| Lemondynamics Ltd | Information & communication | 2026 |
| Lemonwood Limited | Professional & scientific | 2019 |
| Lemos Consulting Ltd | Information & communication | 2021 |
| Lemsten Ltd | Wholesale & retail | 2019 |
| Lend My Look Limited | Administrative & support | 2025 |
| Lending Logic Limited | Financial services | 2026 |
| Lengo Marketplace Global Ltd | Wholesale & retail | 2026 |
| Lengths by Melissa Ltd | Other services | 2022 |
| Lenik Wedding Cinematography Limited | Information & communication | 2012 |
| Lenin.Mart Ltd | Wholesale & retail | 2026 |
| Lenox Property Investments Limited | Real estate | 2005 |
| Lens LAB Leeds Ltd | Professional & scientific | 2020 |
| Lensmart Limited | Health & social care | 2001 |
| Lenton Roberts Estates Limited | Real estate | 2021 |
| LEO 2 SAT Limited | Wholesale & retail | 2026 |
| LEO Barbers Leeds Limited | Other services | 2023 |
| LEO Best Kitchens Ltd | Hospitality | 2023 |
| LEO Courier Ltd | Transport & logistics | 2025 |
| LEO SHU Consulting Ltd | Professional & scientific | 2024 |
| Leochup Ltd | Professional & scientific | 2015 |
| Leocom Ltd | Information & communication | 2024 |
| Leodian Limited | Real estate | 2004 |
| Leodiensian Sports Club (Commercial) Ltd | Hospitality | 2025 |
| Leodiensian Sports Club Limited | Arts & recreation | 2016 |
| Leodis Business Systems Limited | Professional & scientific | 1999 |
| Leodis Coffee Limited | Wholesale & retail | 2015 |
| Leodis Commercial Ltd | Construction | 2019 |
| Leodis Construction Services Ltd | Construction | 2020 |
| Leodis Consultancy Ltd | Professional & scientific | 2017 |
| Leodis Consulting Ltd | Professional & scientific | 2024 |
| Leodis Damp Control Limited | Construction | 2025 |
| Leodis Drainage Solutions Ltd | Water & waste | 2024 |
| Leodis Electrical Ltd | Construction | 2021 |
| Leodis Finance Ltd | Financial services | 2023 |
| Leodis Fires Ltd | Construction | 2019 |
| Leodis GAS & Property Services Ltd | Real estate | 2021 |
| Leodis GAS Limited | Construction | 2015 |
| Leodis Gym Ltd | Arts & recreation | 2012 |
| Leodis Limited | Real estate | 2016 |
| Leodis Properties Ltd | Extraterritorial | 2020 |
| Leodis Site Services Ltd. | Transport & logistics | 2012 |
| Leodis Stairlifts Limited | Manufacturing | 2008 |
| Leodis Talent Ltd | Professional & scientific | 2024 |
| Leodis Wealth Limited | Professional & scientific | 2015 |
| Leodis West Limited | Real estate | 2017 |
| Leomax Designs Ltd | Wholesale & retail | 2011 |
| Leon and Company Financial Services Ltd | Financial services | 2019 |
| Leon Bamforth Associates Limited | Professional & scientific | 2017 |
| Leon Campbell Limited | Information & communication | 2006 |
| Leon York Consulting Limited | Information & communication | 2025 |
| Leonard Cooper Limited | Construction | 1919 |
| Leoncino Ltd | Hospitality | 2019 |
| Leonias Ltd | Professional & scientific | 2025 |
| Leonidas Capital Limited | Administrative & support | 2018 |
| Leopard Hotel 7 Limited | Real estate | 2024 |
| Lepadreuk Ltd | Transport & logistics | 2026 |
| Lepidroc Limited | Health & social care | 2005 |
| Lerada Limited | Wholesale & retail | 2011 |
| Lerner Research Limited | Information & communication | 2019 |
| Lero Leeds CIC | Health & social care | 2025 |
| LES Creatif Holdings Ltd | Administrative & support | 2024 |
| LES K Power Tools Ltd | Wholesale & retail | 2004 |
| LES Petits Linguistes UK Ltd | Education | 2011 |
| Lesedi Services Limited | Professional & scientific | 2017 |
| Lesley Haigh Limited | Administrative & support | 2024 |
| Lesley's Private Day Nursery Limited | Health & social care | 2012 |
| Leslie Associates Limited | Construction | 2016 |
| Lester Campbell Holding Company Limited | Financial services | 2025 |
| Lester Campbell LLP | | 2015 |
| Lester Davis Limited | Wholesale & retail | 2016 |
| Lester Goddard Limited | Administrative & support | 2019 |
| Lesvyb Ltd | Wholesale & retail | 2026 |
| LET Leeds Limited | Hospitality | 2024 |
| LET the Car Go Ltd | Information & communication | 2020 |
| LET Unique Properties Ltd | Real estate | 2022 |
| Let's GET Lathered! Ltd | Manufacturing | 2020 |
| Let's Go Leeds Ltd | Real estate | 2022 |
| Letafet HG Limited | Education | 2025 |
| Lether's Properties Ltd | Real estate | 2025 |
| Lether's Travel Ltd | Transport & logistics | 2022 |
| Lethers External Cleaning Ltd | Administrative & support | 2026 |
| Lethome (Yorkshire) Ltd | Real estate | 2023 |
| Lethu Designs Ltd | Professional & scientific | 2022 |
| Letrich Properties Ltd | Real estate | 2026 |
| Lets Build Homes Limited | Construction | 2018 |
| Lets Clean Leeds Ltd | Administrative & support | 2024 |
| Lets Cleanit 4U Ltd | Administrative & support | 2025 |
| Lets Compare Ltd | Financial services | 2013 |
| Lets Dance Agency Ltd | Information & communication | 2025 |
| Lets Go Leeds (Sales and Investment) Limited | Real estate | 2026 |
| Lets Head North Limited | Real estate | 2025 |
| Lets Live Leeds Limited | Administrative & support | 2011 |
| Lets Move Conveyancing Limited | Professional & scientific | 2019 |
| Lets Rent Referencing UK Limited | Real estate | 2022 |
| Letsletleeds Ltd | Real estate | 2023 |
| Lettel Company Ltd | Real estate | 2022 |
| Lettings Agency Leeds Ltd | Real estate | 2023 |
| Lettings Manchester Ltd | Hospitality | 2023 |
| Letwell Accommodation Ltd | Real estate | 2023 |
| LEV Testing Limited | Professional & scientific | 2009 |