| Minerva Risk Consulting Partnership Limited | Professional & scientific | 2015 |
| Minerva Star Ltd | Financial services | 2026 |
| Minev Construction Services Ltd | Construction | 2024 |
| Minhas Holding Limited | Real estate | 2025 |
| Mini Minds Co Limited | Wholesale & retail | 2025 |
| Mining Consulting Ltd | Real estate | 2008 |
| Minka Ventures Limited | Real estate | 2022 |
| Minnaltech Limited | Information & communication | 2012 |
| Minnie Minors Ltd | Wholesale & retail | 2025 |
| Minoxidil World Ltd | Wholesale & retail | 2019 |
| Minso Ltd | Wholesale & retail | 2026 |
| Mint Furniture & Appliances Ltd | Wholesale & retail | 2022 |
| Mint Journeys Limited | Transport & logistics | 2025 |
| Mint&Paisley Ltd | Households | 2021 |
| Mintcode Technologies Limited | Information & communication | 2022 |
| Mintmelody Ltd | Hospitality | 2024 |
| Minuscule Technologies Limited | Information & communication | 2025 |
| Minzel Homes Ltd | Households | 2025 |
| Miquel Service Ltd | Administrative & support | 2017 |
| MIR Cars London Ltd | Wholesale & retail | 2020 |
| Mira Enterprise Ltd | Real estate | 2023 |
| Mira Property Investment Limited | Real estate | 2021 |
| Miraal Limited | Wholesale & retail | 2025 |
| Mirace Limited | Real estate | 2015 |
| Miracle Estates Properties Ltd | Real estate | 2024 |
| Mirage Contracts (UK) Limited | Construction | 2008 |
| Mirage Events & Planners Ltd | Administrative & support | 2019 |
| Mirage Property Ltd | Real estate | 2026 |
| Miraj & Sons Properties Ltd | Real estate | 2021 |
| Miraj Enterprises Limited | Professional & scientific | 2025 |
| Miraj Pharma Limited | Wholesale & retail | 2010 |
| Miraj Promotions Limited | Information & communication | 2022 |
| Mirdif Legal Limited | Professional & scientific | 2026 |
| Mirel Solutions Ltd | Construction | 2024 |
| Mirha Limited | Real estate | 2020 |
| Miricharis Ltd | Water & waste | 2017 |
| Miriyam Convenience Store Ltd | Information & communication | 2026 |
| Mirkwood Ltd | Agriculture & fishing | 2022 |
| Miro 80 Ltd | Construction | 2015 |
| Miron Business Limited | Construction | 2025 |
| Miron Construction Quality FIX Ltd | Construction | 2024 |
| Mirpuri Mansion Properties Ltd | Households | 2013 |
| Mirza and Hall Limited | Administrative & support | 2022 |
| Mirza Contracting Ltd | Financial services | 2012 |
| Mirza Imran Tech Ltd | Wholesale & retail | 2025 |
| Mirzars Ltd | Administrative & support | 2012 |
| Misbah Jabeen Ltd | Wholesale & retail | 2024 |
| Mish Home Limited | Wholesale & retail | 2020 |
| Misha Homes Ltd | Real estate | 2025 |
| Misha Trading Ltd | Wholesale & retail | 2006 |
| Mishfaz Ltd | Wholesale & retail | 2022 |
| Mishra Technologies Limited | Information & communication | 2009 |
| Misia Global Limited | Information & communication | 2022 |
| Mismar Property Investment LLP | | 2018 |
| Misq Perfumes Ltd | Wholesale & retail | 2025 |
| Misri Enterprises Ltd | Transport & logistics | 2023 |
| Miss Chief Limited | Wholesale & retail | 2025 |
| Miss Demo Limited | Other services | 2019 |
| Miss Shorthair Ltd | Wholesale & retail | 2011 |
| Mission Exhale CIC | Education | 2024 |
| Mission Recruitment Ltd | Real estate | 2023 |
| Misson Design and Build Ltd | Construction | 2024 |
| Missy One UK Limited | Wholesale & retail | 2018 |
| Missy Trading Limited | Real estate | 2026 |
| Mist PVT Ltd | Wholesale & retail | 2026 |
| Mister SIK Finance Ltd | Information & communication | 2016 |
| Mistral London Limited | Administrative & support | 2011 |
| Mistral London Maintenance Limited | Construction | 2018 |
| Mistrika Limited | Other services | 2023 |
| Mistry & Parmar Investment Management Limited | Real estate | 2016 |
| Mistry Solutions (UK) Limited | Information & communication | 2006 |
| MIT Stone Ltd | Construction | 2015 |
| Mitch Interiors Ltd | Construction | 2015 |
| Mitcham Properties Ltd | Real estate | 2016 |
| Mithai House London Limited | Wholesale & retail | 2026 |
| Mithai TE Coffee Ltd | Hospitality | 2024 |
| Miti Marketing Limited | Professional & scientific | 2025 |
| Mitro Sports Limited | Wholesale & retail | 2016 |
| Mitsrx Limited | Health & social care | 2013 |
| Mitsu Ltd | Information & communication | 2019 |
| Mittal Saraf Limited | Health & social care | 2014 |
| Mittayi.Co Ltd | Hospitality | 2025 |
| MIU Group Ltd | Construction | 2021 |
| Mivee Limited | Financial services | 2010 |
| Mixala Ltd | Manufacturing | 2023 |
| Mixari Limited | Wholesale & retail | 2025 |
| Mixora Luxe Ltd | Wholesale & retail | 2025 |
| MIY Housing Group Ltd | Real estate | 2025 |
| Miya Ella Ltd | Real estate | 2021 |
| Miyan Ltd | Wholesale & retail | 2025 |
| MIZ Group Enterprises Ltd | Wholesale & retail | 2026 |
| MJ Accountants (London) Ltd. | Professional & scientific | 2022 |
| MJ Beauty Brow Ltd | Other services | 2024 |
| MJ Dental Associates Ltd | Health & social care | 2014 |
| MJ Distributions Ltd | Wholesale & retail | 2026 |
| MJ Eagle Canterbury Ltd | Real estate | 2024 |
| MJ General Builders & Decorators Limited | Construction | 2008 |
| MJ Partnership Holdings Limited | Real estate | 2022 |
| MJ Planning Design & Build Ltd | Professional & scientific | 2018 |
| MJ Property Investments UK Limited | Real estate | 2015 |