| Modev Support Services Ltd | Administrative & support | 2023 |
| Modha & Co Estates Ltd | Real estate | 2023 |
| Modhu Property Management Ltd | Real estate | 2024 |
| Modhu Z Fashion Limited | Wholesale & retail | 2024 |
| Modify Crafts Ltd | Wholesale & retail | 2024 |
| Modis Construction Ltd | Construction | 2012 |
| Modmed Limited | Other services | 2024 |
| Modus Capital Finance Limited | Financial services | 2016 |
| Modus Infrastructure Limited | Financial services | 2025 |
| Modus Maths Ltd | Education | 2026 |
| Modus Venture Finance Ltd | Real estate | 2016 |
| MOE Property Investments Limited | Real estate | 2026 |
| Moela Beauty Limited | Wholesale & retail | 2023 |
| Moela Group Limited | Wholesale & retail | 2019 |
| Mofred Estates Limited | Real estate | 2017 |
| Mogal Pratap Kilburn Ltd | Hospitality | 2026 |
| Mogul Enterprise Ltd | Extraterritorial | 2024 |
| Mogyor Ltd | Construction | 2023 |
| MOH Investment Ltd | Real estate | 2012 |
| Mohaco Engineering Services Limited | Other services | 2014 |
| Mohammad Miah & Co. Limited | Professional & scientific | 2003 |
| Mohammadi Halal Meat Ltd | Wholesale & retail | 2025 |
| Mohammed Ipaf Holder Limited | Construction | 2015 |
| Mohan Realtors Ltd | Real estate | 2021 |
| Mohi Shop Limited | Wholesale & retail | 2025 |
| Mohis Cafe & Crafts Ltd | Hospitality | 2024 |
| Mohit Kumar Ltd | Construction | 2024 |
| Mohit Mohit Ltd | Wholesale & retail | 2023 |
| Mohsin Siddiqi Consulting Services Ltd | Professional & scientific | 2018 |
| Moien Wafa Consulting Limited | Information & communication | 2014 |
| Moin Builders Limited | Construction | 2013 |
| Moiz Enterprises Limited | Manufacturing | 2025 |
| Moiz Limited | Wholesale & retail | 2020 |
| Mojo Vehicle Solutions Ltd | Wholesale & retail | 2021 |
| Mojosh Ltd | Real estate | 2025 |
| Moju Trading Ltd | Hospitality | 2020 |
| Mokal Carpets and Flooring Ltd | Wholesale & retail | 2026 |
| Mokk Dryliner Ltd | Construction | 2019 |
| Moko Samesh Limited | Information & communication | 2024 |
| Moksha Groups Private Limited | Hospitality | 2024 |
| Molad Ltd | Other services | 2026 |
| Moldmix Ltd | Wholesale & retail | 2025 |
| Moldovan Industries Ltd | Wholesale & retail | 2025 |
| Mollah Trades Limited | Hospitality | 2022 |
| Molo Holdings Ltd | Other services | 2016 |
| Molonlaveconstruction Ltd | Construction | 2023 |
| Molstar Construction Ltd | Construction | 2023 |
| MOM Properties London Ltd | Real estate | 2022 |
| Moments London Ltd | Manufacturing | 2019 |
| Momentum Consultants Limited | Administrative & support | 2026 |
| Momentum Facility Management Limited | Administrative & support | 2025 |
| Momentum Property Group Limited | Households | 2024 |
| Momi Estates Ltd | Real estate | 2025 |
| Momina Bilal Medical Locums Ltd | Health & social care | 2018 |
| Momoh KC Ltd | Hospitality | 2024 |
| Momolio Limited | Wholesale & retail | 2025 |
| Momolio Retail Ltd | Wholesale & retail | 2025 |
| Monaco Estates Ltd | Real estate | 2019 |
| Monal Restaurant London Ltd | Hospitality | 2024 |
| Monapin Ltd | Wholesale & retail | 2023 |
| Monarch Investments Limited | Professional & scientific | 2016 |
| Monas Investments Limited | Financial services | 2020 |
| Monash Bright Star Limited | Hospitality | 2023 |
| Monash Enterprises Limited | Hospitality | 2011 |
| Monash Real Estate Limited | Real estate | 2022 |
| Monash Technologies Limited | Information & communication | 2025 |
| Monaz Care Limited | Health & social care | 2024 |
| Monday Born Productions Limited | Information & communication | 2025 |
| Monee Ltd | Transport & logistics | 2023 |
| Monero Exchanges Ltd | Financial services | 2023 |
| Moneta Direct Ltd | Wholesale & retail | 2022 |
| Monetize AD Solutions Limited | Wholesale & retail | 2023 |
| Money Brick Investment Ltd | Construction | 2021 |
| Money Inns Ltd | Hospitality | 2018 |
| Money Links International Ltd | Financial services | 2019 |
| Moneyfy Ltd | Administrative & support | 2024 |
| Moni's Shop Ltd | Wholesale & retail | 2015 |
| Monihar Ltd | Hospitality | 2016 |
| Monik Properties Ltd | Education | 2018 |
| Monika Saini Ltd | Administrative & support | 2025 |
| Monisami Ltd | Transport & logistics | 2018 |
| Monk & Turner Ltd | Professional & scientific | 2016 |
| Monk and Garg Capital Limited | Financial services | 2021 |
| Monkey Kingdom Essex Ltd | Arts & recreation | 2024 |
| Mono Tech Accessories Ltd | Wholesale & retail | 2026 |
| Monolith Black Limited | Real estate | 2019 |
| Monolithex Limited | Information & communication | 2025 |
| Monomart Limited | Wholesale & retail | 2025 |
| Monovian Limited | Professional & scientific | 2015 |
| Monserat London Ltd | Wholesale & retail | 2023 |
| Monsoon Property Housing Services Ltd | Real estate | 2016 |
| Monsoor's Ltd | Wholesale & retail | 2019 |
| Monsta Wear Ltd | Administrative & support | 2024 |
| Monster Construction Limited | Construction | 2012 |
| Mont Resources Limited | Professional & scientific | 2015 |
| Mont Rose College of Management and Sciences Limited | Education | 2006 |
| Montagu One Limited | Real estate | 2013 |
| Montague Care Ltd | Health & social care | 2024 |
| Montague Mason Solicitors Ltd | Professional & scientific | 2007 |
| Montana Motors Limited | Wholesale & retail | 2017 |