| Luxurypergola Ltd | Manufacturing | 2021 |
| Luxusheat Ltd | Construction | 2015 |
| LUZ and Vida Limited | Education | 2025 |
| Luzenco Ltd | Professional & scientific | 2007 |
| LVA Group Ltd | Administrative & support | 2017 |
| LVA Investments Ltd | Administrative & support | 2019 |
| LVB Switchgear Services Ltd | Professional & scientific | 2014 |
| LVC Builders Ltd | Construction | 2025 |
| LVF Automobile Ltd | Wholesale & retail | 2020 |
| LVG Properties Ltd | Real estate | 2021 |
| LVS Estates Limited | Real estate | 2015 |
| LVT Properties Limited | Real estate | 2024 |
| LW Education and Support Ltd | Education | 2026 |
| LW Insulation Limited | Construction | 2020 |
| LWJ Carpentry Limited | Construction | 2012 |
| LWM Building Services Limited | Construction | 2022 |
| Lwow Ltd | Health & social care | 2023 |
| Lwvn Ltd | Wholesale & retail | 2026 |
| LX Couriers Ltd | Transport & logistics | 2020 |
| Ly-Recruitment Limited | Administrative & support | 2024 |
| Lyall and Lyall Limited | Professional & scientific | 2010 |
| Lyalpur Services Ltd | Transport & logistics | 2024 |
| LYB Exports Limited | Wholesale & retail | 2022 |
| LYC Business Consultancy Ltd | Agriculture & fishing | 2013 |
| Lycanium Limited | Professional & scientific | 2017 |
| Lycett and Snowden Properties Ltd | Real estate | 2020 |
| Lydgate Narin Ltd | Wholesale & retail | 2025 |
| Lydiastar Limited | Information & communication | 2021 |
| Lydimed Limited | Health & social care | 2011 |
| Lyford Consummate Ltd | Transport & logistics | 2015 |
| Lykos Management and Consulting Solutions Ltd | Professional & scientific | 2016 |
| Lyku Ltd | Wholesale & retail | 2013 |
| Lyly Rose Limited | Public administration | 2023 |
| Lymbridge Haulage Ltd | Transport & logistics | 2014 |
| Lyme Tree Contractors Ltd | Construction | 2018 |
| Lyncote Road Flats Maintenance Company Limited | Real estate | 1974 |
| Lyncroft Holdings Ltd | Financial services | 2026 |
| Lyndhurst Lodge Residential Home Limited | Health & social care | 2003 |
| Lyndhurst Private Limited | Real estate | 2010 |
| Lyndhurst Private Pre-School Day Nursery Limited | Education | 2002 |
| Lyndhurst Private Properties Limited | Real estate | 2010 |
| Lyndon Cromer Ltd | Wholesale & retail | 2025 |
| Lyndon Thomas Limited | Construction | 2002 |
| Lyndwood Court RTM Company Limited | Households | 2004 |
| Lynette.C Limited | Manufacturing | 2020 |
| Lynhills VZ Ltd | Administrative & support | 2026 |
| Lynk Accountancy Ltd | Professional & scientific | 2021 |
| Lynk Design Ltd | Professional & scientific | 2014 |
| Lynmouth Transport Ltd | Transport & logistics | 2014 |
| Lynovo Ltd | Wholesale & retail | 2025 |
| Lynworth Transport Ltd | Transport & logistics | 2014 |
| Lyon & London Ltd | Construction | 2019 |
| Lyosenz Ltd | Professional & scientific | 2020 |
| Lyra 15 Limited | Hospitality | 2024 |
| Lyrcon Global Solutions Ltd | Information & communication | 2025 |
| Lyrids Asset Management Ltd | Real estate | 2023 |
| Lyson Group Ltd | Wholesale & retail | 2016 |
| Lytegro Limited | Manufacturing | 2015 |
| Lytwork Ltd | Professional & scientific | 2024 |
| Lyyl Ltd | Information & communication | 2019 |
| M & a Beauty Supplements Limited | Other services | 2019 |
| M & a Distribution Ltd | Construction | 2018 |
| M & a Global Distribution Ltd | Wholesale & retail | 2024 |
| M & a Plumbing & Heating Limited | Construction | 2005 |
| M & a Store Leicester Limited | Extraterritorial | 2017 |
| M & AG Property Ltd | Real estate | 2021 |
| M & D (Leicester) Ltd | Hospitality | 2019 |
| M & D RO Ltd | Wholesale & retail | 2018 |
| M & E Accident Repair Centre Ltd | Wholesale & retail | 2013 |
| M & F Holdings Limited | Real estate | 2023 |
| M & G Builders (Leicester) Ltd | Construction | 2020 |
| M & G Commercial Ltd | Real estate | 2023 |
| M & G Properties Limited | Real estate | 2004 |
| M & K Haulage Ltd | Transport & logistics | 2024 |
| M & K Holdings Ltd. | Financial services | 1991 |
| M & K Medical Ltd | Health & social care | 2023 |
| M & L Services (UK) Ltd | Health & social care | 2012 |
| M & M Cabs Ltd | Transport & logistics | 2016 |
| M & M Fabrications Ltd | Manufacturing | 2004 |
| M & M Garments Ltd | Manufacturing | 2016 |
| M & M Halal Meat Centre Limited | Hospitality | 2015 |
| M & M International Transport Limited | Transport & logistics | 2001 |
| M & M Investments (Leic) Ltd | Construction | 2014 |
| M & M Plant Limited | Construction | 2011 |
| M & M Projects (UK) Ltd | Construction | 2012 |
| M & M Solicitors (Leicester) Limited | Professional & scientific | 2021 |
| M & O Building Contractors Limited | Construction | 2000 |
| M & O Electrical Ltd | Construction | 2010 |
| M & O Properties Limited | Real estate | 2018 |
| M & P Building Services Leicester Ltd | Construction | 2015 |
| M & P Properties Leicester Ltd | Real estate | 2022 |
| M & R Holdings Leicester Limited | Financial services | 2020 |
| M & S Accountancy Services Ltd | Other services | 2020 |
| M & S Design and Build Ltd | Construction | 2024 |
| M & S Development (Leic) Ltd | Real estate | 2020 |
| M & S Property Holdings Ltd | Real estate | 2018 |
| M & U Properties Ltd | Real estate | 2023 |
| M & Z Beeby Haulage Limited | Transport & logistics | 2005 |
| M a Fashions Ltd | Manufacturing | 2015 |
| M a Hair Ltd | Other services | 2023 |