| THE Revival Hub CIC | Education | 2012 |
| THE Ridgeway Exclusive Land Ltd | Construction | 2023 |
| THE Rock Quarter Limited | Arts & recreation | 2025 |
| THE Safety Centre Limited | Construction | 1998 |
| THE Secret Drinks Company Limited | Manufacturing | 2020 |
| THE Sensory Barbershop Salon Ltd | Other services | 2023 |
| THE Sensory Shack Community Interest Company | Health & social care | 2019 |
| THE Shamrock Trust | Arts & recreation | 2010 |
| THE Shin Company Ltd | Manufacturing | 2022 |
| THE SIX Hundred Limited | Professional & scientific | 2017 |
| THE Stem Clubhouse Ltd | Education | 2023 |
| THE Sweetest Thing Limited | Hospitality | 2023 |
| THE Tech Supermarket Ltd | Information & communication | 2020 |
| THE Unit Strength and Conditioning Limited | Arts & recreation | 2016 |
| THE Vacuum Glazing Network Limited | Construction | 2023 |
| THE Vikings Properties Limited | Households | 2025 |
| THE Village ( Birkenhead) Ltd | Hospitality | 2024 |
| THE Warren (Wallasey) Management Company Limited | Households | 2008 |
| THE Waterloo PUB Ltd | Hospitality | 2025 |
| THE Wedding Show Limited | Administrative & support | 2023 |
| THE West Puddington Sewage Treatment Company Ltd | Extraterritorial | 2019 |
| THE William James Collection Ltd | Construction | 2025 |
| THE Wirral Distillery Ltd | Manufacturing | 2025 |
| THE YOG HUT Limited | Hospitality | 2016 |
| Theatre Scenery Supplies Ltd | Manufacturing | 2017 |
| Theboxdiet Ltd | Hospitality | 2024 |
| Theluxurygoodsclub Limited | Wholesale & retail | 2022 |
| There Today Couriers Limited | Transport & logistics | 2014 |
| Thextons Ltd | Construction | 2016 |
| Think Trinity Limited | Professional & scientific | 2015 |
| Thinking CAP Global Media Co Ltd | Other services | 2026 |
| Thiru Food & Wine Ltd | Wholesale & retail | 2017 |
| This Life Limited | Wholesale & retail | 2026 |
| Thought Branch Limited | Real estate | 2015 |
| Threadneedle Management Limited | Households | 2022 |
| Three Brother Properties Ltd | Real estate | 2024 |
| Three Dimensional Training Limited | Education | 2016 |
| Threee Brothers Ltd | Hospitality | 2025 |
| Throttle Therapy Ltd | Manufacturing | 2025 |
| Tibitidy Cleaning Limited | Administrative & support | 2025 |
| Tikka Merseyside Ltd | Hospitality | 2024 |
| Tilleke Development Limited | Real estate | 2025 |
| Timson’S Mechanical Engineering & Commissioning Limited | Manufacturing | 2018 |
| Tiny Tools for Big Feelings CIC | Education | 2025 |
| Tipografic Limited | Manufacturing | 1989 |
| TIR3D Ltd | Health & social care | 2026 |
| Titan Signs Ltd | Wholesale & retail | 2025 |
| Titanium Utilities Ltd | Administrative & support | 2016 |
| Tite Ltd | Information & communication | 2024 |
| TJB Accountants Ltd | Professional & scientific | 2023 |
| Tjthirty Ltd | Manufacturing | 2025 |
| TM Access Limited | Construction | 2015 |
| TM89- Ltd | Health & social care | 2024 |
| TND Online Ltd | Wholesale & retail | 2025 |
| Tocyn Brwyn Investment Company | Financial services | 2018 |
| Toffee Rooms Limited | Construction | 2024 |
| Tolu Gabriel Limited | Transport & logistics | 2025 |
| TOM Thexton Consultancy Ltd | Professional & scientific | 2025 |
| TOM Woods Holdings Ltd | Information & communication | 2023 |
| Tomorrow's Women | Health & social care | 2012 |
| Tomstech Ltd | Manufacturing | 2020 |
| Tondo Trusted Limited | Wholesale & retail | 2021 |
| Tongue Tint Limited | Manufacturing | 2021 |
| Top Nails (Birkenhead) Ltd | Other services | 2025 |
| Topline Equine Ltd | Other services | 2026 |
| Toro Autos Ltd | Wholesale & retail | 2026 |
| Total Compliance Ltd | Professional & scientific | 2024 |
| Total Industrial and Domestic Services Ltd | Other services | 2016 |
| Total Ohms Electrical Services Limited | Construction | 2021 |
| Tour Tolerance Golf Ltd | Wholesale & retail | 2021 |
| Townhouse Lifestyle Ltd | Other services | 2021 |
| Townhouse Wirral Ltd | Arts & recreation | 2026 |
| TP North West Ltd | Construction | 2026 |
| TQA Consulting Ltd | Information & communication | 2025 |
| Trab Wirral Ltd | Hospitality | 2026 |
| Traction Engineering Solutions Ltd | Professional & scientific | 2024 |
| Trade Aluminium Holdings Ltd | Financial services | 2023 |
| Trade Aluminium Ltd | Manufacturing | 2023 |
| Trade Frame Direct Ltd | Construction | 2019 |
| Trade-Letters.Com Limited | Extraterritorial | 2009 |
| Tradecare UK Ltd | Wholesale & retail | 2025 |
| Traktara Limited | Information & communication | 2026 |
| Tralles Ltd | Hospitality | 2024 |
| Tranmere PO Limited | Wholesale & retail | 2025 |
| Tranmere Rovers Football Club (International) Limited | Education | 2019 |
| Tranmere Rovers Football Club Limited | Arts & recreation | 1911 |
| Tranmere Sailing Club Limited | Arts & recreation | 2025 |
| Tranmere's Bodega Limited | Wholesale & retail | 2024 |
| Tranquilla Limited | Information & communication | 2011 |
| Transfinite Tutoring Ltd | Education | 2024 |
| Treborth Uchaf Farm Ltd | Agriculture & fishing | 2018 |
| Treetmee Ltd | Information & communication | 2017 |
| Tremadog Holdings Ltd | Financial services | 2022 |
| Tressell Property Ltd | Real estate | 2023 |
| Trident Care Group Ltd | Health & social care | 2024 |
| Tridentica Medical Limited | Manufacturing | 2016 |
| Triggs Solutions Ltd | Professional & scientific | 2012 |
| Triple H Housing Limited | Information & communication | 2021 |
| Truck Styling Limited | Wholesale & retail | 2006 |
| Trueman Street Inn Ltd | Real estate | 2025 |