| Landers Offshore and Renewable Energy Ltd | Manufacturing | 2024 |
| Landmaster 2020 Ltd | Administrative & support | 2019 |
| Laney's Grab Ltd | Water & waste | 2025 |
| Lansdowne Minimart Ltd | Wholesale & retail | 2019 |
| LAS Vegas Easy Wash Ltd | Administrative & support | 2024 |
| Lash Amoré Ltd | Wholesale & retail | 2023 |
| Laura Wilcockson People Advisory Limited | Administrative & support | 2026 |
| Laurance Investments Limited | Real estate | 2020 |
| Laurieston Properties LLP | | 2024 |
| Lawtons Furniture Limited | Wholesale & retail | 2008 |
| LBV Professional Limited | Wholesale & retail | 2017 |
| LD Land LLP | | 2008 |
| Ldra Limited | Information & communication | 1975 |
| LE Sanderson Ltd | Transport & logistics | 2025 |
| LE Vert Wirral Ltd | Hospitality | 2026 |
| Lead Pronto Ltd | Professional & scientific | 2018 |
| Learning & Development Multicultural Centre Ltd | Administrative & support | 2017 |
| Leasebrick Limited | Construction | 2000 |
| Lecru Limited | Information & communication | 1981 |
| Legacy Accommodation Ltd | Hospitality | 2022 |
| Legerdemain Ltd | Information & communication | 2026 |
| LEI Consulting Limited | Information & communication | 2006 |
| Leigh Sacred Heart Mortgages Ltd | Administrative & support | 2017 |
| Leighton James Edwards Limited | Construction | 2016 |
| Lemeduit Ltd | Real estate | 2023 |
| LEO Signs & Graphics Limited | Professional & scientific | 2020 |
| Lerman Quaile Limited | Professional & scientific | 1991 |
| Lery Resources Limited | Real estate | 2023 |
| Let's Go! Publishing Limited | Information & communication | 2008 |
| Lets Buy More Limited | Wholesale & retail | 2026 |
| Lets Play Padel Limited | Arts & recreation | 2025 |
| LEV International Limited | Administrative & support | 2016 |
| Level 2 Architects Ltd | Professional & scientific | 2021 |
| Leverbrook (Export) Limited | Other services | 1978 |
| Lewis Butchers (Greasby) Ltd | Wholesale & retail | 2016 |
| Lewis Thomas Electrical Services Limited | Construction | 2015 |
| Le’Ma Logistics Ltd | Transport & logistics | 2025 |
| Liam Bennett Property Ltd | Real estate | 2025 |
| Liberty Bell After 5 Ltd | Hospitality | 2026 |
| Liberty Bell Coffeehouse Ltd | Hospitality | 2024 |
| Liberty White Associates Limited | Construction | 2016 |
| Lienocin Scents Ltd | Wholesale & retail | 2026 |
| Life of Freedom Ltd | Professional & scientific | 2025 |
| Life PAY Ltd | Professional & scientific | 2016 |
| Lifebloom Ltd | Real estate | 2022 |
| Light EM UP Electrical Ltd | Construction | 2024 |
| Light Speed Manufacturing Limited | Manufacturing | 2006 |
| Light Speed Utilities Limited | Construction | 2022 |
| Lightbox Manufacturing Ltd | Manufacturing | 2014 |
| Lili Bizarre Ltd | Wholesale & retail | 2014 |
| Lille 16 Limited | Financial services | 2018 |
| Lily and Stella Limited | Wholesale & retail | 2018 |
| Lily Enterprise Limited | Wholesale & retail | 2026 |
| Lily Rose Garden Design Limited | Administrative & support | 2020 |
| Limb Shipping Services (Humberside) Limited | Transport & logistics | 1992 |
| Linden Landscapes (Wirral) Ltd | Administrative & support | 2013 |
| Linearbase Ltd | Professional & scientific | 2017 |
| Linkxmaser Ltd | Health & social care | 2026 |
| Linwood Construction Limited | Construction | 2026 |
| Lismar Properties Limited | Real estate | 2024 |
| Little Cheshire Weddings Limited | Administrative & support | 2023 |
| Little Edenville Limited | Arts & recreation | 2016 |
| Little EYE Ltd | Hospitality | 2024 |
| Little Lambs First AID Ltd | Education | 2023 |
| Little Magic Train Ltd. | Administrative & support | 2002 |
| Little Mount Limited | Real estate | 2023 |
| Live Fairytales Limited | Arts & recreation | 2015 |
| Live Manage Facilitate Limited | Construction | 2016 |
| Liver Lift Truck Training Ltd. | Education | 2016 |
| Liverlift Forktrucks Limited | Administrative & support | 1996 |
| Liverpool Boat Charter Ltd | Transport & logistics | 2012 |
| Liverpool Car Valeting Ltd | Wholesale & retail | 2022 |
| Liverpool Hand Surgery Ltd | Real estate | 2020 |
| Liverpool Housing Development Limited | Real estate | 2016 |
| Liverpool Neonatology Limited | Professional & scientific | 2017 |
| Liverpool Nightlife CIC | Administrative & support | 2020 |
| Liverton Hot Food Ltd | Hospitality | 2024 |
| Livingstone Street Community Centre CIC | Other services | 2015 |
| LJ Fibre Solutions Ltd | Information & communication | 2023 |
| LKP Associates Limited | Health & social care | 2015 |
| LLM Professional Care Ltd | Health & social care | 2018 |
| Lloyd Aerotech Ltd | Other services | 2024 |
| Lloyd Signs Ltd | Manufacturing | 2007 |
| LLR Counselling Services Ltd | Health & social care | 2023 |
| LM Bespoke Bathrooms Ltd | Construction | 2025 |
| LM Northwest Ltd | Transport & logistics | 2018 |
| LMK Legal Limited | Professional & scientific | 2021 |
| LMR Drilling UK Ltd | Construction | 1999 |
| Lmresidentialunite Limited | Health & social care | 2025 |
| Lnloh Ltd | Health & social care | 2025 |
| Load N Go Ltd | Transport & logistics | 2026 |
| Loca Limpia Ltd | Administrative & support | 2022 |
| Locarc Ltd | Professional & scientific | 2023 |
| London House Stores Dyffryn Ltd | Wholesale & retail | 2022 |
| LOOK4KEY Ltd | Wholesale & retail | 2022 |
| Lopio Ltd | Education | 2026 |
| Lost Boys Management Ltd | Professional & scientific | 2025 |
| Lost in Translation Ltd | Professional & scientific | 2026 |
| Lost Weekend Ltd | Hospitality | 2018 |
| Louis Nagy Properties Limited | Real estate | 2015 |