| LSD Promotions Limited | Real estate | 1993 |
| LSG Povey Limited | Professional & scientific | 2021 |
| Lucky Duck Media Ltd | Information & communication | 2026 |
| Lucky Spears Ltd | Education | 2019 |
| Luis Bruzual Limited | Health & social care | 2023 |
| Lumby Consultancy Ltd | Professional & scientific | 2024 |
| Luminate Holdings Ltd | Real estate | 2025 |
| Luminosa Consulting Ltd | Professional & scientific | 2019 |
| Lunalev Consulting Ltd | Information & communication | 2026 |
| Lunar Coaching and Consulting Ltd | Professional & scientific | 2025 |
| Lunaroguebeauty Ltd | Wholesale & retail | 2025 |
| Lush Safaris Limited | Administrative & support | 2018 |
| LUX Electrical Services Limited | Construction | 2004 |
| Luxe Mesh Limited | Construction | 2026 |
| Luxury Home Bars Limited | Manufacturing | 2023 |
| LW Details Ltd | Wholesale & retail | 2020 |
| Lydiates Sporting Ltd | Arts & recreation | 2023 |
| LYE Atfc Limited | Hospitality | 2022 |
| LYE Autos Ltd | Wholesale & retail | 2016 |
| LYE Convenience Store 1 Ltd | Wholesale & retail | 2026 |
| LYE Convenience Store Ltd | Wholesale & retail | 2024 |
| LYE CS Ltd | Wholesale & retail | 2025 |
| LYE DIY Ltd | Wholesale & retail | 2023 |
| LYE Piri Piri Chciken Ltd | Hospitality | 2026 |
| LYE Tracking Ltd | Wholesale & retail | 2026 |
| LYE Tyres Ltd | Wholesale & retail | 2025 |
| Lyndon Rakowski Executive Coaching Ltd | Manufacturing | 2023 |
| Lynx Pizza Stourbridge Limited | Hospitality | 2004 |
| Lyttelton Enterprises Limited | Arts & recreation | 2016 |
| M & a Tomic Electrical Limited | Extraterritorial | 2024 |
| M & J Ward Limited | Information & communication | 2005 |
| M & M Repairs (Stourbridge) Limited | Manufacturing | 2014 |
| M & P B Properties Limited | Households | 2020 |
| M & W Refurbishments Ltd | Real estate | 2019 |
| M Butts Roofing Limited | Construction | 2004 |
| M Health Solutions Ltd | Health & social care | 2013 |
| M J H Racking Holdings Limited | Financial services | 2017 |
| M J H Racking Limited | Construction | 1998 |
| M Mills Electrical Services Limited | Manufacturing | 2016 |
| M R D Service Station Limited | Wholesale & retail | 2018 |
| M R S Additives Ltd | Professional & scientific | 2022 |
| M R Service Station Limited | Wholesale & retail | 2018 |
| M S Hunjan Limited | Health & social care | 2013 |
| M T Cross Ltd | Wholesale & retail | 2013 |
| M T Rooms Limited | Real estate | 2014 |
| M&A Edgcumbe and Co Ltd | Hospitality | 2022 |
| M&B Garage Motor Repairs Ltd | Wholesale & retail | 2024 |
| M&C Pharma Limited | Health & social care | 2024 |
| M&D Psychology Ltd | Education | 2022 |
| M&E Design Ltd. | Administrative & support | 2016 |
| M+Arc Robotic Support Ltd | Wholesale & retail | 2002 |
| M.A. Polishing Limited | Manufacturing | 2001 |
| M.E.G.S. Limited | Wholesale & retail | 2003 |
| M.H. Properties Limited | Real estate | 1999 |
| M.J. Danby Limited | Manufacturing | 1973 |
| M.K. Joszt Limited | Health & social care | 2008 |
| Maaz Ventures Ltd | Wholesale & retail | 2024 |
| MAC Electrical Systems Limited | Construction | 2025 |
| MAC Physio & Pilates Ltd | Health & social care | 2014 |
| MAC Security Systems Ltd | Manufacturing | 2016 |
| MAC X Accounting Limited | Professional & scientific | 2024 |
| MAC X Advisory Limited | Professional & scientific | 2024 |
| MAC X Group Limited | Financial services | 2024 |
| Macdoes Limited | Professional & scientific | 2026 |
| Machinery Service Refurbish Limited | Manufacturing | 2025 |
| Macmullen Associates Limited | Real estate | 2008 |
| Macrow Limited | Financial services | 2018 |
| Madani Halal Meat and Groceries Ltd | Wholesale & retail | 2021 |
| Madani Meat and Groceries Ltd | Wholesale & retail | 2025 |
| Made by Husk Limited | Manufacturing | 2018 |
| Maelstrom Holdings Limited | Financial services | 2023 |
| Magma Controls Limited | Professional & scientific | 2019 |
| Magnate Partners Ltd | Real estate | 2024 |
| MAH Constructions Ltd | Construction | 2023 |
| Maikit Ltd | Manufacturing | 2019 |
| Mail Flow Monitor Limited | Information & communication | 2011 |
| Maintenance Engineering Insider Ltd | Professional & scientific | 2022 |
| Maison Firman Ltd | Information & communication | 2025 |
| Maison Renovations Ltd | Real estate | 2025 |
| MAK Inventories Ltd | Real estate | 2015 |
| Maka Equine Ltd | Real estate | 2025 |
| Make Asset Management Ltd | Real estate | 2023 |
| Makergrower Ltd | Wholesale & retail | 2024 |
| Makers PUB Co - the Plough Inn Ltd | Hospitality | 2025 |
| Makeyourshelter Ltd | Manufacturing | 2025 |
| Malb Services Limited | Administrative & support | 2020 |
| Mali Tech Limited | Information & communication | 2018 |
| Malik Estates(Uk) Ltd | Real estate | 2021 |
| Malik's Restaurant Ltd | Hospitality | 2025 |
| Malvern Spring Dental Practice Limited | Health & social care | 2008 |
| Malvern Store Ltd | Wholesale & retail | 2026 |
| MAMS19 Limited | Real estate | 2021 |
| MAMS19 LYE Limited | Real estate | 2026 |
| MAN Cave Expo UK Ltd | Administrative & support | 2022 |
| Manchester House (Church Stretton) Management Company Limited | Real estate | 2006 |
| Mandir Consultancy Services Limited | Professional & scientific | 2007 |
| Mandy Fast Food Limited | Hospitality | 2022 |
| Maneology Hair Extensions Limited | Other services | 2023 |
| Maneology Ltd | Other services | 2023 |
| Manison Developments Limited | Real estate | 2015 |