| THE Golf Training Academy Ltd | Education | 2024 |
| THE Hare Collective Ltd | Other services | 2025 |
| THE Health NAV Ltd | Professional & scientific | 2025 |
| THE Highlands Group Limited | Financial services | 2016 |
| THE Kind Rooms Ltd | Professional & scientific | 2020 |
| THE Kingston Stop Smoking Centre Limited | Health & social care | 2002 |
| THE Mayfair Skin Clinic Limited | Health & social care | 2013 |
| THE Neem Tree Esher Ltd | Health & social care | 2017 |
| THE Neem Tree Team Limited | Administrative & support | 2015 |
| THE Neem Tree Wandsworth Limited | Health & social care | 2017 |
| THE Paddocks (Esher) Management Company Limited | Households | 2010 |
| THE Perioperative Medicine Company Limited | Health & social care | 2009 |
| THE Poulvers Ltd | Other services | 2020 |
| THE Priest Hill Land Company Limited | Real estate | 2025 |
| THE Riverholme Company Limited | Households | 2021 |
| THE Sales Technologist Limited | Information & communication | 2024 |
| THE School of Quantumself Psychology Ltd | Education | 2026 |
| THE Society of Yoga Practitioners Ltd | Other services | 2020 |
| THE Trainers Ltd | Arts & recreation | 2022 |
| THE Vault Hair and Spa Limited | Other services | 2012 |
| THE Way of Play CIC | Education | 2025 |
| THE Whiting Academy Limited | Arts & recreation | 2020 |
| Theapura ACM Ltd | Professional & scientific | 2025 |
| Theethan Trading Services Limited | Real estate | 2007 |
| Thelema Enterprises Limited | Information & communication | 2026 |
| Therappi Ltd | Information & communication | 2025 |
| Think Energy International Ltd | Mining & quarrying | 2020 |
| Thirty Seven More Lane Residents M.C. Limited | Real estate | 2011 |
| Thousand Cuts Ltd | Professional & scientific | 2015 |
| THRIVE4LIFE Limited | Health & social care | 1999 |
| Thunderball Limited | Professional & scientific | 2008 |
| Thurlestone Court Management Limited | Households | 2007 |
| Tickled Pink Creative Development Limited | Arts & recreation | 2021 |
| Tickled Pink Entertainment Limited | Arts & recreation | 2021 |
| Tickled Pink Media Limited | Arts & recreation | 2021 |
| Tickled Pink Publishing Limited | Arts & recreation | 2022 |
| Tickled Punk Limited | Arts & recreation | 2024 |
| Tidal Bay Adventure Golf Limited | Arts & recreation | 2017 |
| Tiger Global Technologies Limited | Administrative & support | 2020 |
| Tiger Legal Services Limited | Professional & scientific | 2019 |
| Tile Studio Esher Ltd | Wholesale & retail | 2019 |
| Tilka Global Limited | Wholesale & retail | 2025 |
| Tilt Natural Resource Capital Limited | Professional & scientific | 2016 |
| TIM Martin Colour Limited | Information & communication | 2018 |
| Time 2 London Ltd | Wholesale & retail | 2013 |
| Time Watch Repair Esher Limited | Other services | 2024 |
| Timothy Chimes Associates Limited | Professional & scientific | 1991 |
| Tiya & Maya Developments Ltd | Real estate | 2015 |
| Tjgx Ltd | Mining & quarrying | 2015 |
| Tkjl Limited | Administrative & support | 2022 |
| TM Bath Ltd | Construction | 2023 |
| TM Build Ltd | Construction | 2015 |
| TM Rent Ltd | Real estate | 2023 |
| Tmlcruk Limited | Professional & scientific | 2025 |
| TNP Consulting Limited | Professional & scientific | 2014 |
| Toddpod Limited | Wholesale & retail | 2023 |
| Together Plus Holdings Ltd | Financial services | 2026 |
| Together Plus Limited | Wholesale & retail | 2008 |
| TOM and Duncan Ltd | Wholesale & retail | 2022 |
| Tom's Brewery Limited | Wholesale & retail | 2025 |
| Tomology IT Ltd | Information & communication | 2022 |
| Toms Valley Traders Limited | Administrative & support | 2026 |
| Tony GEE and Partners LLP | | 2005 |
| Topaz One Ltd | Professional & scientific | 2018 |
| Toroce Investments Ltd | Financial services | 2016 |
| Toroce Properties Ltd | Real estate | 2018 |
| Toroco Advisory Limited | Professional & scientific | 2025 |
| Total Project Integration Limited | Administrative & support | 1984 |
| Totallyun Ltd | Real estate | 2016 |
| Touchtennis Pro Limited | Administrative & support | 2005 |
| Touchwood Consultants Limited | Professional & scientific | 2017 |
| TP Royles Ltd | Transport & logistics | 2023 |
| Track 88 (Management) Ltd | Professional & scientific | 2020 |
| Trade Active Ltd | Real estate | 2021 |
| Trans-Africa Energy Limited | Financial services | 2020 |
| Transfer ME Ltd | Transport & logistics | 2022 |
| Trash Panda Consulting Ltd | Administrative & support | 2022 |
| Travel Minds Global Limited | Professional & scientific | 2012 |
| Travel Surrey Ltd | Administrative & support | 2019 |
| TRH Winchester Limited | Hospitality | 2016 |
| Trhpc Limited | Hospitality | 2026 |
| Trigger Racing Ltd | Arts & recreation | 2020 |
| Trinity Investments (Guildford) Limited | Real estate | 2019 |
| Trowlock Private Clients LLP | | 2017 |
| Trowlock Property Limited | Households | 2023 |
| Trowlock Strategic Planning LLP | | 2011 |
| Trowlock Wealth Management LLP | | 2013 |
| TRP Build Ltd | Construction | 2023 |
| Truesight Ventures Limited | Financial services | 2018 |
| TS Vintage Ltd | Wholesale & retail | 2015 |
| TSR (TIM Stranks Recruitment) Ltd | Administrative & support | 2022 |
| TTN Enterprise Ltd | Wholesale & retail | 2021 |
| Tubalcain Investments Limited | Professional & scientific | 2006 |
| TUK Talent Ltd | Professional & scientific | 2025 |
| Turner & Foye Surrey Ltd | Manufacturing | 2017 |
| Turnkey Tenancy Services Ltd | Administrative & support | 2026 |
| Turquoise Media Limited | Professional & scientific | 2008 |
| Tuzon Ltd | Real estate | 2021 |
| Twenty One Fifty Limited | Arts & recreation | 2001 |
| TWENTYONE12 Limited | Real estate | 2022 |