| Lemon Sunflower Limited | Real estate | 2022 |
| Lemon Thyme Investments Limited | Real estate | 2022 |
| Lemon Trading Associates Limited | Administrative & support | 2002 |
| Lemonaid Research Ltd | Professional & scientific | 2011 |
| Lemonset Limited | Real estate | 1981 |
| Lemoorey Locations Ltd | Information & communication | 2022 |
| LEN Cleaning Services Ltd | Administrative & support | 2024 |
| Lenak Ltd | Transport & logistics | 2018 |
| Lenawood Limited | Hospitality | 2001 |
| Lenex-Bris Limited | Construction | 2017 |
| Leney Property Ltd | Real estate | 2024 |
| Lenfestey Estates (Holdings) Limited | Real estate | 1996 |
| Leni's Holiday Lets Ltd | Hospitality | 2024 |
| Lenihan Limited | Wholesale & retail | 2005 |
| Lenner Security Ltd | Administrative & support | 2024 |
| Lennon Studios Student Accommodation, L.P. | | 2006 |
| Lenpat Care Ltd | Health & social care | 2026 |
| Lenpat Properties Ltd | Real estate | 2025 |
| Lens Sense Ltd | Wholesale & retail | 2022 |
| Leny Limited | Real estate | 2004 |
| LEO Dearden Enterprises Ltd | Manufacturing | 2010 |
| LEO Lets Limited | Households | 2024 |
| LEO Rising Consulting Ltd | Professional & scientific | 2023 |
| Leo's Trans Ltd | Transport & logistics | 2021 |
| LEO1B Energy Park Limited | Energy | 2023 |
| Leofric Ltd | Wholesale & retail | 2025 |
| Leokk Ltd | Health & social care | 2019 |
| Leomax Management Solutions Ltd. | Construction | 2019 |
| Leon Realty Limited | Construction | 2019 |
| Leonard Brothers Veterinary Centre Limited | Extraterritorial | 2007 |
| Leonard Prestige Developments Ltd | Construction | 2008 |
| Leonard Sheldon Property Holdings Limited | Real estate | 2025 |
| Leonard Smith Group Ltd | Health & social care | 2026 |
| Leonard Transport Ltd | Transport & logistics | 2019 |
| Leoncat Company Limited | Professional & scientific | 2012 |
| Leoncat Overseas Ltd | Other services | 2018 |
| Leoncat Worldwide Ltd. | Other services | 2024 |
| Leoni Trans Ltd | Transport & logistics | 2020 |
| Leonlogistics Ltd | Transport & logistics | 2019 |
| Leonroan Limited | Information & communication | 2014 |
| Leonte Transport Ltd | Transport & logistics | 2022 |
| Leopard Electrical Ltd | Construction | 2026 |
| Leopold & SON Limited | Real estate | 1941 |
| Leotie Beauty Ltd | Other services | 2020 |
| Lerna Bess Limited | Energy | 2022 |
| Lernus LP | | 2014 |
| LES Chiffres Limited | Professional & scientific | 2020 |
| LES Cousins Ltd | Hospitality | 2021 |
| LES Palennes Ltd | Real estate | 2013 |
| LES3CHALETS Limited | Hospitality | 2012 |
| Lesath Solar Limited | Energy | 2023 |
| Leser UK Limited | Wholesale & retail | 1975 |
| Less Mess Cleaning Boutique Limited | Administrative & support | 2022 |
| Lester (Fallen Stock) Limited | Agriculture & fishing | 2004 |
| Lester Media Limited | Information & communication | 2013 |
| Lester Property Holdings Ltd | Real estate | 2024 |
| LET IT Glow Limited | Other services | 2017 |
| LET LET Homes Ltd | Real estate | 2026 |
| LET This Group Ltd | Wholesale & retail | 2025 |
| LET US LET Online Limited | Real estate | 2018 |
| LET US Spray Limited | Construction | 2011 |
| LET Women Speak Limited | Wholesale & retail | 2023 |
| Let's Construction Limited | Construction | 2017 |
| Let's Feast Ltd | Hospitality | 2025 |
| Let's Go Electrical Contractors Limited | Construction | 2023 |
| Let's Go LET and Sales Ltd | Real estate | 2019 |
| Let's Go Sales Ltd | Real estate | 2025 |
| Let's Par-Tea! Ltd | Hospitality | 2025 |
| Let's Play (Bristol) Ltd | Education | 2017 |
| Let's Talk, Let's DO C.I.C. | Health & social care | 2026 |
| Let's Walk Bristol C.I.C. | Arts & recreation | 2019 |
| Letang Auto Electrical Ltd. | Wholesale & retail | 2015 |
| Letchworth Veterinary Centre Limited | Extraterritorial | 2003 |
| Leteau Ltd | Other services | 2025 |
| Lethbridge Building Ltd | Extraterritorial | 2023 |
| Lethbridge Painting Limited | Extraterritorial | 2014 |
| Lets Direct Staple Hill Ltd | Real estate | 2008 |
| Lets Estate Ltd | Real estate | 2024 |
| Lets Go Wild Ltd | Extraterritorial | 2010 |
| Lets Love Films Limited | Information & communication | 2024 |
| Lets Make Things Better Ltd | Information & communication | 2025 |
| Lets Manage South Limited | Agriculture & fishing | 2020 |
| Lets Property and Construction Limited | Real estate | 2023 |
| Lets Rent Bristol Ltd | Real estate | 2009 |
| Lets Save Limited | Wholesale & retail | 2024 |
| Lets Unlock Limited | Administrative & support | 2024 |
| Letsort Limited | Professional & scientific | 2015 |
| Letsvip Ltd | Transport & logistics | 2022 |
| Letted Ltd | Information & communication | 2025 |
| Letteramber Limited | Manufacturing | 1998 |
| Letterarea Limited | Manufacturing | 1998 |
| Letterassist Limited | Information & communication | 2023 |
| Letterbox Parties Limited | Wholesale & retail | 2021 |
| Lettings (Bristol) Ltd | Real estate | 2022 |
| Lettings South West Limited | Real estate | 2023 |
| Letts & Reynolds Civils Ltd | Construction | 2023 |
| Letts & Weeks Plant Ltd | Administrative & support | 2026 |
| Letts Commercial Property Limited | Construction | 2026 |
| Letts Farming Limited | Agriculture & fishing | 2026 |
| Letts Holdings Limited | Financial services | 2026 |