| Love Sushi Limited | Hospitality | 2023 |
| Love Teeth Group Limited | Financial services | 2024 |
| Love Teeth Hook Limited | Administrative & support | 2020 |
| Love Teeth Limited | Health & social care | 2013 |
| Love Teeth New Malden Limited | Health & social care | 2022 |
| Love Teeth Stonecot Limited | Health & social care | 2021 |
| Love Teeth Sutton Limited | Administrative & support | 2019 |
| Love Teeth Worcester Park Limited | Health & social care | 2021 |
| Love U Ltd | Administrative & support | 2025 |
| Lovelace Digital Ltd | Information & communication | 2019 |
| Lovely Paan & Snacks Ltd | Wholesale & retail | 2025 |
| LOW Cost Digital Services Limited | Information & communication | 2025 |
| LPS Innovation Ltd | Transport & logistics | 2020 |
| Lpsa Management Limited | Real estate | 2024 |
| LSD Stone Limited | Construction | 2020 |
| LSD Stone Worktop Ltd | Construction | 2023 |
| LSD Worktop Ltd | Construction | 2023 |
| Lsph Properties Ltd | Real estate | 2019 |
| LT Distrib Ltd | Wholesale & retail | 2023 |
| LT Distribution (NTH) Limited | Information & communication | 2003 |
| LTS One Ltd | Transport & logistics | 2026 |
| Luca Building Solutions Ltd | Construction | 2025 |
| Luca Buildings Services Limited | Construction | 2020 |
| Luciano Fittings Ltd | Construction | 2026 |
| Luckiloop Ltd | Manufacturing | 2024 |
| Luckora Holdings Limited | Professional & scientific | 2026 |
| Lucktria Investments Limited | Real estate | 2022 |
| Lucktria Ltd | Wholesale & retail | 2005 |
| Lucky 13 Goan Treats Limited | Hospitality | 2022 |
| Lugaracademy Ltd | Administrative & support | 2022 |
| Lugarpay Ltd | Information & communication | 2020 |
| Lugarprime Limited | Information & communication | 2020 |
| Luif Ltd | Transport & logistics | 2016 |
| Lukas Jewellery Limited | Other services | 2019 |
| Lukew Co-Living Limited | Transport & logistics | 2025 |
| Lukewarm Sentiments Ltd | Wholesale & retail | 2018 |
| Lukeyes Limited | Health & social care | 2014 |
| Lullabuy Ltd | Wholesale & retail | 2012 |
| Lullaby for the World CIC | Education | 2023 |
| Lulworth Court (Kenton) Limited | Households | 1971 |
| Lumano Ltd | Information & communication | 2025 |
| Luminary Media Limited | Professional & scientific | 2023 |
| Lumos Automotive Limited | Wholesale & retail | 2025 |
| LUNA24 Ltd | Hospitality | 2024 |
| Lunadawn Properties Ltd | Real estate | 2010 |
| Lunarstorm Studio Ltd | Information & communication | 2018 |
| Luneico Ltd | Administrative & support | 2025 |
| LUP Services Limited | Construction | 2020 |
| Lupa Analytics Ltd | Information & communication | 2025 |
| Luper Technologies Ltd | Information & communication | 2023 |
| Lush Software Ltd | Wholesale & retail | 2026 |
| Lutantuoverseas Ltd | Households | 2024 |
| Lutn Investment Ltd | Real estate | 2026 |
| Luvario Ltd | Wholesale & retail | 2020 |
| LUX Construction 1 Ltd | Construction | 2018 |
| LUX More Cars Ltd | Transport & logistics | 2023 |
| LUX Smart Repair Limited | Wholesale & retail | 2019 |
| LUX Wash UK Ltd | Other services | 2023 |
| LUX777 Limited | Wholesale & retail | 2025 |
| Luxagro Taurea Ltd | Wholesale & retail | 2026 |
| Luxe Beauty House Ltd | Other services | 2024 |
| Luxe Bijoux Ltd | Households | 2023 |
| Luxe Portraits Ltd | Professional & scientific | 2022 |
| Luxebourne Realty Limited | Real estate | 2025 |
| Luxebridge Limited | Wholesale & retail | 2025 |
| Luxehost Cleaning Limited | Administrative & support | 2025 |
| Luxeified Limited | Wholesale & retail | 2026 |
| Luxeous Cleaning Ltd | Construction | 2025 |
| Luxia Pharma Ltd | Wholesale & retail | 2024 |
| Luxmi Finance Limited | Professional & scientific | 2005 |
| Luxmi Mahal Ltd | Wholesale & retail | 2022 |
| LUXMI3 Limited | Hospitality | 2026 |
| Luxora Deals Ltd | Wholesale & retail | 2026 |
| Luxs Property Limited | Real estate | 2025 |
| Luxsha Rental Income Limited | Real estate | 2025 |
| Luxshan Import Ltd | Wholesale & retail | 2016 |
| Luxsy Jewellers London Ltd | Wholesale & retail | 2024 |
| Luxuria Leather Ltd | Wholesale & retail | 2025 |
| Luxuriant International Ltd | Wholesale & retail | 2023 |
| Luxurion Mart Limited | Wholesale & retail | 2025 |
| Luxuriousness Limited | Administrative & support | 2022 |
| Luxury Brand UK Stock Ltd | Wholesale & retail | 2023 |
| Luxury Painters Ltd | Construction | 2019 |
| Luxx Marble Ltd | Wholesale & retail | 2025 |
| Luxè Directory Ltd | Information & communication | 2025 |
| LVL99 Holdings Limited | Wholesale & retail | 2019 |
| LW 168 Ltd | Hospitality | 2025 |
| LX Global Logistics Limited | Transport & logistics | 2026 |
| LX Logistics Limited | Transport & logistics | 2026 |
| Lycee International DE Londres | Education | 2014 |
| Lyceum Baasket Ltd | Wholesale & retail | 2026 |
| Lyle Property Investments Ltd | Real estate | 2025 |
| Lyndons Art & Graphics Limited | Wholesale & retail | 2015 |
| Lyndons Investments Limited | Real estate | 2000 |
| Lysann Ltd | Real estate | 2019 |
| Lyubotrans Limited | Transport & logistics | 2022 |
| M & D Installations Limited | Construction | 2017 |
| M & J Business Consulting Ltd | Professional & scientific | 2018 |
| M & M Info-Tech Limited | Information & communication | 2016 |
| M & R Properties London LLP | | 2016 |