| Luxe Hospitality Group (NW) Limited | Hospitality | 2023 |
| Luxe Lashes TM Ltd | Wholesale & retail | 2019 |
| Luxe Living Apartments Ltd | Real estate | 2024 |
| Luxe Living Realty Ltd | Real estate | 2021 |
| Luxe Moments Ltd | Information & communication | 2023 |
| Luxe Moroc Ltd | Real estate | 2025 |
| Luxe Overseas Ltd | Wholesale & retail | 2025 |
| Luxe Plasma Ltd | Wholesale & retail | 2024 |
| Luxe Wedding Services Ltd | Other services | 2016 |
| Luxe-Walk Ltd | Other services | 2025 |
| Luxechicks Ltd | Administrative & support | 2024 |
| Luxeeflick Ltd | Wholesale & retail | 2025 |
| Luxegeluk Ltd | Manufacturing | 2024 |
| Luxelens Portraits Limited | Professional & scientific | 2026 |
| Luxeliving Group Limited | Hospitality | 2025 |
| Luxembourg Estate Management Ltd. | Administrative & support | 2014 |
| Luxenight Beds Ltd | Manufacturing | 2026 |
| Luxently Ltd. | Wholesale & retail | 2025 |
| Luxerise Projects Ltd | Real estate | 2019 |
| Luxeviacart Ltd | Wholesale & retail | 2026 |
| Luxicart Ltd | Education | 2025 |
| Luxillia Limited | Wholesale & retail | 2022 |
| Luxing Health Products Ltd | Wholesale & retail | 2024 |
| LUXN1 Ltd | Other services | 2025 |
| Luxora Nexus Ltd | Other services | 2025 |
| Luxribs Ltd | Wholesale & retail | 2025 |
| Luxterior Ltd | Wholesale & retail | 2020 |
| Luxtex Ltd | Wholesale & retail | 2017 |
| Luxtrende Limited | Wholesale & retail | 2025 |
| Luxudore Interiors Ltd | Wholesale & retail | 2018 |
| Luxurious Renovations Limited | Construction | 2025 |
| Luxurious Security Limited | Construction | 2018 |
| Luxury Beauty by Andre Ltd | Other services | 2025 |
| Luxury by FJ Ltd | Wholesale & retail | 2025 |
| Luxury Compositions Ltd | Manufacturing | 2023 |
| Luxury Driveways & Patios Ltd | Construction | 2025 |
| Luxury Events Group Ltd | Other services | 2016 |
| Luxury for Living Ltd | Wholesale & retail | 2013 |
| Luxury Holidays and Honeymoons Ltd | Administrative & support | 2020 |
| Luxury Hours Limited | Administrative & support | 2019 |
| Luxury Lease Ltd | Administrative & support | 2019 |
| Luxury Lets Limited | Real estate | 2004 |
| Luxury Marketplace Ltd | Wholesale & retail | 2025 |
| Luxury Nails & Spa Cardiff Ltd | Other services | 2025 |
| Luxury Properties Rentals Ltd | Real estate | 2025 |
| Luxury Rhule's Ltd | Agriculture & fishing | 2017 |
| Luxury Rooms Ltd | Hospitality | 2019 |
| Luxury Special Ltd | Construction | 2018 |
| Luxury TV Lifestyles Limited | Professional & scientific | 2021 |
| Luxury Vehicle Lease Ltd | Administrative & support | 2019 |
| Luxury ZOO Limited | Wholesale & retail | 2020 |
| Luxurybnb Limited | Construction | 2020 |
| Luxus Renovations Ltd | Construction | 2020 |
| Luxymall Ltd | Wholesale & retail | 2025 |
| LV Drinks Ltd | Wholesale & retail | 2021 |
| LV Empire Holdings Ltd | Other services | 2025 |
| LVI Locums Ltd | Professional & scientific | 2007 |
| LVT Cardiff Ltd | Construction | 2024 |
| LVZ Consulting Limited | Administrative & support | 2010 |
| LW Golf Academy Ltd | Education | 2021 |
| LWB Removals and Waste Clearance Ltd | Transport & logistics | 2025 |
| Lwcus T CYF | Information & communication | 2018 |
| LWD Properties Limited | Real estate | 2020 |
| Lxeix Ltd | Wholesale & retail | 2025 |
| Lxiang Limited | Manufacturing | 2021 |
| LXN Partners Limited | Professional & scientific | 2018 |
| Lxnc Ltd | Wholesale & retail | 2025 |
| Lxora Life Sciences Limited | Manufacturing | 2023 |
| LXQ WHN Limited | Wholesale & retail | 2025 |
| Lxwcwhcl Limited | Information & communication | 2021 |
| Lxxxviii Ltd | Professional & scientific | 2025 |
| LY Domain Ltd | Information & communication | 2025 |
| LYA Exports UK Ltd | Wholesale & retail | 2020 |
| Lyamamatayn LLP | | 2025 |
| Lybl Limited | Households | 2023 |
| LYC (Cardiff) Ltd | Real estate | 2022 |
| Lyco Industrial Co., Limited | Administrative & support | 2014 |
| Lydair (Commissioning) Limited | Construction | 2011 |
| Lydiaco Ltd | Wholesale & retail | 2025 |
| Lydian Entrepreneurs Ltd | Wholesale & retail | 2025 |
| Lydmore Limited | Administrative & support | 2010 |
| Lydstep Caravan & Lodge Hire Ltd | Hospitality | 2013 |
| LYJ NE Ltd | Hospitality | 2021 |
| Lykkesocks Ltd | Wholesale & retail | 2023 |
| Lyles Independent Financial Advice Ltd | Financial services | 2016 |
| Lyll POT Ltd | Wholesale & retail | 2025 |
| Lynda Cafes Ltd | Hospitality | 2022 |
| Lynfield Software Ltd | Information & communication | 2025 |
| Lynk Hydraulics Limited | Wholesale & retail | 2010 |
| Lynlen Ltd | Wholesale & retail | 2022 |
| Lynn Global Limited | Professional & scientific | 2022 |
| Lynn Group Limited | Professional & scientific | 2019 |
| Lynnwood FOX Limited | Professional & scientific | 2018 |
| Lynor Limited | Wholesale & retail | 2025 |
| Lynotics Ltd | Information & communication | 2021 |
| Lynton Labs Limited | Information & communication | 2018 |
| Lynvrix Solutions Ltd | Transport & logistics | 2025 |
| Lynwood Court (Radyr) Limited | Households | 1963 |
| Lynx Lodges Ltd | Other services | 2017 |
| Lyon London Limited | Wholesale & retail | 2018 |