| Lotty Sanna Limited | Administrative & support | 2014 |
| LOU & Rossi Limited | Hospitality | 2023 |
| LOU Haul Ltd | Transport & logistics | 2024 |
| Loughton Contract Surveying Limited | Construction | 2018 |
| Louies Pizza Ltd | Hospitality | 2020 |
| Louis Parker Interiors Limited | Wholesale & retail | 2021 |
| Lounge Warrington Ltd | Extraterritorial | 2018 |
| Love Brothers Limited | Agriculture & fishing | 1973 |
| Love Christmas Ltd | Wholesale & retail | 2016 |
| Love Evelyn Limited | Wholesale & retail | 2017 |
| Love India Limited | Hospitality | 2016 |
| Love Music Live Events Ltd | Arts & recreation | 2024 |
| Love Payroll Limited | Professional & scientific | 2025 |
| Love Sophia Jewels Ltd | Administrative & support | 2023 |
| Love Trading Group Limited | Wholesale & retail | 2016 |
| Loveday Growth Partners Ltd | Real estate | 2024 |
| LOVEGYROS2024 Ltd | Hospitality | 2025 |
| Lovelace Events Ltd | Administrative & support | 2015 |
| Lovelady Properties Limited | Real estate | 2024 |
| Lovell Alloy & Tyre Repairs Ltd | Manufacturing | 2025 |
| Lovely Minimart Ltd | Wholesale & retail | 2025 |
| Lovie Products Ltd | Wholesale & retail | 2020 |
| LOW Energy Supermarket Ltd | Wholesale & retail | 2011 |
| LOW Moss Farm Developments Limited | Construction | 2017 |
| LOW Wood Developments Limited | Construction | 2007 |
| Lowdown Ltd | Information & communication | 2018 |
| Lowe Building Services Ltd | Construction | 2015 |
| Lowe Group Holdings Limited | Financial services | 2018 |
| Lowe Investment Holdings Limited | Financial services | 2018 |
| Lowen House Limited | Wholesale & retail | 2026 |
| Lowenergie Limited | Wholesale & retail | 2014 |
| Lowern Ltd | Administrative & support | 2022 |
| Lowes Digital Marketing Ltd | Information & communication | 2024 |
| Lowfast Ltd | Administrative & support | 2025 |
| Lowfields Consulting Limited | Professional & scientific | 2024 |
| Lowry Estates Limited | Real estate | 2018 |
| Lowson Technology Ltd | Information & communication | 2019 |
| Lowton Barber Ltd | Other services | 2025 |
| Lowton Blinds Ltd | Wholesale & retail | 2020 |
| Lowton Community Hub Ltd | Administrative & support | 2020 |
| Lowton Developments Ltd | Construction | 2006 |
| Lowton DIY Centre Ltd | Wholesale & retail | 2020 |
| Lowton Infrastructure Group Limited | Financial services | 2020 |
| Lowton Plastering Services Limited | Construction | 2022 |
| Lowton Plastics Ltd | Manufacturing | 2000 |
| Lowton Restaurants Limited | Hospitality | 2024 |
| Lowton ST Mary's Community Hall Trust | Other services | 2013 |
| Lowton Tandoori Takeaway Limited | Hospitality | 2018 |
| Lowton Youth & Community Centre Limited | Education | 2007 |
| LOY International Ltd | Other services | 2017 |
| Loyal Training Services Limited | Administrative & support | 2012 |
| LP Brussels Limited | Professional & scientific | 2010 |
| LP Commercial Tech Ltd | Manufacturing | 2024 |
| LP Consulting Services Limited | Professional & scientific | 2026 |
| LP Documents Ltd | Administrative & support | 2018 |
| LP Interior Holding Ltd | Administrative & support | 2025 |
| LP SD Ninety Two Limited | Wholesale & retail | 2023 |
| LP Solutions Ltd | Construction | 2023 |
| LPA Systems Ltd | Administrative & support | 2026 |
| LPD Investments Limited | Real estate | 2024 |
| LPF Engineering Limited | Administrative & support | 2012 |
| LPJ Electrical Limited | Construction | 2018 |
| LPL Consulting Limited | Information & communication | 2016 |
| Lpmjv Limited | Real estate | 2024 |
| LPP Daresbury Holdings Limited | Financial services | 2024 |
| LPP Daresbury Limited | Financial services | 2020 |
| LPP Devco 5 Limited | Real estate | 2025 |
| LPP Parkside Holdings 2025 Limited | Financial services | 2025 |
| LPP Parkside Holdings Limited | Financial services | 2024 |
| LPP Parkside Limited | Real estate | 2020 |
| LPP Ventures Limited | Financial services | 2020 |
| LPP Wire Holdings Limited | Financial services | 2024 |
| LPP Wire Limited | Real estate | 2020 |
| LPS Projects Ltd | Professional & scientific | 2026 |
| LPT Payroll Services Limited | Financial services | 2007 |
| LR Cheer Wear Ltd | Wholesale & retail | 2023 |
| LRC Civil Engineering Ltd | Construction | 2007 |
| LRC Media Limited | Administrative & support | 2022 |
| LRF Design Ltd | Other services | 2019 |
| LRF Radiology Limited | Other services | 2023 |
| Lrotor Ltd | Administrative & support | 2025 |
| LRS Building Control Ltd | Administrative & support | 2026 |
| LRS Scaffolding Limited | Administrative & support | 2026 |
| LRV Properties & Developments Limited | Real estate | 2025 |
| LS Construction (North West) Limited | Construction | 2018 |
| LS Installations Limited | Professional & scientific | 2007 |
| LS Mechanical Ltd | Construction | 2025 |
| Lsaz Consultancy Ltd | Administrative & support | 2022 |
| LSB Services Ltd | Other services | 2019 |
| Lset Hire LLP | | 2014 |
| Lset Property Limited | Real estate | 2016 |
| LSH Developments Limited | Real estate | 2024 |
| LSI Property Ltd | Real estate | 2024 |
| Lslvp Corporation Limited | Other services | 2014 |
| LSR Commercial Services Ltd | Administrative & support | 2026 |
| LSV Consulting Ltd. | Professional & scientific | 2023 |
| Lswbk Limited | Health & social care | 2023 |
| Lt&T Holdings Limited | Financial services | 2022 |
| Lt&T Limited | Wholesale & retail | 2016 |
| Ltab Consulting Limited | Professional & scientific | 2019 |