| Kernoozers Ltd | Wholesale & retail | 2015 |
| Keystone Pharma Consulting Limited | Information & communication | 2015 |
| Kher Investments Ltd | Financial services | 2024 |
| Kingsbury IT Consulting Ltd | Information & communication | 2017 |
| KIT Verity Limited | Wholesale & retail | 2024 |
| KK Bagshot Ltd | Construction | 2026 |
| KK Camberley Ltd | Construction | 2026 |
| KK Construction & Developments Ltd | Construction | 2026 |
| KK Construction & Renovations Ltd | Construction | 2026 |
| KK South East Ltd | Financial services | 2026 |
| KK Sunningdale Ltd | Construction | 2026 |
| Krybaby Limited | Other services | 2018 |
| Kurali Limited | Hospitality | 2025 |
| Lacomp Ltd | Financial services | 1984 |
| Lainston House Limited | Hospitality | 1983 |
| Land & Satellite Surveys Ltd | Professional & scientific | 2011 |
| Land Pyle Developments Ltd | Construction | 2023 |
| Landmaker Ltd | Construction | 2024 |
| Lantmannen Unibake UK Limited | Manufacturing | 1997 |
| Lasyl Audio Visual Centre Ltd | Wholesale & retail | 2011 |
| Lavanya London Ltd | Real estate | 2013 |
| Leading Insight Ltd | Professional & scientific | 2024 |
| Leela's Services Ltd | Other services | 2023 |
| Lemon Zest Maintenance Services Ltd | Administrative & support | 2021 |
| Lgfa Limited | Hospitality | 2025 |
| Lion Pride Investments Limited | Real estate | 2020 |
| Liquid Knox Limited | Construction | 2022 |
| Little Echoes Day Nursery Ltd. | Education | 2011 |
| Little Yews Management Limited | Households | 1994 |
| Lizzy Butler Design Limited | Professional & scientific | 2018 |
| Lockstep Solutions Ltd | Wholesale & retail | 2025 |
| London & Worldwide Property Limited | Real estate | 2006 |
| Longacres Garden Centre Limited | Wholesale & retail | 2011 |
| Longacres Landscape Limited | Administrative & support | 2004 |
| Longbarrow Group Limited | Real estate | 2019 |
| Lottie Kidd Ltd | Professional & scientific | 2025 |
| Love Old Buildings Ltd | Extraterritorial | 2020 |
| Lovejoy Wolford Limited | Real estate | 2025 |
| Lower Forest Housing Limited | Professional & scientific | 1979 |
| Loyly Bespoke Ltd | Manufacturing | 2026 |
| LR Medical Communications Ltd | Professional & scientific | 2026 |
| LSE Mccready Ltd | Wholesale & retail | 2024 |
| Ludo Zone Ltd | Arts & recreation | 2023 |
| Lumleys of Windlesham Ltd | Real estate | 2024 |
| Lumleys.Net (UK) Limited | Professional & scientific | 2007 |
| Luna Cars Egham Limited | Transport & logistics | 2020 |
| Lwcom | Other services | 1997 |
| Lyndhurst Roofing Limited | Construction | 2010 |
| M Effect Limited | Professional & scientific | 2024 |
| M I Property Maintenance and Development Limited | Construction | 2019 |
| Maggwin Limited | Health & social care | 2017 |
| MAI People Limited | Information & communication | 2023 |
| Mainstream Cleaning Ltd | Administrative & support | 2011 |
| Malex Limited | Professional & scientific | 2010 |
| Mancraft ABC Limited | Construction | 2021 |
| Mancraft BD Limited | Construction | 2021 |
| Mancraft BH Ltd | Construction | 2021 |
| Mancraft CPL Limited | Construction | 2021 |
| Mancraft E Limited | Construction | 2021 |
| Mancraft Limited | Real estate | 2013 |
| Mann Design & Build Limited | Transport & logistics | 2019 |
| Manor Wood Grove Management Limited | Households | 2025 |
| Mapes and Caines Ltd | Households | 2022 |
| Maraya Homes Limited | Real estate | 2018 |
| Marine Geotechnx Ltd | Administrative & support | 2024 |
| Marketscamp Ltd | Information & communication | 2011 |
| Martin & Co Accountants Limited | Professional & scientific | 2010 |
| MAS Interiors Limited | Construction | 2004 |
| Masala Box Ltd | Financial services | 2008 |
| Mascott Electrics Limited | Construction | 2020 |
| Matchhampers Ltd | Wholesale & retail | 2021 |
| Medac Limited | Professional & scientific | 1987 |
| Medicare UK Solutions Services Limited | Health & social care | 2025 |
| Medicareuk Solutions Limited | Administrative & support | 2025 |
| Medos Strategies Ltd | Professional & scientific | 2024 |
| Melissa Kemp Limited | Wholesale & retail | 2018 |
| Metis Communication Ltd | Arts & recreation | 2021 |
| Miki Toosh Limited | Construction | 2015 |
| Mindenhurst Management Company (Number 2) Limited | Households | 2023 |
| Mindenhurst Management Company Limited | Households | 2018 |
| Mini Lovers Limited | Wholesale & retail | 2012 |
| Minimarket Ltd | Wholesale & retail | 2013 |
| Mint Kitchen Sprays Limited | Construction | 2017 |
| Mittal & Associates Consulting Limited | Professional & scientific | 2016 |
| Monarker Properties Ltd | Real estate | 2024 |
| Mossgrove Wells Limited | Information & communication | 1996 |
| Motherhood Online Ltd | Information & communication | 2023 |
| Motion Remote Ltd | Information & communication | 2017 |
| Movco Ltd | Information & communication | 2025 |
| Movements for Studying Ltd | Health & social care | 2024 |
| MPK Services Limited | Administrative & support | 2014 |
| MR Mini Limited | Wholesale & retail | 2010 |
| MRS Mini Limited | Wholesale & retail | 2010 |
| My Property Specialists Limited | Real estate | 2023 |
| Nadam Care Ltd | Health & social care | 2011 |
| Naitureclear Ltd | Information & communication | 2026 |
| Nationwide Assessment Ltd | Professional & scientific | 2010 |
| Natural Baby Shower Ltd | Wholesale & retail | 2012 |
| Navayu Ltd | Real estate | 2024 |
| Neal Lucas Sports Cars Limited | Wholesale & retail | 2001 |