| LGF Holdings Limited | Construction | 2022 |
| LGF Property Limited | Real estate | 2019 |
| Lgla Pro Key Ltd | Wholesale & retail | 2026 |
| LGV Training Solutions Limited | Education | 2013 |
| LGW Waste Solutions Ltd | Water & waste | 2025 |
| Liam Atkinson Amazon Ltd | Transport & logistics | 2026 |
| Liana’S Empire Ltd | Transport & logistics | 2022 |
| Lianmid Properties Limited | Real estate | 2022 |
| Liaqat Services Ltd | Wholesale & retail | 2026 |
| Libertas Building Ltd | Construction | 2023 |
| Liberty Property Investments Limited | Real estate | 2022 |
| Liberty Upholstery and Textiles Ltd | Manufacturing | 2019 |
| Libra F M C Ltd | Wholesale & retail | 2005 |
| Libra Heating Solutions Limited | Construction | 2024 |
| Libra Utility Solutions Ltd | Construction | 2024 |
| Libran Management Limited | Professional & scientific | 2014 |
| Lidice Lives | Information & communication | 2017 |
| Lidr Holdings Limited | Real estate | 2000 |
| Life Diagnostics Limited | Professional & scientific | 2009 |
| Life Fulfilment Group Ltd | Wholesale & retail | 2026 |
| Life Matters Support & Solution Ltd | Health & social care | 2021 |
| Life Plan Solutions Limited | Health & social care | 2017 |
| Life Through the Lens Limited | Arts & recreation | 2008 |
| Lifeline Healthcare PVT Ltd. | Public administration | 2018 |
| Lifetime Insurance Services Limited | Financial services | 1992 |
| Lift Monitoring Systems Ltd | Manufacturing | 1992 |
| Light Depot Ltd | Wholesale & retail | 2026 |
| Light My Soul Limited | Manufacturing | 2026 |
| Light Planes (Lancashire) Limited | Arts & recreation | 1925 |
| Lightfoot Investment Property Limited | Real estate | 2015 |
| Lightning Cleaning Services Ltd | Administrative & support | 2025 |
| Lightning Graphics Limited | Professional & scientific | 2020 |
| Lightoaks Commercials Limited | Wholesale & retail | 2023 |
| Lightsure Limited | Manufacturing | 2018 |
| Lightwood Consortium Ltd | Real estate | 2025 |
| Lightwood Electrical Limited | Manufacturing | 2012 |
| Lightwood Holdings Limited | Real estate | 2025 |
| Lightwood Property Solutions Limited | Construction | 2018 |
| Likja Ltd | Wholesale & retail | 2021 |
| Lilac Grove Developers Limited | Construction | 2024 |
| Lilianaconstruction Ltd | Construction | 2025 |
| Lillie RAE Estates Limited | Real estate | 2023 |
| Lillie RAE SA Ltd | Real estate | 2025 |
| Lilliput Farm Limited | Real estate | 1994 |
| Lilly Holdings Limited | Financial services | 2019 |
| Lillypot Ltd | Hospitality | 2021 |
| Lilyrose Care Group Limited | Health & social care | 2015 |
| Lilys Driver Training Ltd | Education | 2025 |
| Lilys Garden Organics Limited | Wholesale & retail | 2017 |
| Limas Motor Centre Ltd | Wholesale & retail | 2019 |
| Lime Renovations Ltd | Construction | 2025 |
| Limelight Gaming Ltd | Information & communication | 2016 |
| Liminal Frame Ltd | Information & communication | 2026 |
| Limitless Access Building Maintenance Limited | Construction | 2025 |
| Limitless Investment and Properties Limited | Real estate | 2020 |
| LIMITLESS365 Limited | Administrative & support | 2020 |
| Limlets Limited | Real estate | 2021 |
| Limo Hire Stoke Ltd | Transport & logistics | 2024 |
| Limra Homes Ltd | Real estate | 2021 |
| Lindsay Lockett Financial Guidance Limited | Financial services | 2007 |
| Lindsey's Parcel Delivery Services Limited | Transport & logistics | 2017 |
| Lindum 1969 Limited | Extraterritorial | 2015 |
| Lindum Osteopathic Practice Limited | Administrative & support | 2014 |
| Line Drive Limited | Transport & logistics | 2024 |
| Linea Interiors Limited | Wholesale & retail | 2006 |
| Lingreen Properties Limited | Construction | 1963 |
| Linkgate Healthcare Ltd | Health & social care | 2023 |
| Linkin Consulting Limited | Professional & scientific | 2009 |
| Links Developments Limited | Real estate | 2020 |
| Linktax Limited | Professional & scientific | 2006 |
| Linley Properties Holdings Ltd | Real estate | 2020 |
| Linny's Kitchen Limited | Hospitality | 2022 |
| LINTAKEAWAY88 Ltd | Hospitality | 2024 |
| Linwood Plant Limited | Construction | 1967 |
| Lion and Eagle Overmatch UK Limited | Manufacturing | 2026 |
| Lion and Swan Limited | Hospitality | 2020 |
| Lioness Homes Ltd | Households | 2019 |
| Lioness Management Limited | Real estate | 2018 |
| Lionshare Media Management Ltd | Information & communication | 2019 |
| Liquor Estate Limited | Wholesale & retail | 2026 |
| Liquor Library Ltd | Wholesale & retail | 2020 |
| LIS Transport Ltd | Transport & logistics | 2025 |
| Lisa 1 Ltd | Hospitality | 2025 |
| Lisa Mccandless Consulting Limited | Professional & scientific | 2020 |
| Lissy Taylor Ltd | Arts & recreation | 2025 |
| Lister Building Products Limited | Manufacturing | 2021 |
| Lister Grove Residents Association Limited | Households | 2006 |
| Lister Services Ltd | Agriculture & fishing | 2023 |
| Lister Window Systems Limited | Manufacturing | 2021 |
| Listers Central Limited | Manufacturing | 2017 |
| Literary Labs Ltd | Professional & scientific | 2025 |
| Little Angel Tuition Ltd | Education | 2013 |
| Little Athletes (Stoke on Trent) Ltd | Administrative & support | 2026 |
| Little Athletes Franchise Limited | Administrative & support | 2021 |
| Little Baps Ltd | Hospitality | 2020 |
| Little Chops Limited | Manufacturing | 2021 |
| Little Daydreamers Ltd | Arts & recreation | 2025 |
| Little Humans Staffordshire CIC | Information & communication | 2022 |
| Little Jamaican Takeaway Limited | Hospitality | 2023 |
| Little Loves by Kelly Ltd | Wholesale & retail | 2022 |