| Taagex Ltd | Information & communication | 2012 |
| Taaza Enterprises Limited | Wholesale & retail | 2021 |
| TAB 24 Supplements Limited | Health & social care | 2024 |
| TAB Consult Limited | Professional & scientific | 2026 |
| TAB24 Gyms Ltd | Arts & recreation | 2021 |
| Tabaku Ltd | Construction | 2026 |
| Tabarau Limited | Administrative & support | 2026 |
| Tabby Luggage Ltd | Wholesale & retail | 2023 |
| Tabiner Projects Limited | Other services | 2009 |
| Tabitha Designs Ltd | Manufacturing | 2013 |
| Table Mountain Ltd | Hospitality | 2019 |
| Tabss Manor Limited | Real estate | 2023 |
| Tabstone Services Limited | Construction | 1997 |
| Tabt UK Limited | Transport & logistics | 2025 |
| Tabula Rasa Projects Ltd | Information & communication | 2019 |
| Tacari Ltd | Wholesale & retail | 2013 |
| Tachiagaru Property Investments Ltd | Real estate | 2025 |
| Tacs Properties Ltd | Real estate | 2025 |
| Tactical FOX Ltd | Manufacturing | 2023 |
| Tactical Preps UK Ltd | Wholesale & retail | 2023 |
| Tad's Haulage Ltd | Transport & logistics | 2016 |
| Tadworth Limited | Education | 2011 |
| Tadworth Results Ltd | Transport & logistics | 2015 |
| Taez Ltd | Health & social care | 2021 |
| TAFADZWA23 Ltd | Health & social care | 2024 |
| Tafah Ltd | Wholesale & retail | 2022 |
| Tafi Care Ltd | Health & social care | 2013 |
| Taflin Limited | Hospitality | 2023 |
| TAG 1923 Limited | Real estate | 2025 |
| TAG Building Limited | Financial services | 2016 |
| TAG Transport Ltd | Transport & logistics | 2026 |
| Tagam (Property) Limited | Real estate | 2006 |
| Tagforlife Ltd | Manufacturing | 2025 |
| Taggar Haulage Ltd | Transport & logistics | 2022 |
| Tagwaves Ltd | Manufacturing | 2014 |
| Tahir Sacranie Ltd | Wholesale & retail | 2020 |
| Tahleel Consultancy Limited | Information & communication | 2023 |
| Tahqiq Ltd | Education | 2025 |
| TAI & Co. Holding Ltd | Education | 2025 |
| TAI Holdings Ltd | Real estate | 2024 |
| TAI Properties Ltd | Real estate | 2026 |
| Taiba Investments Ltd | Real estate | 2022 |
| Taiba Leicester Ltd | Professional & scientific | 2018 |
| Taibah Pearls Ltd | Manufacturing | 2018 |
| Taihan Smart Solutions Ltd | Wholesale & retail | 2023 |
| Taikein Kitchen and Services Limited | Hospitality | 2026 |
| Tailor Estates LLP | | 2009 |
| Tailor Investments Limited | Real estate | 2020 |
| Tailor's Investments Ltd | Real estate | 2023 |
| Tailor-Grace Limited | Wholesale & retail | 2020 |
| Tailored Access Equipment Ltd | Wholesale & retail | 2020 |
| Tailored Education Services Limited | Education | 2022 |
| Tailored Engineering Services Ltd | Manufacturing | 2018 |
| Tailored Enterprise Ltd | Agriculture & fishing | 2021 |
| Tailored Garden Designs & Construction Ltd | Administrative & support | 2026 |
| Tailored Investment Holdings Ltd | Real estate | 2021 |
| Tailored Memorials Limited | Manufacturing | 2025 |
| Tailored SA Limited | Real estate | 2023 |
| Tailored Space (UK) Limited | Real estate | 2005 |
| Tailored Taste Ltd | Professional & scientific | 2020 |
| Tailormade Healthcare Support Ltd | Administrative & support | 2023 |
| Tailormade Marketing Limited | Financial services | 2012 |
| Tailors and Co Holdings Ltd | Financial services | 2019 |
| Tailors Outlet Limited | Wholesale & retail | 2016 |
| Tailors Property Ltd | Real estate | 2021 |
| Tailwin Ltd | Wholesale & retail | 2025 |
| Tairet Ltd | Construction | 2020 |
| Taiz Modification Ltd | Manufacturing | 2025 |
| TAJ F Limited | Hospitality | 2019 |
| TAJ for Trading Ltd | Wholesale & retail | 2025 |
| TAJ Meat Supplies Limited | Wholesale & retail | 2024 |
| TAJ Soft (UK) Limited | Information & communication | 2001 |
| TAJ Store Limited | Wholesale & retail | 2025 |
| Tajdaar-E-Madina | Other services | 2009 |
| Tajir Traders Ltd | Wholesale & retail | 2017 |
| Tajwid.Io Ltd | Education | 2025 |
| Taka Labs Ltd | Information & communication | 2023 |
| Takapuna Limited | Real estate | 2017 |
| Takco Ltd | Real estate | 2019 |
| Takdeer Logistics Ltd | Transport & logistics | 2026 |
| Take a Break Hosting Ltd | Hospitality | 2023 |
| Take and Pick Foods Ltd | Hospitality | 2026 |
| Take Care International Ltd | Real estate | 2024 |
| Take OFF Travel Limited | Administrative & support | 2017 |
| Takearoute Mobility Ltd | Transport & logistics | 2026 |
| Takeover Leicester Broadcasting CIC | Information & communication | 2022 |
| Takhar Developments Ltd | Real estate | 2025 |
| Takmed Limited | Public administration | 2025 |
| Taks House Company Limited | Hospitality | 2017 |
| Takt Services Limited | Wholesale & retail | 2015 |
| Takura Logistics Limited | Transport & logistics | 2025 |
| TAL Contractors Ltd | Construction | 2019 |
| Talasa Ltd | Real estate | 2021 |
| Talavera MC Limited | Real estate | 2005 |
| Talbot Engineering Services Limited | Professional & scientific | 2025 |
| Talck Health Care Limited | Health & social care | 2019 |
| Talent by Trinity Ltd | Administrative & support | 2024 |
| Talent Sprout Limited | Professional & scientific | 2010 |
| Talented Recruit Ltd | Administrative & support | 2025 |
| Talents Support Solutions Ltd | Administrative & support | 2025 |