| Lfyshop Ltd | Administrative & support | 2019 |
| LG Commercial Sales Ltd | Wholesale & retail | 2019 |
| LG Communications Limited | Information & communication | 2019 |
| LG Digital Ltd | Information & communication | 2022 |
| LG Grabowski Ltd | Transport & logistics | 2017 |
| LG Inspection Services (UK) Limited | Professional & scientific | 2012 |
| LG Products Global Ltd | Information & communication | 2024 |
| LG Ventilation Ltd | Wholesale & retail | 2021 |
| LG29 Limited | Real estate | 2023 |
| Lgbt Excellence Centre (Wales) Limited | Administrative & support | 2007 |
| Lgcm Advisors Limited | Financial services | 1995 |
| Lgct Advisory Ltd | Professional & scientific | 2019 |
| LGD Stalls Ltd | Wholesale & retail | 2025 |
| LGD Twist Ltd | Other services | 2026 |
| Lgedpsych Ltd | Education | 2025 |
| Lgeena Ltd | Information & communication | 2026 |
| LGF Digital Consultants Ltd | Professional & scientific | 2020 |
| LGG Property Limited | Real estate | 2020 |
| LGM Recycle Ltd | Administrative & support | 2024 |
| LGM Sales Ltd | Wholesale & retail | 2022 |
| LGW Courier Services Limited | Transport & logistics | 2012 |
| Lgwp Limited | Professional & scientific | 2017 |
| LH IT Services Ltd | Information & communication | 2019 |
| LH Machining Ltd | Manufacturing | 2017 |
| LH Mortgages Limited | Financial services | 2022 |
| LH Property Management Limited | Real estate | 2017 |
| LHD Autos Ltd | Wholesale & retail | 2020 |
| Lhhc Ltd | Construction | 2017 |
| Lhotot Ltd | Other services | 2025 |
| LHR OIL and GAS Consulting Limited | Information & communication | 2017 |
| LI Lingqi Limited | Manufacturing | 2023 |
| LI Minghu Ltd | Wholesale & retail | 2021 |
| LI XIA Trading Co., Ltd | Wholesale & retail | 2024 |
| LI Xian Dong Ltd | Wholesale & retail | 2025 |
| LIA Biancheri D.C Ltd | Health & social care | 2026 |
| Lia's Kitchen CIC | Hospitality | 2019 |
| Liabou Ltd | Manufacturing | 2020 |
| Liam and SON Construction Ltd | Manufacturing | 2026 |
| Liam Milton Ltd | Construction | 2022 |
| Liam Pitcher Limited | Wholesale & retail | 2025 |
| Liamosei Ltd | Information & communication | 2017 |
| Liana Mini Market Ltd | Wholesale & retail | 2025 |
| Liangcai Limited | Wholesale & retail | 2025 |
| Liangcci Limited | Wholesale & retail | 2025 |
| Liangdai Cosmetic Ltd | Wholesale & retail | 2024 |
| Lianming Clothing Co., Ltd | Extraterritorial | 2021 |
| Lianne Toye Consulting Limited | Administrative & support | 2024 |
| Liawit Ltd | Education | 2025 |
| Libco Limited | Manufacturing | 2019 |
| Libera Living Limited | Real estate | 2025 |
| Liberty & Family Ltd | Wholesale & retail | 2011 |
| Liberty Agricultural Investment Ltd | Financial services | 2018 |
| Liberty Marketing Ltd | Professional & scientific | 2008 |
| Liberty Roofing Solutions Ltd | Construction | 2025 |
| Libertycorp Ltd | Professional & scientific | 2021 |
| Libri Nigri Limited | Professional & scientific | 2012 |
| Licd Holdings Ltd | Construction | 2022 |
| Licence Plus Ltd | Information & communication | 2017 |
| Licencekeep Ltd | Wholesale & retail | 2023 |
| License Scope Ltd | Wholesale & retail | 2021 |
| Licensesdirect Ltd | Wholesale & retail | 2019 |
| Lichfield Road Holdings Ltd | Professional & scientific | 2017 |
| Licorael Cosmetic Ltd | Wholesale & retail | 2024 |
| Licrown Ltd | Mining & quarrying | 2025 |
| Lidaisy Tradehub Limited | Wholesale & retail | 2025 |
| Lideflow Ltd | Information & communication | 2026 |
| Liden Developments Ltd | Construction | 2017 |
| Lienwar Limited | Wholesale & retail | 2021 |
| Lievels Ltd | Wholesale & retail | 2025 |
| LIF Cars Solution Ltd | Wholesale & retail | 2019 |
| Life and Enjoy Ltd | Wholesale & retail | 2025 |
| Life Care Support Ltd | Health & social care | 2025 |
| Life for African Mothers | Health & social care | 2010 |
| Life Giving Trust Ltd | Education | 2006 |
| Life Made Better Ltd | Wholesale & retail | 2025 |
| Life Sciences Hub Wales Limited | Administrative & support | 2013 |
| Life Style Express (Cardiff) Limited | Wholesale & retail | 2014 |
| Life Venture Solutions Ltd | Information & communication | 2013 |
| Life Whisperer Diagnostics Ltd | Professional & scientific | 2020 |
| Lifebarn Limited | | 1986 |
| Lifecycle Dynamics Limited | Information & communication | 2019 |
| Lifecycle Holdings Limited | Financial services | 2016 |
| Lifecycle Sourcing Limited | Professional & scientific | 2012 |
| Lifelabs Hospitals and Laboratories Group Ltd. | Professional & scientific | 2020 |
| LIFELINK2 Cancer Support CIC | Health & social care | 2026 |
| LIFELINK2 Healthcare Ltd | Health & social care | 2023 |
| Lifely Limited | Wholesale & retail | 2022 |
| Lifenest Ltd | Real estate | 2016 |
| Lifepen Limited | Hospitality | 2021 |
| Lifepix PTY Ltd | Wholesale & retail | 2026 |
| Lifeplan Academy Ltd | Financial services | 2020 |
| Lifesaversfirstaid.Co.Uk Ltd | Health & social care | 2011 |
| Lifeseeds Ltd | Real estate | 2018 |
| Lifestar Online Ltd | Health & social care | 2024 |
| Lifestyle D.Sign Ltd. | Manufacturing | 2011 |
| Lifestyle Dimensions Ltd | Real estate | 2018 |
| Lifestyle Housing Limited | Construction | 2004 |
| Lifestyle-X Ltd | Wholesale & retail | 2019 |
| Lifestylers Card Ltd | Other services | 2019 |
| Lifesuckswithout... Limited | Agriculture & fishing | 2021 |