| Mobichanic Ltd | Wholesale & retail | 2020 |
| Mobichem UK Ltd | Manufacturing | 2024 |
| Mobile Clinic L1 Ltd | Wholesale & retail | 2023 |
| Mobile and Accessories Liverpool Ltd | Wholesale & retail | 2024 |
| Mobile Digital Media Ltd. | Professional & scientific | 2017 |
| Mobile Fone Clinic Ltd | Wholesale & retail | 2023 |
| Mobile GIS Services Limited | Wholesale & retail | 2011 |
| Mobile HUT Liverpool Ltd | Other services | 2020 |
| Mobile Phone Express Communication Ltd | Wholesale & retail | 2011 |
| Mobile Repair Skills Training Agency | Education | 2017 |
| Mobile Traffic Walton Ltd | Wholesale & retail | 2023 |
| MOBILE2COMPUTERS Limited | Wholesale & retail | 2026 |
| Mobilezoneliverpool Limited | Wholesale & retail | 2018 |
| Mobility Living Centre Limited | Extraterritorial | 2015 |
| Mobiwood Limited | Construction | 2016 |
| Mobooks Limited | Other services | 2022 |
| Mocadina Trans Limited | Transport & logistics | 2025 |
| Mocha Productions Holdings Limited | Financial services | 2017 |
| Mochasons Ltd | Wholesale & retail | 2021 |
| Mocore Ltd | Wholesale & retail | 2025 |
| MOD Waste Management Ltd | Water & waste | 2022 |
| Moda Bandidos Limited | Wholesale & retail | 2019 |
| Moda DI Lusso Ltd | Wholesale & retail | 2025 |
| Moda Estates Ltd | Real estate | 2024 |
| Moda Hair & Beauty Ltd | Other services | 2021 |
| Moda Management Global Ltd | Other services | 2023 |
| Moda Renovations Ltd | Construction | 2022 |
| Modali Design Ltd | Construction | 2022 |
| Modality Learning Ltd | Education | 2026 |
| Modaux Ltd | Extraterritorial | 2022 |
| Mode Event Presents Limited | Arts & recreation | 2020 |
| Mode Training Ltd | Education | 2000 |
| Model Asset Management Ltd | Administrative & support | 2022 |
| Model Corporation Limited | Administrative & support | 2001 |
| Model Land and Property Company Limited(The) | Real estate | 1902 |
| Modena Steelfix Limited | Construction | 2024 |
| Modera Living Ltd | Construction | 2025 |
| Modern Ceilings Limited | Construction | 2009 |
| Modern Homecraft Ltd | Construction | 2025 |
| Modern Homes Design Ltd | Construction | 2017 |
| Modern Hygiene (1992) Limited | Construction | 2000 |
| Modern Hygiene Environmental Limited | Administrative & support | 2004 |
| Modern Kitchen Equipment Limited | Wholesale & retail | 2013 |
| Modern Living Real Estate Ltd | Real estate | 2021 |
| Modern Mammoth Ltd | Professional & scientific | 2022 |
| Modern Polymath Limited | Information & communication | 2014 |
| Modern Sky Entertainment (UK) Limited | Arts & recreation | 2016 |
| Modern Slavery Community of Practice CIC | Professional & scientific | 2025 |
| Modern Structures Construction Ltd | Professional & scientific | 2019 |
| Modo Retail Ltd | Information & communication | 2025 |
| Modpaper AI Ltd | Information & communication | 2024 |
| Modular Electrical Services Limited | Construction | 2016 |
| Modus WM Limited | Financial services | 2020 |
| Modwens Property Management Limited | Real estate | 2006 |
| Mody Mobile Ltd | Wholesale & retail | 2025 |
| Moffatt & Cooke Associates Ltd | Professional & scientific | 2025 |
| Moffatt Business Services Limited | Professional & scientific | 2016 |
| Moffett Properties Ltd | Real estate | 2020 |
| Mofs (Holdings) Limited | Financial services | 2021 |
| Mogenet Ventures Ltd | Professional & scientific | 2025 |
| Mogg and Landy Tuition Ltd | Education | 2023 |
| Mohassine Transport Limited | Transport & logistics | 2026 |
| MOI Bakeshop Fact Ltd | Hospitality | 2024 |
| MOI Bakeshop Limited | Manufacturing | 2021 |
| Moig Limited | Financial services | 2021 |
| Moiim Korean Limited | Hospitality | 2022 |
| Moiim Ltd | Hospitality | 2026 |
| Mojo Direct Ltd | Wholesale & retail | 2023 |
| Mojo Restaurants Limited | Hospitality | 2009 |
| Mojoe's Limited | Hospitality | 2006 |
| Mokay Trading Limited | Professional & scientific | 2020 |
| Mokha House UK Limited | Hospitality | 2025 |
| Mokka Development Services UK Limited | Real estate | 2017 |
| Moksi Ltd | Professional & scientific | 2023 |
| Molcat Salutation PUB Limited | Hospitality | 2025 |
| Mold Car Wash Limited | Other services | 2017 |
| Mole Ventures Ltd | Financial services | 2025 |
| Molecular Sense Ltd | Information & communication | 2011 |
| Moll & Joel's Rolls Ltd | Hospitality | 2024 |
| Mollev Projects Ltd | Information & communication | 2023 |
| Mollie Cosmetics Ltd. | Wholesale & retail | 2016 |
| Mollie Traynor Ltd | Professional & scientific | 2019 |
| Moltené Ltd | Hospitality | 2025 |
| Molyneux 26 Ltd | Hospitality | 2020 |
| Molyneux Developments Ltd | Construction | 2022 |
| Molyneux Maintenance NW Ltd | Households | 2023 |
| Molyneux Mutts Limited | Professional & scientific | 2017 |
| Moment Digital Media Ltd | Professional & scientific | 2025 |
| Momentous Property Group Ltd | Real estate | 2019 |
| Momentum Advise Ltd | Professional & scientific | 2018 |
| Momentum Architecture Ltd | Professional & scientific | 2021 |
| Momentum Build (NW) Ltd | Construction | 2018 |
| Momentum Expedite Consultancy Ltd | Professional & scientific | 2011 |
| Momentum Flooring Services Limited | Construction | 2012 |
| Momentum FM Ltd | Real estate | 2018 |
| Momentum Group (NW) Ltd | Professional & scientific | 2020 |
| Momentum Mgmt Limited | Professional & scientific | 2025 |
| Momentum Money Ltd | Financial services | 2026 |
| Momentum Property Management Ltd | Real estate | 2018 |
| Momo Cars Sale Ltd | Wholesale & retail | 2025 |