| Loopco Ltd | Wholesale & retail | 2026 |
| Lopag Ltd | Transport & logistics | 2015 |
| Loram UK Ltd | Manufacturing | 2006 |
| Lorcav Ltd | Wholesale & retail | 2025 |
| Lord Marriott Fades Ltd | Other services | 2019 |
| Lorente's Tapas Limited | Hospitality | 2013 |
| Lorentes Fire Station Ltd | Hospitality | 2024 |
| Lorentes Properties Ltd | Households | 2024 |
| Loretta's Tasty Treats Catering Ltd | Hospitality | 2015 |
| Lorianta Limited | Real estate | 2019 |
| Lorien Windows Limited | Construction | 2019 |
| Lorys RLS Cleaning Limited | Administrative & support | 2019 |
| Losantt Care Ltd | Health & social care | 2022 |
| Loscoe Road 1959 Limited | Hospitality | 2015 |
| Loss & Found Ltd | Education | 2025 |
| Lost Chances Ltd | Professional & scientific | 2024 |
| Lost Paws Dog Rescue & Rehoming CIC | Agriculture & fishing | 2021 |
| Lostboys Productions Limited | Arts & recreation | 2011 |
| Lotf Ltd | Hospitality | 2024 |
| Lothlorien Consulting Limited | Information & communication | 2001 |
| Lots for Tots Childcare Ltd | Health & social care | 2024 |
| Lots for Tots Limited | Professional & scientific | 2012 |
| Lots for Tots Magazine Ltd | Extraterritorial | 2023 |
| Lotus Management Services Limited | Real estate | 2017 |
| Lotus Therapeutics Ltd | Health & social care | 2012 |
| Louise Robinson Interiors Limited | Professional & scientific | 2018 |
| Louise’S Cakes Limited | Manufacturing | 2025 |
| Lount Enterprises Limited | Agriculture & fishing | 2002 |
| LOV Academy Limited | Professional & scientific | 2025 |
| Lova Central Ltd | Other services | 2025 |
| Lovage Homes Ltd | Hospitality | 2008 |
| Lovatt Accountancy Limited | Professional & scientific | 2014 |
| Love Curry Chellaston Limited | Hospitality | 2022 |
| Love Curry Love Food Limited | Hospitality | 2025 |
| Love Harts Limited | Financial services | 2010 |
| Love My Properties Limited | Real estate | 2025 |
| Love Sadler Gate CIC | Administrative & support | 2024 |
| Love Tiles 4U Ltd | Wholesale & retail | 2023 |
| Love Vend Limited | Wholesale & retail | 2023 |
| Love Your Screens Limited | Wholesale & retail | 2022 |
| Love Yourself Aesthetics Ltd | Other services | 2025 |
| Loveboat Limited | Information & communication | 2016 |
| Lovehands Care Services Ltd | Administrative & support | 2014 |
| LOW Carbon Building Products Ltd | Construction | 2020 |
| LOW Climate Control Ltd | Construction | 2020 |
| Lowe Financial Limited | Financial services | 2015 |
| Lowegreen Housing Limited | Real estate | 2025 |
| Lowell Parker Ltd | Administrative & support | 2017 |
| Lower Dale Derby Ltd | Wholesale & retail | 2023 |
| Lower Dale Market Limited | Wholesale & retail | 2018 |
| Lowes Property Ltd | Real estate | 2022 |
| Lowesby 2016 (Land) Ltd | Real estate | 2021 |
| Lowesby Corporate Sponsor Limited | Financial services | 2024 |
| Lowesby Dunelm Partnership Limited | Real estate | 2015 |
| Lowesby Melton Ltd | Construction | 2018 |
| Lowesby Protector Ltd | Extraterritorial | 2021 |
| Lowesby Trustee Company One Ltd | Extraterritorial | 2021 |
| Lowesby Trustee Company Three Ltd | Extraterritorial | 2021 |
| Lowesby Trustee Company Two Ltd | Extraterritorial | 2021 |
| Lowkey Derby Properties Ltd | Real estate | 2025 |
| Lowlands Farm Limited | Professional & scientific | 1973 |
| LP Compliance Ltd | Public administration | 2019 |
| LP SD One Hundred Eleven Limited | Wholesale & retail | 2023 |
| LP SD One Hundred Twenty One Limited | Wholesale & retail | 2023 |
| LPB Holdings (Midlands) Limited | Financial services | 2022 |
| Lpcl Services Ltd | Health & social care | 2013 |
| LPH Door Systems Ltd | Professional & scientific | 2025 |
| LPP Improvement and Change Limited | Professional & scientific | 2025 |
| LPR Lettings Ltd | Real estate | 2026 |
| LR Finance Limited | Real estate | 2021 |
| LRC Systems Ltd | Manufacturing | 2022 |
| LRE Property Limited | Real estate | 2026 |
| Lrjc Ltd | Real estate | 2025 |
| LRK Investments Limited | Real estate | 2025 |
| LRL Brickwork Limited | Construction | 2015 |
| LRL Rentals Limited | Real estate | 2022 |
| LRN Educational Services Ltd | Education | 2014 |
| LRS Solutions Limited | Transport & logistics | 2021 |
| LRW 2 Ltd | Wholesale & retail | 2023 |
| LS Finance Services Ltd | Professional & scientific | 2023 |
| LS Padda Limited | Transport & logistics | 2021 |
| LS2 Commerce Ltd | Wholesale & retail | 2024 |
| LS30 Ltd | Administrative & support | 2014 |
| LS88 Ltd | Real estate | 2023 |
| LSA Homes Ltd | Real estate | 2021 |
| Lsae Ltd | Wholesale & retail | 2023 |
| Lsgondo Ltd | Health & social care | 2020 |
| LSH LLP | | 2020 |
| LSJ Creatives Limited | Other services | 2015 |
| LSK Realty Ltd | Real estate | 2024 |
| Lsth IFB Limited | Construction | 2023 |
| Lsth Trustee Limited | Other services | 2021 |
| LSW Mechanical Services Limited | Construction | 2016 |
| LSW Property Solutions Limited | Administrative & support | 2015 |
| LSY888 Ltd | Real estate | 2026 |
| LT Manacs Services Limited | Health & social care | 2022 |
| LTB Engineering Limited | Manufacturing | 2019 |
| LTC Pipeworks Limited | Construction | 2010 |
| LTG Hideout Enterprises Limited | Hospitality | 2025 |
| LTU Handyman Ltd | Manufacturing | 2024 |