| Tavares-Solutions Ltd | Wholesale & retail | 2020 |
| Tavassoli Bros Ltd | Hospitality | 2017 |
| Tavern (Horsforth) Limited | Hospitality | 2024 |
| Tavern Snacks Limited | Wholesale & retail | 2016 |
| Tavernaki Bistro Limited | Hospitality | 2019 |
| Taverns & Pubs Ltd | Hospitality | 2025 |
| Tavistock Mews Residents Association Limited | Households | 2000 |
| Tavistock Park (Wortley) Management Company Limited | Households | 2001 |
| Tavistock Park Limited | Administrative & support | 2005 |
| TAW Consultancy (Yorks) Limited | Professional & scientific | 2020 |
| TAW Valley Limited | Arts & recreation | 2000 |
| Tawafic Ltd | Transport & logistics | 2026 |
| Tawakalkeys Limited | Wholesale & retail | 2025 |
| Tawanaishe Ltd | Health & social care | 2020 |
| Tawasol Ltd | Education | 2021 |
| Tax Hub Solutions Ltd | Professional & scientific | 2025 |
| Tax Smart Accountancy Ltd | Professional & scientific | 2023 |
| Taxease Limited | Professional & scientific | 2002 |
| Taxflex Ltd | Professional & scientific | 2022 |
| Taxi Share Global Ltd | Transport & logistics | 2025 |
| Taxpillar Ltd | Administrative & support | 2016 |
| Taxset Accountants Limited | Professional & scientific | 2019 |
| Taxwithdanny Limited | Professional & scientific | 2021 |
| TAY Estates Ltd | Real estate | 2021 |
| TAY Valley Lighting (Hampshire) Limited | Other services | 2009 |
| TAY Valley Lighting (Knowsley) Limited | Other services | 2011 |
| TAY Valley Lighting (Knowsley) Midco Limited | Financial services | 2022 |
| TAY Valley Lighting (Leeds) Limited | Other services | 2005 |
| TAY Valley Lighting (Newcastle and North Tyneside) Limited | Other services | 2002 |
| TAY Valley Lighting (Nottingham) Limited | Other services | 2010 |
| TAY Valley Lighting (Nottingham) Midco Limited | Financial services | 2019 |
| TAY Valley Lighting (Southampton) Limited | Other services | 2009 |
| TAY Valley Lighting (Southampton) Midco Limited | Financial services | 2022 |
| TAY Valley Lighting (Stoke on Trent) Limited | Other services | 2002 |
| TAY Valley Lighting (West Sussex) Limited | Other services | 2009 |
| Taybell Alarms Limited | Administrative & support | 1986 |
| Taycare Group Limited | Financial services | 2022 |
| Taycare Holdings Limited | Financial services | 2009 |
| Taycare Management Limited | Financial services | 2026 |
| Taye Training and Consultancy Ltd | Education | 2017 |
| Tayler Lola Limited | Real estate | 2018 |
| Tayler Tilley Marketing Limited | Administrative & support | 2011 |
| Taylor & Hardy Limited | Professional & scientific | 2000 |
| Taylor Ah-Sam Limited | Arts & recreation | 2022 |
| Taylor Clinical Consultancy Ltd | Health & social care | 2018 |
| Taylor Equity Group Limited | Financial services | 2023 |
| Taylor Fabrications Limited | Manufacturing | 2012 |
| Taylor Heritage Homes Ltd | Health & social care | 2025 |
| Taylor Heritage Properties Ltd | Real estate | 2025 |
| Taylor Made FUN Limited | Arts & recreation | 1999 |
| Taylor North Sports Recruitment Ltd | Administrative & support | 2015 |
| Taylor Roche Ltd. | Real estate | 2017 |
| Taylor Tide Ltd | Education | 2021 |
| Taylor Wood Design Limited | Extraterritorial | 2022 |
| Taylor Wright Roofing Limited | Construction | 2021 |
| Taylor Wright Scaffold Limited | Construction | 2018 |
| Taylor's Bloodstock Ltd | Agriculture & fishing | 2009 |
| Taylor's Property Developments (Yorkshire) Ltd | Construction | 2014 |
| Taylor's Real Estate (Yorkshire) Ltd | Real estate | 2019 |
| Taylor's Sports Bar and Grill Ltd | Hospitality | 2023 |
| Taylor-Jones Limited | Construction | 2005 |
| Taylor-Milner(Shop Fitters)Limited | | 1966 |
| Taylor-Smith Management Ltd | Construction | 2025 |
| Taylor-Smith Property Ltd | Financial services | 2025 |
| Taylor-Smith Rentals Ltd | Real estate | 2021 |
| Taylor-Smith Stays Ltd | Hospitality | 2025 |
| Taylored Trees Services Ltd | Administrative & support | 2026 |
| Taylors Bookmakers Limited | Arts & recreation | 2008 |
| Taylors Maintenance Ltd | Construction | 2025 |
| Taylors Property Developments (Rose Court) Ltd | Real estate | 2020 |
| Tayrun Consulting Ltd | Professional & scientific | 2025 |
| Tayu Limited | Hospitality | 2025 |
| Tayview Gardening Limited | Administrative & support | 2014 |
| TAZ B/H Ltd | Real estate | 2022 |
| TAZ Convenience Store Ltd | Wholesale & retail | 2018 |
| Taza Trading Ltd | Wholesale & retail | 2026 |
| Tazeem Homes Limited | Real estate | 2023 |
| Tazer Black Limited | Information & communication | 2019 |
| Tazz Convenience Store Limited | Wholesale & retail | 2023 |
| TB Accountancy | Other services | 2021 |
| TB Contractual Ltd | Transport & logistics | 2023 |
| TB Realisations Limited | Administrative & support | 2005 |
| TBA Flooring Ltd | Wholesale & retail | 2016 |
| TBA Security Solutions Limited | Administrative & support | 2013 |
| TBE Heating Solutions Limited | Construction | 2019 |
| Tbet CP1 Ltd | Real estate | 2018 |
| Tbet CP2 Ltd | Real estate | 2018 |
| Tbet Developments Ltd | Real estate | 2017 |
| Tbet Holdings Ltd | Professional & scientific | 2017 |
| Tbet Ltd | Real estate | 2017 |
| Tbet Offices Ltd | Real estate | 2018 |
| Tbfg Health Care Limited | Health & social care | 2014 |
| TBH Holdings Ltd | Financial services | 2022 |
| Tbit Services Ltd | Information & communication | 2016 |
| Tbmc Group Limited | Professional & scientific | 2001 |
| Tbme Ltd | Professional & scientific | 2023 |
| TBS Components Limited | Manufacturing | 2014 |
| TBS Real Estate Ltd | Real estate | 2024 |
| TBW Global Limited | Professional & scientific | 2018 |
| TBX Technology Ltd | Information & communication | 2013 |