| Lettus Grow Ltd | Manufacturing | 2015 |
| Letuwe Ltd | Real estate | 2019 |
| Let’S Dream Limitlessly CIC | Other services | 2019 |
| Leung & Co Law Limited | Professional & scientific | 2019 |
| Level Bristol Ltd | Other services | 2019 |
| Level Films LLP | | 2011 |
| Level Studio Limited | Information & communication | 2012 |
| Level Technologies (Holdings) Limited | Financial services | 2025 |
| Level Technologies Limited | Financial services | 2023 |
| Level UP Let's Ltd | Real estate | 2018 |
| Levelformat Limited | Administrative & support | 1998 |
| Levels Coaching Ltd | Health & social care | 2025 |
| Lever DU Soleil Ltd | Health & social care | 2021 |
| Leverett Developments Limited | Construction | 2015 |
| Leverton Events and Communications Ltd | Other services | 2010 |
| Levitt UK Real Estate Limited | Construction | 2010 |
| Levl Telematics Limited | Information & communication | 2016 |
| Levo Property Limited | Real estate | 2025 |
| Levon Aviation Power Ltd | Manufacturing | 2022 |
| Levonoh Ltd | Real estate | 2024 |
| Lew&Leepubs Ltd | Hospitality | 2026 |
| Lewi's Hair and Beauty Ltd | Other services | 2025 |
| Lewin QS Limited | Professional & scientific | 2014 |
| Lewins House Ltd | Real estate | 2011 |
| Lewins Residential Ltd | Real estate | 2018 |
| Lewis & Co Advisory Limited | Financial services | 2026 |
| Lewis & Sons Ltd | Extraterritorial | 2017 |
| Lewis Commercial Body Repairs Ltd | Wholesale & retail | 2020 |
| Lewis Foster Lewis Design Ltd | Professional & scientific | 2020 |
| Lewis Holdings (SW) Ltd | Real estate | 2024 |
| Lewis Property Limited | Real estate | 2000 |
| Lewis Site Engineering Limited | Construction | 2018 |
| Lewis Tomlinson Associates Ltd | Professional & scientific | 2021 |
| Lewis Utilities Ltd | Construction | 2022 |
| Lewis-Cadman Holdings Ltd | Real estate | 2021 |
| Lewisham Moving Image Ltd | Information & communication | 2023 |
| Lewpin Ltd | Hospitality | 2007 |
| Lewton M & E Services Limited | Construction | 2023 |
| Lewtress Natural Health Limited | Manufacturing | 2004 |
| Lexamar Limited | Professional & scientific | 2020 |
| Lexatech Limited | Information & communication | 2018 |
| Lexcan Services Limited | Households | 2021 |
| Lexia Analytics Limited | Information & communication | 2018 |
| Lexia Education Services Ltd | Education | 2020 |
| Lexington Avenue Management Company Limited | Households | 2009 |
| Lexington Place (Freehold) Ltd | Extraterritorial | 2026 |
| Lexis Legal and Immigration Services Limited | Professional & scientific | 2025 |
| Lexite Developments Ltd | Administrative & support | 2007 |
| Lexite Group Limited | Financial services | 2024 |
| Lexite Properties Ltd | Real estate | 2024 |
| Lexora Legal Ltd | Professional & scientific | 2025 |
| Lexus Europe Limited | Administrative & support | 2002 |
| Leybeam Limited | Administrative & support | 1996 |
| Leyna Properties Ltd | Real estate | 2020 |
| Lezano LP | | 2012 |
| LF Brickwork Ltd | Construction | 2025 |
| LF Brothers Properties Limited | Real estate | 2020 |
| LF Collective Bristol Ltd | Hospitality | 2026 |
| LF Marketing Limited | Wholesale & retail | 2007 |
| LF Medical Ltd | Health & social care | 2019 |
| LF Projects Limited | Real estate | 2018 |
| LFJ Computer Solutions Limited | Information & communication | 1996 |
| LFL Limited | Real estate | 2019 |
| LFP Cleaning Services Ltd | Administrative & support | 2026 |
| LFP Mobile Caravans Ltd | Manufacturing | 2021 |
| Lftd Training Club Limited | Arts & recreation | 2013 |
| LFW Properties Ltd | Real estate | 2024 |
| LG & TG Limited | Financial services | 2010 |
| LG Barbers Limited | Other services | 2024 |
| LG Cardiac Diagnostics Limited | Health & social care | 2026 |
| LG Damp Proofing & Plastering Ltd | Construction | 2023 |
| LG Dog Grooming Ltd | Other services | 2024 |
| LG Driver Solutions Limited | Wholesale & retail | 2024 |
| LG Property and Investments Limited | Construction | 2014 |
| LG Renovations Limited | Construction | 2026 |
| LGC Global Ltd | Information & communication | 2021 |
| LGL Holdings Limited | Financial services | 2024 |
| Lgla Projects Ltd | Professional & scientific | 2022 |
| LGN Solutions Ltd | Construction | 2025 |
| Lgnd Campaigns Ltd | Other services | 2023 |
| LGP Assets Ltd | Real estate | 2017 |
| LGP Group Ltd | Financial services | 2019 |
| LGP Management Ltd | Real estate | 2015 |
| Lgrc Associates Ltd | Professional & scientific | 2014 |
| Lgriffin Interiors Ltd | Construction | 2026 |
| LGV Training Bristol Limited | Education | 2019 |
| LGW Group Limited | Manufacturing | 2014 |
| LH Bristol Limited | Hospitality | 2023 |
| LH Building Services (Bristol) Ltd | Construction | 2014 |
| LH Construction (Bristol) Ltd | Construction | 2013 |
| LH DNO Grid Services Limited | Energy | 2023 |
| LH Healthcare Services Ltd | Administrative & support | 2026 |
| LH Management Services Limited | Financial services | 2015 |
| LH Trading (SW) Limited | Construction | 2019 |
| Lhdg Group Limited | Professional & scientific | 2018 |
| Lheam Ltd | Arts & recreation | 2024 |
| LHF Legacy Limited | Financial services | 2025 |
| LHR (South West) Developments Limited | Construction | 2026 |
| LI Woody Limited | Real estate | 2021 |
| Liac Consulting Limited | Professional & scientific | 2016 |