| THE Only Place (UK) Ltd | Hospitality | 2014 |
| THE Pacemakers Ltd | Professional & scientific | 2014 |
| THE Park Carshalton Management Limited | Households | 2013 |
| THE Personal Agent Ltd | Real estate | 2002 |
| THE Personal GP Ltd | Health & social care | 2023 |
| THE Phamle & Co Ltd | Other services | 2024 |
| THE Pharm Consultancy Ltd. | Administrative & support | 2015 |
| THE Pines (Freehold) Limited | Real estate | 1999 |
| THE Pinnacle Assets Management Limited | Real estate | 2020 |
| THE Planet Marzipan Ltd | Information & communication | 2012 |
| THE Plus Team Training Group Ltd | Administrative & support | 2014 |
| THE Point Company Americas Ltd | Information & communication | 2020 |
| THE Poitin Still Ltd | Hospitality | 2022 |
| THE Poplars (Thornaby) Limited | Health & social care | 2014 |
| THE Practise Club Limited | Other services | 2022 |
| THE Property Players Ltd | Construction | 2020 |
| THE Pulse Foundation | Arts & recreation | 2026 |
| THE Pump House Renewables Ltd | Construction | 2020 |
| THE Pure Juice Company Ltd | Wholesale & retail | 2007 |
| THE Quantity Surveying Partnership Limited | Professional & scientific | 2003 |
| THE Regal Collection Ltd | Real estate | 2024 |
| THE Renaissance PUB Company Limited | Administrative & support | 2017 |
| THE Retreat Chiswick Limited | Other services | 2013 |
| THE Ridings Residents Association (Ewell) Limited | Households | 1989 |
| THE RIG Group Ltd | Arts & recreation | 2022 |
| THE Right Way Roofing & Property Maintenance Ltd | Construction | 2026 |
| THE Roseberys Management Limited | Households | 2006 |
| THE Royal Medical Foundation | Health & social care | 2000 |
| THE Rubbish Mates Ltd | Water & waste | 2021 |
| THE RUG Office Limited | Wholesale & retail | 2026 |
| THE Smart Loft Company Limited | Construction | 2009 |
| THE Social Value Collective Limited | Professional & scientific | 2025 |
| THE Specialist Blind Co. Ltd | Wholesale & retail | 2000 |
| THE Specialist Crime Consulting Group (Sccg) Ltd | Professional & scientific | 2021 |
| THE Star at Sidcup Place Limited | Hospitality | 2024 |
| THE Style Closet Boutique Limited | Wholesale & retail | 2023 |
| THE Sunnybank Trust Ltd | Health & social care | 2011 |
| THE Surbitonian Hospitality Group Limited | Wholesale & retail | 2022 |
| THE Syndicate Kitchen Limited | Hospitality | 2018 |
| THE Talent People Limited | Administrative & support | 2025 |
| THE Thought Partnership Ltd | Professional & scientific | 2023 |
| THE Tomorrow Partnership Ltd | Professional & scientific | 2023 |
| THE Travel Professionals Limited | Administrative & support | 1989 |
| THE Tree House (Arboriculture) Limited | Administrative & support | 2009 |
| THE Trustees of the Carmel Group Limited | Professional & scientific | 2019 |
| THE Tudors Management (Ewell) Limited | Households | 1995 |
| THE Turvey Corporation PLC | Real estate | 1989 |
| THE Ulez Car Company Limited | Wholesale & retail | 2020 |
| THE Ulez Motor Company Limited | Wholesale & retail | 2020 |
| THE Ultrasound Site Ltd | Education | 2015 |
| THE Vale Financial Limited | Administrative & support | 2019 |
| THE Value Space Limited | Professional & scientific | 2007 |
| THE View Residential Ltd | Real estate | 2020 |
| THE Vine Uxbridge Limited | Hospitality | 2025 |
| THE Vines (Horsebridge) Estate Management Company Limited | Households | 2007 |
| THE Vintage Fridge Company Ltd. | Wholesale & retail | 2012 |
| THE Visitor Experience Company Limited | Professional & scientific | 2014 |
| THE Wedding Crechers Surrey Ltd | Health & social care | 2023 |
| THE Wellbeing Therapy HUT Ltd | Health & social care | 2021 |
| THE Whole Horse Co Limited | Agriculture & fishing | 2026 |
| THE Wiggle Wood Company Ltd | Arts & recreation | 2022 |
| THE Wildgod Limited | Information & communication | 2024 |
| THE Woman in the Red Dress Productions Limited | Arts & recreation | 2010 |
| THE Wood Shop (Hastings) Limited | Wholesale & retail | 2011 |
| THE Woodlands NO.1 Management Company Limited | Real estate | 2007 |
| THE Wrangle Bandits Ltd | Information & communication | 2015 |
| THE Wright Image Limited | Construction | 2007 |
| THE Yews Management Company Limited | Households | 2012 |
| Thea Botanicals Ltd | Wholesale & retail | 2026 |
| Thecla Digital Ltd | Information & communication | 2025 |
| Thedeliverypeople Ltd | Real estate | 2013 |
| Theo Ampedup Solutions Limited | Construction | 2025 |
| Therapy Dorking Limited | Health & social care | 2017 |
| Therapy Matters Ltd | Health & social care | 2017 |
| Thetis Consulting Limited | Professional & scientific | 2020 |
| THH Dartford Limited | Real estate | 2026 |
| Thilagini Consulting Limited | Professional & scientific | 2025 |
| Thin Guides Limited | Information & communication | 2018 |
| Think DV Consulting Limited | Financial services | 2016 |
| Think IT Big Limited | Professional & scientific | 2016 |
| Think Rigging & Scaffolding Ltd | Construction | 2019 |
| Think Visa Ltd | Administrative & support | 2025 |
| Thinkably Limited | Professional & scientific | 2014 |
| Thinkroom Limited | Professional & scientific | 2018 |
| Third AGE Design Ltd | Professional & scientific | 2020 |
| Thirty Acre Stud Limited | Agriculture & fishing | 2021 |
| Thirty City Road Investments Limited | Real estate | 1962 |
| Thjm Investments Limited | Real estate | 2021 |
| Thornhill Music Limited | Other services | 1985 |
| Thorntons Communications Limited | Information & communication | 2006 |
| Thorntons Voice and Data Limited | Administrative & support | 2016 |
| Thorpe Road SPV Limited | Construction | 2024 |
| THR Events Ltd | Administrative & support | 2024 |
| Thrace Consulting and Coaching Ltd | Professional & scientific | 2020 |
| Thrasea Research Limited | Professional & scientific | 2026 |
| Threat Detective Ltd | Information & communication | 2010 |
| Three Days Ltd | Construction | 2016 |
| Three Little Birds Pictures Ltd | Information & communication | 2019 |
| Thumsup Ltd | Administrative & support | 2024 |
| Thundersdawn Limited | Information & communication | 2013 |