| Tippins Pubs Ltd | Hospitality | 2022 |
| Tippy Tappy Pet Co Ltd | Wholesale & retail | 2024 |
| Tipro (Yorkshire) Limited | Manufacturing | 2012 |
| Tipsy Bars Limited | Hospitality | 2014 |
| Tipu HUT Limited | Hospitality | 2025 |
| TIR Lettings Limited | Real estate | 2019 |
| Tirana TT Limited | Hospitality | 2020 |
| Tireinon Ltd | Hospitality | 2025 |
| Tires and Terrain Ltd | Information & communication | 2026 |
| Tirosh Koncept Limited | Information & communication | 2025 |
| Tirtlr Holdings Limited | Real estate | 2018 |
| TIRTLR10 Limited | Real estate | 2021 |
| TIRTLR3 Limited | Real estate | 2019 |
| TIRTLR6 Limited | Real estate | 2019 |
| TIRTLR9 Limited | Real estate | 2020 |
| Titan Climbing Ltd | Manufacturing | 2022 |
| Titan Fire Doors Limited | Manufacturing | 2026 |
| Titan Games Limited | Arts & recreation | 2023 |
| Titan Sales Ltd | Professional & scientific | 2025 |
| Titan Secure Solutions Limited | Administrative & support | 2024 |
| Titanic China Ltd | Hospitality | 2018 |
| TJ Coatings & Consumables Ltd | Wholesale & retail | 2022 |
| TJ Digital Systems Limited | Information & communication | 2024 |
| TJ Macleod Music Ltd | Arts & recreation | 2019 |
| TJ Takeaway Ltd | Hospitality | 2024 |
| Tj's Best Cafe and Bistro Ltd | Hospitality | 2025 |
| Tjbe Limited | Professional & scientific | 2018 |
| TJC Heritage Limited | Professional & scientific | 2015 |
| Tjfd Limited | Hospitality | 2023 |
| TJG Management Ltd | Professional & scientific | 2012 |
| Tjgraphics Ltd | Professional & scientific | 2026 |
| TJJ Plumbing Ltd | Construction | 2021 |
| TJR Digital Ltd | Professional & scientific | 2024 |
| TJW Contracting Ltd | Construction | 2009 |
| TK Nails Limited | Other services | 2018 |
| TK Nails Studio ST Limited | Other services | 2022 |
| TK Research Ltd | Professional & scientific | 2022 |
| TK Vans Limited | Transport & logistics | 2025 |
| Tkbawa Ltd | Hospitality | 2025 |
| TKO Management & Promotions Ltd | Arts & recreation | 2025 |
| TKP Music Limited | Arts & recreation | 2016 |
| TL Corporate Finance (Barber Harrison & Platt) LLP | | 2023 |
| TL Express Technologies Ltd | Information & communication | 2026 |
| TLA Group Limited | Professional & scientific | 2007 |
| TLC 4 Schools Limited | Manufacturing | 2010 |
| TLC Flooring Services Ltd | Construction | 2026 |
| TLC Solutions Ltd | Wholesale & retail | 2024 |
| TLR Lettings Limited | Real estate | 2014 |
| Tlse Medical Ltd | Health & social care | 2024 |
| TM Automotive Limited | Administrative & support | 2009 |
| TM Electrical Services (Yorks) Ltd | Construction | 2025 |
| TM Invest Pro Ltd | Real estate | 2024 |
| TM Lets (Yorkshire) Limited | Real estate | 2024 |
| TM Logistics Ltd | Transport & logistics | 2024 |
| TM Properties Limited | Real estate | 2014 |
| TM23 Property Limited | Real estate | 2022 |
| Tmap Ltd | Health & social care | 2022 |
| Tmaz Ltd | Health & social care | 2022 |
| TMG Anaesthetics Limited | Health & social care | 2018 |
| TMG Consulting Limited | Professional & scientific | 2025 |
| TMG Online Services Ltd | Professional & scientific | 2025 |
| TMK Stores Ltd | Wholesale & retail | 2020 |
| TML Worldwide Limited | Arts & recreation | 2021 |
| TMN Homes Ltd | Real estate | 2022 |
| TMP Advisory Limited | Professional & scientific | 2012 |
| TMS Online Ltd | Information & communication | 2021 |
| TMT Collective Ltd | Administrative & support | 2025 |
| Tmtned Ltd | Health & social care | 2024 |
| TN Building Ltd | Construction | 2021 |
| TN Inspection Ltd | Construction | 2022 |
| Tnlt Limited | Transport & logistics | 2023 |
| TNP Transport Ltd | Transport & logistics | 2022 |
| TNS Payment Platforms (UK) Limited | Administrative & support | 2014 |
| TNS Payment Platforms Limited | Information & communication | 2007 |
| TNS Radianz Limited | Information & communication | 2024 |
| TNS Transxpress Holding Company (U.K.) Limited | Professional & scientific | 1998 |
| TNT Leeds Properties Limited | Real estate | 2020 |
| TNT Roofing Specialist Ltd | Construction | 2020 |
| TNT Trading Ltd | Hospitality | 2023 |
| Tntc Ltd | Health & social care | 2025 |
| TO Go Falafel Ltd | Hospitality | 2020 |
| Toad Earth Ltd | Professional & scientific | 2026 |
| Toast N Roast Ltd | Hospitality | 2025 |
| Toasty Terraces Ltd | Construction | 2023 |
| Tobias John Properties Ltd | Real estate | 2022 |
| TOC Holdings Limited | Administrative & support | 2008 |
| Toco Solutions Limited | Information & communication | 2010 |
| Toco Trading Limited | Other services | 2002 |
| Today Fresh Limited | Hospitality | 2026 |
| Today's Catch Limited | Hospitality | 2019 |
| Todayword Limited | Construction | 1994 |
| Toddla T Limited | Arts & recreation | 2008 |
| Toddmond Ltd | Hospitality | 2026 |
| Todo Trans Limited | Transport & logistics | 2015 |
| Todwick Early Years Limited | Education | 2003 |
| Tofriends Ltd | Wholesale & retail | 2025 |
| Toftwood Health & Safety Solutions Limited | Professional & scientific | 2005 |
| Together Events PH Limited | Administrative & support | 2025 |
| Together for Good CIC | Education | 2025 |
| Together House Limited | Health & social care | 2025 |