| THE Client Property Ltd | Real estate | 2024 |
| THE Cocktail Kart Ltd | Wholesale & retail | 2025 |
| THE Dale Food Company Pembrokeshire Ltd | Hospitality | 2018 |
| THE Ferry Inn (Hazelbeach) Limited | Hospitality | 2003 |
| THE Galley Neyland Ltd | Hospitality | 2025 |
| THE Hake Inn Limited | Hospitality | 2015 |
| THE Harbourmaster Limited | Hospitality | 2006 |
| THE Late Night Veterans Show Ltd | Information & communication | 2024 |
| THE Legionnaire Limited | Hospitality | 2015 |
| THE Portside Deli Limited | Hospitality | 2013 |
| THE Professionals Network Ltd | Professional & scientific | 2013 |
| THE Rainbow Rooms Bar and Club Ltd | Hospitality | 2015 |
| THE Scoop Ice Cream Company Limited | Manufacturing | 2020 |
| THE Shipwright Inn Ltd | Hospitality | 2025 |
| THE Single Mingler Limited | Information & communication | 2025 |
| THE Super Plumber Ltd | Professional & scientific | 2015 |
| THE Thinking Group Limited | Administrative & support | 2004 |
| THE Trafalgar (MH) Limited | Hospitality | 2025 |
| THE Vibe Pembs Limited | Hospitality | 2025 |
| Thelina Ltd | Other services | 2014 |
| Thema Consultancy Ltd | Professional & scientific | 2008 |
| Thermalvent (Wales & West) Limited | Construction | 2018 |
| Thinking Australia Limited | Administrative & support | 2002 |
| Thomas Farms Group Wales Ltd | Agriculture & fishing | 2022 |
| Thomas Turf Wales Ltd | Agriculture & fishing | 2022 |
| Thornton Motors Services (Pembrokeshire) Limited | Wholesale & retail | 2013 |
| Titian A&G Limited | Professional & scientific | 2015 |
| Todaro's Hairdressing Limited | Other services | 2000 |
| TOM Newing & Sons Limited | Other services | 1963 |
| TOM Peppers Limited | Hospitality | 2016 |
| Top Notch Motors Pembs Limited | Wholesale & retail | 2025 |
| Top Notch Properties Limited | Real estate | 2024 |
| Torch Theatre Company Limited(The) | Arts & recreation | 1977 |
| Torch Theatre Production Company Limited | Arts & recreation | 2014 |
| Traction Control Ltd | Wholesale & retail | 2025 |
| Trade Access Solutions Ltd | Wholesale & retail | 2025 |
| Trafalgar Properties RTM Company Limited | Professional & scientific | 2016 |
| Transept Vision Ltd | Professional & scientific | 2023 |
| Trathmor Villas Limited | Professional & scientific | 1982 |
| Tree & Sons Limited | Construction | 2004 |
| Tree & Sons Properties Ltd | Real estate | 2020 |
| Trefloyne Care Services Limited | Hospitality | 2009 |
| Trefloyne Residential Care Ltd | Health & social care | 2023 |
| Trinity House Leisure Limited | Real estate | 1987 |
| Triple a Designs Ltd | Real estate | 2026 |
| True North Brickwork Ltd | Construction | 2025 |
| Tweedmoor Canine Retreat Ltd | Other services | 2026 |
| Twmpath Ltd | Other services | 2024 |
| Two Seas Engineering Limited | Other services | 2013 |
| TY Lewis Associates Limited | Professional & scientific | 2004 |
| TY NI Holdings Limited | Construction | 2026 |
| Ty'N -Y- Coed Care Limited | Health & social care | 2014 |
| Ty'N-Y-Coed Limited | Health & social care | 2023 |
| U.K. Ships Stores & Logistics Ltd | Wholesale & retail | 2010 |
| Ultrabooth Holdings Limited | Financial services | 2016 |
| Ultrabooth Limited | Professional & scientific | 2023 |
| Unified Digital Technologies Ltd | Information & communication | 2023 |
| United Aerospace Limited | Manufacturing | 2004 |
| Uzmaston Projects Ltd | Construction | 2004 |
| Uzmaston Residential Limited | Construction | 2004 |
| Value Independence Community Interest Company | Education | 2008 |
| Velky & Velky Ltd | Professional & scientific | 2015 |
| Vennenergy Limited | Energy | 2008 |
| Ventfab Ltd | Construction | 2025 |
| VIBE24 Ltd | Wholesale & retail | 2026 |
| VIP Gymnastics Club CIC | Education | 2025 |
| Voltaris Power Ltd | Construction | 2026 |
| VP Tanning Ltd | Other services | 2025 |
| W2 Construction Limited | Construction | 2018 |
| Wales and West Coast Fish Producers Organisation Limited | Agriculture & fishing | 1992 |
| Walters Fire and Security Consultants Limited | Administrative & support | 2005 |
| Walters General Ltd. | Administrative & support | 1997 |
| Walters Safety & Consultancy Ltd | Professional & scientific | 2026 |
| Warrior House Apartments Ltd | Professional & scientific | 2005 |
| Warton's Properties Limited | Real estate | 2020 |
| WATER1314 Ltd | Hospitality | 2025 |
| Waterfront Gallery | Arts & recreation | 2005 |
| Watermoor Properties Limited | Real estate | 2015 |
| WBG Environmental Limited | Water & waste | 2026 |
| WBG Facilities Limited | Construction | 2026 |
| Webster Removals Ltd | Transport & logistics | 2022 |
| Welsh Sea Foods Ltd | Wholesale & retail | 2009 |
| West Kite Ltd | Other services | 2022 |
| West Wales Care Limited | Health & social care | 2005 |
| West Wales Estate Management Limited | Real estate | 2023 |
| West Wales Leisure Ltd | Construction | 2025 |
| West Wales Marine Limited | Manufacturing | 2017 |
| West Wales Motor Cycles Ltd | Wholesale & retail | 2011 |
| West Wales Scaffolding Hire Ltd | Other services | 2017 |
| West Wales Tuning Limited | Manufacturing | 2021 |
| Western Data Ltd | Administrative & support | 2016 |
| Western Recruitment Ltd | Administrative & support | 2023 |
| Western Rock Aggregates Ltd | Mining & quarrying | 2019 |
| Westshore Capital Ltd | Hospitality | 2012 |
| Whaymans Amusements & Catering Limited | Hospitality | 2018 |
| White & Briton Carpet Centre Limited | Wholesale & retail | 1997 |
| Whitecross Project Services Ltd | Professional & scientific | 2024 |
| Wild Gray Limited | Extraterritorial | 2017 |
| Wilkins Black Holdings Ltd | Other services | 2023 |
| Windjammer Marine Limited | Manufacturing | 2012 |