| Playbook Studios Limited | Professional & scientific | 2013 |
| Playsafe Installations Limited | Construction | 2025 |
| Plcleaning Services Limited | Administrative & support | 2025 |
| PLM Cottages Limited | Hospitality | 2021 |
| PM Global Traders Ltd | Wholesale & retail | 2025 |
| PM Plastering Ltd | Construction | 2022 |
| PMB Landscapes Ltd | Administrative & support | 2012 |
| PMC Systems Design Ltd | Professional & scientific | 2026 |
| PMJ Development & Construction Ltd | Construction | 2021 |
| PMR Global Ltd | Administrative & support | 2024 |
| PMU Academy London Ltd | Wholesale & retail | 2019 |
| PN & K Property Ltd | Real estate | 2023 |
| PNM Construction NW Ltd | Construction | 2024 |
| PNS Property Services Limited | Real estate | 2019 |
| Pobl.Work Ltd | Professional & scientific | 2024 |
| Podski Limited | Wholesale & retail | 2025 |
| Polish Integration Support Centre CIC | Professional & scientific | 2018 |
| Polly Paint Pony Ltd | Information & communication | 2019 |
| Polymath International Ltd | Professional & scientific | 2018 |
| Ponciau Stores Ltd | Wholesale & retail | 2024 |
| Poole Buildings Limited | Real estate | 2025 |
| Poplar Properties (Wrexham) Limited | Real estate | 1976 |
| Poppy Rose Weddings Ltd | Arts & recreation | 2024 |
| Popular Enterprises (Group) Ltd | Financial services | 2024 |
| Popup Picnics Chester Ltd | Hospitality | 2021 |
| Porchland Ltd | Real estate | 2025 |
| Port and Anchor Kitchen Bar Limited | Hospitality | 2024 |
| Portek Limited | Manufacturing | 1987 |
| Portfolio Wines Limited | Professional & scientific | 1986 |
| Portico Properties Ltd | Real estate | 2022 |
| Positive Adoption Limited | Health & social care | 2012 |
| Positive Family Outcomes Limited | Health & social care | 2006 |
| Positive Fostering Limited | Health & social care | 2012 |
| Positive Leap Education Services Limited | Administrative & support | 2025 |
| Postcode Reviews Ltd | Information & communication | 2025 |
| Potato Supplies Limited | Hospitality | 1960 |
| Powells Electrical (Shropshire) Limited | Manufacturing | 2011 |
| Powerzone Gym (Wrexham) Ltd | Arts & recreation | 2023 |
| Powys Contract Lift Solutions Ltd | Construction | 2014 |
| Powys Country Living Limited | Hospitality | 2018 |
| PPA Handyman Limited | Water & waste | 2022 |
| PPC Response Limited | Information & communication | 2011 |
| PPG Projects Limited | Construction | 2017 |
| PPS4U Ltd | Professional & scientific | 2025 |
| PR HMO Ltd | Real estate | 2025 |
| Practical Design Limited | Professional & scientific | 2015 |
| Praetorian Aviation Ltd | Administrative & support | 2016 |
| Precise Design & Build Ltd | Administrative & support | 2008 |
| Precision Cosmetics Limited | Other services | 2021 |
| Precision Services (NW) Limited | Construction | 2016 |
| Premier Cars (Llangollen & Chirk) Limited | Transport & logistics | 2003 |
| Premier Compliance Holding Limited | Financial services | 2025 |
| Premier Motorcycle Care Limited | Other services | 2018 |
| Premier Radio CIC | Information & communication | 2020 |
| Premier Retail Stores Ltd | Wholesale & retail | 2017 |
| Premier Security Installs Limited | Administrative & support | 2007 |
| Premium DRY Fish & Meats Ltd | Wholesale & retail | 2025 |
| Premvision UK Ltd | Information & communication | 2024 |
| Pren Construction Management Ltd | Professional & scientific | 2020 |
| Pren Tech Joinery Limited | Construction | 2026 |
| Preseal Limited | Professional & scientific | 2003 |
| Presentplan Limited | | 1987 |
| Prestige Electrical Services (WXM) Limited | Construction | 2009 |
| Prestige Party Castles Ltd | Administrative & support | 2025 |
| Prestige Rendering Solutions Ltd | Construction | 2022 |
| Preswylfa Limited | Other services | 2010 |
| Price Brothers & Sons Ltd | Other services | 2019 |
| Pride 'UR Ride Limited | Other services | 2015 |
| Pride Wrecsam Limited | Other services | 2024 |
| Primary Quiz Ltd | Education | 2023 |
| Prime Central London Limited | Construction | 2013 |
| Prime Expo Logistics Ltd | Transport & logistics | 2026 |
| Prime Independent Limited | Administrative & support | 2003 |
| Prime Passenger Seating Ltd. | Manufacturing | 2008 |
| Prime Plumbing & Heating North West Ltd | Construction | 2023 |
| Prime Vehicle Interiors Limited | Wholesale & retail | 2020 |
| Primulus Limited | Health & social care | 2002 |
| Princals Limited | Wholesale & retail | 2025 |
| Prism Capital Partners Limited | Financial services | 2025 |
| Pritchard & Properties Limited | Real estate | 2024 |
| Pritchard Accommodation Ltd | Real estate | 2016 |
| Pritchard Property (Lloyds) Ltd | Real estate | 2015 |
| Pritchard Property (Paragon) Ltd | Real estate | 2016 |
| Private Dog Fields Ltd | Arts & recreation | 2026 |
| Prize Bingley Sports and Leisure Limited | Professional & scientific | 2021 |
| Pro Business Wrexham Limited | Extraterritorial | 2013 |
| Pro GAS WXM Ltd | Construction | 2018 |
| Pro Home (WXM) Limited | Real estate | 2021 |
| Pro Outsourcing Ltd | Professional & scientific | 2012 |
| Pro Plumb (WXM) Ltd | Construction | 2015 |
| Pro Property NW Ltd | Real estate | 2025 |
| Pro Rend Plastering Limited | Construction | 2020 |
| Pro Top Roofing and Building Limited | Construction | 2025 |
| Proactive Leisure Solutions Ltd | Education | 2017 |
| Proampac AC UK Ltd. | Manufacturing | 2002 |
| Proampac Advanced Coatings Holdings UK Ltd. | Professional & scientific | 2007 |
| Procare Facilities Group Ltd | Professional & scientific | 2025 |
| Procedure Media Ltd | Information & communication | 2022 |
| Process Consultancy Ltd | Professional & scientific | 2023 |
| Procil Consulting Ltd | Administrative & support | 2013 |