| Manchester Wilmslow Limited | Hospitality | 2021 |
| Manchester Windows Ltd | Construction | 2013 |
| Mandison Industries Ltd | Manufacturing | 2022 |
| Mane Energy Ltd | Manufacturing | 2023 |
| Manerian Limited | Wholesale & retail | 2023 |
| Mangla Auto Centre Limited | Wholesale & retail | 2018 |
| Mangla Catering Bradford Ltd | Hospitality | 2025 |
| Mangla Hall Developments Ltd | Construction | 2026 |
| Mangla Jewellers Limited | Manufacturing | 2016 |
| Mangla Motors Ltd | Wholesale & retail | 2026 |
| Mangla Private Hire Ltd | Administrative & support | 2023 |
| Mani's Clothing Ltd | Wholesale & retail | 2025 |
| Mania PVT Ltd | Wholesale & retail | 2017 |
| Manjari Festive Collections Limited | Wholesale & retail | 2026 |
| Manjot Heer Construction Ltd | Construction | 2024 |
| Manlikemarketing Limited | Professional & scientific | 2025 |
| Mann Made Projects Limited | Construction | 2025 |
| Manna Holdings Limited | Professional & scientific | 1999 |
| Mannat Gift Shop Ltd | Wholesale & retail | 2026 |
| Mannat’S Land Ltd | Wholesale & retail | 2024 |
| Mannigham Hand Car Wash Ltd | Administrative & support | 2026 |
| Manningham Auto Works Limited | Wholesale & retail | 2016 |
| Manningham Business Centre Ltd | Administrative & support | 2022 |
| Manningham Concrete Limited | Wholesale & retail | 1963 |
| Manningham Garden Centre Limited | Wholesale & retail | 2018 |
| Manningham Healthcare Ltd | Wholesale & retail | 2018 |
| Manningham Hospitality Ltd | Hospitality | 2026 |
| Manningham Ltd | Construction | 2020 |
| Manningham Mills Sports & Community Association Limited | Education | 2004 |
| Manningham Networks Ltd | Professional & scientific | 2016 |
| Manningham Poultry Ltd | Wholesale & retail | 2013 |
| Manningham Tutors Ltd | Education | 2025 |
| Manoosha Collection Ltd | Wholesale & retail | 2025 |
| Manor Croft Management Company Limited | Households | 2000 |
| Manor House Hospitality Limited | Real estate | 2023 |
| Manor Lets Ltd | Real estate | 2026 |
| Manor Paper Supplies Ltd | Manufacturing | 2013 |
| Manor ROW Legal Ltd | Professional & scientific | 2025 |
| Manor ROW Management Ltd | Real estate | 2018 |
| Manor ROW Properties Ltd | Real estate | 2026 |
| Manor ROW Restaurant Ltd | Hospitality | 2025 |
| Manormead Limited | Hospitality | 1999 |
| Manq Ltd | Wholesale & retail | 2022 |
| Manr Properties Limited | Real estate | 2026 |
| Mansell Licensing Limited | Extraterritorial | 1933 |
| Mansfield Pollard (Holdings) Limited | Professional & scientific | 2010 |
| Mansfield Pollard Group Limited | Financial services | 2020 |
| Mansfield, Pollard & Co. Limited | Manufacturing | 1914 |
| Mansion Estates Ltd | Real estate | 2006 |
| Mantanere Ltd | Hospitality | 2026 |
| Mantoré Ltd | Wholesale & retail | 2025 |
| Manuke Design & Development Ltd | Construction | 2025 |
| Manulacatus Ltd | Transport & logistics | 2025 |
| Manus Salutis Limited | Financial services | 2026 |
| Manyacommerce Ltd | Wholesale & retail | 2025 |
| Manywells Car Sales Ltd | Wholesale & retail | 2019 |
| Manywells Court Management Company (2010) Limited | Households | 2010 |
| Manywells Management Limited | Households | 2024 |
| Manzil Aman Limited | Households | 2019 |
| Manzil Balti House Ltd | Hospitality | 2019 |
| Manzil Balti Ltd | Hospitality | 2025 |
| Manzil Property Management Limited | Real estate | 2016 |
| Maple Cleaning Services Limited | Hospitality | 2001 |
| Maple Court Properties Limited | Real estate | 1996 |
| Maple Gardens Yorkshire Limited | Administrative & support | 2026 |
| Maple Inns Limited | Hospitality | 2025 |
| Maple Professional Services Limited | Health & social care | 2023 |
| MAQ Developments Ltd | Construction | 2023 |
| MAQ Yorkshire Ltd | Manufacturing | 2024 |
| Maqsoodshan Ltd | Wholesale & retail | 2025 |
| MAR Healthcare Services Limited | Health & social care | 2017 |
| MAR1914 Ltd | Transport & logistics | 2021 |
| Marbella Resort and Spa Limited | Professional & scientific | 2013 |
| Marble Creations Ltd | Construction | 2006 |
| Marblecover Limited | | 1988 |
| Marca Motors Ltd | Wholesale & retail | 2025 |
| March Mcloughlin Limited | Professional & scientific | 2019 |
| Marcin Olow Ltd | Transport & logistics | 2016 |
| Marcinex Logistics Ltd | Transport & logistics | 2019 |
| Marco Bros Heating & Plumbing Limited | Construction | 2021 |
| Marco Cars Ltd | Wholesale & retail | 2019 |
| Marco Polo Pubs Ltd | Hospitality | 2016 |
| MARCONST4U Ltd | Construction | 2023 |
| Marcus Edwards Upvc Limited | Other services | 2019 |
| Marek Gospodarczyk Transport Ltd. | Transport & logistics | 2016 |
| Marelbarodi Limited | Health & social care | 2020 |
| Mareya Ltd | Real estate | 2021 |
| Margopol Poland Ltd | Transport & logistics | 2018 |
| Maria Khaliq Ltd | Administrative & support | 2019 |
| Mariam Trading Ltd | Other services | 2019 |
| Mariarajaholding Limited | Wholesale & retail | 2025 |
| Maria’S Collections Limited | Wholesale & retail | 2026 |
| Marid Business Consulting Ltd | Professional & scientific | 2024 |
| Marie & V'S Cafe Ltd | Hospitality | 2026 |
| Marie a Properties Renovation Limited | Construction | 2023 |
| Marimax Motors Ltd | Wholesale & retail | 2024 |
| Marin Developments Limited | Real estate | 2017 |
| Marina Shehriyar Limited | Administrative & support | 2014 |
| Marina View Facilities Ltd | Households | 2022 |
| Marine Landscapes Groundworks Limited | Administrative & support | 2024 |