| Little Oaks Day Nursery Limited | Health & social care | 2002 |
| Little Orange Catering Ltd | Hospitality | 2020 |
| Little Robin's Childcare Limited | Education | 2011 |
| Little Robins Education Limited | Education | 2025 |
| Little Robins Holdings Limited | Financial services | 2021 |
| Little Stars Health Hub Ltd | Health & social care | 2026 |
| Little Steps Big Dreams CIC | Education | 2025 |
| Little Tinks Childcare Limited | Health & social care | 2016 |
| Littul Gifts Limited | Wholesale & retail | 2020 |
| Live My Best Life Limited | Education | 2019 |
| Live Online Ltd | Wholesale & retail | 2019 |
| Liverpool Boat Tours Ltd | Administrative & support | 2018 |
| Livingbreeze Ltd | Wholesale & retail | 2024 |
| Liya Motors Ltd | Wholesale & retail | 2024 |
| LJ Clarkson Limited | Wholesale & retail | 2025 |
| LJC Logistics Ltd | Transport & logistics | 2026 |
| Lkan Properties Limited | Real estate | 2025 |
| LLB Cleaning Services Ltd | Administrative & support | 2024 |
| Lloyd & Townsend Limited | Wholesale & retail | 2020 |
| Lloyd Construction Limited | Construction | 2016 |
| Lloyd Omibeku Limited | Wholesale & retail | 2023 |
| Lloyd Project Services Ltd | Professional & scientific | 2025 |
| LM Construction Equipment Ltd | Administrative & support | 2025 |
| LM Installations UK Ltd | Manufacturing | 2009 |
| LM Medica Ltd | Health & social care | 2026 |
| LM Visuals Limited | Information & communication | 2025 |
| LMA Transport Ltd | Transport & logistics | 2022 |
| Lmfaesthetics Ltd | Other services | 2026 |
| Lmnt Property Limited | Real estate | 2017 |
| LMS Holdings Staffordshire Limited | Real estate | 2025 |
| Lmvc Limited | Professional & scientific | 2023 |
| LO LOW Ltd | Wholesale & retail | 2022 |
| LO Property 4U Ltd | Real estate | 2025 |
| LO Sourcing Ltd | Real estate | 2025 |
| Local Service 4U Ltd | Information & communication | 2025 |
| Localflow Plumbing Limited | Construction | 2025 |
| Localrun (Decorating) Limited | Construction | 1997 |
| Locksafe Storage Ltd | Administrative & support | 2024 |
| Lockside Hospitality Ltd | Hospitality | 2022 |
| Locum 247 Ltd | Health & social care | 2026 |
| Lodge Holdings (UK) Limited | Professional & scientific | 1999 |
| Logan Landscapes Ltd | Administrative & support | 2020 |
| Logan Property Lettings Ltd | Real estate | 2024 |
| Loganest Ltd | Wholesale & retail | 2025 |
| Logans Brewery Ltd | Hospitality | 2024 |
| Logic Labyrinth Limited | Information & communication | 2024 |
| Logic Property Lettings Ltd | Real estate | 2020 |
| Logic Racks Ltd | Information & communication | 2024 |
| Logic Resourcing Ltd | Administrative & support | 2017 |
| Logical Security Solutions Ltd | Administrative & support | 2025 |
| Logik Vorsprung Technologies Ltd | Information & communication | 2026 |
| Logistica Training and Consultancy Ltd | Other services | 2012 |
| Logistica Training Partners LLP | | 2023 |
| Logistics 109 Ltd | Transport & logistics | 2026 |
| Logomize Ltd | Administrative & support | 2023 |
| Lola Beauty Studios Limited | Other services | 2026 |
| LON Property Limited | Real estate | 2018 |
| London Bridge Property Maintenance Ltd | Construction | 2022 |
| London Paediatric Cardiology Limited | Health & social care | 2016 |
| London Payroll Systems Limited | Construction | 2024 |
| Long Range Solutions Inc Ltd | Professional & scientific | 2022 |
| Long Range Systems Holdings Ltd | Financial services | 2015 |
| Long Rest Ltd | Hospitality | 2021 |
| Longlostfamilies Ltd | Administrative & support | 2020 |
| Longport Wharf Ltd | Households | 2024 |
| Longshoot Ltd | Wholesale & retail | 2021 |
| Longton 2028 CIC | Education | 2022 |
| Longton Autobody Centre Limited | Wholesale & retail | 2024 |
| Longton Delight Fast Food Limited | Hospitality | 2024 |
| Longton Drinks Ltd | Wholesale & retail | 2026 |
| Longton Elec Properties Ltd | Real estate | 2025 |
| Longton Electrical Contractors Ltd | Construction | 2019 |
| Longton Electrical Ltd | Construction | 2025 |
| Longton Fast Food Ltd | Hospitality | 2025 |
| Longton Fine China Ltd | Manufacturing | 2025 |
| Longton Fisheries Ltd | Hospitality | 2015 |
| Longton Glass (Double Glazing) Limited | Construction | 1980 |
| Longton Glass (Holdings) Limited | Professional & scientific | 1988 |
| Longton Light Alloys Incorporating Gladstone Engineering Company Limited | Manufacturing | 1978 |
| Longton Motor Accessories Limited | Wholesale & retail | 2003 |
| Longton Motors Ltd | Wholesale & retail | 2025 |
| Longton Nails Limited | Other services | 2011 |
| Longton Pizza Ltd | Hospitality | 2019 |
| Longton Snooker and Pool Limited | Hospitality | 2014 |
| Longton Test Centre Ltd | Wholesale & retail | 2020 |
| Longueville Properties Limited | Real estate | 1987 |
| Loo's Direct Limited | Administrative & support | 2004 |
| Look to Cook Ltd | Wholesale & retail | 2026 |
| Lookers Birmingham Limited | Extraterritorial | 1997 |
| Lookers Colborne Limited | Wholesale & retail | 2001 |
| Lookers Leasing Limited | Wholesale & retail | 2005 |
| Lookers Limited | Wholesale & retail | 1910 |
| Lookers MB Limited | Wholesale & retail | 1973 |
| Lookers Motor Group Limited | Wholesale & retail | 1916 |
| Lookers Motor Holdings Limited | Wholesale & retail | 1958 |
| Lookers North West Limited | Extraterritorial | 1988 |
| Lookers Pension Plan Trustee Limited | Extraterritorial | 2001 |
| Lookers PPP Real Estate Holdings Limited | Other services | 2025 |
| Lookers PPP Real Estate Limited | Other services | 2025 |
| Lookers Southern Limited | Extraterritorial | 1994 |