| London Best Chauffeur Services Ltd | Transport & logistics | 2025 |
| London Broast Ltd | Hospitality | 2022 |
| London Bronze Limited | Manufacturing | 2011 |
| London Centre of Digital Marketing (Lcdm) Ltd | Education | 2024 |
| London City Clearance Limited | Water & waste | 2016 |
| London City Stream Limited | Transport & logistics | 2021 |
| London Cleaning (U.K) Ltd | Other services | 2024 |
| London College of Business and Computing Limited | Education | 2026 |
| London College of Marketing Limited | Education | 2023 |
| London College of Medicine & Health Science Limited | Education | 2026 |
| London College of Medicine & Science Limited | Education | 2026 |
| London Cricket Club CIC | Arts & recreation | 2026 |
| London Doner and Fish Ltd | Hospitality | 2025 |
| London Education City Limited | Education | 2015 |
| London EYE Construction Ltd | Construction | 2020 |
| London Grill and Catering Ltd | Hospitality | 2022 |
| London Language Club Limited | Professional & scientific | 2017 |
| London Legal Ltd | Professional & scientific | 2020 |
| London Lighting and Facilities Management Limited | Construction | 2014 |
| London Minerals Supply Co Ltd | Wholesale & retail | 2024 |
| London OG Ltd | Hospitality | 2025 |
| London Pedicab Tour and Renting Services Ltd | Transport & logistics | 2021 |
| London Photobooths Limited | Administrative & support | 2017 |
| London Plastering Elite Ltd | Construction | 2025 |
| London Qualifications & Assessments Limited | Education | 2012 |
| London Riverside Church | Other services | 2008 |
| London Riverside Foundation | Health & social care | 2006 |
| London Roxana Limited | Manufacturing | 2025 |
| London School of Business and Professional Studies Ltd | Education | 2020 |
| London School of Business Informatics Ltd | Education | 2021 |
| London Shutter and Shopfront Ltd | Construction | 2026 |
| London Sources of Employment (Lsoe) Ltd | Real estate | 2022 |
| London Star Cleaning Ltd | Administrative & support | 2024 |
| London Steel Site Services Ltd | Professional & scientific | 2023 |
| London Tea Exchange Limited | Manufacturing | 2025 |
| London Tea Exchange Trade Limited | Wholesale & retail | 2018 |
| London Trade Ltd | Wholesale & retail | 2022 |
| London Travel Protection Ltd | Transport & logistics | 2022 |
| London Urban Group Limited | Extraterritorial | 2024 |
| London&Homes Ltd | Real estate | 2026 |
| Londonc&Mchauffeurs Ltd | Transport & logistics | 2026 |
| Londonchucks Ltd | Other services | 2020 |
| Londoneast-Uk Limited | Administrative & support | 2014 |
| Londonhomegardensolutions Ltd | Administrative & support | 2025 |
| Londons Chauffeur Limited | Transport & logistics | 2020 |
| Longbridge Community Centre Ltd | Administrative & support | 2024 |
| Longdere Limited | Extraterritorial | 2025 |
| Longland Construction Ltd | Construction | 2014 |
| Longland Shops Ltd | Wholesale & retail | 2017 |
| Lookatmelux Ltd | Construction | 2021 |
| Loop B4BATIQUE Limited | Wholesale & retail | 2025 |
| Lor.Ca & Sons Solutions Limited | Construction | 2021 |
| Lord & Angel Estates Limited | Real estate | 2004 |
| Lordcote Consultancy Ltd | Administrative & support | 2020 |
| Lordcote Enterprises Ltd | Administrative & support | 2020 |
| Lordcote Limited | Administrative & support | 2015 |
| Lordcote Services Ltd | Administrative & support | 2020 |
| Lords Estate Agent Ltd | Real estate | 2025 |
| Loreon Ltd | Health & social care | 2023 |
| Lorzor Limited | Health & social care | 2024 |
| LOS Tacos Ltd | Hospitality | 2021 |
| Lost Paradise Ltd | Wholesale & retail | 2018 |
| Lotcg Ltd | Wholesale & retail | 2025 |
| Lotusville Limited | Information & communication | 2013 |
| Loud Digital Music Records Ltd | Information & communication | 2011 |
| Loumia Ltd | Construction | 2019 |
| Love Food Services Ltd | Hospitality | 2023 |
| LOVE2REMOVALS Ltd | Transport & logistics | 2020 |
| Lovell Concrete Solutions Limited | Manufacturing | 2025 |
| Lovella Ltd | Wholesale & retail | 2025 |
| Lowa Stat Limited | Wholesale & retail | 2021 |
| Lowo Properties Ltd | Households | 2022 |
| Lozain Ltd | Information & communication | 2018 |
| Lozjony Ltd | Transport & logistics | 2020 |
| LP Cosmetics Limited | Wholesale & retail | 2025 |
| LPK Education Limited | Education | 2026 |
| Lrauktransport Ltd | Transport & logistics | 2026 |
| Lroi Limited | Health & social care | 2015 |
| LRS Laboratories Ltd | Professional & scientific | 2026 |
| LS Alpha Ltd | Transport & logistics | 2026 |
| LS and E Logistics Ltd | Transport & logistics | 2013 |
| Lsjworld Ltd | Wholesale & retail | 2021 |
| LSL Property Holdings Limited | Construction | 2025 |
| LSR Contractors Ltd | Construction | 2023 |
| Lssl Care Ltd | Health & social care | 2026 |
| LT Construction Limited | Construction | 2012 |
| LT Property Maintenance Ltd | Construction | 2026 |
| LT Ramore Ltd | Construction | 2026 |
| LT Scaffolding Limited | Administrative & support | 2012 |
| LT Travel Limited | Transport & logistics | 2023 |
| LTE London Franchise Ltd | Wholesale & retail | 2013 |
| Ltronix Ltd | Wholesale & retail | 2019 |
| Luan Prime Meats Ltd | Wholesale & retail | 2025 |
| Lucas AR Ltd | Construction | 2019 |
| Lucas Cleaning 17 Ltd | Construction | 2025 |
| Lucas Roofing Ltd | Construction | 2022 |
| Lucavel Ltd | Wholesale & retail | 2025 |
| Lucen Energy Ltd | Construction | 2025 |
| Luciano Enterprises (UK) Limited | Construction | 2005 |
| Lucianx Construction Ltd | Construction | 2025 |