| THE GTM Search Group Ltd | Administrative & support | 2024 |
| THE Guild of Dog Trainers | Other services | 2010 |
| THE Hair and Beauty Spot Limited | Other services | 2023 |
| THE Healthy Path Limited | Wholesale & retail | 2000 |
| THE Heights Management Company (Eastbury Road) Limited | Administrative & support | 2014 |
| THE Herts Bowling Club | Arts & recreation | 1932 |
| THE High Performance Group Limited | Professional & scientific | 2023 |
| THE Hollies Management Company (Watford) Limited | Hospitality | 1989 |
| THE HOP & Vine Bar Limited | Hospitality | 2016 |
| THE Hope Appeal Limited | Other services | 2021 |
| THE Horizon Clinic Ltd | Health & social care | 2022 |
| THE Huan Company Ltd | Wholesale & retail | 2024 |
| THE Human Hub (Therapy) Ltd | Health & social care | 2022 |
| THE Hybrid Specialists Limited | Wholesale & retail | 2020 |
| THE Imaginary Pizza Company Ltd | Hospitality | 2022 |
| THE Invisbile Mindset Ltd | Professional & scientific | 2026 |
| THE John Apthorp Charity | Health & social care | 2003 |
| THE Keeperhealthcare Services Limited | Health & social care | 2021 |
| THE Knights of UK Empire Ltd | Education | 2024 |
| THE Kollective Development Ltd | Information & communication | 2022 |
| THE Kriya Group Ltd | Health & social care | 2023 |
| THE Langley Butcher Limited | Manufacturing | 2002 |
| THE Laser and Skin Group Ltd | Health & social care | 2019 |
| THE Last Moon Film Ltd | Information & communication | 2018 |
| THE Lawson Practice Limited | Financial services | 2013 |
| THE Lawton Trust Limited | Education | 2009 |
| THE Leaders of Worship and Preachers Trust | Other services | 2004 |
| THE Library of Requirements CIC | Administrative & support | 2025 |
| THE Little Sparkles Preschool Limited | Education | 2014 |
| THE Load of HAY Limited | Hospitality | 2013 |
| THE Locker Room Ltd | Wholesale & retail | 2025 |
| THE Lodge at Heathdene Manor RTM Company Ltd | Real estate | 2025 |
| THE Loft Edit Ltd | Construction | 2026 |
| THE London Corset Company Ltd | Wholesale & retail | 2018 |
| THE London Lifestyle Ltd | Professional & scientific | 2021 |
| THE London LOG Store Limited | Agriculture & fishing | 2023 |
| THE London Olive Shed Limited | Construction | 2024 |
| THE London Podiatry Group Limited | Health & social care | 2021 |
| THE London Switchgear Company Limited | Extraterritorial | 2012 |
| THE London Therapy Centre Ltd | Health & social care | 2020 |
| THE London Wardrobe Company Ltd | Manufacturing | 2020 |
| THE Lonsdale Group Ltd | Real estate | 2024 |
| THE Lotus Trust | Education | 2005 |
| THE Lush Looks Lady Ltd | Other services | 2023 |
| THE LUX Collective UK Ltd | Hospitality | 2001 |
| THE M Horizon (UK) Limited | Professional & scientific | 2012 |
| THE MAN That CAN Fencing Ltd | Construction | 2024 |
| THE Mane Room Ltd | Other services | 2022 |
| THE Manor House (Northwood) Management Company Limited | Households | 1999 |
| THE Manor House Freehold Limited | Real estate | 2000 |
| THE Maples Residents Company Limited | Households | 1994 |
| THE Maratha Investments Ltd | Real estate | 2020 |
| THE Marketing Shop Limited | Professional & scientific | 1993 |
| THE Marketline Ltd | Professional & scientific | 2015 |
| THE Marriage Bureau Limited | Information & communication | 2002 |
| THE Marylebone Exchange Management Company Limited | Real estate | 2005 |
| THE Marylebone Village Estates Partnership | | 2004 |
| THE Middleman Limited | Professional & scientific | 2012 |
| THE Millsmatch Ltd | Arts & recreation | 2025 |
| THE Moorings (Bushey) Management Company Limited | Households | 2002 |
| THE Mortgage & Protection Design Company Limited | Financial services | 2020 |
| THE Movers Trading Club Ltd | Transport & logistics | 2017 |
| THE Nascot Consortium Ltd | Wholesale & retail | 2005 |
| THE Nest Rehabilitation Home Limited | Health & social care | 2019 |
| THE Neurological Alliance | Health & social care | 1994 |
| THE New Tangiers Media Ltd | Arts & recreation | 2025 |
| THE New View Restaurant Limited | Hospitality | 2026 |
| THE Nutty Grill Ltd. | Hospitality | 2015 |
| THE Oaken Studio Ltd | Manufacturing | 2026 |
| THE Oakleigh Park North Management Company Limited | Real estate | 1989 |
| THE Offsite Group Limited | Real estate | 2018 |
| THE Oreilly Group Ltd | Construction | 2019 |
| THE Organic Garden Company Ltd | Administrative & support | 2011 |
| THE Padel Bay Inc Ltd | Arts & recreation | 2025 |
| THE Padel House Club Limited | Arts & recreation | 2024 |
| THE Palace Theatre Watford Productions Limited | Arts & recreation | 2014 |
| THE Paradox Foundation | Administrative & support | 2005 |
| THE Party Souq Ltd | Wholesale & retail | 2023 |
| THE Peachell Group Limited | Professional & scientific | 1991 |
| THE Peninsular House Partnership | | 2002 |
| THE Persian Infusion Ltd | Manufacturing | 2026 |
| THE Physio Doctors Limited | Health & social care | 2016 |
| THE Plan Education Ltd | Administrative & support | 2020 |
| THE Priory at Shanklin Management Company Limited | Households | 2009 |
| THE Productivity Academy Limited | Professional & scientific | 2011 |
| THE Prop City Designs Ltd | Information & communication | 2025 |
| THE Proverbial Door Ltd | Professional & scientific | 2019 |
| THE R One International Ltd | Real estate | 2023 |
| THE Rainbow Bush Limited | Manufacturing | 2025 |
| THE Redwood Cafe Limited | Hospitality | 2015 |
| THE Regency Partnership Limited | Professional & scientific | 2005 |
| THE Renaissance (Hadley Wood) Management Company Limited | Administrative & support | 2015 |
| THE Residence (Pinner) Management Limited | Households | 2007 |
| THE Retail Hub Ltd | Administrative & support | 2016 |
| THE Robin Tutty Consultancy Ltd | Professional & scientific | 2010 |
| THE Rolling KEG Ltd | Hospitality | 2018 |
| THE Rowan Glade Limited | Professional & scientific | 2016 |
| THE Science Archive Limited | Information & communication | 1996 |
| THE Seven Pillars Care Group Ltd | Health & social care | 2025 |
| THE Skillwise Global Ltd | Information & communication | 2024 |