| Luna Legal Consultancy Ltd | Professional & scientific | 2023 |
| Luna Metal Recycling Ltd | Wholesale & retail | 2024 |
| Luna TAT Limited | Other services | 2024 |
| Luna Trucking UK Ltd | Transport & logistics | 2026 |
| Lunahomecare Ltd | Health & social care | 2024 |
| Lunaire Labs Limited | Information & communication | 2026 |
| Lunamar (Group) Limited | Financial services | 2013 |
| Lunamar Holdings Limited | Financial services | 2017 |
| Lunamar Limited | Information & communication | 2014 |
| Lunanet Limited | Financial services | 2013 |
| Lunar Cycles Cycle Club CIC | Arts & recreation | 2025 |
| Lunar International Limited | Administrative & support | 2003 |
| Lunar Optical Bristol Limited | Wholesale & retail | 2017 |
| Lunar Peak Ltd | Wholesale & retail | 2026 |
| Lunar Sea Creative Limited | Arts & recreation | 2022 |
| Lunar Services Ltd | Hospitality | 2026 |
| Lunar Web Development Ltd | Information & communication | 2018 |
| Lunarview Limited | Arts & recreation | 2005 |
| Lunchboxt Ltd | Hospitality | 2025 |
| Lundin Holdings Limited | Financial services | 2021 |
| Lundin Property Holdings Ltd | Real estate | 2021 |
| Lunea Ltd | Real estate | 2025 |
| Lungo Social Bristol Ltd | Hospitality | 2025 |
| Lungo Social Limited | Hospitality | 2024 |
| Lunita Pasteleria Ltd | Hospitality | 2023 |
| Lunox Haus Ltd | Wholesale & retail | 2025 |
| Lupin Engineering Ltd | Professional & scientific | 2023 |
| Lupintailor Property Management Limited | Households | 2001 |
| Luppiter Electrical Ltd | Construction | 2020 |
| Lupu Legacy Properties Ltd | Real estate | 2025 |
| Luria Editing Limited | Information & communication | 2014 |
| Lurid Editions Limited | Information & communication | 2022 |
| Lurker Audio Ltd | Manufacturing | 2024 |
| Lursight Ltd | Information & communication | 2022 |
| Lusaworks Limited | Health & social care | 2021 |
| Lush Greens Bristol Community Interest Company | Agriculture & fishing | 2024 |
| Lush Longboards Limited | Manufacturing | 2002 |
| Lush Properties South West Limited | Real estate | 2016 |
| Lush Smiles & Esthetics Ltd | Administrative & support | 2024 |
| Lush Stays UK Ltd | Real estate | 2025 |
| Lushtra Ltd | Administrative & support | 2026 |
| Lusion Ltd | Administrative & support | 2015 |
| Lusithow Limited | Health & social care | 2022 |
| Lussio Ltd | Wholesale & retail | 2024 |
| Lusso Interiors Limited | Construction | 2002 |
| Lusso Management Holdings Limited | Financial services | 2019 |
| Lutalica Ltd | Professional & scientific | 2017 |
| Lutheruk Ltd | Arts & recreation | 2022 |
| Luton Bennett Limited | Administrative & support | 2009 |
| Luton Contracting Ltd | Construction | 2015 |
| Lutons DRY Lining Limited | Construction | 2007 |
| Lutra Carpentry Limited | Manufacturing | 2012 |
| Lutra Marketing Consulting Ltd | Professional & scientific | 2026 |
| Lutsconsult Limited | Health & social care | 2011 |
| Lutz Kano Ltd | Hospitality | 2016 |
| Lutz Limited | Hospitality | 2019 |
| LUV Creative Limited | Hospitality | 2017 |
| LUV Infinity Solutions Limited | Wholesale & retail | 2007 |
| LUV Tech Solutions Limited | Professional & scientific | 2026 |
| LUV2MEETU Community Interest Company | Health & social care | 2010 |
| Luvanth Ltd | Extraterritorial | 2025 |
| LUX Aeterna Ltd | Information & communication | 1995 |
| LUX Aeterna VFX Ltd. | Information & communication | 2006 |
| LUX Bristol Limited | Transport & logistics | 2023 |
| LUX Cleans Ltd | Administrative & support | 2025 |
| LUX Design & Branding Limited | Information & communication | 2024 |
| LUX Nails Bristol Limited | Other services | 2026 |
| Luxe Amor Events Ltd | Administrative & support | 2025 |
| Luxe Amore Studio Limited | Health & social care | 2023 |
| Luxe Beauty by Jade Ltd | Health & social care | 2023 |
| Luxe Clean Professionals Ltd | Administrative & support | 2025 |
| Luxe Fashion House Ltd | Wholesale & retail | 2026 |
| Luxe Fitness SW Ltd | Arts & recreation | 2017 |
| Luxe Limousines Ltd | Transport & logistics | 2019 |
| Luxe N Cosy Ltd | Real estate | 2023 |
| Luxeco Ltd | Professional & scientific | 2014 |
| Luxedrive Ltd | Transport & logistics | 2022 |
| Luxegem Ltd | Wholesale & retail | 2025 |
| Luxeline Chauffeurs Services Ltd | Transport & logistics | 2026 |
| Luxeloomthread Ltd | Manufacturing | 2025 |
| Luxerosa Limited | Wholesale & retail | 2019 |
| Luxo Network Ltd | Wholesale & retail | 2024 |
| Luxton Services Limited | Wholesale & retail | 2013 |
| Luxury Aesthetic Beauty Lounge Ltd | Professional & scientific | 2026 |
| Luxury Detective Ltd | Extraterritorial | 2015 |
| Luxury Dream Holidays Limited | Administrative & support | 2018 |
| Luxury Home Share Ltd | Real estate | 2024 |
| Luxury Kitchen and Bath Ltd | Manufacturing | 2018 |
| Luxury Landscaping Ltd | Manufacturing | 2025 |
| Luxvent Limited | Construction | 2022 |
| LUZ Rivera Ltd | Health & social care | 2024 |
| LV Vending Ltd | Wholesale & retail | 2025 |
| LVR Homes Group Ltd | Hospitality | 2025 |
| LVT Flooring Bristol Ltd | Construction | 2018 |
| Lvtg Holdings Limited | Professional & scientific | 2011 |
| Lvtg Limited | Professional & scientific | 2011 |
| LVZ Ltd | Construction | 2025 |
| LW Karate and Fitness Ltd | Education | 2022 |
| LWK Foods Limited | Wholesale & retail | 2026 |
| LWR Ashley Properties Limited | Real estate | 2025 |