| Tariq Associates Limited | Other services | 2012 |
| Tarjan Investments Limited | Real estate | 2015 |
| Tax Atelier Ltd | Professional & scientific | 2011 |
| Taylor Bland Management Limited | Professional & scientific | 2002 |
| Teamtech Properties Limited | Extraterritorial | 2019 |
| Tech A5 Limited | Information & communication | 2023 |
| Tecta Property Consultants Limited | Real estate | 2021 |
| Teeth Plus Limited | Health & social care | 2017 |
| Tela Holdings Ltd | Financial services | 2026 |
| Telefinity Ltd | Information & communication | 2024 |
| Temple Gardens (Gerrards Cross) Management Limited | Households | 2011 |
| Temple Grove Homes Ltd | Construction | 2015 |
| Temple Mill Property Investments Ltd. | Real estate | 2012 |
| Templemead Developments Limited | Real estate | 2025 |
| Templemead Developments One Ltd | Households | 2026 |
| Templemead Developments Three Ltd | Construction | 2026 |
| Templemead Developments Two Ltd | Households | 2026 |
| Templemead Investments One Limited | Households | 2025 |
| Templemead Property Holdings Limited | Households | 2025 |
| Templemead Property Services Ltd | Households | 2025 |
| Templewood Security Systems Limited | Administrative & support | 1990 |
| Tenora 13 Limited | Manufacturing | 2025 |
| Tenzo Limited | Information & communication | 2016 |
| Teovia Ltd. | Professional & scientific | 2009 |
| Tepestede Court Residents Ltd | Administrative & support | 2015 |
| Terrier Ventures Ltd | Real estate | 2023 |
| Testsme Limited | Information & communication | 2016 |
| Teuta Sula Design Studio Ltd | Professional & scientific | 2022 |
| TFE Electrical Contractor Ltd | Construction | 2022 |
| TG Digital Consulting Ltd | Information & communication | 2026 |
| TGA Digital Ltd | Information & communication | 2017 |
| TGC Manufacturing Ltd | Manufacturing | 2020 |
| Thachil's ENT Care Ltd | Health & social care | 2022 |
| Thai Lotus Sanctuary Ltd | Other services | 2023 |
| Thaler Contracts (Fire Solutions) Ltd | Construction | 2020 |
| Thaler Contracts FS Ltd | Construction | 2023 |
| Thames BPO Ltd | Information & communication | 2023 |
| Thames Valley Dwellings Limited | Real estate | 2016 |
| Thames Valley Imaging Limited | Health & social care | 2010 |
| Thames Valley Oils Ltd | Water & waste | 2002 |
| Thames Valley Property Limited | Real estate | 2020 |
| Thames Valley Sheepskin Company Limited | Wholesale & retail | 1993 |
| Thames Valley Tyres Services Limited | Other services | 2016 |
| Thamil Limited | Wholesale & retail | 2025 |
| THE Antiques and Candle Company Ltd | Wholesale & retail | 2025 |
| THE Authority GAP Consultancy Ltd | Professional & scientific | 2024 |
| THE Barn Partnership Consultants Limited | Professional & scientific | 1999 |
| THE Bathroom Centre (Gerrards Cross) Limited | Transport & logistics | 2007 |
| THE Beeches (Longton) Limited | Health & social care | 2011 |
| THE Beeches Eco Cafe Ltd | Hospitality | 2019 |
| THE Bodhi Tree Spa Ltd | Other services | 2018 |
| THE Bone Doctor Limited | Health & social care | 2022 |
| THE Box Seat International Ltd | Manufacturing | 2013 |
| THE Chalfont Bookkeeping Service Limited | Professional & scientific | 2019 |
| THE Chalfonts Community College | Education | 2011 |
| THE Chin Family Investment Company | Other services | 2016 |
| THE Collab GX Ltd | Wholesale & retail | 2024 |
| THE Collective Club Ltd | Arts & recreation | 2025 |
| THE Complete Physio Clinic Ltd | Health & social care | 2017 |
| THE Coronation Collection Limited | Hospitality | 2026 |
| THE Crafty Goat Ltd | Hospitality | 2023 |
| THE Drawing Room (London) Ltd | Professional & scientific | 2007 |
| THE Financial Retirement Coach Ltd | Professional & scientific | 2023 |
| THE Fine Stitch Co. Ltd | Wholesale & retail | 2023 |
| THE Fit House Ltd | Arts & recreation | 2018 |
| THE Fit House Wellness Limited | Other services | 2020 |
| THE Fithouse Consultancy Limited | Arts & recreation | 2019 |
| THE Football League Store Limited | Wholesale & retail | 2022 |
| THE Gerrards Cross Church of England School | Education | 2011 |
| THE Golborne Collection Ltd | Administrative & support | 2021 |
| THE Grey Matters (Education) Limited | Information & communication | 2003 |
| THE Griffin Amersham Limited | Hospitality | 2021 |
| THE Grip Company (UK) Ltd | Information & communication | 2012 |
| THE Grove Flats Ltd | Real estate | 2025 |
| THE Guesthouse Collective Ltd | Hospitality | 2026 |
| THE Hair Club Esher Limited | Other services | 2013 |
| THE Hansford Foundation Limited | Administrative & support | 2025 |
| THE Health Pantry Limited | Health & social care | 2015 |
| THE Hearthstone Group Limited | Financial services | 2021 |
| THE Hormone Consultancy Ltd | Health & social care | 2026 |
| THE Interesting Management Company Ltd | Other services | 2013 |
| THE Kindness Club CIC | Administrative & support | 2024 |
| THE Law Office Group ( UK ) Ltd | Extraterritorial | 2022 |
| THE Learning Break Ltd | Education | 2018 |
| THE London & Westminster Property Company Limited | Construction | 1901 |
| THE London Shoulder Limited | Health & social care | 2020 |
| THE Madeira Coffee Shop & Restaurant Ltd | Hospitality | 2013 |
| THE Marie Duffy Foundation | Arts & recreation | 2011 |
| THE Medfellas Ltd | Education | 2025 |
| THE Minster Fellowship | Other services | 2010 |
| THE Move Room GX Ltd | Education | 2025 |
| THE MUM & Baby Doctor Limited | Health & social care | 2022 |
| THE Occasional Table Limited | Hospitality | 2014 |
| THE Old Bath House Limited | Wholesale & retail | 2002 |
| THE Old Court House Limited | Real estate | 2022 |
| THE Orientation Partnership Limited | Professional & scientific | 1997 |
| THE Parker Partnership LLP | | 2015 |
| THE Polpo Chelsea Trading Company Ltd | Hospitality | 2020 |
| THE Polpo Soho Trading Company Limited | Hospitality | 2020 |
| THE Pretty Witty Company Ltd | Arts & recreation | 2018 |