy Leicester Ltd | Professional & scientific | 2020 |
| MN Foods Leicester Ltd | Hospitality | 2025 |
| MN Legal Consultants Limited | Professional & scientific | 2018 |
| MN Operational Services Limited | Administrative & support | 2026 |
| MN Property Holdings Limited | Real estate | 2024 |
| MN Refined Rooms Ltd | Construction | 2025 |
| MN Sevices Go Ltd | Transport & logistics | 2026 |
| MN Taxi Repair Centre Ltd | Wholesale & retail | 2022 |
| MN Trade Hub Ltd | Wholesale & retail | 2026 |
| MN Ventures Ltd | Extraterritorial | 2020 |
| Mn.S Property Development Limited | Real estate | 2022 |
| MNB Conglomerate Limited | Wholesale & retail | 2024 |
| Mnht Ltd | Professional & scientific | 2025 |
| MNJ Meadowcroft News Ltd | Wholesale & retail | 2024 |
| Mnju Limited | Real estate | 2022 |
| MNK Cafe & EAT Ltd | Hospitality | 2022 |
| MNK Optics Limited | Health & social care | 2018 |
| Mnkj Ltd | Real estate | 2026 |
| MNM Capital Limited | Real estate | 2025 |
| MNM Events Ltd | Other services | 2015 |
| MNM Express(Uk) Limited | Transport & logistics | 2026 |
| MNM Financial Ltd | Financial services | 2017 |
| MNM Taxis Ltd | Transport & logistics | 2023 |
| MNR Housing Ltd | Real estate | 2020 |
| MNS Builders (Leicester) Limited | Construction | 2015 |
| MNS Dream Homes (Leicester) Limited | Real estate | 2025 |
| MNS Knitwear GB Ltd | Manufacturing | 2018 |
| Mnspectrumhousing Limited | Real estate | 2017 |
| MO Barbers Leicester Ltd | Other services | 2018 |
| MO Barbers Uppingham Ltd | Other services | 2025 |
| MO Bro's Limited | Wholesale & retail | 2017 |
| MO Desserts Ltd | Hospitality | 2025 |
| MO Elegance Ltd | Wholesale & retail | 2024 |
| MO Enterprise Ltd | Wholesale & retail | 2022 |
| MO Home Improvements Ltd | Construction | 2024 |
| Moatside Gardens Ltd | Wholesale & retail | 2025 |
| Mobc Holdings Limited | Financial services | 2022 |
| Mobhut Leicester Ltd | Wholesale & retail | 2023 |
| Mobiess Ltd | Information & communication | 2009 |
| Mobik Foods Limited | Manufacturing | 2026 |
| Mobik Holdings Limited | Financial services | 2026 |
| Mobik Realty Limited | Real estate | 2026 |
| Mobile Car Bodyworks Ltd | Wholesale & retail | 2013 |
| Mobile Conclusions Ltd | Administrative & support | 2014 |
| Mobile Eyecare Optical Limited | Health & social care | 2015 |
| Mobile Installs Limited | Manufacturing | 2005 |
| Mobile Leather Repairs Limited | Other services | 2023 |
| Mobile Mobility Limited | Wholesale & retail | 2005 |
| Mobile Phonewala Ltd | Wholesale & retail | 2023 |
| Mobile Service & Accessories Ltd | Wholesale & retail | 2023 |
| Mobile Trade Limited | Manufacturing | 2026 |
| Mobile Tyre Leicester Limited | Wholesale & retail | 2023 |
| Mobile Vehicle Services Limited | Wholesale & retail | 2025 |
| Mobile World Leicester Ltd | Wholesale & retail | 2010 |
| MOBILES2GO.COM Ltd | Information & communication | 1999 |
| Mobison UK Integrated Services Ltd | Construction | 2022 |
| Moborn Properties Limited | Real estate | 2014 |
| MOC Healthcare Ltd | Public administration | 2020 |
| MOC Services Limited | Administrative & support | 2026 |
| Mocas Transport Ltd | Transport & logistics | 2025 |
| Mochicare Ltd | Health & social care | 2021 |
| Mochoice Ltd | Wholesale & retail | 2021 |
| Mockbetto Ltd | Professional & scientific | 2025 |
| Mocktail Girl Ltd | Manufacturing | 2024 |
| Mockusdrive Ltd | Transport & logistics | 2024 |
| Moclean Group Ltd | Administrative & support | 2020 |
| Moctan Limited | Professional & scientific | 2024 |
| Moda Plastering Ltd | Construction | 2023 |
| Modamane Ltd | Professional & scientific | 2025 |
| Mode Movement and Mindset CIC | Other services | 2024 |
| Mode Plumbing & Heating Ltd | Construction | 2021 |
| MODE3 Ltd | Information & communication | 2016 |
| Model Looks Ltd | Manufacturing | 2020 |
| Modelage DU Corps Leicester Ltd | Health & social care | 2018 |
| Modera Estates Ltd | Real estate | 2025 |
| Modera Interiors Ltd | Wholesale & retail | 2025 |
| Modern Apartments Ltd | Construction | 2004 |
| Modern Apps Ltd | Information & communication | 2023 |
| Modern Day Bridal & Beauty Ltd | Wholesale & retail | 2023 |
| Modern Design & Interiors Ltd | Manufacturing | 2026 |
| Modern Design Interior Ltd | Manufacturing | 2026 |
| Modern Furniture Outlet Ltd | Wholesale & retail | 2023 |
| Modern Glazing Solutions Ltd | Construction | 2022 |
| Modern Green Naturals Limited | Wholesale & retail | 2015 |
| Modern Homes (Nottingham) Limited | Construction | 1998 |
| Modern Housing (Leicestershire) Limited | Real estate | 2020 |
| Modern Living Improvements Ltd | Construction | 2021 |
| Modern MEN Movement CIC | Health & social care | 2025 |
| Modern Mobility Limited | Extraterritorial | 1998 |
| Modern Properties Limited | Real estate | 1997 |