| LB Group Northwest Ltd | Financial services | 2026 |
| LB Technology Ltd | Information & communication | 2019 |
| LDK Construction Limited | Construction | 2004 |
| LDL Mortgages Ltd | Financial services | 2025 |
| LDT 65 Ltd | Transport & logistics | 2020 |
| LDW Holdings Limited | Real estate | 2023 |
| LEA Aura Aesthetics Ltd | Health & social care | 2025 |
| LEA Transport Limited | Transport & logistics | 2009 |
| Lead Property and Lettings Ltd | Real estate | 2022 |
| Leader 1 Limited | Construction | 2009 |
| Leaf Professional Services Ltd | Information & communication | 2023 |
| Leatherchem Plus Limited | Professional & scientific | 2010 |
| LEE Avison Photography Limited | Professional & scientific | 2015 |
| Legacy Liverpool Ltd | Real estate | 2025 |
| Leida Food Limited | Hospitality | 2026 |
| Leidor Limited | Professional & scientific | 2026 |
| Leka Finds Limited | Wholesale & retail | 2025 |
| Lemonade Living Ltd | Wholesale & retail | 2023 |
| Lets GET Away Holidays Ltd | Hospitality | 2025 |
| Levelvalue Limited | Real estate | 1998 |
| LEX Turned Parts Limited | Professional & scientific | 2003 |
| Lexicon Retail Services Limited | Wholesale & retail | 2016 |
| LF Property Maintenance Limited | Construction | 2026 |
| LG Partners Limited | Financial services | 2023 |
| LGG Consultants Ltd | Real estate | 2022 |
| LH Renovations Ltd | Real estate | 2025 |
| LH2 Ltd | Construction | 2026 |
| LHK Entertainment Limited | Arts & recreation | 2014 |
| LHK Productions Limited | Arts & recreation | 2005 |
| LIA Trading Ltd | Wholesale & retail | 2023 |
| Libbys International Limited | Professional & scientific | 2002 |
| Liberty Fitted Wardrobes Ltd | Manufacturing | 2025 |
| Lida Property Limited | Real estate | 2016 |
| Linakam Limited | Transport & logistics | 2017 |
| Linda's Kitchen Ltd | Hospitality | 2024 |
| Link Alarms Limited | Administrative & support | 2011 |
| Linkroute IT Ltd | Information & communication | 2025 |
| Liquidpeel Ltd | Construction | 2019 |
| Litebrake (Freight) Limited | | 1984 |
| Little Ange Ltd | Hospitality | 2026 |
| Little Boar Wood Ltd | Wholesale & retail | 2025 |
| Little Lucca Limited | Wholesale & retail | 2018 |
| Livcity Living Ltd | Real estate | 2020 |
| Liverpool Mobile Tyres Ltd | Wholesale & retail | 2026 |
| Liverpool Vascular Education Ltd | Education | 2026 |
| Liyanage Limited | Real estate | 2023 |
| LK Joinery Ltd | Construction | 2023 |
| Llay Convenience Ltd | Wholesale & retail | 2025 |
| LLC Property Group Ltd | Real estate | 2024 |
| Lloyd Electrical Building and Maintenance Services Limited | Construction | 2017 |
| Lloyds Engines Ltd | Manufacturing | 2019 |
| Lloyds Marketgroup (LMG) Ltd | Information & communication | 2024 |
| Llpr Property Ltd | Real estate | 2025 |
| LMC Associates Limited | Professional & scientific | 2011 |
| LMG Aesthetics & Beauty Limited | Other services | 2024 |
| LMJ Mechanical Group Ltd | Construction | 2025 |
| LMS Project Management Ltd | Construction | 2018 |
| Local Group Services Ltd | Transport & logistics | 2025 |
| Lola ENG Ltd | Professional & scientific | 2025 |
| Longevity Developments Ltd | Real estate | 2024 |
| Longevity Holdings Group Ltd | Financial services | 2024 |
| Longevity Holdings Limited | Real estate | 2017 |
| Loud and Clear Care Solutions Limited | Health & social care | 2012 |
| Loved by Nature Ltd | Wholesale & retail | 2023 |
| Lovina Flooring Ltd | Construction | 2023 |
| Lovina Properties Ltd | Real estate | 2024 |
| Loxleys (Warwick) Limited | Extraterritorial | 2015 |
| LSA Property Consultants Ltd | Real estate | 2021 |
| LT Supply Ltd | Wholesale & retail | 2023 |
| LTC Bookkeeping Limited | Professional & scientific | 2024 |
| Ltdb Limited | Other services | 2018 |
| LTN Property Management Limited | Real estate | 2025 |
| Lucaa Ltd | Other services | 2025 |
| Lucas Trans 91 Ltd | Transport & logistics | 2019 |
| Lucatech Limited | Information & communication | 2016 |
| Lucenzo Limited | Hospitality | 2025 |
| Lucky House 666 Ltd | Hospitality | 2025 |
| Lucy Wardropper Ltd | Professional & scientific | 2026 |
| Lukewarm Investments Ltd | Real estate | 2021 |
| Lukexpress Ltd | Transport & logistics | 2024 |
| Lumi Management Services Limited | Real estate | 2026 |
| LW Eco Logistics Ltd | Transport & logistics | 2026 |
| LWF UK Limited | Wholesale & retail | 2013 |
| Lymm Metals Limited | Water & waste | 2013 |
| Lythgoe Brothers Limited | Financial services | 1949 |
| M & S Property Services (NW) Ltd | Other services | 2007 |
| M & S Transfers 247 Ltd | Other services | 2024 |
| M a Construction (North West) Limited | Construction | 2019 |
| M Dodd Properties Ltd | Real estate | 2025 |
| M S - Completions Ltd | Professional & scientific | 2021 |
| M Tech Global Limited | Wholesale & retail | 2022 |
| M&A Dodd Group Limited | Real estate | 2024 |
| M&D Roofing & Cladding Ltd | Construction | 2022 |
| M&F Consultancy Services Ltd | Professional & scientific | 2021 |
| M&M Networking Ltd | Administrative & support | 2021 |
| M. & J. Burns Limited | Wholesale & retail | 1983 |
| M.A.E. Roofing Limited | Construction | 2008 |
| M.A.S Commercials Ltd | Wholesale & retail | 2018 |
| M.E.M. Industrial Roofing Limited | Construction | 2004 |
| M.I.B Reinforcement Ltd | Construction | 2016 |