| Loyal Crust Ltd | Wholesale & retail | 2025 |
| Loyal Protection Services Ltd | Administrative & support | 2023 |
| Loyal Vodka Ltd | Wholesale & retail | 2023 |
| Loyalhomes Ltd | Information & communication | 2020 |
| Loyalleads Ltd | Wholesale & retail | 2019 |
| Loyalty Health Ltd | Health & social care | 2022 |
| Loyalty Holdings Ltd | Financial services | 2026 |
| Loyalty Property Group Ltd | Real estate | 2024 |
| Lozelles Gardens Freeholders Ltd | Households | 2026 |
| Lozelles Property Management Company Limited | Households | 2019 |
| Lozmat Recruits Ltd | Administrative & support | 2021 |
| LP & Ace Ltd | Households | 2023 |
| LP Developments (North East) Limited | Construction | 2017 |
| LP Electrician Ltd | Construction | 2019 |
| LP Heating Plumbing & Electrical Ltd | Construction | 2021 |
| LP IT Services Ltd | Information & communication | 2026 |
| LP SD One Hundred Twenty SIX Limited | Wholesale & retail | 2023 |
| LP Wealth Management Limited | Administrative & support | 2021 |
| LP017881 LP | | 2017 |
| LP018289 LP | | 2017 |
| LP018488 LP | | 2017 |
| LP018489 LP | | 2017 |
| LP018733 LP | | 2017 |
| LP018734 LP | | 2017 |
| LP018765 LP | | 2017 |
| LP018766 LP | | 2017 |
| LP018775 LP | | 2017 |
| LP018779 LP | | 2017 |
| LP018810 LP | | 2017 |
| LP018811 LP | | 2017 |
| LP018813 LP | | 2017 |
| LP018858 LP | | 2017 |
| LP018889 LP | | 2017 |
| LP018890 LP | | 2017 |
| LP018969 LP | | 2017 |
| LP018988 LP | | 2017 |
| LP019008 LP | | 2017 |
| LP019029 LP | | 2017 |
| LP019036 LP | | 2017 |
| LP019044 LP | | 2018 |
| LP019075 LP | | 2018 |
| LP019076 LP | | 2018 |
| LP019089 LP | | 2018 |
| LP019090 LP | | 2018 |
| LP019133 LP | | 2018 |
| LP019180 PC | | 2018 |
| LP019188 LP | | 2018 |
| LP019189 LP | | 2018 |
| LP019221 LP | | 2018 |
| LP019265 LP | | 2018 |
| LP019301 LP | | 2018 |
| LP019356 LP | | 2018 |
| LP019506 LP | | 2018 |
| LP18947 LP | | 2017 |
| LP2 Ltd | Real estate | 2023 |
| LPG Electronics Ltd | Wholesale & retail | 2019 |
| Lpg-Cars Ltd | Wholesale & retail | 2007 |
| LPS Business Supplies Limited | Wholesale & retail | 2018 |
| LPS Games Ltd | Wholesale & retail | 2010 |
| Lptap Ltd | Information & communication | 2020 |
| LPZ Construction Ltd | Construction | 2019 |
| LR HOZ SP Ltd | Information & communication | 2025 |
| LR Panels Limited | Manufacturing | 2017 |
| LR Plant Limited | Other services | 2020 |
| LR Research Limited | Professional & scientific | 2016 |
| LR8 Comms. Ltd | Administrative & support | 2016 |
| LRB Management Limited | Real estate | 2018 |
| Lrch Hotel 1 Limited | Hospitality | 2019 |
| LRE Consultants Limited | Professional & scientific | 2021 |
| LRF Ltd | Hospitality | 2021 |
| LRF Retail Limited | Wholesale & retail | 2017 |
| LRH Construction Ltd | Construction | 2025 |
| LRL Property Limited | Real estate | 2017 |
| LRM Planning Limited | Professional & scientific | 2013 |
| LRT Plastering and Tiling Ltd | Construction | 2023 |
| LRT Properties Cardiff Ltd | Real estate | 2024 |
| LRV Limited | Hospitality | 2000 |
| LRW & MJM Limited | Health & social care | 2019 |
| LRW Services Ltd | Construction | 2022 |
| LS & Co ( UK) Ltd | Professional & scientific | 2019 |
| LS GAS Cardiff Ltd | Construction | 2020 |
| LS Scott Ltd | Transport & logistics | 2025 |
| LS Wholesale Ltd | Wholesale & retail | 2017 |
| LS32 Ltd | Wholesale & retail | 2020 |
| LSA Projects London Ltd | Administrative & support | 2024 |
| Lsbb Ltd | Hospitality | 2026 |
| LSH Direct Ltd | Wholesale & retail | 2019 |
| LSK Holdco 2 Limited | Financial services | 2018 |
| LSK Opco Limited | Hospitality | 2015 |
| Lskp Developments Limited | Construction | 2015 |
| Lsma Limited | Real estate | 2024 |
| Lsmw Limited | Financial services | 2023 |
| LSP Calon Limited | Professional & scientific | 2025 |
| Lsre Limited | Professional & scientific | 2018 |
| LSS International Label Limited | Professional & scientific | 2017 |
| LST Inc Ltd | Professional & scientific | 2026 |
| LSZ Commerce Ltd | Wholesale & retail | 2023 |
| LSZ Enterprise Ltd | Wholesale & retail | 2018 |
| LT Chemists Holdings Ltd | Wholesale & retail | 2018 |
| LT Chemists Limited | Wholesale & retail | 2001 |