| Lewsey's Peri Peri Ltd | Hospitality | 2019 |
| Lexa Connect Ltd | Administrative & support | 2025 |
| Lexcroft Solutions Limited | Information & communication | 2010 |
| Lexdec Ltd | Construction | 2018 |
| Lexfin Academy Ltd | Education | 2025 |
| Lexmm Solicitors Ltd | Professional & scientific | 2022 |
| Lexoscale Ltd | Professional & scientific | 2026 |
| Lexpites Limited | Information & communication | 2017 |
| Lexxie's Developments Limited | Administrative & support | 2017 |
| Leysa Properties Limited | Real estate | 2026 |
| Leza Construction Ltd | Construction | 2021 |
| LF Global Limited | Professional & scientific | 2025 |
| LF Roosters Ltd | Hospitality | 2025 |
| LG Plastering Ltd | Construction | 2022 |
| LG Smart Solutions Ltd | Administrative & support | 2018 |
| LGA Building Construction Ltd | Professional & scientific | 2023 |
| LGI Housing Ltd | Real estate | 2016 |
| Lgoddard Services Ltd | Information & communication | 2009 |
| LGS69 Ltd | Transport & logistics | 2025 |
| Lgstar Properties Ltd | Real estate | 2018 |
| LH Nicholls Ltd | Real estate | 2021 |
| LHC Property Group Ltd | Professional & scientific | 2026 |
| LHM Logistics Ltd | Transport & logistics | 2024 |
| LHR Autos Ltd | Other services | 2022 |
| LHS Taprack Limited | Wholesale & retail | 2017 |
| Liaa Ltd | Construction | 2025 |
| Liam George Physiotherapy Limited | Health & social care | 2013 |
| Liam Hegarty Carpentry Limited | Construction | 2024 |
| Liam Travers Limited | Construction | 2016 |
| Liaqat & Sons Limited | Real estate | 2015 |
| Liaqat and Sons (Property Investment) Limited | Real estate | 2022 |
| Liberty Bridge Partners Limited | Professional & scientific | 2024 |
| Liberty House Northwood Limited | Construction | 2022 |
| Liberty Law Solicitors Ltd | Professional & scientific | 2016 |
| Libra Beauty Limited | Other services | 2010 |
| Lict Ltd | Construction | 2010 |
| Lidia Jung Design Ltd | Professional & scientific | 2018 |
| Lido Motors Ltd | Wholesale & retail | 2021 |
| Lifasadaa Limited | Health & social care | 2020 |
| Life & Standards Global Ltd | Other services | 2014 |
| Life Bridge Support Ltd | Administrative & support | 2025 |
| Lifespace Technologies Ltd | Information & communication | 2021 |
| Lifetime Financial Consulting Ltd | Financial services | 2004 |
| Lifetime Roofing & Home Improvements Ltd | Construction | 2024 |
| Lift Specialists Group Limited | Financial services | 2026 |
| Lifting Spiritz Ltd | Professional & scientific | 2020 |
| Lifting the LID OFF the Dutch POT CIC | Health & social care | 2025 |
| Liftrite Server Handling Limited | Wholesale & retail | 2021 |
| Light Upon Light Trading Ltd | Hospitality | 2019 |
| Lighthouse Investment Group Limited | Financial services | 2022 |
| Lighthouse Motion Ltd | Information & communication | 2024 |
| Lightlink International Ltd | Professional & scientific | 2025 |
| Lights Camera Action Studios Ltd | Professional & scientific | 2022 |
| Lightshine Childminding Ltd | Health & social care | 2024 |
| Ligmaballs Ltd | Information & communication | 2019 |
| Lignum Build Ltd | Construction | 2017 |
| Lika Builders Ltd | Construction | 2021 |
| Liliana Ciobanu Limited | Health & social care | 2018 |
| Liliane Lansdell Properties Ltd | Real estate | 2020 |
| Liliane Properties Ltd | Real estate | 2023 |
| Lilies Land Limited | Professional & scientific | 2025 |
| Lilly Lotus Limited | Real estate | 2020 |
| Lily Accountants Ltd | Professional & scientific | 2013 |
| Lily Properties Ltd | Real estate | 2023 |
| Lilyroma Ltd | Other services | 2021 |
| Lilys Beauty Limited | Other services | 2018 |
| Limbiate Services Ltd | Transport & logistics | 2021 |
| Limbury Management Company Limited | Households | 1985 |
| Limbury Mead Limited | Wholesale & retail | 2019 |
| Limbury Motors Ltd | Wholesale & retail | 2023 |
| Limbury Newsagent Ltd | Wholesale & retail | 2019 |
| Limda UK Ltd | Construction | 2025 |
| Limebuild Properties Limited | Real estate | 2018 |
| Limitless Autocare Ltd | Wholesale & retail | 2025 |
| Limitless Care Services Limited | Administrative & support | 2019 |
| Limitless Enterprises Ltd | Wholesale & retail | 2024 |
| Limon Homes Limited | Construction | 2019 |
| Limon Sons Limited | Real estate | 2017 |
| Lina Aesthetics Ltd | Other services | 2024 |
| Linabell Nursery & Preschool Limited | Education | 2024 |
| Linat Ltd | Construction | 2024 |
| Linden Consulting and Recruitment Services Limited | Administrative & support | 2024 |
| Linden Curry House Limited | Hospitality | 2024 |
| Linden Pizzeria (GLO) Limited | Hospitality | 2026 |
| Linden Pizzeria Gloucester Ltd | Hospitality | 2024 |
| Lindeth Developments Limited | Real estate | 2021 |
| Lindex Cars Limited | Wholesale & retail | 2025 |
| Lindford Consulting Ltd | Professional & scientific | 1994 |
| Linee Ltd | Wholesale & retail | 2026 |
| Linen Wash Ltd | Administrative & support | 2023 |
| Linforth Master Carpentry Ltd. | Construction | 2013 |
| Lingeriebodyworks.Com Limited | Wholesale & retail | 2009 |
| Linguistbd Consultants Ltd | Other services | 2023 |
| Linivale Limited | Professional & scientific | 1989 |
| Link Community Centre CIC | Professional & scientific | 2017 |
| Link TAG Limited | Financial services | 2026 |
| Linkbridge Solutions Ltd | Professional & scientific | 2024 |
| Linkpoint Trading Limited | Manufacturing | 2020 |
| Linmore Developments Limited | Construction | 1986 |
| Linrose Care Ltd | Wholesale & retail | 2011 |