| Lovesinks Ltd | Wholesale & retail | 2010 |
| Lovetocare Home Care Bolton Ltd | Health & social care | 2023 |
| Loving My Socials Ltd | Professional & scientific | 2024 |
| Lovoullo Limited | Wholesale & retail | 2024 |
| LOW Carbon Electric Limited | Professional & scientific | 2015 |
| LOW Carbon Retrofits Ltd | Administrative & support | 2024 |
| Lowe Property Developments Limited | Construction | 1986 |
| Lowell Transport Ltd | Transport & logistics | 2023 |
| Lowson Family Ltd | Hospitality | 2023 |
| Lowther Court (Prestwich) Management Limited | Households | 1974 |
| Lowton JV Limited | Administrative & support | 2020 |
| Lowton Motor Company Limited | Wholesale & retail | 2012 |
| Loxley Procurement Limited | Information & communication | 2013 |
| Loyb Ltd | Administrative & support | 2016 |
| Lozan Barbers Limited | Other services | 2015 |
| Lozano Dates Ltd | Wholesale & retail | 2025 |
| LP Consultancy Services Limited | Professional & scientific | 2021 |
| LP Getaways Ltd | Administrative & support | 2023 |
| LP Investment Holdings Limited | Real estate | 2025 |
| LP Logistics Limited | Administrative & support | 2015 |
| LP Property Investment Limited | Real estate | 2016 |
| LP SD One Hundred Two Limited | Wholesale & retail | 2023 |
| LP SD Seventy Eight Limited | Wholesale & retail | 2023 |
| LPG NO 2 Ltd | Administrative & support | 2018 |
| LPG Scaffolding Limited | Construction | 2018 |
| LPG2 Carry LLP | | 2017 |
| LPH Joinery Ltd | Construction | 2014 |
| LPM Property Solutions Ltd | Real estate | 2020 |
| LPM Publishing Ltd | Information & communication | 2025 |
| LPN Properties Ltd | Real estate | 2023 |
| LPR ODC Ltd | Hospitality | 2024 |
| LPR Restaurants Ltd | Hospitality | 2023 |
| LPS Stays Ltd | Real estate | 2025 |
| LR Travels & Tourism Limited | Administrative & support | 2026 |
| LRD Recording Limited | Information & communication | 2023 |
| LRF Real Estate Ltd | Real estate | 2025 |
| LRH Investments Ltd | Real estate | 2025 |
| LRH Roofing Services Ltd | Construction | 2020 |
| Lrnw Limited | Construction | 2024 |
| LS Invest Ltd | Real estate | 2022 |
| LS Rail 24 Limited | Construction | 2019 |
| LSA EOT Ltd | Construction | 2024 |
| LSC Rail Ltd | Other services | 2024 |
| Lsfw Limited | Wholesale & retail | 2011 |
| LSG Building Services Ltd | Construction | 2024 |
| LSH Logistics Limited | Transport & logistics | 2018 |
| LSJ Medical Ltd Ltd | Health & social care | 2024 |
| Lska Properties Ltd | Real estate | 2025 |
| Lskb Ltd | Wholesale & retail | 2025 |
| LSV Feet Limited | Health & social care | 2025 |
| LSW Group Ltd | Financial services | 2016 |
| LSW Supply Ltd | Construction | 2016 |
| LT Campbell Services Limited | Transport & logistics | 2024 |
| LT Facilities Management Limited | Manufacturing | 2017 |
| LTJ Property Limited | Households | 2024 |
| Ltkprofessional Ltd | Administrative & support | 2025 |
| LTL Property Solutions Ltd | Real estate | 2019 |
| LTT Commercial Limited | Real estate | 2025 |
| LTW Developments Limited | Construction | 2005 |
| Luca Optical Limited | Health & social care | 2003 |
| LUCA247 Limited | Wholesale & retail | 2025 |
| Lucas Mclean Recruitment Limited | Administrative & support | 2011 |
| Lucellum Limited | Information & communication | 2018 |
| Luceo Ltd. | Information & communication | 2017 |
| Luchidnet Limited | Professional & scientific | 2021 |
| Lucianos on Location Ltd | Hospitality | 2012 |
| Lucid Launch Ltd | Information & communication | 2023 |
| Lucky Mobile and Vape Shop Ltd | Wholesale & retail | 2025 |
| Lucky Star Bolton Ltd | Hospitality | 2021 |
| Lucky Sunday Limited | Professional & scientific | 2024 |
| Lucky Vault Ltd | Arts & recreation | 2025 |
| LUCKYBROTHERS786 Ltd | Administrative & support | 2026 |
| Luckynex Limited | Professional & scientific | 2026 |
| Lucrative Commerce Ltd | Administrative & support | 2024 |
| Lucsan Property Ltd | Real estate | 2017 |
| Lucy's on a Plate Ltd | Hospitality | 2015 |
| Luditall Ltd | Professional & scientific | 2011 |
| Luelle 1 Limited | Real estate | 2024 |
| Luelle 2 Ltd | Real estate | 2024 |
| Luelle Limited | Real estate | 2024 |
| Luelle Projects Limited | Construction | 2024 |
| Luelle Property Group Ltd | Real estate | 2024 |
| LUELLE22 Limited | Real estate | 2024 |
| LUKATO2 Analysis Ltd | Information & communication | 2023 |
| Luke Barnett Property Management Ltd | Construction | 2018 |
| Luke Howell Ltd | Other services | 2019 |
| Luke Joyce Pro Football Academy Limited | Education | 2019 |
| Luke Lettings Ltd | Real estate | 2019 |
| Lukelle Holdings | Administrative & support | 2017 |
| Lukes Cars 4 U Limited | Wholesale & retail | 2018 |
| Lukesme Properties Ltd | Real estate | 2021 |
| Lulu’S Sweet Tooth Ltd | Hospitality | 2025 |
| Lulworth Entertainment Limited | Arts & recreation | 2019 |
| Lumier Eyes Ltd | Health & social care | 2024 |
| LUMIN8 Aesthetics Ltd | Other services | 2023 |
| Lumina Home Decor Limited | Wholesale & retail | 2026 |
| Lumina Inclusive Education Ltd | Education | 2026 |
| Lumina Pathways CIC | Hospitality | 2025 |
| Luminite Design Ltd | Information & communication | 2022 |
| Luminous Craft Ltd | Wholesale & retail | 2023 |