| Pdsc Lifting Limited | Construction | 2015 |
| Peak Assessment Centre Limited | Education | 2023 |
| Peak Plumbing and Heating Ltd | Construction | 2022 |
| Pegasus Paraplanning Limited | Financial services | 2022 |
| Pegasus Wealth Limited | Financial services | 2024 |
| Pelham House Lewes Limited | Hospitality | 2018 |
| Pelin Savas Ltd | Professional & scientific | 2014 |
| Pembroke Wealth Management Limited | Financial services | 2018 |
| PEN Kebab Ltd | Hospitality | 2023 |
| PEN Y Gardden Limited | Professional & scientific | 2017 |
| PEN Y Gardden Property Limited | Households | 2020 |
| PEN Y LAN Plumbing Limited | Other services | 2007 |
| PEN Y Palmant Limited | Real estate | 2024 |
| Pen-Y-Lan Game Ltd | Agriculture & fishing | 2018 |
| Pen-Y-Lan Pork Limited | Manufacturing | 2006 |
| Penddol Farm Llangollen Limited | Hospitality | 2024 |
| Pendine Park Care Organisation Ltd | Health & social care | 2009 |
| Penketh Health Limited | Health & social care | 2019 |
| Penley Mill Classic Cars Limited | Manufacturing | 2025 |
| Penley Mill Garage Limited | Wholesale & retail | 2003 |
| Pennell-Tutill Ltd | Arts & recreation | 2020 |
| Pennell-Tutill Performing Arts Ltd | Arts & recreation | 2024 |
| Pennington Services (Wrexham) Limited | Construction | 2011 |
| Penny Rowboat Limited | Real estate | 2020 |
| Penrhos Bike Track Limited | Other services | 2025 |
| Penycae Football Club C.I.C. | Arts & recreation | 2019 |
| Penygelli Care Homes Limited | Health & social care | 2015 |
| Penyworth Ltd | Wholesale & retail | 2022 |
| People LAB Consulting Ltd | Professional & scientific | 2025 |
| Perfect Cruises Ltd | Administrative & support | 2018 |
| Perfect Medical Supplies Ltd | Manufacturing | 2018 |
| Perfect Practice Marketing Limited | Extraterritorial | 2023 |
| Performance Civils Ltd | Construction | 2015 |
| Performance Property Developments Limited | Construction | 2019 |
| Period Builders Ltd | Construction | 2008 |
| Perkins and Simon Partnership Ltd | Other services | 2021 |
| Person Centred Care Matters Limited | Health & social care | 2025 |
| Petcor Limited | Manufacturing | 2008 |
| Peter Gwyn's Quality Potatoes Limited | Wholesale & retail | 2000 |
| Peter W Jones Limited | Professional & scientific | 2013 |
| Petsave (Wrexham) Limited | Wholesale & retail | 2000 |
| Pettitt Limited | Wholesale & retail | 2002 |
| PG Homes Limited | Construction | 2017 |
| Pharma ENG Projects Limited | Professional & scientific | 2020 |
| Pharma Process Solutions Ltd | Other services | 2015 |
| Pharmatec Solutions Ltd | Professional & scientific | 2019 |
| Phatboys Wrexham Limited | Hospitality | 2026 |
| Phlogr Retail Ltd | Wholesale & retail | 2024 |
| Phoenix Health and Fitness Group Ltd | Health & social care | 2020 |
| Phoenix Homecare and Support Ltd | Health & social care | 2013 |
| Phoenix Plastering Services (NW) Ltd | Construction | 2023 |
| Phoenix Powder Coating (NW) Limited | Professional & scientific | 2021 |
| Phoenix Smart Services Ltd | Wholesale & retail | 2023 |
| Phone Doctor (Wrexham) Limited | Wholesale & retail | 2012 |
| Pickard Metallurgical Services Ltd | Professional & scientific | 2007 |
| Pickle and Partners Ltd | Hospitality | 2025 |
| Pickles Pest Control Limited | Administrative & support | 2025 |
| Pier 3 Limited | Hospitality | 2009 |
| Pike Developments Limited | Construction | 1980 |
| Pike Estates Ltd | Real estate | 2025 |
| Pikel Ltd | Information & communication | 2025 |
| Pilot House Co. Limited | Households | 1966 |
| Pine Cliffs Limited | Financial services | 2021 |
| Pine&Stone Properties Ltd | Construction | 2025 |
| Pinefold Limited | Health & social care | 1986 |
| Pinewood Healthcare Limited | Wholesale & retail | 2012 |
| Pink Rinse DOT COM Limited | Other services | 2019 |
| Pink Rinse Limited | Other services | 2019 |
| Pink Taxi Wrexham Ltd | Transport & logistics | 2021 |
| Pinnacle Building Solutions NW Ltd | Construction | 2022 |
| Pinnacle Harnesses Ltd | Manufacturing | 2019 |
| Pinnacle Sport Ltd | Arts & recreation | 2024 |
| PIP Collection Ltd | Wholesale & retail | 2025 |
| Pisc Ltd | Education | 2025 |
| Pistachio Consulting CYF | Administrative & support | 2026 |
| Pivotal Sound & Lighting Ltd | Administrative & support | 2018 |
| Pizzano Ltd | Hospitality | 2025 |
| PJ & E Solutions Ltd | Professional & scientific | 2022 |
| Pj's Nail Vault Ltd | Other services | 2023 |
| PJB Quality Services Limited | Professional & scientific | 2013 |
| Pjmr DOM Ltd | Real estate | 2019 |
| Pjmr Trans Ltd | Transport & logistics | 2017 |
| Pjwg Services Limited | Professional & scientific | 2019 |
| PKG Techtrade Solutions Ltd | Information & communication | 2024 |
| Placeholders Worldwide Ltd | Wholesale & retail | 2026 |
| Planar International Ltd | Wholesale & retail | 2018 |
| Planetvape Limited | Wholesale & retail | 2019 |
| Plas Kynaston Management Company Limited | Real estate | 2017 |
| Plas Minffordd Education Ltd | Manufacturing | 2025 |
| Plasnets Solutions Ltd | Wholesale & retail | 2015 |
| Plastef Limited | Transport & logistics | 2025 |
| Plastipak UK Ltd | Manufacturing | 2015 |
| Platinum Consulting Europe Ltd | Construction | 2007 |
| Platinum Designs Ltd | Information & communication | 2015 |
| Platinum GAS Ltd | Construction | 2018 |
| Platinum Home and Rental Ltd | Real estate | 2023 |
| Plato Training (UK) Ltd | Education | 2008 |
| Platts Commercial Services Ltd | Wholesale & retail | 2020 |
| Platts Transport Limited | Transport & logistics | 2021 |
| Play-Tech Solutions Ltd | Administrative & support | 2023 |