| Linea EN2 Ltd | Real estate | 2016 |
| Linea EN6 Ltd | Real estate | 2017 |
| Linea Essex RD Ltd | Real estate | 2025 |
| Linea Homes Ltd | Real estate | 2015 |
| Linea N2 Ltd | Real estate | 2023 |
| Linea NW3 Ltd | Real estate | 2015 |
| Linea NW4 Ltd | Real estate | 2015 |
| Linea Property Ltd | Real estate | 2017 |
| Linea Staines Ltd | Real estate | 2025 |
| Linea Stratford Road Ltd | Real estate | 2022 |
| Linea SW6 Ltd | Real estate | 2025 |
| Linea UB7 Ltd | Real estate | 2018 |
| Linein Ltd | Health & social care | 2021 |
| Linen Gallery Limited | Wholesale & retail | 2016 |
| Lingam Fast Food Ltd | Hospitality | 2025 |
| Lingfield Ltd | Hospitality | 2006 |
| Link & Service Limited | Professional & scientific | 2011 |
| Linkage Cars Ltd | Transport & logistics | 2016 |
| Linked Investments Marketing Ltd | Professional & scientific | 2013 |
| Linked Logistics Limited | Transport & logistics | 2014 |
| Linkedarmy Ltd | Other services | 2017 |
| Linkfield Place Management Company Limited | Households | 2004 |
| Linknexus Limited | Professional & scientific | 2020 |
| Linko Hairport Limited | Other services | 2018 |
| Links Childcare Limited | Professional & scientific | 2017 |
| Linksphere Limited | Information & communication | 2010 |
| Linkuk Ltd | Education | 2014 |
| Linnell Court Management Company Limited | Households | 2015 |
| Linq Accounting Ltd | Professional & scientific | 2024 |
| Lins Capital Properties Ltd | Real estate | 2026 |
| Lins Hair and Beauty Limited | Other services | 2020 |
| Lins Recruitment Agency Limited | Administrative & support | 2023 |
| Linstead Group Limited | Administrative & support | 2016 |
| Linwood Management Co. Limited | Households | 1987 |
| Linx Property Investments Ltd | Real estate | 2020 |
| Lion Court (Hoebridge) Management Company Limited | Households | 2001 |
| Lion House Accounting Limited | Professional & scientific | 2026 |
| Lion J Services Ltd | Administrative & support | 2023 |
| Lion Lift Controls (2026) Ltd | Manufacturing | 2026 |
| Lion Yard Ramsey Limited | Households | 1990 |
| Lionheartfelt Ltd | Arts & recreation | 2020 |
| Lions Developers Properties Limited | Real estate | 2022 |
| Lions Key Estate Group Ltd | Real estate | 2020 |
| Liquaflex Ltd | Financial services | 2026 |
| Liquid Mobius Ltd | Professional & scientific | 2025 |
| Lisa Nails ATL Ltd | Other services | 2018 |
| Lisbeth Bucheli Ltd | Health & social care | 2020 |
| Lisette Construction Ltd | Construction | 2025 |
| Liston Care Ltd | Health & social care | 2023 |
| Liston Holdings Ltd | Information & communication | 2026 |
| Literally LIZ Copywriting Ltd | Professional & scientific | 2019 |
| Litigious Ltd | Professional & scientific | 2026 |
| Litsee Limited | Education | 2024 |
| Litta Ltd | Construction | 2025 |
| Littelo Animation Limited | Wholesale & retail | 2019 |
| Little Babes Limited | Wholesale & retail | 2011 |
| Little Courage Library CIC | Education | 2026 |
| Little Gems Day Nurseries Limited | Education | 2003 |
| Little Harp Social Limited | Education | 2023 |
| Little Italy London Ltd | Wholesale & retail | 2023 |
| Little Jannah Hair Ltd | Other services | 2011 |
| Little Jannah Limited | Other services | 2010 |
| Little Mill Management Limited | Households | 2011 |
| Little Pets Surrey Ltd | Wholesale & retail | 2022 |
| Little Princess Melanin Ltd | Health & social care | 2021 |
| Little Rayes Childcare (Home) Ltd | Health & social care | 2025 |
| Little Splodgers Limited | Arts & recreation | 2020 |
| Little Star Group Ltd | Wholesale & retail | 2020 |
| Little Steps Nursery Ltd | Education | 2019 |
| Little Tree Pictures Limited | Information & communication | 2016 |
| Littlebird Partnership Ltd | Wholesale & retail | 2018 |
| Littlemere Court Residents Association Limited | Households | 2002 |
| Littleton Place Management Company Limited | Households | 2004 |
| Littorio Ltd | Hospitality | 2021 |
| Live Proud Limited | Information & communication | 2022 |
| Live SIM Limited | Information & communication | 2019 |
| LIVE2HOME Property Management Services UK Ltd | Real estate | 2018 |
| Lividgate Limited | Wholesale & retail | 2008 |
| Livin Estate Agents Ltd | Real estate | 2022 |
| Livin Property Services Ltd | Real estate | 2026 |
| Living Care Family Services Ltd | Administrative & support | 2021 |
| Living M Limited | Wholesale & retail | 2020 |
| Livingstone Home Solutions Ltd | Real estate | 2024 |
| Livingstone Park Management Company Limited | Households | 2004 |
| Lizzard Ltd. | Other services | 2012 |
| Lizzie Healthcare Services Limited | Health & social care | 2015 |
| Lizzie’S N14 Ltd | Hospitality | 2021 |
| LJ Home Specialists Ltd | Administrative & support | 2021 |
| LJ Welding & Mechanical Services Ltd | Construction | 2015 |
| LJJ Exports Limited | Wholesale & retail | 2025 |
| LJM Housing Limited | Administrative & support | 2012 |
| LJR Plumbing and Heating Limited | Construction | 2022 |
| LJR Repairs Limited | Construction | 2026 |
| LK Build for YOU Ltd | Construction | 2021 |
| LK Build 4U Ltd | Construction | 2025 |
| LK Franchise Group Limited | Professional & scientific | 2025 |
| LK Upholstery Designs Limited | Wholesale & retail | 2025 |
| LKD Designs Limited | Manufacturing | 2015 |
| LKD London Limited | Wholesale & retail | 2010 |
| Lknh Consulting Limited | Professional & scientific | 2019 |