| Law MAX Ltd | Wholesale & retail | 2010 |
| Lawa Lounge Limited | Hospitality | 2025 |
| Lawal Footage Ltd | Information & communication | 2023 |
| Lawcris Panel Products Limited | Wholesale & retail | 1982 |
| Lawdy Ltd | Information & communication | 2024 |
| Lawncare Limited | Real estate | 2017 |
| Lawndale Architectural Design Ltd | Construction | 2024 |
| Lawns Hall Management Company Limited | Households | 1983 |
| Lawrence House (Pudsey) Management Company Limited | Households | 2001 |
| Lawrence Newbrook Properties Ltd | Real estate | 2025 |
| Lawrooms Ltd | Education | 2008 |
| Lawsco Holdings Limited | Financial services | 2008 |
| Lawson & Co - Cyber Strategies Ltd | Information & communication | 2025 |
| Lawson & Pimblott Ltd | Real estate | 2024 |
| Lawson Building Consultancy Limited | Professional & scientific | 2014 |
| Lawson Building Surveyors Ltd | Professional & scientific | 2022 |
| Lawson Hubbard Lowe Limited | Professional & scientific | 1977 |
| Lawson Peel Limited | Wholesale & retail | 1989 |
| Lawthopaedics Limited | Health & social care | 2023 |
| Lawthority Ltd | Other services | 2012 |
| Lawton Conyers Limited | Wholesale & retail | 2025 |
| Lawton International Freight Limited | Transport & logistics | 2014 |
| LAX & Shaw Limited | Manufacturing | 1913 |
| LAX Locums Ltd | Health & social care | 2017 |
| Layali Coffee Shop Ltd | Hospitality | 2022 |
| Layer 8 Secure Ltd. | Administrative & support | 2025 |
| Layer Seven Technical Services Limited | Information & communication | 2022 |
| Layla Dream Media Ltd | Professional & scientific | 2026 |
| Layla's Snack Bar Ltd | Hospitality | 2019 |
| Laynes Bakery Ltd | Manufacturing | 2022 |
| Laynes Coffee and Bakery Ltd | Hospitality | 2023 |
| Layon Ltd | Wholesale & retail | 2025 |
| Layshire Limited | Financial services | 1973 |
| Layton Plumbing & Heating Limited | Administrative & support | 2008 |
| Lazar 2026 Logistics Ltd | Transport & logistics | 2026 |
| Lazar Drinks Limited | Wholesale & retail | 2024 |
| Lazar Properties Ltd | Extraterritorial | 1998 |
| Lazarus Legal Ltd | Professional & scientific | 2025 |
| Lazar’S Driving Ltd | Transport & logistics | 2025 |
| Lazenbys Financial Services Limited | Financial services | 2012 |
| Lazencroft Farm Ltd | Real estate | 2024 |
| Lazy Cover Ltd | Construction | 2024 |
| Lazy Daisy (Leeds) Ltd | Hospitality | 2018 |
| Lazy Trading Limited | Hospitality | 2012 |
| LB ACT Ltd | Information & communication | 2017 |
| LB Cleaning Company Ltd | Administrative & support | 2022 |
| LB Dessert Company Limited | Hospitality | 2026 |
| LB Engineering Consultants Ltd | Construction | 2018 |
| LB Europe Limited | Manufacturing | 1993 |
| LB Groundworks and Landscaping Limited | Construction | 2026 |
| LB Handyman Limited | Construction | 2018 |
| LB Investment Group Ltd | Financial services | 2025 |
| LB Lomond Investments | Professional & scientific | 2003 |
| LB Plumbing Ltd | Construction | 2021 |
| LB1 Landscaping Ltd | Professional & scientific | 2020 |
| LBA Midco 1 Limited | Financial services | 2017 |
| LBA Midco 2 Limited | Financial services | 2017 |
| LBA Services Limited | Other services | 2015 |
| Lbbc Beechwood Limited | Manufacturing | 2010 |
| Lbbc Limited | Manufacturing | 2010 |
| Lbbc Technologies Limited | Manufacturing | 2010 |
| LBD Guiseley Ltd | Wholesale & retail | 1999 |
| LBL Lettings Ltd | Real estate | 2024 |
| LBM Collective Limited | Financial services | 2021 |
| LBM PH Limited | Hospitality | 2021 |
| Lbmb Properties Limited | Real estate | 2025 |
| LBO Investments Limited | Professional & scientific | 2001 |
| LBQ Funding (UK) | Professional & scientific | 2001 |
| LBZ Yorkshire Ltd | Health & social care | 2017 |
| LC & TL Property Ltd | Real estate | 2022 |
| LC Analytics Limited | Information & communication | 2024 |
| LC Kitchens, Bedrooms & Bathrooms Installation Ltd | Construction | 2020 |
| LC Leeds Bike Shop Ltd | Wholesale & retail | 2019 |
| LC Media Ltd | Administrative & support | 2010 |
| LC Properties Management Limited | Households | 2025 |
| LC Vehicle Hire Ltd | Extraterritorial | 2010 |
| Lcass Creative Ltd | Professional & scientific | 2022 |
| LCB Investment (Leeds) Ltd | Real estate | 2022 |
| LCC Restorations Limited | Construction | 1999 |
| Lcclf Trading Limited | Hospitality | 2019 |
| LCD Repair LAB Limited | Other services | 2015 |
| LCE Solutions Limited | Information & communication | 2015 |
| LCF Leeds Ltd | Wholesale & retail | 2025 |
| LCI Trading Limited | Real estate | 2011 |
| LCM Bodyshop Ltd | Wholesale & retail | 2025 |
| LCM Family Limited | Financial services | 2003 |
| LCT Technology Solutions Ltd | Information & communication | 2017 |
| LD Armley Ltd | Hospitality | 2024 |
| LD Home Estates Limited | Real estate | 2024 |
| LD Interior Design Solutions Ltd | Wholesale & retail | 2024 |
| LD Liverpool Ltd | Hospitality | 2025 |
| LD Transport Ltd | Transport & logistics | 2024 |
| Ld&W Ltd | Manufacturing | 2022 |
| Ldbit Services Limited | Administrative & support | 2014 |
| LDC Commercial Decorating Limited | Construction | 2024 |
| LDC Developments Limited | Construction | 2024 |
| LDC Harrogate Ltd | Hospitality | 2026 |
| LDC Plastering Ltd | Construction | 2025 |
| LDC Sales Ltd | Wholesale & retail | 2025 |
| LDH Solutions Ltd | Manufacturing | 2025 |