| THE Village Barbers Shop Ltd | Other services | 2022 |
| THE Village Restaurant Molesey Ltd | Hospitality | 2024 |
| THE Void Transport Ltd | Transport & logistics | 2025 |
| THE Walnut Tree (Bourne END) Ltd | Hospitality | 2013 |
| THE Wardrobe GUY Ltd | Manufacturing | 2023 |
| THE Warren Cafe Limited | Hospitality | 2024 |
| THE Water Treatment Consultancy Limited | Professional & scientific | 2018 |
| THE Wellfluence Company Ltd | Professional & scientific | 2026 |
| THE Westgate School | Education | 2015 |
| THE Whisky Reserve Limited | Wholesale & retail | 2020 |
| THE White House Design Limited | Professional & scientific | 1997 |
| THE Wild West Chicken Ltd | Hospitality | 2024 |
| THE Wrought Iron MAN Ltd | Manufacturing | 2024 |
| THE8SIBLINGS Ltd | Construction | 2025 |
| Thecent Ltd | Information & communication | 2022 |
| Theclaire Limited | Wholesale & retail | 2025 |
| Theem Traders Ltd | Wholesale & retail | 2019 |
| Theexlab Limited | Wholesale & retail | 2026 |
| Theforum Ltd | Information & communication | 2025 |
| Thehaan Ltd | Hospitality | 2026 |
| Theios Nest Ltd | Real estate | 2023 |
| Thekedar Constructions Ltd | Construction | 2016 |
| Thekedar Contractors Ltd | Construction | 2020 |
| Thekhannetwork Ltd. | Real estate | 2025 |
| Thelma Wigs, Hair Products and Fashion Ltd | Other services | 2024 |
| Theo Clean Limited | Administrative & support | 2015 |
| Theo HQ Ltd | Information & communication | 2007 |
| Theonlymediacompany Limited | Professional & scientific | 2020 |
| Thepristinecleaners Ltd | Administrative & support | 2024 |
| Therefore Solutions Ltd | Professional & scientific | 2025 |
| Thermador Installation Limited | Construction | 2026 |
| Thermal Labels Ltd | Wholesale & retail | 2025 |
| Thermamax Ltd | Construction | 2025 |
| Thermohouse UK Ltd | Construction | 2013 |
| Thermotex Engineering Ltd | Manufacturing | 2025 |
| Therocketscollective Ltd | Arts & recreation | 2020 |
| Thetrainerseller Ltd | Wholesale & retail | 2026 |
| Thevegan UK Ltd | Wholesale & retail | 2025 |
| Thiar Ltd | Professional & scientific | 2015 |
| Thind Build & Renovate Ltd | Construction | 2025 |
| Thind Building Solutions Ltd | Construction | 2023 |
| Thind Group Ltd | Professional & scientific | 2021 |
| Thind Heating Services Ltd | Construction | 2022 |
| Thind Ltd | Construction | 2023 |
| Thind Transport Ltd | Construction | 2017 |
| Thinda Land Limited | Real estate | 2007 |
| Think Centre Ltd | Professional & scientific | 2015 |
| Think Driver Training Limited | Education | 2010 |
| Think Entertain Ltd | Manufacturing | 2018 |
| Think IT Resources Limited | Administrative & support | 2022 |
| Think Property Developers Ltd | Real estate | 2024 |
| Think Smart Academy Limited | Education | 2020 |
| Think Smart Academy One Limited | Education | 2020 |
| Thinkempathy Limited | Health & social care | 2018 |
| Thinventory Group Holdings Limited | Professional & scientific | 2015 |
| Thinventory Holdings Limited | Administrative & support | 2000 |
| Thinventory Limited | Transport & logistics | 1999 |
| Third Grosvenor (NO.2) Fund | | 1987 |
| Thirkleby Close Management Limited | Households | 1987 |
| Thirty Minutes Ltd | Wholesale & retail | 2022 |
| Thirtyone Holdings Ltd | Financial services | 2025 |
| This IS NOT Juice Ltd | Hospitality | 2025 |
| Thomas Brenton Limited | Manufacturing | 2024 |
| Thomas Ridley and Son,Limited | Wholesale & retail | 1917 |
| Thornfield Care Limited | Health & social care | 2020 |
| Thorpe Hesley Takeaway Ltd | Hospitality | 2026 |
| Threadkind Ltd | Manufacturing | 2025 |
| Threadmastersuk Ltd | Wholesale & retail | 2024 |
| Thredz Ltd | Hospitality | 2024 |
| Three Brothers Ventures Ltd | Wholesale & retail | 2025 |
| Three Claps Studio Ltd | Information & communication | 2020 |
| Three Leaves Business Services Ltd | Professional & scientific | 2016 |
| Three Leaves Ltd | Professional & scientific | 2013 |
| Three M'S Harwich Limited | Construction | 2006 |
| Three Stars Ltd | Wholesale & retail | 2020 |
| Three Tuns Cafe Ltd | Hospitality | 2024 |
| Three Ways Logistics Ltd | Transport & logistics | 2025 |
| Threebulls Limited | Information & communication | 2026 |
| Threesixty Sales Limited | Wholesale & retail | 2023 |
| Threeway Projects Limited | Construction | 2015 |
| THRIVE4U Healthcare Solutions Ltd | Administrative & support | 2020 |
| Throttle Range Ltd | Wholesale & retail | 2019 |
| Thryvara Ltd | Professional & scientific | 2025 |
| THT Group UK Ltd | Wholesale & retail | 2023 |
| Thumbs UP Builders Ltd | Construction | 2018 |
| Thunderbird Scenery Limited | Administrative & support | 2007 |
| Thwackit Limited | Extraterritorial | 2023 |
| Thyme & Time Again Ltd | Hospitality | 2022 |
| TI Wholesale Limited | Construction | 2018 |
| Tiagh Consultancy Ltd | Information & communication | 2021 |
| Tiari Solutions Ltd | Transport & logistics | 2021 |
| Tibba 104 Ltd | Hospitality | 2025 |
| Tibba Spices & Marination Ltd | Hospitality | 2022 |
| Tibi Transport Ltd | Transport & logistics | 2014 |
| Ticco UK Construction Ltd | Construction | 2019 |
| Tick Consultants Ltd | Administrative & support | 2025 |
| Tidal Building Services Limited | Construction | 2026 |
| Tidbok Ltd | Real estate | 2025 |
| Tidy & Bright Ltd | Administrative & support | 2024 |
| Tidy Duty Ltd | Administrative & support | 2023 |