| L Francis Homes Limited | Real estate | 2024 |
| L Graham Consulting Limited | Professional & scientific | 2023 |
| L Green Electrical Solutions Ltd | Construction | 2015 |
| L H Engineering Solutions Ltd | Professional & scientific | 2022 |
| L I U Eco Design Limited | Professional & scientific | 2026 |
| L J B Plumbing & Heating Ltd | Construction | 2022 |
| L J O Properties Ltd | Real estate | 2016 |
| L J S Media Limited | Wholesale & retail | 2010 |
| L Jackson Engineering Services Ltd | Professional & scientific | 2011 |
| L M Byram Ltd | Arts & recreation | 2025 |
| L M Leisure (Yorkshire) Limited | Hospitality | 2016 |
| L M Mcbride Limited | Administrative & support | 2017 |
| L M Psychotherapy Limited | Health & social care | 2011 |
| L M Stage School Ltd | Arts & recreation | 2009 |
| L N Healthcare Limited | Health & social care | 2021 |
| L Tyler Ltd | Construction | 2022 |
| L V Homes Limited | Real estate | 2006 |
| L Wright Engineering Ltd | Professional & scientific | 2024 |
| L Yeadon Strategies Ltd | Professional & scientific | 2024 |
| L&A Business Services Ltd | Financial services | 2023 |
| L&A Link Limited | Hospitality | 2011 |
| L&B Property (Leeds) Limited | Real estate | 2018 |
| L&B Site Services Ltd | Information & communication | 2019 |
| L&D Future Properties Ltd | Real estate | 2022 |
| L&D Patterson Properties Ltd | Real estate | 2026 |
| L&J Forrest Ltd | Administrative & support | 2023 |
| L&J Grab & Tipper Hire Ltd | Water & waste | 2022 |
| L&N Rentals Ltd | Real estate | 2021 |
| L&P Cafe Ltd | Hospitality | 2017 |
| L&R Lets Limited | Real estate | 2021 |
| L&R Properties Yorkshire Limited | Real estate | 2025 |
| L&S Salameh Ltd | Financial services | 2018 |
| L&W Financial Services Limited | Financial services | 2005 |
| L&Y Imports Ltd | Wholesale & retail | 2021 |
| L'Aquila MCR Ltd | Hospitality | 2020 |
| L'Arche Developments (Yorkshire) Limited | Construction | 2012 |
| L'Eclair Patisserie Ltd | Hospitality | 2020 |
| L'Ephemeride Ltd | Professional & scientific | 2020 |
| L'Jay Logistics Limited | Transport & logistics | 2024 |
| L-Tek Limited | Information & communication | 2020 |
| L. H. Wilson Limited | Real estate | 1961 |
| L. Rochelle Engineering Ltd | Professional & scientific | 2025 |
| L. Trafford Project Engineering Ltd | Wholesale & retail | 2023 |
| L. Womersley Limited | Construction | 1996 |
| L.A Yorkshire Property Partners Ltd | Real estate | 2022 |
| L.A. Westminster Limited | Arts & recreation | 1996 |
| L.A.H. Properties Limited | Real estate | 2004 |
| L.E.C.C. Leeds Ltd | Professional & scientific | 2023 |
| L.I. Electrical Services Ltd | Construction | 2022 |
| L.L Merchandise Ltd | Wholesale & retail | 2017 |
| L.P. (Import-Export) Supplies Limited | Wholesale & retail | 1978 |
| L.R Decorators Domestic Ltd | Construction | 2023 |
| L.R Decorators Ltd | Construction | 2020 |
| L.T.I Properties Limited | Households | 2025 |
| L.W. Designs Limited | Professional & scientific | 1992 |
| L.Y.S.D. Ltd | Real estate | 2017 |
| L.Y.S.D.D. Ltd | Real estate | 2017 |
| L2R Plumbing and Heating Ltd | Construction | 2025 |
| L2S Services Ltd | Administrative & support | 2026 |
| L33 Solutions Ltd | Information & communication | 2017 |
| L4 Developments Limited | Construction | 2021 |
| L6 Construction Limited | Construction | 2016 |
| L99SMB Ltd | Administrative & support | 2021 |
| LA Barra Guitarra & Rumba Ltd | Hospitality | 2021 |
| LA Bella Aesthetics and Beauty Limited | Other services | 2023 |
| LA Bella Vita (Leeds) Ltd | Hospitality | 2018 |
| LA Bottega Manchester Limited | Hospitality | 2026 |
| LA Bottega Milanese Limited | Real estate | 2021 |
| LA Bottega York Ltd | Real estate | 2022 |
| LA Boutique Leeds Ltd | Wholesale & retail | 2026 |
| LA CANTINA44 Limited | Hospitality | 2018 |
| LA Casa DE LA Habana Ltd | Wholesale & retail | 2024 |
| LA Casa Properties Limited | Households | 2019 |
| LA Case DI Caffe Limited | Hospitality | 2017 |
| LA Construction Consultants Ltd | Professional & scientific | 2024 |
| LA Derm Merchants Limited | Health & social care | 2026 |
| LA Engineering Limited | Manufacturing | 2024 |
| LA Fast Food Ltd | Hospitality | 2024 |
| LA Fiesta Leeds Limited | Hospitality | 2024 |
| LA Focaccia Limited | Hospitality | 2016 |
| LA Gachade Property Ltd | Households | 2026 |
| LA Gelatino Ltd | Hospitality | 2019 |
| LA GIA UK Ltd | Wholesale & retail | 2021 |
| LA Grande Restaurant Ltd | Hospitality | 2023 |
| LA Katangaise Cuisine Limited | Hospitality | 2021 |
| LA Leisure Limited | Arts & recreation | 1983 |
| LA Lucha Ltd | Manufacturing | 2019 |
| LA Marqueza Ltd | Manufacturing | 2019 |
| LA MIA (Yorkshire) Ltd | Hospitality | 2025 |
| LA Palmera Restaurant Limited | Hospitality | 2020 |
| LA Petite Ecole (Leeds) CIC | Education | 2014 |
| LA Pointe Boutique Limited | Wholesale & retail | 1999 |
| LA Porketta Ltd | Hospitality | 2023 |
| LA Predecessor Limited | Professional & scientific | 1970 |
| LA Regina Cafe Ltd | Hospitality | 2018 |
| LA Scaffolding Limited | Construction | 2008 |
| LA Terrasse Ltd | Hospitality | 2022 |
| LA Vida Day Spa Limited | Arts & recreation | 2019 |
| LA VIE Douce Ltd | Wholesale & retail | 2025 |
| LAB Automotive Ltd | Extraterritorial | 2023 |