| Loh-Gronager Partners Limited | Financial services | 2021 |
| London Search Associates Limited | Administrative & support | 2017 |
| London Trade Desk Ltd | Wholesale & retail | 2021 |
| Longcross Land Ltd | Extraterritorial | 2021 |
| Longcross Technology Limited | Real estate | 2018 |
| LRO Limited Partnership | | 2004 |
| LS Skin Academy Limited | Real estate | 2021 |
| Lukarah Ltd | Professional & scientific | 2024 |
| Luke Devally Ltd | Professional & scientific | 2026 |
| Luke Speaks Ltd | Education | 2024 |
| Lumina Business Consulting Limited | Wholesale & retail | 2022 |
| MAC Asset Management Limited | Financial services | 2016 |
| Macleans of London Ltd | Wholesale & retail | 2020 |
| Mailmast Limited | Extraterritorial | 2005 |
| Mayfair & Co. Capital UK Limited | Professional & scientific | 2023 |
| Mayfair Bricks Ltd | Real estate | 2018 |
| Mayfair Bridging Limited | Financial services | 2026 |
| Mayfair Broadcasting Organisation UK Limited | Other services | 2014 |
| Mayfair Education Ltd | Real estate | 2023 |
| Mayfair GI Limited | Financial services | 2025 |
| Mayfair Global Solutions Ltd | Professional & scientific | 2019 |
| Mayfair International Centre MI UK Limited | Other services | 2015 |
| Mayfn UK Limited | Professional & scientific | 2010 |
| Mcmullan Group Limited | Financial services | 2005 |
| Meadowbank International Ltd | Real estate | 2008 |
| Medtate Limited | Health & social care | 2011 |
| Mensaureus Limited | Information & communication | 2026 |
| Merlin Capital Investments LLP | | 2007 |
| Metallum Partners Limited | Administrative & support | 2012 |
| Modular Space Solutions Ltd | Wholesale & retail | 2014 |
| Moonraker Development Services Ltd | Administrative & support | 2010 |
| Mountglow Limited | Administrative & support | 2010 |
| My Health Buddy Limited | Information & communication | 2026 |
| Myadvsr Limited | Financial services | 2023 |
| Narmis Group Ltd | Financial services | 2026 |
| Navant Group & Co. Limited | Wholesale & retail | 2025 |
| Nene Enterprises Ltd | Wholesale & retail | 2020 |
| Neurobay Ltd | Financial services | 2023 |
| Neuropath Services Ltd | Health & social care | 2026 |
| New Genesis Limited | Administrative & support | 2024 |
| Nine SIX One Ltd | Professional & scientific | 2015 |
| Nkrb Limited | Professional & scientific | 2025 |
| Nook Build Ltd | Construction | 2025 |
| Noor Capital UK Limited | Financial services | 2014 |
| NOW YOU Know Life Ltd | Information & communication | 2025 |
| NSP DO Brasil Ltd | Professional & scientific | 2012 |
| Nuvorox Limited | Information & communication | 2025 |
| Odyssean Capital LLP | | 2017 |
| OJS Management Consultant Ltd | Professional & scientific | 2020 |
| Olympus Management (London) Limited | Real estate | 2022 |
| Ondaye Group Limited | Wholesale & retail | 2025 |
| Operational Data Insights and Navigation Limited | Professional & scientific | 2025 |
| Opulent Trading Limited | Administrative & support | 2007 |
| Orbit Facilities Management Limited | Real estate | 2004 |
| Orbit Property Management Birmingham Limited | Real estate | 2006 |
| Orbit Property Management Limited | Real estate | 2004 |
| Organicuk Ltd | Wholesale & retail | 2015 |
| Orion Aero Limited | Manufacturing | 2025 |
| Orion Capital Partners Ltd | Professional & scientific | 2014 |
| P3 Group Holding Ltd | Financial services | 2022 |
| P3 Wealth Ltd | Financial services | 2015 |
| Panache Atelier London Ltd | Wholesale & retail | 2006 |
| Panache Corporation Ltd | Wholesale & retail | 2009 |
| Panache Engineering & Construction Ltd | Construction | 2015 |
| Panache Fire Protection Ltd | Wholesale & retail | 2013 |
| Patient Wolf Limited | Manufacturing | 2017 |
| Paypro Europe Limited | Information & communication | 2008 |
| Pebble Dash Limited | Real estate | 2021 |
| Phoenix Major Limited | Other services | 2021 |
| Polar Build London Ltd | Construction | 2023 |
| Polish Food Industries Ltd | Manufacturing | 2025 |
| Power Prestige Cars Limited | Wholesale & retail | 2014 |
| Premium Canary Ltd | Administrative & support | 2025 |
| Presley Hart Capital Limited | Financial services | 2026 |
| Privat 3 Money Ltd | Information & communication | 2018 |
| Pro Install M & E Limited | Construction | 2020 |
| Proinstall AV Limited | Construction | 2013 |
| Prop Investments Limited | Real estate | 2025 |
| Property Brief Ltd. | Professional & scientific | 2006 |
| Property Finders Real Estate Limited | Real estate | 2022 |
| RAD Capital Group Limited | Professional & scientific | 2023 |
| Rare Experiences Ltd | Information & communication | 2026 |
| RB Research and Advisory Limited | Professional & scientific | 2026 |
| Reemy Limited | Real estate | 2022 |
| Regis Group PLC | Real estate | 1982 |
| Revenue Growth Partners UK Limited | Professional & scientific | 2026 |
| RH3 Holdings Ltd | Financial services | 2023 |
| Rigby Capital Investments Ltd | Administrative & support | 2013 |
| RX Partners Ltd | Professional & scientific | 2017 |
| RX Private Office Ltd | Professional & scientific | 2022 |
| Safesoft LP | | 2022 |
| Safety Audit Review Partnership | Professional & scientific | 2024 |
| Saggers Stays Ltd | Real estate | 2026 |
| Sakinah Guidance Services Ltd | Other services | 2025 |
| Sandstone Advisory Int'L Ltd | Professional & scientific | 2026 |
| Sarsur Capital UK Limited | Professional & scientific | 2017 |
| Scrumline Sports Ltd | Arts & recreation | 2025 |
| Sdlt Compass Limited | Information & communication | 2021 |
| Selectbay Ltd | Wholesale & retail | 2026 |
| Selfmade Freedom Ltd | Financial services | 2022 |