| Tesla Nomad Limited | Information & communication | 2021 |
| Tessa Alliance Ltd | Financial services | 2022 |
| Test of Habesha Ltd | Hospitality | 2024 |
| TGT UK Holdings Ltd | Real estate | 2021 |
| TGV Drywall Ltd | Construction | 2018 |
| Thai Healing Massage Ltd | Other services | 2025 |
| Thai Kitchen Chorleywood Ltd | Hospitality | 2023 |
| Thai ORA Limited | Wholesale & retail | 2023 |
| Thakur Construction Ltd | Construction | 2024 |
| Thakur-Chabert Investment Ltd | Real estate | 2023 |
| Thakur-Chabert Limited | Professional & scientific | 2016 |
| Thakur-Chabert Office Ltd | Professional & scientific | 2020 |
| Thakur-Chabert Property Limited | Real estate | 2022 |
| Thames Project Services Ltd | Professional & scientific | 2025 |
| Thanosa Ltd | Professional & scientific | 2021 |
| Thatcham Wine and Vape Limited | Wholesale & retail | 2025 |
| Thbc Management Limited | Real estate | 2023 |
| THE 4 Pyramids Contractors Ltd | Construction | 2025 |
| THE 5TH Dimension Ltd. | Other services | 1995 |
| THE Aces-Afs Ltd | Financial services | 2016 |
| THE Alders RTM Company Limited | Households | 2014 |
| THE Asian Curry Spice Limited | Hospitality | 2024 |
| THE Asian PAN Limited | Hospitality | 2022 |
| THE Authority Accounting Limited | Professional & scientific | 2025 |
| THE Avenue Care Home Limited | Other services | 2009 |
| THE Baking Alchymist Limited | Professional & scientific | 2018 |
| THE Bath House Developments Limited | Construction | 2025 |
| THE Beeches Residents Company Limited | Households | 1994 |
| THE Blue Savannah Group Ltd | Administrative & support | 2025 |
| THE Bluelight Construction Ltd | Construction | 2025 |
| THE Boxer Rebellion UK LLP | | 2007 |
| THE Brit Management Consultancy Limited | Information & communication | 2016 |
| THE Brue Group Ltd | Real estate | 2023 |
| THE Cabelo Addiction Ltd | Other services | 2022 |
| THE Card Shop Ickenham Ltd | Wholesale & retail | 2024 |
| THE Cheeky Indian Limited | Other services | 2014 |
| THE Chimes Merchants Association Uxbridge Limited | Administrative & support | 2000 |
| THE Chiswick Hair Clinic Ltd | Administrative & support | 2016 |
| THE Clear Academy Limited | Education | 2025 |
| THE Cloisters Dunstable RTM Company Limited | Households | 2006 |
| THE Coaching Chapters Limited | Professional & scientific | 2024 |
| THE Community Care Company UK Limited | Professional & scientific | 1993 |
| THE Cottage GX Ltd | Hospitality | 2024 |
| THE Courtyard Theatre Limited | Arts & recreation | 2005 |
| THE Crown & Treaty Ltd | Hospitality | 2026 |
| THE Crown Church | Other services | 2002 |
| THE Culinary House Ltd | Wholesale & retail | 2025 |
| THE Culvert Conservation Association Limited | Households | 1993 |
| THE Curious Traveller Ltd | Administrative & support | 2024 |
| THE Curve, W12, Management Company Limited | Households | 2026 |
| THE DE Lacey Montessori School Limited | Education | 2008 |
| THE Dell Group UK Limited | Professional & scientific | 2024 |
| THE Directory Guys Limited | Administrative & support | 2012 |
| THE Dreamer Shop Ltd | Wholesale & retail | 2019 |
| THE Eden Academy | Education | 2012 |
| THE Empire Building Merchants Ltd | Wholesale & retail | 2025 |
| THE Empire Tours and Travels Limited | Transport & logistics | 2025 |
| THE Firs Freehold Limited | Households | 1996 |
| THE Fitters Team Ltd | Construction | 2014 |
| THE Funding Navigator Ltd | Professional & scientific | 2024 |
| THE Gables (Watford) RTM Company Limited | Households | 2023 |
| THE Gateway Management (Salford) Company Limited | Real estate | 2005 |
| THE General Elliot Limited | Hospitality | 2008 |
| THE Good Change Consultancy Limited | Professional & scientific | 2023 |
| THE Good Garden Company Limited | Administrative & support | 2015 |
| THE Grab Father Ltd | Transport & logistics | 2025 |
| THE Great English Way CIC | Hospitality | 2026 |
| THE Groundwork South Trust Limited | Hospitality | 1986 |
| THE Growing Tree Ltd | Administrative & support | 1998 |
| THE Guli Rose Ltd | Manufacturing | 2025 |
| THE GUT Healer Ltd | Health & social care | 2025 |
| THE Haulier Company Ltd | Transport & logistics | 2020 |
| THE Health and Wellness Collective Limited | Professional & scientific | 2024 |
| THE Health Lodge Limited | Health & social care | 2003 |
| THE Hermitage ST Dunstans Road (Freehold) Limited | Real estate | 2009 |
| THE Highlands Forwarders Ltd | Transport & logistics | 2010 |
| THE Hillingdon Care Company Limited | Health & social care | 2025 |
| THE Hillingdon Day Centre Limited | Health & social care | 2020 |
| THE HO Tring Ltd | Real estate | 2018 |
| THE Holding Yard Ltd | Water & waste | 2019 |
| THE Hospital Location Limited | Information & communication | 2014 |
| THE House Emporium Limited | Other services | 2017 |
| THE House of Wardrobes Ltd | Construction | 2017 |
| THE Igloo Collection Ltd | Hospitality | 2025 |
| THE Image Club Hair Studio Limited | Other services | 2022 |
| THE Innovate Day Centre C.I.C. | Other services | 2018 |
| THE Innovation Forge Ltd | Professional & scientific | 2024 |
| THE Jewellery Store London Ltd | Wholesale & retail | 2013 |
| THE K.A Harefield Ltd | Hospitality | 2021 |
| THE Kelham Management Company Limited | Real estate | 1993 |
| THE Kingsborough Centre | Education | 2005 |
| THE Kingsmen Movers Ltd | Transport & logistics | 2023 |
| THE Larches (Oxford) Management Company Limited | Households | 1990 |
| THE Lawlor Group Ltd | Real estate | 2022 |
| THE Linens House Limited | Wholesale & retail | 2017 |
| THE Little Details 3D Ltd | Wholesale & retail | 2025 |
| THE Living OFF Grid Cabin Company Ltd | Hospitality | 2025 |
| THE Local Business Network Limited | Administrative & support | 2023 |
| THE Loft Uxbridge Ltd | Hospitality | 2024 |
| THE Lombrand Ltd | Health & social care | 2007 |