| PAI Limied Limited | Hospitality | 2023 |
| Pain and Wellbeing Conferences Limited | Health & social care | 2026 |
| Paintworks Apartments Limited | Real estate | 2017 |
| Paired Property Limited | Real estate | 2019 |
| PAL Homes Property Ltd | Real estate | 2026 |
| Palace Swansea Limited | Hospitality | 2023 |
| Palais Swansea Ltd | Hospitality | 2026 |
| Paledi Incorporated (UK) LLP | | 2020 |
| Pallet Recycling Services UK Limited | Water & waste | 2008 |
| Pallexpress Transport Limited | Transport & logistics | 2020 |
| Pallipaws Community Interest Company | Professional & scientific | 2024 |
| Palmertech Limited | Administrative & support | 2012 |
| Pamova Cymru General Services Limited | Education | 2007 |
| PAN & Grill Ltd | Hospitality | 2018 |
| Panad Pictures Ltd | Information & communication | 2026 |
| Panda Motors (Swansea) Limited | Wholesale & retail | 1986 |
| Pandora Online Limited | Wholesale & retail | 2020 |
| Panelex UK Limited | Wholesale & retail | 2026 |
| Pangea Healthcare Limited | Other services | 2018 |
| Panoramiccamping&Glamping Ltd | Hospitality | 2021 |
| Pant-Y-Wal Farm Limited | Agriculture & fishing | 2017 |
| Panteg Ground Rents Limited | Real estate | 2021 |
| Pantyrathro Park Management Company Limited | Construction | 1973 |
| Papaji's Limited | Hospitality | 2008 |
| Paperchem Report Limited | Information & communication | 2007 |
| Papermill Saunas Ltd | Administrative & support | 2025 |
| Papermillers Limited | | 1985 |
| Papi's Holdings Ltd | Financial services | 2017 |
| Papi's Mumbles Ltd | Hospitality | 2017 |
| Papi's Uplands Ltd | Hospitality | 2021 |
| Papillion Interiors Limited | Wholesale & retail | 2008 |
| Papur CYF | Wholesale & retail | 2021 |
| Papur Media Ltd | Arts & recreation | 2023 |
| PAR Electrics Limited | Manufacturing | 2014 |
| Paragon Properties (Wales) Ltd | Real estate | 2008 |
| Paraiso Living Ltd | Financial services | 2024 |
| Parallel Dimension Limited | Information & communication | 2007 |
| Parallel Resource Ltd | Professional & scientific | 2025 |
| Parashurama Groups Limited | Hospitality | 2025 |
| Parasma Recruitment Ltd | Construction | 2016 |
| Parc Care Ltd | Health & social care | 2011 |
| Parc Care Property Ltd | Hospitality | 2013 |
| Parc LE Breos Holdings Limited | Professional & scientific | 2011 |
| Parc LE Breos Limited | Hospitality | 2022 |
| Parc LE Breos Properties Limited | Real estate | 2011 |
| Parc LE Breos Trekking Club Limited | Hospitality | 1965 |
| Parc Lofts Advisory Limited | Construction | 2023 |
| Parc Mawr Investments Limited | Real estate | 1960 |
| Parc WEN Management Company Limited | Households | 2001 |
| Parc Y Mynydd Limited | Construction | 2014 |
| Parcell Catering Limited | Hospitality | 2019 |
| Parcyrhedyn Ltd | Health & social care | 2017 |
| Park and Holmes Industrial Supplies Limited | Wholesale & retail | 1980 |
| Park View Post Production Limited | Information & communication | 2026 |
| Parker & Lake Limited | Professional & scientific | 1991 |
| Parkhouse Therapy Ltd | Health & social care | 2022 |
| Parkhouse Trading Limited | Other services | 2013 |
| Parklime Properties Limited | Real estate | 2005 |
| Parkshire Property Ltd | Real estate | 2024 |
| Parkside Apartments Limited | Households | 1989 |
| Parkview Business Holdings Ltd | Professional & scientific | 2025 |
| Parkway Gould LLP | | 2005 |
| Parr Developments Ltd | Information & communication | 2022 |
| Parry Morgan Developments Ltd | Construction | 2021 |
| Parry Renovations Limited | Construction | 2018 |
| Parsa Galaxy Ltd | Hospitality | 2025 |
| Parsons Ward Limited | Hospitality | 2020 |
| Pashira Limited | Professional & scientific | 2021 |
| Pass Property & Development Limited | Construction | 2015 |
| Pass With Billy Limited | Education | 2026 |
| Passflow Limited | Information & communication | 2022 |
| Passive Protect Ltd | Public administration | 2024 |
| Patent Seekers Limited | Professional & scientific | 2006 |
| Pathfinder QS Services Ltd | Professional & scientific | 2024 |
| Patientviewonline Ltd | Health & social care | 2025 |
| Patricks With Rooms Limited | Hospitality | 2003 |
| Patricom Limited | Construction | 2025 |
| Paul Alexander Films Ltd | Information & communication | 2026 |
| Paul Bevan & Associates Limited | Professional & scientific | 2006 |
| Paul Bidder Plastering Ltd | Construction | 2007 |
| Paul Button Payroll & Bookkeeping Ltd | Professional & scientific | 2014 |
| Paul Dyer Financial Services Limited | Financial services | 2017 |
| Paul Ford Accountancy Ltd | Professional & scientific | 2023 |
| Paul Gear Motors Ltd | Wholesale & retail | 2022 |
| Paul Jones Fencing Limited | Construction | 2008 |
| Paul Sullivan Caretaker Ltd | Administrative & support | 2015 |
| Paul Thomas and SON Builders Limited | Construction | 2014 |
| Paul Thomas Contracting Ltd | Administrative & support | 2019 |
| Paul Thorburn Limited | Administrative & support | 2010 |
| Paul Vernon HV SAP Limited | Professional & scientific | 2026 |
| Paul Whitehead (Contractors) Limited | Administrative & support | 2001 |
| Paul.J.T & Co Ltd | Professional & scientific | 2022 |
| Paula Robinson Accountancy Limited | Professional & scientific | 2017 |
| Pavecost Limited | Wholesale & retail | 1979 |
| Paved International Ltd | Wholesale & retail | 2023 |
| Pavepro Direct Ltd | Wholesale & retail | 2025 |
| Paws Dogs Ltd | Other services | 2025 |
| PAWS4ATHOUGHT IT Services Limited | Information & communication | 2012 |
| Paxton Court Management Co. Limited | Hospitality | 1988 |
| Payasudrive Ltd | Wholesale & retail | 2017 |