| TIA RX Ltd | Professional & scientific | 2024 |
| Tianma Ltd | Transport & logistics | 2015 |
| Tican (Chilled) Limited | Wholesale & retail | 2000 |
| Tichkulaytransporters Ltd | Transport & logistics | 2025 |
| Tick Tock Trading Ltd | Wholesale & retail | 2019 |
| Tick-Tock Logistics Limited | Transport & logistics | 2018 |
| Tidy Motors Limited | Wholesale & retail | 2026 |
| Tidy Ride Ltd. | Extraterritorial | 2008 |
| Tidy Trader Ltd | Education | 2025 |
| Tier One Assets Ltd | Real estate | 2023 |
| Tifee Clothings Ltd | Wholesale & retail | 2026 |
| Tigerus Limited | Wholesale & retail | 2021 |
| Tijari Ltd | Wholesale & retail | 2024 |
| Tijen Ltd | Health & social care | 2025 |
| TIK Enterprises Ltd | Wholesale & retail | 2026 |
| Tikka Extra Ltd | Hospitality | 2025 |
| Till Ceilings & Partitions Ltd | Construction | 2020 |
| Tillorian Consultancy Limited | Professional & scientific | 2024 |
| Tilsca UK Limited | Professional & scientific | 2019 |
| TIM Tiya Limited | Health & social care | 2013 |
| Tim's Wine Cellar Limited | Wholesale & retail | 2011 |
| Timdel Solutions Ltd | Manufacturing | 2013 |
| Time to Trading Limited | Wholesale & retail | 2011 |
| Timeline Homecare Limited | Health & social care | 2017 |
| Timeplan Management Ltd | Real estate | 2024 |
| Timisoara Mini Market Walsall Limited | Wholesale & retail | 2025 |
| TIN CAN Comms Limited | Information & communication | 2016 |
| TIN Ventures Limited | Financial services | 2021 |
| Tina&Darius Trans Limited | Transport & logistics | 2016 |
| Ting'A Traders Limited | Public administration | 2020 |
| Tinkerbell's Cards and Gifts Limited | Wholesale & retail | 2018 |
| Tinuanna Limited | Health & social care | 2018 |
| Tiny Talents Pre-School Limited | Health & social care | 2017 |
| Tiny Tasters Catering Limited | Hospitality | 2021 |
| Tinypixel Studios Ltd. | Information & communication | 2022 |
| Tipsy Tales Mobile Bar Ltd | Hospitality | 2021 |
| Tisya Limited | Information & communication | 2008 |
| Titan Property Holdings Ltd | Real estate | 2018 |
| Titan Recruitment Limited | Administrative & support | 2015 |
| Titan Tech & Lifestyle Ltd | Wholesale & retail | 2025 |
| Titan Watch Limited | Administrative & support | 2024 |
| Titan Wholesale Ltd | Wholesale & retail | 2025 |
| Titanmix Ltd | Wholesale & retail | 2025 |
| Tiverton Healthcare Limited | Extraterritorial | 2025 |
| TJ Development Limited | Information & communication | 2022 |
| TJ Star Ltd | Real estate | 2023 |
| TJB Property Maintenance Limited | Construction | 2021 |
| TJC Cars Ltd | Wholesale & retail | 2024 |
| TJM Holdings Limited | Professional & scientific | 1987 |
| TJR Body Worx Ltd | Wholesale & retail | 2017 |
| TJR Holdings Ltd | Financial services | 2019 |
| Tjtuk Limited | Arts & recreation | 2007 |
| TK GFX Ltd | Information & communication | 2015 |
| TK10 Logistics Ltd | Transport & logistics | 2024 |
| TKJ Pharma Ltd | Administrative & support | 2025 |
| TKS Holdings Ltd | Real estate | 2020 |
| Tlcareservices Limited | Administrative & support | 2019 |
| TLY Limited | Transport & logistics | 2019 |
| TM 2024 Realisations Limited | Manufacturing | 1952 |
| TM Conveyancing Limited | Administrative & support | 2024 |
| TM Delivery Limited | Transport & logistics | 2024 |
| TM Harnesses Limited | Manufacturing | 2015 |
| TM Haulage Ltd | Transport & logistics | 2025 |
| TM Medicare Solutions Ltd | Professional & scientific | 2022 |
| TM Telford Limited | Hospitality | 2026 |
| Tmac Investments Limited | Financial services | 2022 |
| Tmac Residential Limited | Real estate | 2021 |
| TMC Transport Ltd | Transport & logistics | 2024 |
| TMD Group Ltd | Transport & logistics | 2025 |
| TMD Transport Ltd | Transport & logistics | 2026 |
| TMG Removals & Deliveries Ltd | Transport & logistics | 2026 |
| Tmluxe Ltd | Wholesale & retail | 2025 |
| TMR Global Ltd | Professional & scientific | 2016 |
| TMT Autobodies Limited | Transport & logistics | 2016 |
| TMT Furniture Solutions Ltd | Wholesale & retail | 2019 |
| Tmtr Investments Limited | Real estate | 2022 |
| TN Specialist Transport Ltd | Transport & logistics | 2026 |
| Tn-Smith Ltd | Health & social care | 2026 |
| TNB Services Ltd | Health & social care | 2019 |
| TND Enterprises Pro Ltd | Wholesale & retail | 2024 |
| TNH Property Estates Ltd | Real estate | 2025 |
| Tnna Ltd | Other services | 2026 |
| TNR (Midlands) Ltd | Construction | 2010 |
| TNR Community Support Limited | Professional & scientific | 2015 |
| TNS Distribution Group Limited | Transport & logistics | 2024 |
| TNS PH Solutions Limited | Transport & logistics | 2026 |
| TO BE Crowned Group Limited | Other services | 2025 |
| TO1G Ltd | Wholesale & retail | 2022 |
| TOB Building Services Limited | Manufacturing | 2020 |
| Tobex Limited | Health & social care | 2023 |
| Tobias Jones Consulting Limited | Professional & scientific | 2009 |
| Toby Oury TKD Limited | Arts & recreation | 2016 |
| Tocyber Technologies Limited | Information & communication | 2022 |
| Today Food Bloxwich Ltd | Hospitality | 2024 |
| Toddle About Community CIC | Administrative & support | 2025 |
| TOG Entertainment Ltd | Professional & scientific | 2026 |
| TOI ET MOI Holdings Limited | Construction | 2022 |
| Tokyo WOK Limited | Hospitality | 2018 |
| Tolex Health Care Service Ltd | Administrative & support | 2026 |
| Toluca Ltd | Real estate | 2026 |