| MF POD North Hants and East Wilts Ltd | Education | 2025 |
| MF POD North Wiltshire and Gloucestershire Ltd | Education | 2025 |
| MF POD Northamptonshire Ltd | Education | 2025 |
| MF POD Oxfordshire & East Gloucestershire Ltd | Education | 2025 |
| MF POD Oxfordshire East Ltd | Education | 2025 |
| MF POD Oxfordshire Ltd | Education | 2025 |
| MF POD Panels Ltd | Education | 2025 |
| MF POD Reading & Wokingham District Ltd | Education | 2025 |
| MF POD Reading and Woodley Ltd | Education | 2025 |
| MF POD Service Ltd | Professional & scientific | 2022 |
| MF POD South Gloucester & Bristol East Ltd | Education | 2025 |
| MF POD South London Ltd | Education | 2025 |
| MF POD South Midlands Ltd | Education | 2025 |
| MF POD South Oxfordshire & Vales Ltd | Education | 2025 |
| MF POD Swindon Central & Haydon Ltd | Education | 2025 |
| MF POD West Berkshire & Berkshire Ltd | Education | 2025 |
| MF POD West Midlands Ltd | Education | 2025 |
| MF POD West Wiltshire Ltd | Education | 2025 |
| MF POD Wiltshire Ltd | Education | 2025 |
| MF POD Wolverhampton and Dudley Ltd | Education | 2025 |
| MF POD Worcestershire Ltd | Education | 2025 |
| MF Private Finance Ltd | Financial services | 2005 |
| MF Strategic Land Limited | Professional & scientific | 2002 |
| Mfalbert Services Limited | Health & social care | 2026 |
| MFG Construction Limited | Construction | 1997 |
| MFG Property Management Ltd | Real estate | 2023 |
| MFG Transport Consultants Ltd | Transport & logistics | 2025 |
| Mfja Property Development Limited | Real estate | 2023 |
| MFP Building Solutions Limited | Construction | 2022 |
| MFP Wellbeing Services Limited | Health & social care | 2026 |
| MFS Property Ltd | Real estate | 2024 |
| MFX Consulting Services Limited | Information & communication | 2020 |
| MG Global IT Solutions Limited | Wholesale & retail | 2025 |
| MG Iconic Ltd | Real estate | 2023 |
| MG Midland Couriers Ltd | Administrative & support | 2018 |
| MG Software Testing Limited | Information & communication | 2019 |
| MG Solutions (UK) Ltd | Construction | 2012 |
| MGB Building Solutions Ltd | Construction | 2024 |
| MGB Cottages Ltd | Real estate | 2026 |
| Mgbashir Limited | Wholesale & retail | 2023 |
| MGC Caterers Limited | Hospitality | 2024 |
| MGC Motor Company Limited | Wholesale & retail | 2003 |
| Mgcderby Limited | Construction | 2023 |
| Mgetr Limited | Professional & scientific | 2026 |
| MGM Support Services Ltd | Other services | 2014 |
| MGP Cars Derby Limited | Wholesale & retail | 2019 |
| MGS Plumbing & GAS Ltd | Construction | 2019 |
| MGX Motor Finance Ltd | Other services | 2020 |
| MGX Motors Ltd | Wholesale & retail | 2023 |
| MH Artizan Limited | Hospitality | 2025 |
| MH Capital Limited | Real estate | 2018 |
| MH Food LAB Limited | Hospitality | 2026 |
| MH Transport Consultancy Ltd | Professional & scientific | 2024 |
| MH1996 Limited | Health & social care | 2023 |
| MHC (Derby) Limited | Wholesale & retail | 1987 |
| MHD Catering Limited | Hospitality | 2026 |
| Mhden Limited | Health & social care | 2022 |
| Mhih Limited | Real estate | 2024 |
| Mhjb Capital Ltd | Financial services | 2026 |
| MHK General Partner LLP | | 2017 |
| MHK Group United Kingdom LP | | 2017 |
| MHK Holding NO.2 Limited | Financial services | 2017 |
| MHK Holding UK Limited | Manufacturing | 2017 |
| Mhkarim Holdings Ltd | Financial services | 2025 |
| MHL Commercial Limited | Construction | 2022 |
| MHP Management Services Limited | Professional & scientific | 1988 |
| MHS Group Ltd | Financial services | 2020 |
| MHS Shop CIC | Wholesale & retail | 2024 |
| MI Build and Manage Limited | Professional & scientific | 2015 |
| Mi-Phones & Communication Ltd | Wholesale & retail | 2020 |
| MIA Nails Spa Ltd | Other services | 2024 |
| Miah Contractors Ltd | Construction | 2019 |
| Mian JI Brother's Limited | Hospitality | 2025 |
| MIB Engineering Limited | Professional & scientific | 2020 |
| Micael Ltd | Hospitality | 2019 |
| Mich Pisarski Transport Limited | Transport & logistics | 2017 |
| Michael & Family Ltd | Transport & logistics | 2015 |
| Michael David Ward Limited | Transport & logistics | 2005 |
| Michael Del.Fab.Weld Ltd | Transport & logistics | 2024 |
| Michael Evans & Associates Limited | Professional & scientific | 2006 |
| Michael J Bedford Limited | Financial services | 2010 |
| Michael LEE Property Ltd | Real estate | 2021 |
| Michael Pepper Joinery Limited | Manufacturing | 2000 |
| Michael Saint Developments (Retired) Limited | Construction | 2006 |
| Michael Saint Developments Limited | Construction | 1985 |
| Michal Tomas Transport Limited | Transport & logistics | 2018 |
| Michelle Coffey Ltd | Professional & scientific | 2016 |
| Mick Burton Limited | Transport & logistics | 2003 |
| Mick Fell Engineering Limited | Construction | 2011 |
| Mickey Sash Ltd | Wholesale & retail | 2021 |
| MICKKA1117 Ltd | Health & social care | 2019 |
| Mickleover Accountancy Limited | Professional & scientific | 2024 |
| Mickleover Auto Electrical Services Limited | Wholesale & retail | 2023 |
| Mickleover Balti House Ltd | Hospitality | 2024 |
| Mickleover Care Limited | Health & social care | 2026 |
| Mickleover Country Park Social Club Limited | Hospitality | 2008 |
| Mickleover Design Services Ltd | Information & communication | 2016 |
| Mickleover Driving School Ltd | Education | 2021 |
| Mickleover Glass & Glazing Limited | Construction | 2022 |
| Mickleover Holdings Ltd | Financial services | 2026 |