| LIP Solutions Limited | Administrative & support | 2011 |
| Lipizzan Systems Limited | Administrative & support | 2015 |
| Lisa Jayne Personal Tutors Ltd | Education | 2021 |
| Lisa Westerman Consultancy (LWC) Limited | Professional & scientific | 2017 |
| Lisa Westerman Consultancy Lettings & Sales (Lwcls) Limited | Real estate | 2018 |
| Lissagriffin Services Ltd | Real estate | 2025 |
| Lister 1967 Limited | Extraterritorial | 2015 |
| Listernet Ltd | Information & communication | 2016 |
| Lite-Up Anywhere Ltd | Wholesale & retail | 2012 |
| Little Fort Langroyd Ltd | Construction | 2023 |
| Little Greek Limited | Hospitality | 2024 |
| Little House Property Group Ltd | Real estate | 2024 |
| Little Paddock Caravan Park Ltd | Administrative & support | 2021 |
| Little Piggy Properties Ltd | Real estate | 2020 |
| Little Shop Props Ltd | Wholesale & retail | 2022 |
| Little Stars Pre-School Ltd | Health & social care | 2018 |
| Little White Books Ltd | Administrative & support | 2011 |
| Littleborough Financial Services Limited | Financial services | 2015 |
| Littleborough Storage Limited | Real estate | 2014 |
| Littlegreen Management Company Limited | Households | 1989 |
| Live Merch MCR Ltd | Wholesale & retail | 2024 |
| Live Well UK 123 Limited | Professional & scientific | 2017 |
| Livepharma Plus Limited | Health & social care | 2020 |
| Living Support 4 U Ltd | Health & social care | 2021 |
| Living Your Dream Consultancy Ltd | Professional & scientific | 2012 |
| Livingly Housing Limited | Construction | 2025 |
| Livingly Limited | Wholesale & retail | 2019 |
| Livingly Properties Ltd | Construction | 2020 |
| Liyana Ventures Ltd | Real estate | 2024 |
| LJ Rental Properties Ltd | Real estate | 2020 |
| LJM Parking Ltd | Other services | 2025 |
| LK Globe Ltd | Hospitality | 2025 |
| LLA Media Ltd | Information & communication | 2019 |
| LM Bailey Electrical Services Ltd | Construction | 2017 |
| Lmcj Bodyshop Ltd | Manufacturing | 2018 |
| LMF Bars Ltd | Hospitality | 2025 |
| LMG Groundwork’S Ltd | Construction | 2019 |
| LML Lifestyles Ltd | Real estate | 2017 |
| LMP Building and Maintenance Ltd | Construction | 2024 |
| LMR Technologies Ltd | Extraterritorial | 2012 |
| LMS Property Management Limited | Real estate | 2011 |
| LNB Services Ltd | Administrative & support | 2013 |
| LNR Haulage Ltd | Transport & logistics | 2020 |
| LNS Properties & Management Ltd | Construction | 2021 |
| Lo-Vere Care Services Ltd | Administrative & support | 2024 |
| Local Express Market Ltd | Wholesale & retail | 2024 |
| Local Express Mini Mart Ltd | Wholesale & retail | 2025 |
| Local Properties Ltd | Real estate | 2023 |
| Localmanandvan Ltd | Transport & logistics | 2024 |
| LOCK50 Ltd | Administrative & support | 2024 |
| Lockheart Films Ltd | Information & communication | 2013 |
| Lockstitch Limited | Manufacturing | 2004 |
| Loft UP Limited | Manufacturing | 2025 |
| Loftus and Stretton Limited | Transport & logistics | 2017 |
| Logan Knight Limited | Extraterritorial | 2024 |
| Logic Turn Limited | Information & communication | 2017 |
| Logical Consultancy & Management Services Limited | Professional & scientific | 1990 |
| Logicflow Social Ltd | Professional & scientific | 2025 |
| Lohnekoda Limited | Wholesale & retail | 2025 |
| Loicenzo Style Limited | Other services | 2020 |
| Loki Corporate Limited | Extraterritorial | 2015 |
| Lomax Reclamation Limited | Wholesale & retail | 2021 |
| Lombardi's Traders Limited | Wholesale & retail | 2020 |
| LON50 Limited | Professional & scientific | 2024 |
| London Nutraceuticals Limited | Manufacturing | 2023 |
| Lone Star Hospitality Group UK Limited | Hospitality | 2026 |
| Lone Wolf Grooming Ltd | Other services | 2020 |
| Lone Worker Solutions Limited | Information & communication | 2009 |
| Long Choice Limited | Hospitality | 2019 |
| Longcommons Limited | Financial services | 2026 |
| Loomix Energy Solutions Ltd | Construction | 2023 |
| Loop Phone Ltd | Wholesale & retail | 2025 |
| Loravia Care Group Ltd | Administrative & support | 2026 |
| Lord North Group Holdings Ltd | Administrative & support | 2020 |
| Lord Training Solutions Ltd | Education | 2024 |
| Lord Wholesale Company Limited | Wholesale & retail | 2013 |
| Lord's the Caterers Limited | Hospitality | 1954 |
| Lorillathegorilla Ltd | Wholesale & retail | 2026 |
| Lorsho Limited | Manufacturing | 2013 |
| Loss Angeless Ltd | Wholesale & retail | 2026 |
| Lourdèsuk Ltd | Wholesale & retail | 2025 |
| Love and Faith Believers Church | Other services | 2022 |
| Love Embassy Limited | Health & social care | 2024 |
| Loxdon Developers Ltd | Real estate | 2024 |
| Loxdon Fashions Ltd | Wholesale & retail | 2017 |
| Loyal Security Distribution Ltd | Wholesale & retail | 2024 |
| Loyal Security North West Ltd | Administrative & support | 2025 |
| Loyal Security Services Ltd | Administrative & support | 2021 |
| LP Essential Homes Ltd | Real estate | 2025 |
| LP Merchant Ltd | Wholesale & retail | 2024 |
| LP Motorsport Ltd | Arts & recreation | 2025 |
| LPL Clinical Service Ltd | Professional & scientific | 2026 |
| LPP Developments North West Ltd | Construction | 2023 |
| LS Haulage Limited | Transport & logistics | 2024 |
| LSH (NW) Ltd | Wholesale & retail | 2026 |
| LSJ Testing Ltd | Administrative & support | 2024 |
| Luca & Dora Ltd | Wholesale & retail | 2022 |
| Luca Rostron Ltd | Transport & logistics | 2025 |
| Lucas Quality Construction Ltd | Construction | 2020 |
| Lucas-Reid Plumbing & Heating Ltd | Construction | 2017 |