| THE Dome Operations Limited | Hospitality | 2017 |
| THE DOW Partnership Limited | Information & communication | 2014 |
| THE Driftt Limited | Wholesale & retail | 2025 |
| THE Drip Healthcare Ltd | Health & social care | 2026 |
| THE Early Birds Catering Ltd | Hospitality | 2019 |
| THE ECC and Anaesthesiologist Veterinarian Ltd | Professional & scientific | 2022 |
| THE Edge London Property Management Ltd | Real estate | 2021 |
| THE Edgework Partnership Ltd | Education | 2015 |
| THE Edinburgh Mint Ltd | Extraterritorial | 1988 |
| THE Education Group (Oxford) Ltd | Education | 2017 |
| THE Eggfree Cake Box Uxbridge Limited | Wholesale & retail | 2018 |
| THE Egyptian Medical Society (UK) | Other services | 2007 |
| THE Elegant Club Limited | Financial services | 2023 |
| THE Elstree Hearing Clinic Limited | Health & social care | 2018 |
| THE Emerald Clinic Limited | Health & social care | 2023 |
| THE Event Gurus UK Ltd | Hospitality | 2022 |
| THE Evolving Staffing and Recruiting Limited | Administrative & support | 2026 |
| THE EYE Nursery & Clubs Limited | Education | 2024 |
| THE EYE Nursery Limited | Education | 1991 |
| THE Fairview Group (UK) Ltd | Financial services | 2018 |
| THE Fairy Group Ltd | Hospitality | 2026 |
| THE Falcons Estate (Battersea) Limited | Households | 1992 |
| THE Family Learning Hub Limited | Education | 2017 |
| THE Far-Welted Scribbler Limited | Information & communication | 2023 |
| THE FAT Goose Food Limited | Hospitality | 2022 |
| THE First Adhesives Limited | Information & communication | 2016 |
| THE First Management Group Ltd | Water & waste | 2026 |
| THE Fitter Mind Ltd | Administrative & support | 2020 |
| THE Flanders Tapestry Collection Limited | Manufacturing | 2014 |
| THE Flavour PUB Kitchens Limited | Hospitality | 2025 |
| THE Fleur DE LYS Dorchester Limited | Hospitality | 2023 |
| THE Fluffy Bakery Co Ltd | Manufacturing | 2020 |
| THE Food Supply Ltd | Manufacturing | 2021 |
| THE Furaides Limited | Health & social care | 2016 |
| THE Future IS With US Ltd | Wholesale & retail | 2022 |
| THE Futures Insider Ltd | Education | 2024 |
| THE Gala Film Partners, LLP | | 2003 |
| THE Gallery, Hair Designers Limited | Other services | 2004 |
| THE Garment Rail Company Limited | Administrative & support | 2011 |
| THE Gather Shop Ltd | Wholesale & retail | 2024 |
| THE Generation Hub Global Ltd | Information & communication | 2025 |
| THE Genuine Cake Company Limited | Manufacturing | 2009 |
| THE Girlboss Playground Ltd | Information & communication | 2016 |
| THE GJA Group Limited | Wholesale & retail | 2021 |
| THE Glasshouse Project Limited | Professional & scientific | 2010 |
| THE Glen Residents' Association Limited | Households | 1995 |
| THE Global Fertility Ltd | Health & social care | 2025 |
| THE Global Trade Partnership Ltd | Professional & scientific | 2019 |
| THE Goldspun Foundation | Construction | 2019 |
| THE Good Care Agency Limited | Health & social care | 2024 |
| THE Good Doctor Ltd | Health & social care | 2023 |
| THE Good PEA Limited | Wholesale & retail | 2020 |
| THE Grand Patel's Food Court Private Limited | Wholesale & retail | 2024 |
| THE Grand Portobello Ltd | Hospitality | 2020 |
| THE Grasshopper (Harrow) Ltd | Other services | 2017 |
| THE Great American Fire Truck Bar Limited | Hospitality | 2018 |
| THE Greatest Shumba Entertainment Limited | Hospitality | 2022 |
| THE Green Stores Croxley LLP | | 2018 |
| THE Greyhound Bar & Grill Ltd | Hospitality | 2023 |
| THE Grove (Coulsdon) Limited | Construction | 2019 |
| THE Grove (CR5) Ltd | Construction | 2021 |
| THE Grove Practice Limited | Health & social care | 2002 |
| THE Growth Pundit Limited | Professional & scientific | 2023 |
| THE Hair & Beauty Aesthetic Glam Salon Ltd | Other services | 2026 |
| THE Hampstead Tea & Coffee Co. Limited | Manufacturing | 1995 |
| THE Happy Tourist Limited | Wholesale & retail | 2018 |
| THE Harley Street Medical Concierge Limited | Health & social care | 2016 |
| THE Harmony Collection Ltd | Financial services | 2025 |
| THE Harrow Association Limited | Other services | 2026 |
| THE Harrow Banqueting Suite Ltd | Hospitality | 2026 |
| THE Harrow Gardening Company Ltd | Administrative & support | 2016 |
| THE Health Cultivator Ltd | Public administration | 2024 |
| THE Health Journal Limited | Education | 2025 |
| THE Heart of Ltd | Real estate | 2004 |
| THE Hearth Core Limited | Real estate | 2024 |
| THE Hearts of the Brotherhood Limited | Transport & logistics | 2024 |
| THE Heckerty Company Ltd | Education | 2018 |
| THE Hertfordshire Padel Tree Ltd | Financial services | 2026 |
| THE Hideaway Kensington Limited | Hospitality | 2025 |
| THE High Club Limited | Wholesale & retail | 2016 |
| THE High Stool Limited | Hospitality | 2024 |
| THE Highlands Company Group Ltd | Financial services | 2021 |
| THE Highlands Mayfair Ltd | Wholesale & retail | 2021 |
| THE Highlands Online Ltd | Wholesale & retail | 2021 |
| THE Highlands Retail Services Limited | Wholesale & retail | 2025 |
| THE Hill Collection Limited | Real estate | 2021 |
| THE Hitwalas Ltd | Information & communication | 2026 |
| THE Holocene Group (London) Limited | Real estate | 2025 |
| THE Horniman Cafe Limited | Wholesale & retail | 2002 |
| THE Hostellers Ltd | Wholesale & retail | 2025 |
| THE House of Bollywood Limited | Hospitality | 2025 |
| THE Hub Stores Limited | Wholesale & retail | 2021 |
| THE Hyde (Hendon) Limited | Construction | 2019 |
| THE I.E. Factory Limited | Education | 2012 |
| THE Iconic Cricket Company Limited | Manufacturing | 2024 |
| THE Image Genie Ltd | Professional & scientific | 2024 |
| THE Imperative 4 Change Ltd | Professional & scientific | 2022 |
| THE Indian Breakfast Club Ltd | Manufacturing | 2021 |
| THE Indian Crown Restaurants Limited | Hospitality | 2016 |
| THE Indian Wafer's Company Limited | Wholesale & retail | 2022 |