| Mini Grosik Ltd | Wholesale & retail | 2024 |
| Mini Mark Tech Ltd | Information & communication | 2018 |
| Mini Market Leicester Ltd | Wholesale & retail | 2025 |
| Mini Mischief's (Market Harborough) Limited | Other services | 2012 |
| Mini Muslims Club Ltd | Wholesale & retail | 2026 |
| Mini OFF License Ltd | Wholesale & retail | 2021 |
| Mini Souk Ltd | Wholesale & retail | 2025 |
| Mini Stream LET Limited | Real estate | 2024 |
| Mini Supermarket Leicester Ltd | Wholesale & retail | 2025 |
| Mini Tudor Grocery Ltd | Wholesale & retail | 2025 |
| Minimal Effort Limited | Wholesale & retail | 2015 |
| Minipax Ltd | Professional & scientific | 2022 |
| Ministry of Chocolate Ltd | Manufacturing | 2010 |
| Mink Dolls Ltd | Other services | 2022 |
| Minnie’S: Style Collective Ltd | Other services | 2025 |
| Minnwave Ltd | Information & communication | 2026 |
| Minoli Works Ltd | Construction | 2026 |
| Minora Properties Ltd | Real estate | 2026 |
| Minster Court (Leicester) LLP | | 2011 |
| Minster Court (Leicester) Management Company Limited | Households | 2002 |
| Minster Court (Leicester) RTM Company Ltd | Households | 2019 |
| Minster Grange Developments Ltd | Wholesale & retail | 2007 |
| Minster Lead Roofing Ltd | Construction | 2021 |
| Minstergate Limited | Wholesale & retail | 2002 |
| Mint Manufacturing Limited | Manufacturing | 2010 |
| Mint Safety Deposit Centres Limited | Households | 2023 |
| Mint Securities Limited | Households | 2013 |
| Mint Smart Repairs Limited | Wholesale & retail | 2014 |
| Mint Value Traders Ltd | Wholesale & retail | 2025 |
| Minty Singh Training Limited | Professional & scientific | 2022 |
| Minworth Excellence Ltd | Transport & logistics | 2015 |
| MIO Trans Ltd | Transport & logistics | 2018 |
| MIP Distributions Ltd | Wholesale & retail | 2026 |
| MIP Eastfield Limited | Wholesale & retail | 2022 |
| MIP Werrington Limited | Wholesale & retail | 2022 |
| Mira Maktabi Ltd | Wholesale & retail | 2024 |
| Miraaj Limited | Transport & logistics | 2019 |
| Miraaj Properties Ltd | Real estate | 2019 |
| Mirabloom Ltd | Wholesale & retail | 2025 |
| Miracle Butik Ltd | Wholesale & retail | 2024 |
| Miracle View Windows Ltd | Construction | 2025 |
| Miraclerk Limited | Hospitality | 2018 |
| Mirage & R Cars Ltd | Wholesale & retail | 2026 |
| Mirage Estates Limited | Real estate | 2017 |
| Mirahurst Limited | Real estate | 1971 |
| Mirai Projects Ltd | Information & communication | 2025 |
| Miraki Group Investments Ltd | Real estate | 2022 |
| Mirecki Trans Ltd | Transport & logistics | 2018 |
| Mireya Consulting Ltd | Professional & scientific | 2025 |
| Mireya Properties Limited | Real estate | 2023 |
| Miri Bakery Limited | Wholesale & retail | 2021 |
| Miroslaw Turski Ltd | Transport & logistics | 2015 |
| Mirror Mirror Marketing Ltd | Professional & scientific | 2025 |
| Mirror Underground Assets Ltd | Construction | 2020 |
| Mirrored Images Ltd | Manufacturing | 2024 |
| Mirrorstone Lighting Limited | Wholesale & retail | 2011 |
| Mirud Ltd | Wholesale & retail | 2025 |
| Mirza Technologies Ltd | Information & communication | 2013 |
| Mirza&Co Ltd | Construction | 2023 |
| MIS Data Solutions Ltd | Education | 2025 |
| Misa Properties Limited | Real estate | 2017 |
| Misbah Property Ltd | Real estate | 2021 |
| Miserato Limited | Wholesale & retail | 2022 |
| MISHAL1 Ltd | Health & social care | 2020 |
| MISHIU07 Ltd | Other services | 2024 |
| Mishva Ltd | Hospitality | 2022 |
| Misi Investments Ltd | Real estate | 2018 |
| Misirli Corporate Trustees Limited | Professional & scientific | 2024 |
| Misirli UK Limited | Manufacturing | 1994 |
| Misiu Productions Limited | Information & communication | 2020 |
| Miska Technologies Ltd | Information & communication | 2018 |
| Mismi Limited | Wholesale & retail | 2019 |
| Misquare Group Limited | Extraterritorial | 2021 |
| Miss Amour Ltd | Manufacturing | 2026 |
| Miss B'S Kitchen & Catering Services Ltd | Hospitality | 2025 |
| Miss Beauty Ltd | Other services | 2025 |
| Miss CW Properties Limited | Real estate | 2024 |
| Miss Design Ltd | Manufacturing | 2019 |
| Miss EN Place Limited | Hospitality | 2025 |
| Miss Honey's Pre-School Ltd | Education | 2016 |
| Miss Lock-It Ltd | Other services | 2025 |
| Miss Nails Leicester Ltd | Other services | 2022 |
| Miss Pearl's Kitchen Limited | Hospitality | 2019 |
| Miss Pink Hair & Beauty Ltd | Other services | 2017 |
| Miss Sass Ltd | Wholesale & retail | 2022 |
| Miss Selfish Ltd | Manufacturing | 2019 |
| Miss Twenty One Ltd | Wholesale & retail | 2025 |
| Missagi Ltd | Wholesale & retail | 2019 |
| Missfiga Group Limited | Wholesale & retail | 2019 |
| Missfiyaa Ltd | Manufacturing | 2017 |
| Mission Construction Leicester Limited | Construction | 2015 |
| Mission Wines Ltd | Wholesale & retail | 2021 |
| Mississauga Ltd | Real estate | 2017 |
| Misstique Ltd | Wholesale & retail | 2019 |
| Misstyle Limited | Wholesale & retail | 2020 |
| Mist House Ltd | Wholesale & retail | 2023 |
| Mistri Healthcare & Consulting Ltd | Health & social care | 2015 |
| Mistry Car Sales Limited | Wholesale & retail | 2016 |
| Mistry Financial Consultants Limited | Professional & scientific | 2022 |
| Mistry Renovations Ltd | Construction | 2025 |