| London Accounts Ltd | Professional & scientific | 2024 |
| London Bespoke Carpenter Ltd | Manufacturing | 2024 |
| London Beverages Group Ltd | Manufacturing | 2023 |
| London Bridge Enterprises Ltd | Professional & scientific | 2021 |
| London Building Works Ltd | Construction | 2019 |
| London Capital Plumbing and Heating Ltd | Construction | 2026 |
| London Centre for Development Ltd | Education | 2021 |
| London Consultants Limited | Professional & scientific | 2011 |
| London Cosmetic Clinic Ltd | Health & social care | 2023 |
| London Deluxe Ltd | Administrative & support | 2017 |
| London Dhaba & Caterers Limited | Hospitality | 2020 |
| London Double Glazing Limited | Construction | 2017 |
| London Dryliners Ltd | Construction | 2022 |
| London EBP Network | Education | 2000 |
| London EPC Surveyors Ltd | Professional & scientific | 2020 |
| London Executive Aviation Limited | Transport & logistics | 1995 |
| London Gate Ventures Ltd | Real estate | 2026 |
| London General Group 365 Limited | Other services | 2025 |
| London Gilbert Limited | Wholesale & retail | 2025 |
| London Global Emergency Medicine Ltd | Education | 2022 |
| London Greenwich College Ltd | Education | 2003 |
| London GUT Care Limited | Health & social care | 2025 |
| London Homecare Ltd | Health & social care | 2018 |
| London Hybrid Parts Ltd | Wholesale & retail | 2018 |
| London Kitchen & Bedroom Ltd | Manufacturing | 2022 |
| London Kitchen Installation Limited | Households | 2014 |
| London Loft Extensions Ltd | Construction | 2022 |
| London Luxe Limited | Wholesale & retail | 2024 |
| London Master Blaster Ltd | Arts & recreation | 2025 |
| London Metropolitan Group Ltd | Administrative & support | 2025 |
| London Midland Ltd | Real estate | 2023 |
| London Mobile Tyre Express 24/7 Ltd | Wholesale & retail | 2024 |
| London PCO Hire Limited | Administrative & support | 2026 |
| London Pipework Limited | Professional & scientific | 2009 |
| London Precast Systems Limited | Manufacturing | 2011 |
| London Pro Builder's Limited | Construction | 2018 |
| London Projects and Design Solutions Limited | Real estate | 2025 |
| London Property Corporation Limited | Real estate | 2020 |
| London Property Solution Services Ltd | Construction | 2018 |
| London Radiology Centre Ltd | Health & social care | 2026 |
| London Rapid Vehicle Services Ltd | Wholesale & retail | 2026 |
| London Road Local Limited | Wholesale & retail | 2024 |
| London Road Tyres Ltd | Wholesale & retail | 2025 |
| London Roots for Change CIC | Education | 2024 |
| London Safe & Vault Ltd | Professional & scientific | 2002 |
| London School of Counselling and Management Ltd | Education | 2014 |
| London Shipping Law Ltd | Financial services | 2023 |
| London Shipping Venture Ltd | Financial services | 2023 |
| London Shopfronts & Shutters Ltd | Construction | 2026 |
| London Site Construction Ltd | Construction | 2024 |
| London Smart Construction Ltd | Construction | 2017 |
| London Solutions CMB Ltd | Households | 2018 |
| London Solutions DXB Limited | Information & communication | 2019 |
| London Space Investments Limited | Households | 2020 |
| London Star Care Limited | Health & social care | 2023 |
| London Student Accommodation Limited | Hospitality | 2016 |
| London Sweepers Hire Limited | Water & waste | 2010 |
| London Sync Ltd | Information & communication | 2018 |
| London Teaching Pool Limited | Administrative & support | 2006 |
| London Thermal Insulation Ltd | Manufacturing | 2022 |
| London Turbos Ltd | Manufacturing | 2012 |
| London Universal College of Excellence Ltd | Education | 2020 |
| London Venture Capital Ltd | Real estate | 2025 |
| London Waste & Recycling Limited | Water & waste | 2018 |
| London-East Transportation Services Limited | Transport & logistics | 2014 |
| Londonfix Plumbing & Heating Ltd | Construction | 2019 |
| Londonmentor Ltd | Education | 2022 |
| Long Island Shutters and Awnings Limited | Construction | 2025 |
| Long Island Shutters Limited | Construction | 2007 |
| Long Partners Holding Company Limited | Financial services | 2021 |
| Longreach Building Limited | Construction | 2008 |
| Longstar Trading Limited | Wholesale & retail | 2013 |
| Lonom Ltd | Manufacturing | 2020 |
| Lonspires Gear Ltd. | Wholesale & retail | 2021 |
| Lontech Facilities Limited | Administrative & support | 2019 |
| Lontech Security Limited | Administrative & support | 2017 |
| Look Beyond the Garden C.I.C. | Wholesale & retail | 2020 |
| Loom Enterprise Ltd | Wholesale & retail | 2026 |
| Loose Brands Holdings Ltd | Hospitality | 2019 |
| Lorand Transport Limited | Transport & logistics | 2019 |
| Lorck Crest Limited | Wholesale & retail | 2026 |
| Lord of the Manor Limited | Real estate | 2019 |
| Lords Coffee Ltd | Hospitality | 2020 |
| Loret Ltd | Other services | 2022 |
| Lori Construction Services Limited | Construction | 2021 |
| Lorénne Pierrette Celine Limited | Extraterritorial | 2024 |
| Loss Adjusting Group Ltd | Financial services | 2023 |
| Lostinlondon Nails & Spa Ltd | Other services | 2025 |
| Lotus Community Services Ltd | Health & social care | 2021 |
| Lotus Convenience Limited | Wholesale & retail | 2014 |
| Lotus Properties (Essex) Limited | Real estate | 2026 |
| Lotus Roots Technologies Ltd | Wholesale & retail | 2025 |
| Lotvao Limited | Professional & scientific | 2015 |
| Loughton Movement Clinic Ltd | Arts & recreation | 2016 |
| Louise Daniels Limited | Construction | 2004 |
| Louise Francis Properties (Doncaster) Ltd | Real estate | 2021 |
| Louise Francis Properties (Gainsborough) Ltd | Real estate | 2017 |
| Louise Francis Properties (Lincoln) Ltd | Real estate | 2021 |
| Louise Francis Properties (London) Ltd | Real estate | 2021 |
| Louise Francis Property Management Ltd | Real estate | 2021 |