| PJE Consultants Limited | Professional & scientific | 1994 |
| Pleasure Inns Limited | Hospitality | 2002 |
| Polly of Aberystwyth Ltd | Wholesale & retail | 2003 |
| Poolman Solutions Ltd | Administrative & support | 2007 |
| R B Farm Services Limited | Construction | 2004 |
| Red DOT Group Ltd | Professional & scientific | 2002 |
| Redi Plastics Limited | Wholesale & retail | 2008 |
| Richards Travel Limited | Real estate | 1962 |
| Riverside Sawmill Limited | Manufacturing | 2004 |
| Robert Eynon & SON Limited | Transport & logistics | 2004 |
| Roman Projects Limited | Professional & scientific | 2003 |
| Rumbleway Caravan Park Limited | Hospitality | 2002 |
| Saundersfoot Bayview Management Company Limited | Real estate | 1990 |
| Searchfan Limited | Real estate | 1999 |
| Solar Wheel Limited | Professional & scientific | 2006 |
| South Carvan Holiday Park Limited | Hospitality | 2002 |
| South Marine Terrace Management Company Limited | Other services | 1988 |
| Steak by Night Tenby Limited | Hospitality | 2011 |
| Surgery Supplies (UK) Limited | Wholesale & retail | 2002 |
| T G Davies (Butchers) Ltd | Wholesale & retail | 2003 |
| T J Lloyd Jones & SON Ltd | Wholesale & retail | 2003 |
| T. Worthington & SON (Properties) Limited | Real estate | 2002 |
| T.J. Electrical Wholesale Limited | Wholesale & retail | 1984 |
| Teifi Autograss Club Limited | Arts & recreation | 1992 |
| Teifi Valley Motor Club Limited | Arts & recreation | 1997 |
| THE Old Pump House (Tenby) Management Limited | Hospitality | 2007 |
| Towy Sand & Gravel Limited | Mining & quarrying | 1981 |
| Trafalgar Stores Limited | Wholesale & retail | 2003 |
| Travel Bonds Limited(The) | | 1983 |
| Trebersed Management Limited | Professional & scientific | 2002 |
| Tregaron Trading Services Limited | Construction | 1999 |
| Truck & BUS Cymru Limited | Wholesale & retail | 1958 |
| Uwch Y Nant 1966 Limited | Extraterritorial | 2013 |
| Venus Retail PVT Ltd | Wholesale & retail | 2025 |
| Victoria Bookshop Limited | Administrative & support | 1998 |
| W.P. Lewis & SON Limited | Extraterritorial | 1980 |
| Walter Lloyd & SON Limited | Wholesale & retail | 1995 |
| Wdmcc UK Ltd | Administrative & support | 2014 |
| Well Park Caravans Limited | Agriculture & fishing | 2002 |
| Welsh Bride Limited | | 1979 |
| West to West (Caravan Sales) Limited | Wholesale & retail | 1999 |
| West Wales Properties Limited | Construction | 2004 |
| Willow Green Kennels Limited | Agriculture & fishing | 2005 |
| Window on Wales Limited | Wholesale & retail | 1999 |
| Y-Fron Leisure Limited | Hospitality | 2002 |