| Microtec Advanced Manufacturing Limited | Manufacturing | 1998 |
| Microtech Digital Services LLP | | 2013 |
| Microtech Digital Services One Limited | Information & communication | 2024 |
| Mid-Tex UK Ltd | Wholesale & retail | 2012 |
| Mida Creek Ltd | Administrative & support | 2021 |
| Midaas Ltd | Transport & logistics | 2026 |
| Midalton Ltd | Agriculture & fishing | 2023 |
| Midas Legacy Ltd | Real estate | 2022 |
| Midas Star Holdings Limited | Financial services | 2021 |
| Midbuild Ltd | Construction | 2025 |
| Midcart PVT Ltd | Wholesale & retail | 2026 |
| Midcorsetry Limited | Manufacturing | 2015 |
| Middell Limited | Real estate | 2025 |
| Middlepeak Marble & Granite Limited | Manufacturing | 2007 |
| Middleton & Allen Limited | Construction | 2004 |
| Middleton Architects Ltd | Professional & scientific | 2012 |
| Middleton Health Limited | Wholesale & retail | 2024 |
| Middleton Healthcare Limited | Wholesale & retail | 1995 |
| Middleware Consultancy Limited | Information & communication | 2019 |
| Midfit Ltd | Wholesale & retail | 2021 |
| Midgar Ltd | Administrative & support | 2025 |
| Midgate Group Ltd | Construction | 2025 |
| Midholme Talented Ltd | Transport & logistics | 2014 |
| Midipar Limited | Real estate | 1990 |
| Midland Access Platforms Limited | Administrative & support | 1999 |
| Midland Apartments Ltd | Hospitality | 2023 |
| Midland Appliance Care Ltd | Other services | 2021 |
| Midland Auto Solutions Ltd | Wholesale & retail | 2007 |
| Midland Bi-Folds Limited | Extraterritorial | 2010 |
| Midland Boilercare Limited | Construction | 2002 |
| Midland Bright Limited | Administrative & support | 2022 |
| Midland Caterers Ltd | Extraterritorial | 2009 |
| Midland Concrete Ltd | Transport & logistics | 2015 |
| Midland Construction Leicester Limited | Other services | 2013 |
| Midland Controls Ltd | Manufacturing | 2021 |
| Midland Counties Landscapers Limited | Administrative & support | 2002 |
| Midland Damp Doctor Limited | Construction | 2014 |
| Midland Delivery Ltd | Transport & logistics | 2026 |
| Midland Developers Ltd | Real estate | 2023 |
| Midland Development Dream Ltd | Construction | 2025 |
| Midland Distributors Limited | Professional & scientific | 2009 |
| Midland Executive Ltd | Transport & logistics | 2026 |
| Midland Fire Solutions Ltd | Other services | 2015 |
| Midland Fire Special Risks Ltd | Other services | 2026 |
| Midland Garage Equipment (Sales) Ltd | Manufacturing | 2015 |
| Midland Garments Limited | Wholesale & retail | 2024 |
| Midland Hand Car Wash Ltd | Administrative & support | 2023 |
| Midland Handling Equipment Limited | Manufacturing | 1973 |
| Midland Heating Solutions LLP | | 2008 |
| Midland Hygiene Services (Leicester) Ltd | Administrative & support | 2006 |
| Midland Installations Ltd | Construction | 2005 |
| Midland Knitwear Manufacturing Company Limited | | 1943 |
| Midland Marketing (UK) Limited | Wholesale & retail | 1997 |
| Midland Marquees Limited | Other services | 2017 |
| Midland Metal Trader Limited | Wholesale & retail | 2024 |
| Midland OIL Company Ltd | Wholesale & retail | 2003 |
| Midland Piling Ltd | Construction | 2017 |
| Midland Plant & Scaffolding (Property) Limited | Real estate | 2003 |
| Midland Plant Co Ltd | Wholesale & retail | 2026 |
| Midland Power Ltd | Professional & scientific | 2019 |
| Midland Premier Properties Limited | Wholesale & retail | 2017 |
| Midland Pressure Systems Limited | Manufacturing | 2025 |
| Midland Prestige Ltd | Wholesale & retail | 2019 |
| Midland Render Limited | Construction | 2012 |
| Midland Rock (Leicester) Limited | Transport & logistics | 2007 |
| Midland Rock Civil Engineering Limited | Extraterritorial | 2003 |
| Midland Rock Holdings Limited | Financial services | 2025 |
| Midland Rock Recycling Limited | Water & waste | 2018 |
| Midland Screenprinters Limited | Manufacturing | 1986 |
| Midland Services UK Ltd | Construction | 2019 |
| Midland Sheetmetal | | 1987 |
| Midland Signs (Leicester) Limited | Manufacturing | 1983 |
| Midland Sound & Lighting Limited | Arts & recreation | 2001 |
| Midland Supplies Ltd | Wholesale & retail | 2017 |
| Midland Tissue Company Limited | Manufacturing | 2024 |
| Midland Trade Solutions Ltd | Wholesale & retail | 2024 |
| Midland Truck Tech Ltd Ltd | Wholesale & retail | 2019 |
| Midland UK Tyres Ltd | Wholesale & retail | 2025 |
| Midland Ventilation Supplies Limited | Wholesale & retail | 2012 |
| Midland Venues Ltd | Hospitality | 2024 |
| Midland Wealth Solutions Limited | Financial services | 2015 |
| Midlands Advice & Training Services Ltd | Information & communication | 2009 |
| Midlands Assure Housing Solutions Limited | Hospitality | 2025 |
| Midlands Autohaus Limited | Wholesale & retail | 2022 |
| Midlands Bedrooms Ltd | Manufacturing | 2024 |
| Midlands Builders Merchant Ltd | Construction | 2022 |
| Midlands Care Centre Limited | Health & social care | 2015 |
| Midlands Care Direct (Leicester) Limited | Education | 2026 |
| Midlands Care Direct Ltd | Health & social care | 2017 |
| Midlands Caring Ltd | Wholesale & retail | 2022 |
| Midlands Civil Engineering Services Ltd | Construction | 2015 |
| Midlands Electrical Projects Ltd | Construction | 2025 |
| Midlands EV Limited | Construction | 2020 |
| Midlands Fire Doors Ltd | Construction | 2025 |
| Midlands Fire Protection Ltd | Public administration | 2025 |
| Midlands Fireplaces and Fittings Limited | Construction | 2018 |
| Midlands Fresh Food Ltd | Wholesale & retail | 2026 |
| Midlands GAS & Plumbing Ltd | Construction | 2024 |
| Midlands Green Energy Ltd | Construction | 2013 |
| Midlands Green&Clean Ltd | Water & waste | 2025 |