| Lucky Cat Properties Ltd | Hospitality | 2026 |
| Lucky Prime Ltd | Real estate | 2026 |
| Lucz Ltd | Professional & scientific | 2019 |
| Luczone Ltd | Wholesale & retail | 2020 |
| Lufuma B2B Services Ltd | Manufacturing | 2014 |
| Lufuno Ltd | Health & social care | 2025 |
| Luhars Ltd | Real estate | 2020 |
| Luiza 10 Ltd | Construction | 2023 |
| Lukas Professional Cleaning Ltd | Administrative & support | 2026 |
| Lukaseb Ltd | Wholesale & retail | 2023 |
| Lukewk Management Limited | Transport & logistics | 2025 |
| Lukman Araoye Ltd | Administrative & support | 2025 |
| Lumacare OT Limited | Professional & scientific | 2026 |
| Lumenheal Ltd | Health & social care | 2025 |
| Lumeon Advisory Ltd | Professional & scientific | 2025 |
| Luminous Luxe Gemstone Collection Ltd | Wholesale & retail | 2024 |
| Lunexa Healthcare Limited | Manufacturing | 2025 |
| Lush Pearls - Natural Beauty Ltd | Wholesale & retail | 2022 |
| Lusidos Ltd | Construction | 2023 |
| Lustics Limited | Households | 2018 |
| Luumen Advertising Ltd | Other services | 2023 |
| Luven'Kare Ltd | Health & social care | 2024 |
| Luxe Living Furniture Ltd | Wholesale & retail | 2025 |
| Luxee Educare Limited | Financial services | 2024 |
| Luxeland Ltd | Real estate | 2024 |
| Luxereluxe Ltd | Wholesale & retail | 2025 |
| Luxifi Ltd | Wholesale & retail | 2023 |
| Luxor Prime Property Limited | Construction | 2026 |
| Luxury Security UK Ltd | Administrative & support | 2021 |
| LV6 Electrical Limited | Construction | 2023 |
| Lvingking Production Ltd | Information & communication | 2025 |
| LXZ UK Ltd | Construction | 2022 |
| Lynford Constructtions Limited | Construction | 2023 |
| Lynnbas Limited | Health & social care | 2010 |
| Lypter Limited | Real estate | 2024 |
| LYX Chauffeurs Ltd | Transport & logistics | 2026 |
| M & a Removals and Courier Ltd | Transport & logistics | 2023 |
| M & C Care Services Limited | Administrative & support | 2019 |
| M a Chauffeur Ltd | Transport & logistics | 2025 |
| M a Safety Services Limited | Professional & scientific | 2015 |
| M and N Foods Services Ltd | Hospitality | 2025 |
| M Business View Ltd | Administrative & support | 2021 |
| M Hanan’S Ltd | Wholesale & retail | 2024 |
| M M & I Shipping Ltd | Other services | 2018 |
| M Molla Ltd | Professional & scientific | 2016 |
| M S Constructions Services Ltd | Construction | 2019 |
| M Taylor Estates Ltd | Real estate | 2025 |
| M VAL Construction Ltd | Construction | 2023 |
| M Z Domestics Ltd | Wholesale & retail | 2026 |
| M Z S Traders Ltd | Wholesale & retail | 2021 |
| M Zain Ltd | Construction | 2026 |
| M&A Cash & Carry Ltd | Wholesale & retail | 2023 |
| M&D Engines Limited | Wholesale & retail | 2019 |
| M&E Drylining Ltd | Construction | 2026 |
| M&M Brilliant Service Limited | Administrative & support | 2023 |
| M&M Enterprises London Ltd | Wholesale & retail | 2024 |
| M&M Flooring Limited | Wholesale & retail | 2018 |
| M&M Prime Ltd | Wholesale & retail | 2024 |
| M&M Rahman Limited | Real estate | 2026 |
| M&M Style Ltd | Other services | 2021 |
| M&N Fast Solutions Ltd | Construction | 2022 |
| M&N Fruit and VEG Ltd | Wholesale & retail | 2021 |
| M&N&S Construction Ltd | Construction | 2021 |
| M&O Engineering Limited | Construction | 2018 |
| M&U Construction Ltd | Construction | 2023 |
| M. Metalia Construction Ltd | Construction | 2025 |
| M.A.K.E Property Limited | Real estate | 2024 |
| M.H.C.A Plumbing & GAS Heating Services Ltd | Construction | 2020 |
| M.I.A Express Ltd | Other services | 2017 |
| M.I.A. Installations Ltd | Administrative & support | 2016 |
| M.M First Construction Ltd | Construction | 2023 |
| M.O. Logistix Ltd | Manufacturing | 2025 |
| M.S.Shanthosh Ltd | Other services | 2018 |
| M12 Records and Entertainment Limited | Information & communication | 2025 |
| M1RO11 Ltd | Transport & logistics | 2023 |
| M2 Holdings & Investments Ltd | Financial services | 2024 |
| M2 Tech and Gadgets Ltd | Wholesale & retail | 2026 |
| M28 Logistics Ltd | Transport & logistics | 2025 |
| M2HSE Training Limited | Professional & scientific | 2020 |
| M3 Market Ltd | Wholesale & retail | 2025 |
| M4 Trading Limited | Transport & logistics | 2016 |
| M4S Group Ltd | Administrative & support | 2022 |
| M4S Recruitment Ltd | Administrative & support | 2025 |
| M98 Ventures Limited | Information & communication | 2024 |
| MA Bakers London Ltd | Hospitality | 2025 |
| MA Facilities Ltd | Administrative & support | 2026 |
| MA RIS Catering and Events Limited | Hospitality | 2023 |
| MA Shopfront Shutters Ltd | Construction | 2021 |
| MA Vaults Ltd | Wholesale & retail | 2024 |
| MA23JAN Limited | Professional & scientific | 2025 |
| Maain Ltd | Wholesale & retail | 2025 |
| Maalex Cleaning Services Ltd | Administrative & support | 2026 |
| Maani Advisory Clinic Ltd | Professional & scientific | 2026 |
| Maaraaz Ltd | Wholesale & retail | 2026 |
| Maay Enterprises Ltd | Health & social care | 2020 |
| Maazgroup Ltd | Hospitality | 2023 |
| Mabet Limited | Health & social care | 2015 |
| MAC Publishing House Limited | Information & communication | 2021 |
| MAC Security Contractors Limited | Administrative & support | 2018 |
| MAC Social Ltd | Professional & scientific | 2024 |