| MH General Services Limited | Other services | 2018 |
| MH Group North Ltd | Hospitality | 2023 |
| MH IT Services Ltd | Information & communication | 2025 |
| MH Jewellery Ltd | Wholesale & retail | 2026 |
| MH Prestige Limited | Wholesale & retail | 2020 |
| MH Restaurant Ltd | Hospitality | 2017 |
| MH Services Bradford Ltd | Transport & logistics | 2022 |
| MH Strategy Solutions Ltd | Information & communication | 2026 |
| MH Supported Homes Ltd | Health & social care | 2025 |
| MH Ventures Ltd | Real estate | 2025 |
| MHA Contracting Ltd. | Administrative & support | 2017 |
| MHA Parcels Ltd | Transport & logistics | 2026 |
| MHA Properties Ltd | Real estate | 2026 |
| Mhasy Ltd | Information & communication | 2020 |
| Mhay Properties Ltd | Real estate | 2025 |
| MHD Global Limited | Financial services | 2018 |
| MHE Bradford Ltd | Hospitality | 2026 |
| MHE Financial Consultancy Limited | Professional & scientific | 2026 |
| Mhflettings Ltd | Real estate | 2025 |
| Mhgt ( Yorks) Limited | Hospitality | 2017 |
| MHJ Logistics Limited | Transport & logistics | 2011 |
| MHK Accountants Limited | Professional & scientific | 2014 |
| MHK Audit Limited | Professional & scientific | 2021 |
| MHK Automotive Limited | Wholesale & retail | 2024 |
| MHK Autos Ltd | Wholesale & retail | 2024 |
| MHK Building Solutions Ltd | Construction | 2021 |
| MHK Consultants Limited | Professional & scientific | 2023 |
| MHK Tax Limited | Professional & scientific | 2020 |
| MHM Global Trading Ltd | Wholesale & retail | 2023 |
| MHM International Ltd | Wholesale & retail | 2020 |
| MHM Logistics Limited | Wholesale & retail | 2024 |
| MHM Universal Ltd | Wholesale & retail | 2025 |
| Mhmd Consultants Ltd | Professional & scientific | 2017 |
| Mhmk Properties Ltd | Real estate | 2025 |
| Mhpc Bars Ltd | Hospitality | 2026 |
| Mhr-Zara Ltd | Health & social care | 2022 |
| MHS 2 Ltd | Wholesale & retail | 2025 |
| MHS Hub Ltd | Manufacturing | 2025 |
| MHV Electrical Limited | Construction | 2020 |
| Mhyh Limited | Households | 2025 |
| MHZ Scrap Metal Ltd | Water & waste | 2025 |
| MI Amore Clothing Ltd | Wholesale & retail | 2023 |
| MI Car Clinic Ltd | Wholesale & retail | 2024 |
| MI Investco Ltd | Real estate | 2025 |
| MI Khaliq Ltd | Financial services | 2017 |
| MI Lakhi Limited | Health & social care | 2010 |
| MI Minerals Limited | Wholesale & retail | 2024 |
| MI Painting and Decorating Ltd | Construction | 2025 |
| MI Periodontist Limited | Health & social care | 2017 |
| MI Property Management (Yorkshire) Ltd | Real estate | 2025 |
| MI29 Limited | Financial services | 2020 |
| MIA Logistic Ltd | Transport & logistics | 2023 |
| MIA Parcelnet Ltd | Transport & logistics | 2025 |
| MIA Property Mgmt Ltd | Households | 2026 |
| Miah Travel Hub Limited | Administrative & support | 2024 |
| Miami Heat (YS) Ltd | Other services | 2022 |
| Mibelle Ltd | Manufacturing | 2005 |
| MIC Accounting Limited | Professional & scientific | 2022 |
| MIC MAC Services Ltd | Information & communication | 2013 |
| Micas Romanian Shop Ltd | Wholesale & retail | 2023 |
| Micghall Construction Ltd | Construction | 2024 |
| Michael Gilbson & Company Ltd | Manufacturing | 2023 |
| Michael Muff Design Limited | Professional & scientific | 2025 |
| Michalkanalos Ltd | Administrative & support | 2025 |
| Michelangelo Constructions Ltd | Construction | 2018 |
| Micklethwaite Investments Ltd | Real estate | 2024 |
| Micklethwaite Limited | Real estate | 2025 |
| Micro-Tech Computer Services Limited | Administrative & support | 1997 |
| Microchem Foods Limited | Agriculture & fishing | 2019 |
| Micron (International) Limited | Construction | 2013 |
| Micron Hydraulics Holdings Limited | Professional & scientific | 2002 |
| Micron Hydraulics Limited | Construction | 1984 |
| Micron Networks Limited | Information & communication | 2016 |
| Micron VH Limited | Construction | 2019 |
| Microtek (UK) Limited | Information & communication | 2004 |
| Microtek SW Limited | Information & communication | 2019 |
| MID Systems Limited | Financial services | 2012 |
| Midas Paper Converters Limited | Manufacturing | 2001 |
| Middleton Elliott Moore Engineering Limited | Administrative & support | 1997 |
| Midgesmunchies Ltd | Wholesale & retail | 2026 |
| Midh International Limited | Administrative & support | 2018 |
| Midland Surveying Limited | Professional & scientific | 2021 |
| Midlands Autohouse Limited | Administrative & support | 2020 |
| Midlands Surfacing Contractors Ltd | Construction | 2019 |
| Midlands Trade Group Limited | Wholesale & retail | 2026 |
| Midpoint Estates Ltd | Real estate | 2020 |
| Midpoint Event Management Limited | Hospitality | 2025 |
| Mien Ltd | Real estate | 2014 |
| Mien Management Ltd | Professional & scientific | 2017 |
| Mien Retail Ltd | Hospitality | 2015 |
| MIF Group Ltd | Professional & scientific | 2024 |
| MIF Pharma Ltd | Health & social care | 2025 |
| Miftaah Limited | Wholesale & retail | 2025 |
| Mighty Fast Painters and Decorators Ltd | Construction | 2023 |
| MIH Investments Limited | Real estate | 2020 |
| MII Skyn Ltd | Other services | 2021 |
| Miish UN Ltd | Wholesale & retail | 2025 |
| MIK Impex Limited | Wholesale & retail | 2019 |
| Mikail Consultancy Limited | Other services | 2020 |
| Mike&Dan Ltd | Transport & logistics | 2024 |