| Logic 24 Consulting Limited | Information & communication | 2011 |
| London 01 Shop Ltd | Wholesale & retail | 2015 |
| London and Surrey Electrical Services Limited | Construction | 2014 |
| London Best Removals Limited | Transport & logistics | 2020 |
| London Camue Ltd | Wholesale & retail | 2019 |
| London Commercial Management Services Limited | Construction | 2024 |
| London Cupid Ltd | Administrative & support | 2024 |
| London Cycle Hire Ltd | Administrative & support | 2020 |
| London E-Water Ltd | Wholesale & retail | 2020 |
| London Elite Gardeners Ltd | Other services | 2024 |
| London Excellence Chauffeur Ltd | Transport & logistics | 2023 |
| London First Care Services Ltd | Administrative & support | 2024 |
| London Food and Wine Shop Ltd | Wholesale & retail | 2023 |
| London Goodview Ltd | Real estate | 2024 |
| London GV7 Ltd | Real estate | 2024 |
| London GV9 Ltd | Real estate | 2024 |
| London GVG Ltd | Real estate | 2024 |
| London Gvstay Ltd | Real estate | 2024 |
| London GVW Ltd | Real estate | 2024 |
| London Harley Street Clinics Ltd | Health & social care | 2018 |
| London Kim's Dance Group CIC | Education | 2022 |
| London Legal Consultancy Limited | Professional & scientific | 2014 |
| London Mummy Hand Limited | Wholesale & retail | 2020 |
| London Phoenix Cigars Ltd | Wholesale & retail | 2025 |
| London Policy & Development Management Ltd. | Education | 2000 |
| London Pro Group Holdings Ltd | Financial services | 2023 |
| London Security Experts Ltd | Administrative & support | 2023 |
| London Select Co. Ltd | Wholesale & retail | 2026 |
| London Sketch Ltd | Administrative & support | 2017 |
| London Stoneworks Limited | Construction | 2017 |
| London Surrey Electrical Services Limited | Construction | 2020 |
| Londoncatgrooming Ltd | Other services | 2026 |
| Long Jaunt Ltd | Manufacturing | 2022 |
| Longbridge Trading Ltd | Wholesale & retail | 2026 |
| Longoni Design Limited | Professional & scientific | 2017 |
| Lotus House Residential Limited | Health & social care | 2016 |
| Loughfield Limited | Households | 1979 |
| Love LUX London Ltd | Wholesale & retail | 2019 |
| Love the Ball Limited | Arts & recreation | 2013 |
| Loveset Limited | Construction | 2013 |
| LR Maintenance Ltd | Construction | 2023 |
| LRM Publishing Limited | Information & communication | 2020 |
| LS Cable & System UK Limited | Administrative & support | 2008 |
| LS Eco Advanced Cables Limited | Professional & scientific | 2020 |
| Lselvaj Ltd | Professional & scientific | 2022 |
| Luchow Solutions Ltd | Information & communication | 2021 |
| Luke London Design & Build Ltd | Construction | 2022 |
| Luke London Windows Ltd | Wholesale & retail | 2023 |
| Luminescent Child Limited | Health & social care | 2024 |
| Lumini Properties Limited | Real estate | 2016 |
| Lumini Solutions Ltd | Information & communication | 2019 |
| Lupang Ltd | Wholesale & retail | 2019 |
| LUX Celebrations Ltd | Other services | 2015 |
| LUX Fleet Limited | Transport & logistics | 2023 |
| Luxilla Limited | Real estate | 2022 |
| Luxury Masters Limited | Wholesale & retail | 2026 |
| Luxx London Ltd | Wholesale & retail | 2018 |
| Luxxo Lifestyle Limited | Wholesale & retail | 2026 |
| LV Refurbishments Ltd | Construction | 2023 |
| Lv&Hv Services Ltd | Construction | 2018 |
| LY Service Limited | Education | 2024 |
| LY Wood Furniture Limited | Wholesale & retail | 2025 |
| LY Zinyuke Limited | Administrative & support | 2016 |
| LYB88 Ltd | Hospitality | 2022 |
| Lydia & Yang Limited | Professional & scientific | 2012 |
| LYF Bowl Limited | Hospitality | 2022 |
| Lyme Court Solutions Ltd | Information & communication | 2011 |
| Lynna London Ltd | Wholesale & retail | 2019 |
| Lynwood Road Residents Association Limited | Real estate | 2000 |
| Lynx Information Systems Limited | Information & communication | 1989 |
| Lyquidity Solutions Limited | Information & communication | 2001 |
| Lysander Shipping Limited | Transport & logistics | 1993 |
| M & L Beqiri Limited | Other services | 2022 |
| M Flanagan Limited | Construction | 2017 |
| M Project Wimbledon Ltd | Construction | 2020 |
| M S & K Financial Services Limited | Professional & scientific | 2009 |
| M Sound Limited | Information & communication | 2007 |
| M SQUARED2 Ltd | Construction | 2023 |
| M Y TEH & Co Limited | Professional & scientific | 2010 |
| M.E. (New Malden) Limited | Real estate | 2008 |
| MA & Sons Ltd | Wholesale & retail | 2020 |
| Ma&Y Ltd | Arts & recreation | 2014 |
| Maadu Co Ltd | Wholesale & retail | 2026 |
| MAC4YOU Ltd | Construction | 2017 |
| Mach-Dynamo Limited | Professional & scientific | 2021 |
| Machidex Healthcare Limited | Administrative & support | 2020 |
| Macondo Investment Ltd | Real estate | 2021 |
| Macosta Ltd | Health & social care | 2024 |
| Macror Plumbing Ltd | Manufacturing | 2005 |
| Macsh Ltd | Information & communication | 2023 |
| Madeasy Consulting Limited | Other services | 2018 |
| MAG Medical Ltd | Health & social care | 2017 |
| Magic Colours Painting and Decorating Ltd | Construction | 2026 |
| Magic Munch Limited | Hospitality | 2024 |
| Magnet Creative Limited | Professional & scientific | 2025 |
| Makerswap Ltd | Information & communication | 2025 |
| Makran Traders Ltd | Construction | 2023 |
| Maky Corporations Limited | Hospitality | 2023 |
| Malden Court Limited | Households | 2008 |
| Malden Dental Care Ltd | Health & social care | 2010 |