| Phil Lewis Advisory NOW Ltd | Information & communication | 2024 |
| Philip M Lewis & Company Ltd | Professional & scientific | 2002 |
| Phillips Welding Limited | Manufacturing | 2025 |
| Phoenix Commercial Property Limited | Real estate | 2023 |
| Phoenix MEP Consult Limited | Professional & scientific | 2023 |
| Phoenix Safe Storage Ltd | Transport & logistics | 2026 |
| Pioneer Equipment Rental Ltd | Administrative & support | 2025 |
| Pipeability Ltd | Construction | 2024 |
| Pitch Roofer Limited | Construction | 2019 |
| Pizza Milano (Swansea) Ltd | Hospitality | 2024 |
| Pizza Paradise Pontrhydyfen Ltd | Hospitality | 2024 |
| Pizza Station Road Ltd | Hospitality | 2019 |
| Plant Hoppa Limited | Extraterritorial | 2010 |
| Plantful Wholefoods Ltd | Wholesale & retail | 2026 |
| Platinum CAB Ltd | Transport & logistics | 2025 |
| Play My Way Limited | Professional & scientific | 2023 |
| Plframe Ltd | Professional & scientific | 2025 |
| Plus 1 Tutor Limited | Education | 2024 |
| PMN Property and Investments Ltd | Real estate | 2021 |
| Pock Stop Ltd | Hospitality | 2026 |
| Pokemon Gems Ltd | Wholesale & retail | 2026 |
| Port Pizza Ltd | Hospitality | 2024 |
| Port Road (Wenvoe) Ltd | Construction | 2026 |
| Port Spice Limited | Hospitality | 2020 |
| Port Talbot Amateur Boxing Club | Arts & recreation | 2016 |
| Port Talbot and Afan Women's AID | Health & social care | 1992 |
| Port Talbot Barbell Club Ltd | Arts & recreation | 2023 |
| Port Talbot Barbers Ltd | Other services | 2024 |
| Port Talbot Brickwork Holdings Limited | Financial services | 2008 |
| Port Talbot Brickwork Limited | Construction | 2005 |
| Port Talbot Pizza Ltd | Hospitality | 2023 |
| Port Talbot Primary Care Resource Centre Management Company Limited | Health & social care | 2009 |
| Port Talbot Town Football Club Limited | Arts & recreation | 2008 |
| Porthcawl Marine, Surf & Skate Ltd | Wholesale & retail | 2023 |
| Possible Pathways C.I.C. | Education | 2021 |
| Power FAB Designs Ltd | Professional & scientific | 2022 |
| Precision Engineered Systems Limited | Professional & scientific | 2026 |
| Prefer Properties Ltd | Real estate | 2019 |
| Premier Builders (Port Talbot) Limited | Construction | 1996 |
| Prima Retail Limited | Wholesale & retail | 2011 |
| Prism Tiling Ltd | Construction | 2022 |
| Pristine Finish Carpentry & Building Ltd | Construction | 2025 |
| Problematic PUB Limited | Other services | 2025 |
| Promaterial Ltd | Manufacturing | 2023 |
| Promise Wedding Fayres Ltd | Administrative & support | 2026 |
| Pronus Ltd | Professional & scientific | 2018 |
| PROP21 Limited | Real estate | 2017 |
| Propdiamond Ltd | Real estate | 2019 |
| Property and Cleaning Services Ltd | Real estate | 2024 |
| Property ME Ltd | Real estate | 2025 |
| Property Photo Hub Ltd | Information & communication | 2024 |
| Proproxies Ltd | Information & communication | 2022 |
| Proqr UK Limited | Public administration | 2009 |
| Proramics Limited | Manufacturing | 2013 |
| Proscan Automotive Ltd | Wholesale & retail | 2021 |
| Proserve Property Care Ltd | Construction | 2021 |
| Prosolar Electrical Ltd | Construction | 2019 |
| Protium Green Hydrogen Supply Ltd | Energy | 2021 |
| Prydie Music Limited | Arts & recreation | 2025 |
| PT Exotic VET Care Ltd | Professional & scientific | 2015 |
| Ptawa Enterprises Ltd. | Administrative & support | 2017 |
| PTB (Holdings) Limited | Financial services | 2013 |
| PTB Properties Limited | Real estate | 2016 |
| Puffin OIL Limited | Manufacturing | 2008 |
| PUP Cuddle Ltd | Wholesale & retail | 2025 |
| Qoya Ltd | Wholesale & retail | 2025 |
| Quality Consulting PT Ltd | Construction | 2022 |
| Quality Educational Solutions and Training Limited | Education | 2018 |
| Quality Recruitment Solutions Ltd | Extraterritorial | 2020 |
| Quantum Computer Aided Design Limited | Professional & scientific | 1995 |
| Quarry Road (Pontypridd) Ltd | Construction | 2021 |
| Quilligan's Roofing & Building Ltd | Construction | 2025 |
| Quodel ( UK ) Limited | Wholesale & retail | 2022 |
| R & R Property Solutions Limited | Real estate | 2017 |
| R Bell Construction Ltd | Construction | 2011 |
| R&P Convenience Store Ltd | Wholesale & retail | 2020 |
| R&S Carpentry Solutions Ltd | Manufacturing | 2025 |
| R-Tech Academy Ltd | Administrative & support | 2025 |
| R-Tech Consultants Limited | Professional & scientific | 2007 |
| R-Tech Holdings Limited | Professional & scientific | 2021 |
| R-Tech Materials Ltd | Professional & scientific | 2017 |
| R-Tech Services Ltd | Professional & scientific | 2002 |
| R.E. Environmental Limited | Professional & scientific | 1996 |
| R.E. Plant Hire Group Limited | Construction | 2025 |
| R.E. Plant Hire Holdings Limited | Construction | 2016 |
| R.E. Plant Hire Limited | Construction | 1974 |
| R.M Sound Design Ltd | Arts & recreation | 2012 |
| Radiator Supermarket Ltd | Wholesale & retail | 2025 |
| Ramptech Limited | Transport & logistics | 2012 |
| RAP Surveys Limited | Wholesale & retail | 2007 |
| Raspberry Creatives Community Events CIC | Arts & recreation | 2023 |
| Ravenswood Global Ltd | Wholesale & retail | 2026 |
| RAW Welsh Honey Ltd | Manufacturing | 2020 |
| RDJ Engineering Services Ltd | Professional & scientific | 2023 |
| RDW Carpentry Ltd | Manufacturing | 2022 |
| Re.Mc Property Limited | Real estate | 2016 |
| Reach for the Sky Limited | Education | 2018 |
| Rebel Sporting Goods Ltd | Wholesale & retail | 2026 |
| Reconto Software Ltd | Information & communication | 2016 |
| Recovery Cardiff Ltd | Health & social care | 2025 |