| Perpetual Guardian UK Ltd | Professional & scientific | 2016 |
| Perrys Bar Limited | Hospitality | 2024 |
| Persona (North West) Limited | Hospitality | 1998 |
| Perzylo Consulting Limited | Professional & scientific | 2023 |
| Peter Street Centre Limited | Administrative & support | 2008 |
| Peterst Transport Ltd | Transport & logistics | 2019 |
| PF Management Limited | Administrative & support | 2022 |
| Pfib Ltd | Wholesale & retail | 2020 |
| PFP Inspections Limited | Construction | 2024 |
| PG Star Properties Limited | Real estate | 2024 |
| PG Trips Limited | Transport & logistics | 2024 |
| PGK Home Solutions Ltd | Construction | 2018 |
| Pharma Prime Supplies Ltd | Wholesale & retail | 2025 |
| PHB Developments Ltd | Construction | 2020 |
| Philip Harris Manufacturing Limited | Administrative & support | 2010 |
| Philip Ryan Limited | Professional & scientific | 1992 |
| Phoenix Housing Limited | Real estate | 2026 |
| Phoenix Northwest Limited | Real estate | 2017 |
| PHONES2LAPTOPS Ltd | Wholesale & retail | 2017 |
| PHS Roofing Services Limited | Construction | 2026 |
| Piano Cafe Inc Ltd | Hospitality | 2023 |
| Piano Cafe ST Helens Limited | Hospitality | 2026 |
| PIC Specialist Sails Limited | Health & social care | 2023 |
| Picasa Ltd | Wholesale & retail | 2018 |
| Pichagraph Ltd | Professional & scientific | 2022 |
| PIER4 Ltd | Wholesale & retail | 2026 |
| Pikes Lane Healthcare Limited | Wholesale & retail | 2025 |
| Pilates Teacher Training Limited | Health & social care | 2024 |
| Pilch Lane Healthcare Limited | Wholesale & retail | 2024 |
| Pilkington Employees Trustee (NO. 1) Limited | Health & social care | 1974 |
| Pilkington Employees Trustee (NO. 2) Limited | Health & social care | 1974 |
| Pilkington Retirement Services Limited | Health & social care | 1990 |
| Pimbletts Bakery & Confectionery Ltd | Hospitality | 2021 |
| Pink Rose Properties NW Ltd | Real estate | 2024 |
| Pinkpanther Cuisine Ltd | Hospitality | 2026 |
| Pinpoint Property Services Ltd | Real estate | 2022 |
| Pitter Patter Tots Limited | Health & social care | 2022 |
| Pixel Play Lounge Ltd | Arts & recreation | 2025 |
| PIY Ribbons UK Limited | Manufacturing | 2008 |
| Pizza Place ST Helens Limited | Hospitality | 2025 |
| PJH Consulting Limited | Professional & scientific | 2023 |
| PJH Contract Management Ltd | Real estate | 2025 |
| PK Secure Ltd | Information & communication | 2018 |
| Pkes Logistics Limited | Transport & logistics | 2021 |
| Pkes Properties Limited | Administrative & support | 2015 |
| PKW Accounting Ltd | Professional & scientific | 2013 |
| Pl-Autotek Limited | Wholesale & retail | 2018 |
| Placenta Plus UK Limited | Manufacturing | 2021 |
| Planetree Asset Management Limited | Administrative & support | 2013 |
| Plastech Control Systems Limited | Manufacturing | 1994 |
| Plastikos Ltd | Health & social care | 2018 |
| Plateless Ltd | Wholesale & retail | 2022 |
| Platinum Lettings and Students Accommodation Ltd | Real estate | 2013 |
| Platinum Panel Systems Ltd | Construction | 2018 |
| Playdrop Limited | Information & communication | 2020 |
| Playlio Ltd | Wholesale & retail | 2025 |
| PLD Property Limited | Real estate | 2022 |
| Pliko Limited | Transport & logistics | 2025 |
| PLT Ice Wall Insulation Limited | Construction | 2024 |
| Plug & Play Electrics Ltd | Manufacturing | 2024 |
| PM Plumbing Limited | Construction | 2023 |
| PMB Web Solutions Ltd | Information & communication | 2012 |
| PMC Investments Limited | Financial services | 2023 |
| Pmma ANP Ltd | Health & social care | 2022 |
| PMR Siteworks Ltd | Construction | 2014 |
| PN Site Services Limited | Construction | 2021 |
| PNW Controls Ltd | Professional & scientific | 2019 |
| Pocket Laser Removal Clinic Ltd | Other services | 2025 |
| Polar Inc Ltd | Manufacturing | 2025 |
| Polar Security Consultants Limited | Administrative & support | 2013 |
| Polaris Freight Limited | Transport & logistics | 2025 |
| Polaris Security Services Ltd | Administrative & support | 2025 |
| Polaris TCG Ltd | Wholesale & retail | 2026 |
| Polished 2 Prefection Ltd | Administrative & support | 2025 |
| Pong & Sky Cafe Limited | Hospitality | 2026 |
| POP54 Ltd | Hospitality | 2025 |
| Porcelain Palace Limited | Manufacturing | 2025 |
| Portable Cabins Limited | Administrative & support | 2002 |
| Portesia Ltd | Real estate | 2026 |
| Portwest Construction Ltd | Construction | 2010 |
| Posh Nails and Beauty (ST) Ltd | Other services | 2023 |
| Power Efficient Solutions Ltd | Manufacturing | 2016 |
| PPR International Limited | Manufacturing | 2000 |
| PR Maintenance & Developments Limited | Construction | 2025 |
| Pr-Brands Ltd | Other services | 2025 |
| PRC Store Ltd | Wholesale & retail | 2025 |
| Predator Consulting Ltd | Professional & scientific | 2015 |
| Premiair Appliances Limited | Wholesale & retail | 2006 |
| Premier Arches Ltd | Manufacturing | 2015 |
| Premier Bespoke Window Shutters Limited | Manufacturing | 2025 |
| Premier Paving & Construction Limited | Construction | 2010 |
| Premier Produce NW Ltd | Wholesale & retail | 2026 |
| Premier Roofline Services Ltd | Construction | 2025 |
| Preptar Ltd | Construction | 2025 |
| Prescot Knitting Company Limited | Wholesale & retail | 1978 |
| Prescott Joinery Limited | Construction | 2002 |
| Prestige Carpets & Furnishing Ltd | Wholesale & retail | 2019 |
| Prestige Investment Holding Ltd | Real estate | 2019 |
| Prestige Skills Ltd | Education | 2017 |
| Prima Property Supplies Limited | Wholesale & retail | 1995 |