| Lakeside Web Services Limited | Information & communication | 2025 |
| LAL DIN Properties Ltd | Real estate | 2024 |
| Lalis Properties Ltd | Real estate | 2021 |
| Lalitradingcompany Ltd | Wholesale & retail | 2025 |
| Laliuk Limited | Wholesale & retail | 2023 |
| Lamas Thermaclad Limited | Construction | 1994 |
| Lana Thai Ltd | Hospitality | 2024 |
| Lancashire AG Limited | Agriculture & fishing | 2017 |
| Lancashire Agricultural Contractors Ltd | Agriculture & fishing | 2012 |
| Lancashire Barbers Ltd | Other services | 2026 |
| Lancashire BUS Ltd | Transport & logistics | 2018 |
| Lancashire Construction and Plant Training Limited | Administrative & support | 2021 |
| Lancashire Light Commercial Ltd | Wholesale & retail | 2013 |
| Lancashire Light Services Ltd | Wholesale & retail | 2020 |
| Lancaster Park & Animal Farm Ltd | Administrative & support | 2013 |
| Landlord Energy Hub Ltd | Information & communication | 2026 |
| Landlord PAL Ltd | Information & communication | 2020 |
| Landmarks Builders Limited | Construction | 2002 |
| Landmarks Properties Limited | Real estate | 2003 |
| Lane Head Clinical Consultancy Ltd | Professional & scientific | 2021 |
| Langham House Environmental Services Limited | Professional & scientific | 2008 |
| Langton Architecture UK Ltd | Construction | 2016 |
| Langton Associates UK Limited | Professional & scientific | 2005 |
| Lansdowne Motors Limited | Wholesale & retail | 2012 |
| Lansdowne Trading Services Limited | Transport & logistics | 1996 |
| Lapis Construction Limited | Construction | 2022 |
| Lara Pizza Potato Ltd | Hospitality | 2023 |
| Larch Developments Limited | Professional & scientific | 2008 |
| Large Life Limited | Administrative & support | 2003 |
| Larp Leather Ltd | Wholesale & retail | 2021 |
| LAS Property Investing Ltd | Real estate | 2023 |
| Laser Medix Ltd | Manufacturing | 2026 |
| Lash OUT Loud Ltd | Other services | 2023 |
| Lashing OUT Loud Ltd | Other services | 2025 |
| Lassa Limited | Information & communication | 2019 |
| Lassani Tech Ltd | Wholesale & retail | 2020 |
| Latics Driver Training Limited | Education | 2005 |
| Latics Lettings Ltd | Real estate | 2018 |
| Latitude Healthcare Ltd | Wholesale & retail | 2023 |
| Latties Sea Moss Ltd | Manufacturing | 2024 |
| Laufey Ltd | Professional & scientific | 2023 |
| Laundery Hub Ltd | Other services | 2025 |
| Laura Kutereba Ltd | Health & social care | 2008 |
| Laura Aikman Ltd | Arts & recreation | 2026 |
| Laura Carnaby Ltd | Real estate | 2021 |
| Laura Jayne Supplies Ltd | Wholesale & retail | 2023 |
| Laureates Place Self Build Limited | Construction | 2013 |
| Laureates Place Springhead Limited | Households | 2025 |
| Laurell Ltd | Construction | 2014 |
| Lauren Simon Collection Ltd | Wholesale & retail | 2026 |
| Laurenn LUX Limited | Other services | 2025 |
| Lavorano Ltd | Wholesale & retail | 2022 |
| Lawmans Solicitors Ltd | Professional & scientific | 2015 |
| Lawrence Perrins & Sons Ltd | Real estate | 2021 |
| Lawta Holdings Ltd | Financial services | 2026 |
| Layaali Clothing Ltd | Wholesale & retail | 2026 |
| Layer by Layer Prints Ltd | Wholesale & retail | 2025 |
| Lazy Leopard Textiles Limited | Wholesale & retail | 2020 |
| LB Landscapes Patios & Drives Ltd | Administrative & support | 2025 |
| LB Media Services Limited | Professional & scientific | 2024 |
| LB Oldham Ltd | Wholesale & retail | 2021 |
| LB29 Ltd | Health & social care | 2016 |
| LBA Accountancy Limited | Professional & scientific | 2013 |
| LBA Scripts Limited | Information & communication | 2019 |
| Lbode Ltd | Manufacturing | 2021 |
| LBR Restaurant Ltd | Hospitality | 2025 |
| LBS Family Holdings Limited | Financial services | 2026 |
| LC Academy Limited | Arts & recreation | 2020 |
| LC Distributions Ltd | Wholesale & retail | 2026 |
| Lc&Ec Property Investments Ltd | Real estate | 2022 |
| LCC Consult Limited | Administrative & support | 2020 |
| LCC Holdings (NW) Limited | Real estate | 2022 |
| LCD Consultants Ltd | Administrative & support | 2013 |
| LCE Golf Academy Ltd | Arts & recreation | 2025 |
| LCE Investments Ltd | Real estate | 2025 |
| LCE Tuition Ltd | Education | 2025 |
| LCL Properties Rochdale Limited | Real estate | 2019 |
| Lcms Consulting Limited | Information & communication | 2026 |
| LCP Consultancy Limited | Professional & scientific | 2025 |
| Lcst Acquisitions Limited | Professional & scientific | 2010 |
| LCT Care Ltd | Health & social care | 2024 |
| Ldjr Ltd | Manufacturing | 2020 |
| LDN Transformation Ltd | Education | 2025 |
| LE Cochonnet Restaurants Limited | Hospitality | 2014 |
| Lead Genesis Associates Ltd | Professional & scientific | 2013 |
| Lead Source Limited | Financial services | 2001 |
| Leadcast Ltd | Real estate | 2008 |
| Leading Strategy Ltd | Professional & scientific | 2023 |
| Leads 4 Work Limited | Professional & scientific | 2026 |
| Leadstone Group Limited | Professional & scientific | 2026 |
| Leaf Community Team Ltd | Health & social care | 2019 |
| Leaf.Io Limited | Administrative & support | 2023 |
| Leaflets R US Limited | Manufacturing | 2019 |
| Leagram Properties Ltd | Real estate | 2023 |
| Leah Fast Food Ltd | Hospitality | 2026 |
| Leaksystem Global Ltd | Information & communication | 2012 |
| Leaksystem Ltd | Information & communication | 2011 |
| Leamington Consulting Limited | Professional & scientific | 2021 |
| Leanintodesign Ltd. | Professional & scientific | 2017 |
| Lear Property Services Ltd | Professional & scientific | 2026 |