| DR LEO Mashensky Limited | Health & social care | 2010 |
| DR LEO ROM Limited | Health & social care | 2010 |
| DR Neil Kramer Limited | Health & social care | 2009 |
| DR Peter Andrews Limited | Health & social care | 2011 |
| DR Ravi Derm Ltd | Health & social care | 2024 |
| DR Steven Werb Ltd | Health & social care | 2013 |
| DR Sunil Chopra Limited | Health & social care | 2011 |
| Drawing Down the Moon Limited | Other services | 1989 |
| East Kent ENT Ltd | Health & social care | 2013 |
| Edhr Solutions Limited | Professional & scientific | 2010 |
| ELI Joffe Limited | Health & social care | 2025 |
| Elikonte Ltd | Wholesale & retail | 2022 |
| Enakert Limited | Health & social care | 2021 |
| EPI UPS UK Ltd | Wholesale & retail | 2020 |
| Estlyna Ltd | Health & social care | 1987 |
| Excellence in Dental Healthcare Ltd | Health & social care | 2022 |
| FFI Pizza Co Ltd | Hospitality | 2025 |
| Figurit Limited | Professional & scientific | 2013 |
| Franckly My Dear Ltd | Other services | 2014 |
| Freelance Consult Ltd | Information & communication | 2023 |
| G Carrier Ltd | Transport & logistics | 2019 |
| Gate Lodge Holdings Ltd | Financial services | 2018 |
| Global ERP IT Solutions Limited | Information & communication | 2011 |
| Gosuper Ltd | Information & communication | 2021 |
| Green Frog INK Limited | Extraterritorial | 2020 |
| Groove Media Global Limited | Arts & recreation | 2025 |
| Grove Alliance CIC | Manufacturing | 2022 |
| Hairspace Limited | Extraterritorial | 2005 |
| Harley Street Paediatric Group LLP | | 2004 |
| Hartley Dental Limited | Health & social care | 2007 |
| Highfield Dental Practice (Orpington) Limited | Health & social care | 2014 |
| Highgate Dental Practice Limited | Health & social care | 2010 |
| Highsmith Limited | Professional & scientific | 2025 |
| Holi Holdings Limited | Financial services | 2022 |
| Holi Investments Limited | Real estate | 2022 |
| Holland Park Dental Centre Limited | Health & social care | 2019 |
| Hotel Liverpool Limited | Professional & scientific | 2015 |
| Hotel Liverpool Management Limited | Hospitality | 2015 |
| Hudson's Dental Care Limited | Health & social care | 2014 |
| Hulsen-Tsi Holdings Limited | Financial services | 2018 |
| Hyperion Property Management Limited | Real estate | 2015 |
| I DID IT Records Limited | Wholesale & retail | 2022 |
| Implant Services Limited | Health & social care | 2015 |
| Info Energie Ltd | Information & communication | 2019 |
| Inpublishing Ltd | Information & communication | 2003 |
| Interlabz Technologies UK Limited | Extraterritorial | 2010 |
| IZA V Ltd | Wholesale & retail | 2021 |
| JAM23 Property Limited | Real estate | 2020 |
| Janestic Management Ltd | Professional & scientific | 2022 |
| JBL Holdings Limited | Real estate | 2019 |
| Kawasaki Microelectronics America, Inc. | | 2004 |
| Kelvin Ramsey Ltd | Health & social care | 2014 |
| Kensington House Publishing Ltd | Information & communication | 2022 |
| Kensington PT Ltd | Education | 2014 |
| Kingston Hill Dental Limited | Health & social care | 2018 |
| Kingston Hill Holdings Limited | Financial services | 2018 |
| Kingston Hill Properties Limited | Real estate | 2018 |
| Knightsbridge Dental Care Limited | Health & social care | 2015 |
| Kravvas Medical Ltd | Health & social care | 2015 |
| LAM & Korb Holdings Limited | Financial services | 2019 |
| LAM & Korb Properties Limited | Real estate | 2019 |
| LAM Commercial Holdings Limited | Financial services | 2019 |
| LAM Commercial Properties Limited | Real estate | 2019 |
| Laurus Ventures Ltd | Health & social care | 2012 |
| Lavenham Dental Practice Limited | Health & social care | 2017 |
| Lciad Limited | Health & social care | 2008 |
| Leaders in Breast Surgery LLP | | 2024 |
| Leodent LLP | | 2010 |
| Leoprop Limited | Real estate | 2019 |
| Levi Alexandra Systems Ltd | Information & communication | 2012 |
| Lions DEN Interiors Limited | Wholesale & retail | 2019 |
| Lister House Centre for Dental Excellence Limited | Extraterritorial | 2011 |
| Lister House Iced Limited | Health & social care | 2011 |
| Lisù Ltd | Wholesale & retail | 2021 |
| London Britannia Hotel Limited | Hospitality | 1962 |
| London Tara Hotel Limited | Hospitality | 1971 |
| Luipaard UK Ltd | Financial services | 2019 |
| Lunamohegan Ltd | Administrative & support | 2016 |
| M & C (CB) Limited | Professional & scientific | 1999 |
| M & C (CD) Limited | Professional & scientific | 1999 |
| M & C Finance (1) Limited | Financial services | 2009 |
| M & C Management Holdings Limited | Professional & scientific | 2006 |
| M & C NZ Limited | Administrative & support | 2004 |
| M & C Reservations Services Limited | Administrative & support | 2008 |
| M&C Asia Finance (UK) Limited | Financial services | 2013 |
| M&C Asia Holdings (UK) Limited | Professional & scientific | 2013 |
| M&C Hotels Holdings Limited | Financial services | 2002 |
| M&C New York Finance (UK) Limited | Financial services | 2014 |
| M&C Restaurants (London) Limited | Hospitality | 2023 |
| M&C Singapore Finance (UK) Limited | Financial services | 2013 |
| M&C Singapore Holdings (UK) Limited | Professional & scientific | 2013 |
| M&C Sponsorship Limited | Other services | 2018 |
| Madaré Ltd | Wholesale & retail | 2022 |
| Magna West Management Limited | Households | 2016 |
| MAH Developments Limited | Construction | 2018 |
| MAH Investments Limited | Real estate | 2019 |
| Mannai Tech Ltd | Information & communication | 2019 |
| Mareetha Limited | Health & social care | 2014 |
| Mark Westcott Limited | Health & social care | 2010 |
| Martha Investments Limited | Real estate | 2017 |