| Lyncas Limited | Information & communication | 2020 |
| Lynch Inns Ltd | Hospitality | 2018 |
| Lynette Hermocilla Ltd | Health & social care | 2022 |
| Lynham Holdings Limited | Real estate | 2024 |
| Lynk Living Ltd | Real estate | 2025 |
| Lynton Fine Porcelain Limited | Manufacturing | 2011 |
| Lynton Green Limited | Real estate | 2020 |
| Lyon Construction and Consulting Ltd | Professional & scientific | 2026 |
| Lyra Engineering Services Ltd | Professional & scientific | 2026 |
| Lythaze Ltd | Real estate | 2019 |
| Lytur Property Developments Ltd | Real estate | 2025 |
| L`Mor Hair Limited | Other services | 2004 |
| M & a Prime Estates Limited | Real estate | 2018 |
| M & a Residential and Commercial Ltd | Real estate | 2016 |
| M & B Motor Engineers Limited | Wholesale & retail | 2008 |
| M & D Damp Proofing Services (UK) Ltd | Construction | 2016 |
| M & D Recuitment Limited | Administrative & support | 2025 |
| M & I Holdings Limited | Financial services | 2025 |
| M & J Builders Limited | Construction | 2016 |
| M & J Sales Limited | Wholesale & retail | 2016 |
| M & L Agriculture Ltd | Agriculture & fishing | 2018 |
| M & L Living Limited | Real estate | 2025 |
| M & M Construction Management and Housing Development Limited | Construction | 1995 |
| M & M Homes Limited | Real estate | 2008 |
| M & P Property Lettings Limited | Real estate | 2003 |
| M & R Vehicle Solutions Limited | Wholesale & retail | 2018 |
| M & S Property Developments (West Midlands) Ltd | Households | 2019 |
| M & S Solicitors Limited | Professional & scientific | 2002 |
| M & U Traders Ltd | Wholesale & retail | 2025 |
| M a Bagnall Electrical Services Limited | Construction | 2008 |
| M and H Holdings (E M) Ltd | Construction | 2019 |
| M and S Farms and Haulage Ltd | Agriculture & fishing | 2009 |
| M B Car Sales Limited | Wholesale & retail | 2021 |
| M B Jones Limited | Financial services | 2017 |
| M Ball & Co Limited | Professional & scientific | 2021 |
| M Bissell Display Limited | Manufacturing | 2002 |
| M C E Engineering Limited | Manufacturing | 1996 |
| M C Witherspoon Consulting Ltd | Professional & scientific | 2017 |
| M Contractors Ltd | Construction | 2021 |
| M Core Systems Ltd | Information & communication | 2026 |
| M E Chapman (Building Services) Limited | Construction | 2002 |
| M E Consultancy Services Ltd | Financial services | 2021 |
| M E Millard Limited | Financial services | 2023 |
| M Echo Ltd | Health & social care | 2023 |
| M Elliot Building Ltd | Construction | 2025 |
| M G a Performance Car Specialist Limited | Wholesale & retail | 2001 |
| M G Cutting Limited | Financial services | 2013 |
| M Gregory Electrical Limited | Construction | 2025 |
| M H Chan Limited | Wholesale & retail | 2016 |
| M H Electrical Wholesaler Limited | Wholesale & retail | 2020 |
| M H Plumbing Derby Ltd | Construction | 2026 |
| M I Capital Limited | Construction | 2024 |
| M J Barker Construction Limited | Construction | 2025 |
| M J Consolidated Limited | Real estate | 2020 |
| M J Laurence Properties Limited | Real estate | 2017 |
| M J Robinson Developments Limited | Construction | 2021 |
| M J Robinson Structures Limited | Manufacturing | 2011 |
| M K Executive Ltd | Transport & logistics | 2023 |
| M K Heer Properties Ltd | Real estate | 2022 |
| M M Wesek Limited | Transport & logistics | 2025 |
| M Martin Events Ltd | Arts & recreation | 2026 |
| M Mura Ltd | Professional & scientific | 2018 |
| M O Peck Limited | Financial services | 2009 |
| M P Gethen Mechanical Process Pipework Limited | Manufacturing | 2001 |
| M Parker Engineering Ltd | Professional & scientific | 2025 |
| M R Anwyl Limited | Professional & scientific | 2012 |
| M S Caister & Co Limited | Professional & scientific | 2003 |
| M S Holdings Global Ltd | Wholesale & retail | 2019 |
| M S Sandhu Transport Ltd | Transport & logistics | 2024 |
| M Schofield Ltd | Financial services | 2025 |
| M Shah Construction Ltd | Construction | 2025 |
| M T Malone Civils Limited | Construction | 2018 |
| M W Carpet & Flooring Ltd | Administrative & support | 2017 |
| M W Rail 2014 Ltd | Construction | 2014 |
| M&A Flooring and Roofing Ltd | Construction | 2025 |
| M&B Gateway Properties Ltd | Real estate | 2025 |
| M&D Consultant Management Limited | Professional & scientific | 2025 |
| M&G Ventures Limited | Real estate | 2019 |
| M&I SON Construction Ltd | Construction | 2023 |
| M&J Kunica Holdings Ltd | Financial services | 2023 |
| M&L Sports Ltd | Education | 2021 |
| M&M Adventures Ltd | Education | 2022 |
| M&M Catering and Drinks Limited | Hospitality | 2024 |
| M&M Haulage Limited | Transport & logistics | 2022 |
| M&M Logistic Expert Ltd | Transport & logistics | 2025 |
| M&M Move and Build Ltd | Transport & logistics | 2025 |
| M&M Tax Payroll Ltd | Professional & scientific | 2018 |
| M&M Tax Services Ltd | Professional & scientific | 2016 |
| M&M UK Hilton Limited | Transport & logistics | 2025 |
| M&M UK PVT Ltd | Wholesale & retail | 2025 |
| M&M Veva Ltd | Real estate | 2025 |
| M&Mb Consulting Ltd | Professional & scientific | 2026 |
| M&N Medical Services Ltd | Health & social care | 2025 |
| M&N Mollazadeh Limited | Transport & logistics | 2024 |
| M&R Property (Derby) Ltd | Real estate | 2025 |
| M&S Auto & Body Repair Ltd | Wholesale & retail | 2022 |
| M&S Horton LLP | | 2018 |
| M&Smusic Ltd | Information & communication | 2025 |
| M-Prez Enterprise Limited | Wholesale & retail | 2009 |
| M-Tech Engineering (Derby) Limited | Manufacturing | 2003 |