| Leeds UK Group Limited | Transport & logistics | 2026 |
| Leeds Ultra Fast Couriers Ltd | Transport & logistics | 2025 |
| Leeds Unique Limited | Wholesale & retail | 2005 |
| Leeds United College Limited | Education | 2019 |
| Leeds United Football Club Limited | Arts & recreation | 2007 |
| Leeds United Women Football Club Limited | Arts & recreation | 2021 |
| Leeds University Press Limited | Information & communication | 1946 |
| Leeds University Union | Other services | 2010 |
| Leeds Upper GI Surgery Limited | Health & social care | 2016 |
| Leeds Vascular Clinic Ltd | Health & social care | 2019 |
| Leeds Vascular Limited | Health & social care | 2025 |
| Leeds Venetian Plastering Limited | Extraterritorial | 2022 |
| Leeds Ventures Limited | Education | 2008 |
| Leeds Weekend Care Association | Health & social care | 1999 |
| Leeds Welding Company Limited(The) | Manufacturing | 1944 |
| Leeds Wellbeing Ltd | Health & social care | 2015 |
| Leeds West Indian Carnival | Arts & recreation | 2004 |
| Leeds West Indian Centre Charitable Trust | Arts & recreation | 2000 |
| Leeds West Indian Centre Limited(The) | Hospitality | 1982 |
| Leeds Window Tints Ltd | Other services | 2024 |
| Leeds Windows & Doors Limited | Administrative & support | 2010 |
| Leeds Wine Company Limited | Hospitality | 2022 |
| Leeds Wine School Ltd | Hospitality | 2025 |
| Leeds Wood Recycling CIC | Manufacturing | 2018 |
| Leeds Works Ltd | Information & communication | 2024 |
| Leeds-Engineering Solutions Limited | Manufacturing | 1982 |
| Leeds-Well Ltd | Real estate | 2021 |
| Leeds.Rent Ltd | Real estate | 2012 |
| Leedsgate Ltd | Real estate | 2018 |
| Leedsshinners Ltd | Administrative & support | 2021 |
| Leedstraumatherapy Ltd | Health & social care | 2022 |
| Leeks Motors Limited | Wholesale & retail | 2010 |
| Leelak Ltd | Other services | 2018 |
| Leelalaher Properties Ltd | Real estate | 2025 |
| LEELALAHER24 Ltd | Wholesale & retail | 2025 |
| Leelavati Ltd | Wholesale & retail | 2025 |
| Leelo Mini Market Ltd | Wholesale & retail | 2022 |
| Leeman Property Limited | Real estate | 2013 |
| Leend Ltd | Administrative & support | 2013 |
| LEEP1 CIC | Health & social care | 2010 |
| LEF Services Ltd | Real estate | 2026 |
| Lefevre Media Limited | Information & communication | 2006 |
| Left Bank Leeds Charitable Trust | Arts & recreation | 2009 |
| Left Bank Leeds CIC | Arts & recreation | 2011 |
| Left EYE Blind Productions Ltd | Information & communication | 2011 |
| Legacy Agency Limited | Health & social care | 2022 |
| Legacy Care Advisory Ltd | Financial services | 2026 |
| Legacy Healthcare Leeds Ltd | Health & social care | 2026 |
| Legacy Intellectual Property Copyright Limited | Administrative & support | 2025 |
| Legacy Property and Letting Limited | Real estate | 2025 |
| Legacy Property Holdings SA Ltd | Real estate | 2025 |
| Legacy Publishers Ltd | Information & communication | 2023 |
| Legacy Stadium Limited | Real estate | 2017 |
| Legacyluxury Properties Limited | Real estate | 2025 |
| Legal & Commercial Consultancy Ltd | Professional & scientific | 2017 |
| Legal & Commercial Support 1 Limited | Information & communication | 2018 |
| Legal & Commercial Support 2 Limited | Information & communication | 2018 |
| Legal and Tax Company Ltd | Professional & scientific | 2013 |
| Legal at Work Limited | Real estate | 2004 |
| Legal ENT Ltd | Health & social care | 2022 |
| Legal First Ltd | Other services | 2020 |
| Legal Flow Ltd | Information & communication | 2026 |
| Legal Marketing Search Ltd | Administrative & support | 2023 |
| Legal Sprinkle Dealers Limited | Hospitality | 2022 |
| Legatia Beauty Ltd | Wholesale & retail | 2022 |
| Legend Barbers Limited | Other services | 2017 |
| Legends (Cheetham) Ltd | Hospitality | 2023 |
| Legends Bradford Trading Ltd | Hospitality | 2023 |
| Legends Franchise Ltd | Hospitality | 2025 |
| Legends Harehills Ltd | Hospitality | 2024 |
| Legends Huddersfield Trading Co. Ltd | Hospitality | 2023 |
| Legends Keighley Ltd | Hospitality | 2025 |
| Legends LS12 Ltd | Hospitality | 2021 |
| Legends Manchester Trading Co Ltd | Hospitality | 2023 |
| Legends Wakefield Ltd | Hospitality | 2025 |
| LEI Projects Limited | Construction | 2023 |
| Leicester Environmental LLP | | 2018 |
| Leigh Bromby Coaching Limited | Arts & recreation | 2024 |
| Leigh Lineham Limited | Professional & scientific | 1931 |
| Leighton Bryson Limited | Real estate | 2015 |
| Leighton HR Consultancy Ltd | Professional & scientific | 2017 |
| Leightoni Ltd | Professional & scientific | 2012 |
| Leila Curry Insight Ltd | Real estate | 2012 |
| Leisure and Hotel Investments Limited | Real estate | 2018 |
| Leisure Inn Developments (the Bull) Limited | Real estate | 2004 |
| Leisure Insights Consultancy Ltd | Professional & scientific | 2021 |
| Leisure Life Windows Limited | | 1990 |
| Leisure Machine Solutions Limited | Administrative & support | 2000 |
| LEL Group Limited | Financial services | 2022 |
| Lello and Monkey Limited | Wholesale & retail | 2014 |
| Lelou Consultancy Limited | Professional & scientific | 2023 |
| LEM Sporting Ltd | Agriculture & fishing | 2020 |
| Lemac Civils Ltd | Construction | 2025 |
| Lemar Children's Fashions Limited | Wholesale & retail | 1991 |
| Lemon and Lime Electrical Ltd | Construction | 2019 |
| Lemon Balm Therapeutic Horticulture Community Interest Company | Other services | 2015 |
| Lemon Hair and Beauty Spa Limited | Other services | 2012 |
| Lemon Lettings Ltd | Real estate | 2017 |
| Lemon Locksmith Ltd | Other services | 2025 |
| Lemonade Insight Ltd | Professional & scientific | 2025 |