| John-Ray Care Enterprise Ltd | Health & social care | 2014 |
| Jpro Services Ltd | Professional & scientific | 2007 |
| JRS Garden Designs Limited | Administrative & support | 2018 |
| JRS Property Enterprise Ltd | Real estate | 2024 |
| Junior Academy of Modern Music LLP | | 2022 |
| Junkclear Limited | Water & waste | 2006 |
| JW Storage Limited | Transport & logistics | 2004 |
| K&J Commercial Hire Ltd | Administrative & support | 2026 |
| Kamway Engineering Limited | Manufacturing | 1968 |
| Kandare Ltd | Extraterritorial | 2012 |
| Kate Creative Ltd | Wholesale & retail | 2016 |
| Keith Millican Corporate Support Limited | Professional & scientific | 2000 |
| Kelvin Maintenance Ltd | Manufacturing | 2023 |
| Kerlie Transport Group Ltd | Wholesale & retail | 2023 |
| Ketocollege Limited | Education | 2010 |
| Kevin Robinson Limited | Administrative & support | 2002 |
| Kings Glazing Ltd | Construction | 2025 |
| Kissst Luxury Vending Ltd | Wholesale & retail | 2023 |
| Kitchen Works 1996 Ltd | Wholesale & retail | 1996 |
| KM Distribution Centre Ltd | Wholesale & retail | 2010 |
| Kneed the Dough Ltd | Manufacturing | 2022 |
| Knights Mead Residents Association Limited | Households | 2007 |
| KS Toppers and Cakes Ltd | Wholesale & retail | 2022 |
| Kudos Motorcare Ltd | Wholesale & retail | 2025 |
| Kuzax Limited | Administrative & support | 2002 |
| Kwiqly (UK) Limited | Professional & scientific | 2004 |
| LA Belle Roofing Co. Limited | Construction | 1975 |
| Langer AER Solutions Ltd | Professional & scientific | 2025 |
| Laurence Martin Opticians Limited | Health & social care | 2007 |
| LC74 Ltd | Hospitality | 2025 |
| LE Bureau Lewes Limited | Manufacturing | 2002 |
| LE Bureau Limited | Information & communication | 1996 |
| LE Chateau Textiles Ltd | Wholesale & retail | 2009 |
| LE Chateau Warehouse Services Ltd | Other services | 2009 |
| Ledbetter Property Ltd | Construction | 2026 |
| Lelliott Movie Mouldings Limited | Construction | 2014 |
| Lepordstown Residents Limited | Extraterritorial | 1990 |
| Let's BE Ltd | Professional & scientific | 2017 |
| Level World Limited | Other services | 2018 |
| LF Cafe Limited | Hospitality | 2023 |
| Lily's of Lingfield Ltd | Wholesale & retail | 2020 |
| Lingfield Alarm Systems Ltd | Administrative & support | 2015 |
| Lingfield and Dormansland Community Centre | Other services | 1998 |
| Lingfield and Dormansland Rifle and Pistol Club Ltd | Arts & recreation | 2018 |
| Lingfield Bespoke Interiors Ltd | Construction | 2024 |
| Lingfield College | Education | 1986 |
| Lingfield College International Limited | Professional & scientific | 2018 |
| Lingfield Cricket Club Limited | Arts & recreation | 2012 |
| Lingfield Guest House Trustee Limited | Administrative & support | 2015 |
| Lingfield Motorworks Ltd | Wholesale & retail | 2019 |
| Lingfield Pizza Parlour Ltd | Hospitality | 2022 |
| Lingfield Sports Club Limited | Arts & recreation | 2023 |
| Lingfield United Trust | Hospitality | 2012 |
| Lingford Properties Limited | Real estate | 1993 |
| Lingstead Construction Limited | Construction | 2017 |
| Lionheart Scaffolding Ltd | Construction | 2018 |
| Little Chums PRE School & Forest School Limited | Education | 2026 |
| LJE Modular Maintenance Limited | Construction | 2011 |
| LL Foods and Distribution Ltd | Hospitality | 2026 |
| Loex Ltd | Professional & scientific | 2026 |
| London Furniture Makers Ltd | Manufacturing | 2025 |
| Love & Light Ltd | Other services | 2002 |
| Love Plumbing Domestic Ltd | Construction | 2021 |
| Lucsimvets Limited | Professional & scientific | 2016 |
| Lulah LOU Ltd | Other services | 2021 |
| Lumia Migration & Immigration Assistance Ltd | Administrative & support | 2025 |
| Lunar Building Projects Limited | Construction | 2019 |
| Lynchpin Creative Limited | Information & communication | 2014 |
| M & S Metalcraft Ltd | Construction | 1998 |
| M Cars Surrey Ltd | Wholesale & retail | 2016 |
| M&A Smart Property Limited | Real estate | 2024 |
| M&C Autos 2021 Ltd | Wholesale & retail | 2021 |
| M&S UK Homes Ltd | Construction | 2023 |
| MAC 1 Aviation Limited | Manufacturing | 2022 |
| Maddox Street Advisers LLP | | 2024 |
| Marsil Developments Limited | Construction | 1972 |
| Matthew James Consultants Limited | Information & communication | 2018 |
| Maxx Products Ltd | Other services | 2017 |
| MBT Commercial Services Limited | Professional & scientific | 2007 |
| Mcgill University Trust | Education | 1995 |
| Mclean Cleaning Limited | Administrative & support | 2001 |
| Meadhurst Investment (Holdings) Limited | Real estate | 2022 |
| Meadhurst Investments Ltd | Real estate | 2022 |
| Medimats Ltd | Wholesale & retail | 2019 |
| Mellrose Consulting Limited | Professional & scientific | 2025 |
| Meridius Ltd | Hospitality | 2023 |
| Michael Redmond Architectural Design Ltd | Professional & scientific | 2023 |
| Mikail Property Ltd | Real estate | 2025 |
| MJC Telecom Solutions Ltd | Information & communication | 2019 |
| Morleyhaulage Ltd | Transport & logistics | 2025 |
| Motion Pet Rehab LLP | | 2018 |
| MP Racing Limited | Arts & recreation | 2022 |
| MR Pump Ltd | Financial services | 2020 |
| MR TAP Ltd | Manufacturing | 2014 |
| Mura Studio U.K. Ltd | Wholesale & retail | 2025 |
| Musa Property Group Ltd | Real estate | 2024 |
| Musselwhite Builders Limited | Construction | 1979 |
| Naked Investments Ltd | Wholesale & retail | 2019 |
| National Dog Boarding Centre Ltd | Extraterritorial | 2025 |
| Native Escapes Limited | Administrative & support | 2007 |