| Littleborough Coffee Company Limited | Hospitality | 2025 |
| Littleharbor Homes Limited | Health & social care | 2026 |
| Littleluccasbabyboutique Ltd | Wholesale & retail | 2025 |
| Littler Locums Ltd | Health & social care | 2016 |
| Littler Winstanley Consultants Limited | Administrative & support | 2016 |
| Live ACT Enterprise Ltd | Professional & scientific | 2024 |
| Live to Ride Motorcycles UK Ltd | Wholesale & retail | 2022 |
| Livedale Foam & Sundries Limited | Manufacturing | 2003 |
| Livedale Holdings Ltd | Financial services | 2022 |
| Liveup Club Ltd | Professional & scientific | 2026 |
| Living Faith Church | Other services | 2012 |
| Living Lettings Ltd | Real estate | 2020 |
| Living With Life CIC | Education | 2012 |
| Lizgret Limited | Transport & logistics | 2018 |
| LJ Bookkeeping & Payroll Services Ltd | Professional & scientific | 2022 |
| LJ Waste Removals Ltd | Water & waste | 2024 |
| LJB Care Ltd | Health & social care | 2023 |
| LJB Home Improvements Ltd | Construction | 2023 |
| LJD Collective Ltd | Professional & scientific | 2023 |
| LJF Engineering Services Ltd | Manufacturing | 2012 |
| LJM Fire & Security Limited | Construction | 2025 |
| Ljrplumbing Limited | Construction | 2022 |
| LJT Couriers Ltd | Transport & logistics | 2021 |
| LK & CW Holdings Ltd | Financial services | 2025 |
| LKC Property Group Ltd | Real estate | 2025 |
| LKR Business Services Ltd | Professional & scientific | 2015 |
| LL HR Solutions Ltd | Professional & scientific | 2016 |
| LLA Services UK Ltd | Real estate | 2025 |
| Llef Consulting Ltd | Professional & scientific | 2026 |
| LLM Capital Partners Limited | Real estate | 2019 |
| Lloyd (L.C.S.) Ltd | Professional & scientific | 2001 |
| Lloyd Family Company Ltd | Real estate | 2024 |
| Lloyd Properties (NW) Ltd | Real estate | 2019 |
| Lloyd Smith Properties Ltd | Real estate | 2021 |
| LLR Project Services Ltd | Construction | 2025 |
| LM International Trading Ltd | Wholesale & retail | 2024 |
| Lmarkk Ltd | Wholesale & retail | 2025 |
| LMH Keycoders Ltd | Manufacturing | 2023 |
| LMK Power Ltd | Construction | 2019 |
| LMM Advisory Group Limited | Professional & scientific | 2026 |
| LMP Properties (Wigan) Ltd | Real estate | 2020 |
| Lmpn Construction Ltd | Construction | 2022 |
| LMW Spraying&Driving Ltd | Construction | 2025 |
| LN Homes Limited | Real estate | 2018 |
| Lnhr Consult Ltd | Professional & scientific | 2025 |
| LNKDISTRIBUTION7 Ltd | Wholesale & retail | 2025 |
| LNV Environmental Services Ltd | Construction | 2025 |
| Load Logic Material Handling Ltd | Manufacturing | 2023 |
| Loaded Events Limited | Hospitality | 2016 |
| Lobster Lettings Franchise Limited | Extraterritorial | 2010 |
| Lobster Lettings Limited | Extraterritorial | 2012 |
| Lobster Property Group Limited | Professional & scientific | 2005 |
| Lobster Property Management Limited | Real estate | 2009 |
| Local Life 247 Limited | Information & communication | 2008 |
| Local Property Shop Limited | Real estate | 2012 |
| Lochinver Projects Ltd | Hospitality | 2025 |
| Lock Fit North West Ltd | Other services | 2019 |
| Lock Stock Provisions Ltd | Wholesale & retail | 2021 |
| Locked OUT Auto Locksmith Northwest Ltd | Professional & scientific | 2023 |
| Lockfit Blackburn Chorley Preston Ltd | Administrative & support | 2025 |
| Lodges Northumberland Ltd | Hospitality | 2017 |
| Lofthouse Properties Ltd | Real estate | 2019 |
| LOGIC100 Limited | Other services | 2013 |
| Logistic Moves by Ollerton Ltd | Transport & logistics | 2018 |
| Logomda | Professional & scientific | 2023 |
| Logwood Convenience Store Limited | Wholesale & retail | 2023 |
| Lois Henri Hair and Beauty Ltd | Other services | 2010 |
| Lola Pops Handmade Ltd | Manufacturing | 2021 |
| Longbrook Design and Build Limited | Construction | 2000 |
| Longmead Industries Ltd | Financial services | 2024 |
| Longshaw Lettings Limited | Real estate | 2024 |
| Longton Ltd | Construction | 2023 |
| Longworth Interiors Ltd | Construction | 2014 |
| Longys Limited | Wholesale & retail | 2012 |
| Lookout Fire & Security Solutions Ltd | Construction | 2021 |
| Loops & Tings Electrical Ltd | Construction | 2025 |
| Loopverce Ltd | Information & communication | 2026 |
| Loose Button Upholstery & Design Ltd | Wholesale & retail | 2020 |
| Lordwell Limited | Real estate | 2026 |
| Lorivel Ltd | Professional & scientific | 2026 |
| Lorocat | Professional & scientific | 2026 |
| Lorovan Ltd | Professional & scientific | 2026 |
| Lorpax | Professional & scientific | 2026 |
| Lost Art Limited | Administrative & support | 1999 |
| Lost Woods Vape Ltd | Wholesale & retail | 2025 |
| Lotus Accounting Services Ltd | Professional & scientific | 2023 |
| Lotus Holdings NW Ltd | Real estate | 2026 |
| Lotus Rise With Lauren Limited | Education | 2026 |
| LOU Eyes Ltd | Health & social care | 2014 |
| Loudon Estates Limited | Real estate | 2022 |
| Louissalessolutions Ltd | Professional & scientific | 2024 |
| Love Bejewelled Ltd | Wholesale & retail | 2025 |
| Love Camping Ltd | Wholesale & retail | 2019 |
| Love IT Gallery Limited | Wholesale & retail | 2015 |
| LOW FAT Radio Limited | Arts & recreation | 2015 |
| Lowbank Service Station Limited | Wholesale & retail | 2013 |
| Lowe Electrical Design Limited | Professional & scientific | 2007 |
| Loweco (UK) Limited | Professional & scientific | 2005 |
| Lowes Media Ltd | Hospitality | 2019 |
| Lowry Recruitment Ltd | Administrative & support | 2016 |