| Lily Hotel Blackpool Ltd | Hospitality | 2025 |
| Lily Hotel Limited | Hospitality | 2021 |
| Lilylodge Properties Limited | Real estate | 2014 |
| Lily’S Fish and Chips Limited | Hospitality | 2022 |
| Limetree Software Limited | Information & communication | 2011 |
| Limewood Builders UK Limited | Construction | 2015 |
| Limitless Control Ltd | Administrative & support | 2022 |
| Limoncello Ltd | Hospitality | 2025 |
| Lincoln Arkad Limited | Real estate | 2015 |
| Lincoln Cambell Ltd | Construction | 2021 |
| Lincoln Dover Ltd | Wholesale & retail | 2025 |
| Lincoln Letterbox Marketing Ltd | Professional & scientific | 2018 |
| Linden Medical Ltd | Health & social care | 2003 |
| Lindsay F Oram Architect Limited | Professional & scientific | 2017 |
| Lings NW Limited | Arts & recreation | 2026 |
| Link MAG Ltd | Professional & scientific | 2022 |
| Links Gate Property Management Limited | Households | 1990 |
| Links Signs and Graphics Limited | Administrative & support | 2007 |
| Linkwell Care Ltd | Administrative & support | 2025 |
| Linrone Funeral Home Limited | Other services | 2010 |
| Linted Property Ltd | Real estate | 2024 |
| Lionel Vinyl Enterprises Limited | Arts & recreation | 1999 |
| Lipwood Management Limited | Households | 2020 |
| Lisa Bathrooms Ltd | Wholesale & retail | 2017 |
| Lism Properties Ltd | Real estate | 2015 |
| Lisrut Properties Limited | Real estate | 2010 |
| Listfield Limited | Real estate | 1994 |
| Little Beanies Day Nursery Ltd | Health & social care | 2025 |
| Little Big Tank Limited | Information & communication | 2016 |
| Little Blackpool Events Ltd. | Hospitality | 2024 |
| Little Blossoms Nursery Limited | Health & social care | 2018 |
| Little Dreamers Nursery Limited | Health & social care | 2022 |
| Little Ethels Ltd | Agriculture & fishing | 2025 |
| Little Links Golf Ltd | Hospitality | 2024 |
| Little Robot Digital Ltd | Information & communication | 2017 |
| Little Touches Ltd | Administrative & support | 2020 |
| Littleblackpug (LE) Ltd | Hospitality | 2023 |
| Littlebrush Property Ltd | Real estate | 2014 |
| Littlewood Manor Ltd | Health & social care | 2024 |
| Litton Group Ltd | Wholesale & retail | 2025 |
| Litwelluk Limited | Information & communication | 2015 |
| Live Boldly Ltd | Professional & scientific | 2025 |
| Live Happy Limited | Health & social care | 2014 |
| Live in Blackpool Limited | Health & social care | 2015 |
| Live Unbranded Limited | Wholesale & retail | 2020 |
| Livelee Homes Ltd | Real estate | 2024 |
| Livelee Ltd | Professional & scientific | 2015 |
| Liverpool Film Initiative Ltd | Information & communication | 2019 |
| Liveseys Repairs Ltd | Manufacturing | 2019 |
| Living Cheer Ltd | Wholesale & retail | 2019 |
| Liviuluchianpro Ltd | Transport & logistics | 2025 |
| Liwayway Services Ltd | Health & social care | 2016 |
| LJ Ward Hair Design Ltd | Other services | 2020 |
| LJM Technical Solutions Ltd | Professional & scientific | 2017 |
| LJS Offshore Electrical Services Limited | Mining & quarrying | 2013 |
| Ljss Risk Consulting Limited | Professional & scientific | 2013 |
| LJT Systems Limited | Information & communication | 2001 |
| LKL Solutions Ltd | Manufacturing | 2013 |
| Lkrn Ltd | Other services | 2022 |
| LLD Enterprise Data Limited | Wholesale & retail | 2017 |
| LLD Original Ltd | Extraterritorial | 2020 |
| LLG Medical Limited | Wholesale & retail | 2012 |
| Lloyd & Co Security Solutions NW Limited | Administrative & support | 2024 |
| Lloyd Holdings Ltd | Financial services | 2021 |
| Lloyd Motors Blackpool Limited | Extraterritorial | 1975 |
| LLS Engineering Limited | Professional & scientific | 2024 |
| LMA Creative Management Ltd | Information & communication | 2016 |
| LMC Drop Ltd | Transport & logistics | 2025 |
| LMG Group Ltd | Information & communication | 2022 |
| LMJ Transport Services Limited | Transport & logistics | 2026 |
| LN LRO Limited | Professional & scientific | 2026 |
| LN2 Limited | Hospitality | 2017 |
| LNC Joinery Ltd | Construction | 2014 |
| Lo-Cal Cook House Limited | Administrative & support | 2017 |
| Loadstar Digital Ltd | Information & communication | 2018 |
| Lobster Consultants Ltd | Information & communication | 2019 |
| Local Mini Market Harrowside Ltd | Wholesale & retail | 2024 |
| Local Mini Market Limited | Wholesale & retail | 2023 |
| Local Web Service Ltd | Information & communication | 2012 |
| Location Lettings Ltd | Real estate | 2023 |
| Lockfit (Blackpool) Ltd | Construction | 2021 |
| Lockfit (Preston) Ltd | Construction | 2021 |
| Lockhart Jones Limited | Administrative & support | 2003 |
| Locky Holdings Ltd | Financial services | 2024 |
| Lodge Court Limited | Households | 1987 |
| Logic Coding Team Limited | Information & communication | 2026 |
| Logistic Solutions (NW) Ltd | Wholesale & retail | 2015 |
| Logistics by AR Ltd | Transport & logistics | 2025 |
| Logistics by SR Ltd | Transport & logistics | 2023 |
| Logistics Transformation Company Limited | Information & communication | 2021 |
| Lohas Ventures UK Ltd | Wholesale & retail | 2021 |
| LOL Holdings Ltd | Financial services | 2017 |
| Lolley TKD Holdings Ltd | Arts & recreation | 2022 |
| Lomas Brothers Joinery Limited | Construction | 2024 |
| Lomax & Chow Ltd | Real estate | 2021 |
| London Academy of Continuing Education Limited | Education | 2010 |
| London Leathers Direct Limited | Extraterritorial | 1995 |
| London School of Executive Education Limited | Education | 2015 |
| London West END Partnership LLP | | 2013 |
| Lone Isle Limited | Information & communication | 2011 |