| Lmanda CC Ltd | Wholesale & retail | 2025 |
| LMC Maintenance Ltd | Construction | 2025 |
| LMC Research Ltd | Wholesale & retail | 2026 |
| Lmcxq Ltd | Wholesale & retail | 2025 |
| Lmgg Property Ltd | Real estate | 2025 |
| LN JUN Ltd | Wholesale & retail | 2025 |
| Load Compliance Limited | Transport & logistics | 2025 |
| Load Guard Warehousing Ltd | Administrative & support | 2025 |
| Loboter Electrical Appliance Co., Ltd | Wholesale & retail | 2020 |
| Local Auth Group Action Limited | Professional & scientific | 2025 |
| Local in Hungary Ltd | Administrative & support | 2024 |
| Local Links Ltd | Real estate | 2025 |
| Local Networking Ltd | Other services | 2024 |
| Local Street Events Ltd | Professional & scientific | 2021 |
| Localsphere Limited | Administrative & support | 2016 |
| Locass Ltd | Extraterritorial | 2024 |
| Locationxr Limited | Professional & scientific | 2017 |
| Locee International Limited | Administrative & support | 2019 |
| Locked Escape Rooms Ltd | Arts & recreation | 2019 |
| Locked-In Ltd | Information & communication | 2024 |
| Lockend Jewelry Ltd | Manufacturing | 2025 |
| Locker Group Holdings Limited | Financial services | 2026 |
| Locker Management Ltd | Professional & scientific | 2026 |
| Lockhart Media Ltd | Information & communication | 2026 |
| Locus Loac Ltd | Information & communication | 2021 |
| Locy Global Ltd | Wholesale & retail | 2025 |
| Lodgeik Ltd | Hospitality | 2025 |
| Logan Beck Water Ltd | Other services | 2021 |
| Logic Trading Limited | Wholesale & retail | 2026 |
| Logicflow AI Ltd | Information & communication | 2026 |
| Logilink Trade Company Limited | Manufacturing | 2024 |
| Logistar UK Ltd | Professional & scientific | 2021 |
| Loiinda Ltd | Wholesale & retail | 2025 |
| Loineard Ltd | Wholesale & retail | 2025 |
| Loki (5&6) Ltd | Real estate | 2012 |
| Lomalort Ltd | Information & communication | 2024 |
| Lomaso Limited | Professional & scientific | 2011 |
| Lombard Wharf RTM Company Limited | Households | 2020 |
| London Apex Path Consulting Limited | Information & communication | 2025 |
| London Bell Biotechnology Ltd | Wholesale & retail | 2025 |
| London Biome Ltd | Manufacturing | 2026 |
| London Cabling Limited | Construction | 2025 |
| London Calling International Limited | Professional & scientific | 2015 |
| London Fortunerise Finance Advisory Ltd | Financial services | 2026 |
| London Management Academy Limited | Education | 2020 |
| London Maternity Scans Limited | Health & social care | 2024 |
| Long Business Advisors Limited | Professional & scientific | 2020 |
| Long DA Ltd | Administrative & support | 2023 |
| Longbull Ltd | Wholesale & retail | 2025 |
| Longdesign Ltd | Wholesale & retail | 2025 |
| Longdongqiang Ltd | Wholesale & retail | 2025 |
| Longfeed Trade Ltd | Wholesale & retail | 2025 |
| Longhyan LHY Ltd | Wholesale & retail | 2025 |
| Longjia Limited | Wholesale & retail | 2026 |
| Longlong Ltd | Wholesale & retail | 2026 |
| Longmasan Ltd | Wholesale & retail | 2025 |
| Longming Limited | Wholesale & retail | 2025 |
| Longview Wabriella Ltd | Wholesale & retail | 2025 |
| Longxiao Ltd | Wholesale & retail | 2025 |
| Longyl Ltd | Wholesale & retail | 2025 |
| Longyue International Ltd | Wholesale & retail | 2025 |
| Longzhenfei Trading Ltd | Wholesale & retail | 2024 |
| Lonni International Media Ltd | Wholesale & retail | 2025 |
| Lonxclawer Limited | Wholesale & retail | 2026 |
| Loom Pirouette Ltd | Wholesale & retail | 2025 |
| Loomrise Atelier Ltd | Wholesale & retail | 2025 |
| Loop Machinery Parts Limited | Administrative & support | 2020 |
| Loot Vault Technologies Ltd | Information & communication | 2025 |
| Lopes & Co Accommodation Solutions Ltd | Real estate | 2025 |
| Loraeya LLP | | 2025 |
| Loren Facer Fashion Limited | Wholesale & retail | 2026 |
| Lorenyale Pinnacle Ltd | Wholesale & retail | 2025 |
| Loro ESO Maubara Coffee Ltd | Wholesale & retail | 2025 |
| Lorski Ltd | Extraterritorial | 2024 |
| Losingthewires Limited | Information & communication | 2010 |
| Lost at the Parks Ltd | Wholesale & retail | 2025 |
| Lost in Fantasy Limited | Wholesale & retail | 2024 |
| LOT N17 Ltd | Real estate | 2021 |
| Lottie Harrison OT Ltd | Health & social care | 2025 |
| Lotus Bridge Ltd | Wholesale & retail | 2026 |
| Lotustar Tech Limited | Wholesale & retail | 2025 |
| Lotwood Holdings Ltd | Financial services | 2025 |
| Lotwood Investments Ltd | Financial services | 2025 |
| Louella's Light Healing Ltd | Education | 2025 |
| Loughside IT Ltd | Information & communication | 2016 |
| Louis Cassin Ltd | Wholesale & retail | 2025 |
| Louis Vale Brand Management (UK) Ltd | Wholesale & retail | 2022 |
| Loutsway Ltd | Wholesale & retail | 2026 |
| Lovabazaar Ltd | Wholesale & retail | 2025 |
| Love Music Hate Racism Ltd | Arts & recreation | 2017 |
| Love, Luna Petwear Ltd | Wholesale & retail | 2026 |
| Lovedogforever Ltd | Manufacturing | 2025 |
| Lovegamingagain Ltd | Information & communication | 2026 |
| Lovemotorsport Ltd | Wholesale & retail | 2012 |
| Lovent Ltd | Professional & scientific | 2019 |
| Loviatov Ltd | Wholesale & retail | 2025 |
| Lowbudgetstudios Ltd | Information & communication | 2020 |
| Lower Yardro Poultry Ltd | Agriculture & fishing | 2024 |
| LOY Driver Services Ltd | Transport & logistics | 2025 |
| Loyal Ambition Ltd | Wholesale & retail | 2021 |