| Twin Care Ltd | Hospitality | 2022 |
| Twin Care Services Limited | Financial services | 2025 |
| Twin Service Solutions Limited | Construction | 2016 |
| Twinkletidy Ltd | Administrative & support | 2025 |
| Twist and Twirl Vending Ltd | Administrative & support | 2024 |
| Twist Electrical Ltd | Construction | 2022 |
| TWISTEDPINTS22 Ltd | Hospitality | 2022 |
| Twitchell Industrial Brushes Limited | Other services | 2019 |
| Twkp C.I.C. | Education | 2012 |
| Two Beards PUB Company Ltd | Hospitality | 2024 |
| Two Brothers Estates Ltd | Real estate | 2019 |
| Two for Joy Tattoo Limited | Other services | 2019 |
| TWOWAYS24 Limited | Wholesale & retail | 2024 |
| TWS Holdings Ltd | Real estate | 2022 |
| TWS Recycling Ltd | Water & waste | 2022 |
| TWS Skip Hire Ltd | Administrative & support | 2021 |
| TY 24 Ltd | Construction | 2015 |
| TYB Properties Ltd | Real estate | 2024 |
| Tyersal Crescent Flat Management Company Limited | Households | 1982 |
| Tyersal Private Hire Limited | Transport & logistics | 2025 |
| Tyersal SBD Properties Limited | Households | 2025 |
| Tykc Limited | Other services | 2025 |
| Tyke (Outdoor Pursuits) Limited | | 1981 |
| Tyne Point Car Sales Limited | Wholesale & retail | 2021 |
| Tyne Taverns Limited | Hospitality | 2021 |
| Tyne Tees Bolt & NUT Company Limited | Wholesale & retail | 1975 |
| Tyre Bay BFD Ltd | Wholesale & retail | 2020 |
| Tyre LAB Group Ltd | Wholesale & retail | 2026 |
| Tyre N Autocare Limited | Wholesale & retail | 2019 |
| Tyre TEK Mobile Services Limited | Extraterritorial | 2024 |
| Tyre Trax (Bradford) Ltd | Wholesale & retail | 2014 |
| Tyre Wizard Ltd | Manufacturing | 2024 |
| Tyre Wright Mobile Tyre Services Limited | Wholesale & retail | 2020 |
| Tyre's Penu Refien Ltd | Wholesale & retail | 2024 |
| Tyreco Ltd | Real estate | 2024 |
| Tyremaster (Bradford) Limited | Extraterritorial | 2008 |
| Tyrenation Wholesale Ltd | Wholesale & retail | 2026 |
| Tyrepalace Global Services Limited | Wholesale & retail | 2024 |
| Tyrer Transport Ltd | Transport & logistics | 2013 |
| Tyres Kingdom Ltd | Wholesale & retail | 2024 |
| Tyreseal Ltd | Manufacturing | 2026 |
| Tyrewright Limited | Wholesale & retail | 2016 |
| Tyson Engineering Limited | Manufacturing | 2012 |
| Tytoty Limited | Manufacturing | 2025 |
| TZ Holdingz Ltd | Real estate | 2026 |
| TZ Listings Ltd | Wholesale & retail | 2025 |
| TZ Trading UK Ltd | Wholesale & retail | 2025 |
| TZK Corporation Ltd | Wholesale & retail | 2011 |
| Tzsales Ltd | Wholesale & retail | 2026 |
| U & a BED Supplies Ltd | Wholesale & retail | 2026 |
| U a Associates Ltd | Health & social care | 2015 |
| U Certa Bradford Ltd | Wholesale & retail | 2023 |
| U H Z Fashion Ltd | Wholesale & retail | 2026 |
| U Khan Consultancy Ltd | Professional & scientific | 2024 |
| U R a M H H Investments Ltd | Real estate | 2017 |
| U Sheikh Locums Ltd | Health & social care | 2012 |
| U W S Investments Ltd | Real estate | 2024 |
| U Z Investments Limited | Real estate | 2024 |
| U&A Swift Services Limited | Wholesale & retail | 2024 |
| U&H Delight Ltd | Wholesale & retail | 2019 |
| U&K Builders Ltd | Construction | 2025 |
| U&R Limited | Wholesale & retail | 2022 |
| U.G.A. Limited | Wholesale & retail | 1999 |
| U.K & Europe Imports Ltd | Wholesale & retail | 2023 |
| U.K. Monitoring Limited | Administrative & support | 1984 |
| U.M 28 Ltd | Financial services | 2026 |
| U.M Furnishings Ltd | Wholesale & retail | 2026 |
| U.M Rehman Ltd | Wholesale & retail | 2022 |
| U.M.Y Transport Limited | Transport & logistics | 2024 |
| UA Sons Ltd | Wholesale & retail | 2025 |
| UA Techmind Ltd | Information & communication | 2025 |
| UAB Properties Limited | Real estate | 2025 |
| UAH Sourcing Ltd | Administrative & support | 2025 |
| UAK Accountants Ltd | Professional & scientific | 2024 |
| UAK Plumbing & Heating Solutions Ltd | Construction | 2022 |
| Uakh Ltd | Transport & logistics | 2025 |
| UAR Ventures Ltd | Wholesale & retail | 2026 |
| UB Capital Ltd | Real estate | 2026 |
| UB Plugz Ltd | Wholesale & retail | 2025 |
| UBA Holding Ltd | Real estate | 2020 |
| Ubaid Khan Ltd | Wholesale & retail | 2025 |
| UBC (Heaton) Ltd | Manufacturing | 2022 |
| Uber Selfassesment Services Limited | Professional & scientific | 2025 |
| UBH Accountancy Services Limited | Professional & scientific | 2023 |
| UBH42 Ltd | Households | 2024 |
| Ubik Properties Ltd | Real estate | 2025 |
| Ubique Construction and Consultancy Ltd | Construction | 2025 |
| Ubique Projects Ltd | Professional & scientific | 2013 |
| Ucselreb Limited | Construction | 2022 |
| UDB Solutions Limited | Information & communication | 2005 |
| Udisy Group Limited | Construction | 2023 |
| Udrive BFD Ltd | Administrative & support | 2024 |
| UFA Marketplace Ltd | Wholesale & retail | 2018 |
| UFC Ultimate Fitness Club Limited | Arts & recreation | 2011 |
| UFK Logistics and Removals Ltd | Transport & logistics | 2025 |
| UFO Nails Limited | Other services | 2023 |
| UFP (UK) Limited | Wholesale & retail | 1994 |
| Uhamz Ltd | Wholesale & retail | 2025 |
| UHB (BFD) Limited | Other services | 2025 |
| UHK Logistics Ltd | Transport & logistics | 2024 |