| TAJ Mahal Express Ltd | Hospitality | 2024 |
| Tajmeel Clinic Ltd | Health & social care | 2007 |
| TAK Marine Services Ltd | Professional & scientific | 2024 |
| Take-Off Flight Training Limited | Professional & scientific | 2015 |
| Talavale (Properties) Limited | Construction | 1977 |
| Talbot (Winton) Ltd | Real estate | 2020 |
| Talbot Grange Limited | Real estate | 1994 |
| Talbot Heath School Trust Limited | Education | 1981 |
| Talbot Mews Management Company Limited | Households | 1990 |
| Talbot Pines (Bournemouth) Management Company Limited | Households | 2000 |
| Talbot Quarter Limited | Real estate | 2020 |
| Talbot Woods Services Limited | Health & social care | 2018 |
| Talent 2U Direct Ltd | Information & communication | 2026 |
| Talent Connect Management Ltd | Professional & scientific | 2024 |
| Talewind Games Development Limited | Information & communication | 2022 |
| Talewind Limited | Professional & scientific | 2021 |
| Talim Limited | Other services | 2017 |
| Talk Think DO Limited | Information & communication | 2014 |
| Tallied Accountancy Ltd | Professional & scientific | 2017 |
| Talon Storage Solutions Ltd | Transport & logistics | 2026 |
| Talowe Limited | Administrative & support | 1997 |
| Tamaar Ltd | Other services | 2014 |
| Tamara Ventures Capital Limited | Real estate | 2025 |
| Tamden Ltd | Real estate | 2018 |
| Tamora Property Group Ltd | Real estate | 2024 |
| TAN ASA Future Ltd | Wholesale & retail | 2020 |
| TAN Shack Bournemouth Ltd | Other services | 2017 |
| TAN Shack Moordown Ltd | Other services | 2023 |
| Tangent Homes Limited | Administrative & support | 2006 |
| Tangmere Place Management Company Limited | Households | 1983 |
| Tangsuk Ltd | Hospitality | 2023 |
| Tanin Builders Limited | Mining & quarrying | 2025 |
| Tanoh Ltd | Wholesale & retail | 2024 |
| Tanrego Limited | Information & communication | 2024 |
| Tansa Limited | Wholesale & retail | 2013 |
| Tansel Ltd | Wholesale & retail | 2024 |
| Tanya K Counselling Ltd | Health & social care | 2024 |
| Taobaoyuan Limited | Real estate | 2021 |
| TAP Conveyancing Limited | Professional & scientific | 2024 |
| Taper Barber Shop Ltd | Other services | 2025 |
| Taptochange Community Interest Company | Public administration | 2024 |
| Tarcole Limited | Real estate | 2002 |
| Target IT (Holdings) Ltd | Financial services | 2019 |
| Target IT Services (Bournemouth) Ltd | Information & communication | 2009 |
| Targitr Ltd | Information & communication | 2025 |
| Tarik Catering Ltd | Hospitality | 2009 |
| Tarn Drive (Creekmoor) Limited | Households | 2004 |
| Tarrant (Bournemouth) Management Company Limited | Other services | 1983 |
| Tarrazona Court Management Limited | Households | 1988 |
| TAS Southern Properties Ltd | Real estate | 2025 |
| Tashisushi Limited | Hospitality | 2023 |
| Taste of Afrika International Ltd | Manufacturing | 2026 |
| Taste of Afrika Ltd | Wholesale & retail | 2022 |
| Taste of Beer Media Ltd | Professional & scientific | 2024 |
| Tastetrailgo Limited | Information & communication | 2024 |
| Tasty (Dorset) Limited | Hospitality | 2020 |
| Tasty Delight Ventures Ltd | Wholesale & retail | 2025 |
| Tasty Food Poole Limited | Hospitality | 2016 |
| Tasty Moment Limited | Hospitality | 2014 |
| Tate Brick and Build Ltd | Construction | 2012 |
| Tateecom Ltd | Wholesale & retail | 2026 |
| Taten Care Ltd | Health & social care | 2019 |
| Taten Limited | Administrative & support | 2013 |
| Tattoo Tattoo Ltd | Arts & recreation | 2025 |
| Tatz & Tulz Ltd | Health & social care | 2026 |
| TAX4U Services Ltd | Professional & scientific | 2023 |
| Taxnetuk Ltd | Extraterritorial | 2010 |
| Taxtct Ltd | Information & communication | 2023 |
| TAY Design Consultancy Limited | Other services | 1994 |
| Taylor Hygiene Limited | Health & social care | 2009 |
| Taylor Price Ltd | Other services | 2024 |
| Taylorea Limited | Real estate | 2015 |
| Taylored Barbering Limited | Other services | 2026 |
| Tbakes Ltd | Hospitality | 2025 |
| TC Accountants 001 Limited | Professional & scientific | 2018 |
| TC Services Plumbing Ltd | Construction | 2013 |
| TC1 Lettings Limited | Real estate | 2021 |
| TCG Buddha Ltd | Wholesale & retail | 2026 |
| TCT Bournemouth Ltd | Hospitality | 2025 |
| TD Authentic Food Ltd | Hospitality | 2025 |
| TD Contracting Ltd | Information & communication | 2011 |
| TD Training & Consultancy Ltd | Education | 2024 |
| TDI Turbos Ltd | Wholesale & retail | 2012 |
| TDJ Design Limited | Construction | 2021 |
| Tdjkz Limited | Professional & scientific | 2022 |
| Tdtm Ltd | Transport & logistics | 2023 |
| Tea & Cricket House Ltd | Real estate | 2020 |
| Tea and Tequila Trading Limited | Manufacturing | 2014 |
| Teacher GRA OET Exam Tutor Ltd | Education | 2022 |
| Teachers Assurance Company Limited | Financial services | 1936 |
| Teachers Financial Services Limited | Financial services | 1997 |
| Team 88 Communications Limited | Professional & scientific | 2009 |
| Team Association Limited | Administrative & support | 1982 |
| Team Blackmore Coaching Ltd | Arts & recreation | 2020 |
| Team Fortis CIC | Arts & recreation | 2025 |
| Team Green Properties Limited | Real estate | 2020 |
| Team Holland Limited | Information & communication | 2014 |
| Team Mind Ltd | Administrative & support | 2019 |
| Teamcc Ltd | Arts & recreation | 2014 |
| Tears of Avia Limited | Information & communication | 2017 |