| Pharmassist (Solutions) Limited | Information & communication | 2013 |
| Philden Projects Limited | Information & communication | 2016 |
| Philip Bannon Plant Hire Limited | Financial services | 2015 |
| Phoenix Healthcare Distribution Limited | Wholesale & retail | 1913 |
| Phoenix Medical Supplies Limited | Wholesale & retail | 1998 |
| Phonexireland Ltd | Professional & scientific | 2025 |
| Picow Engineering Limited | Construction | 1979 |
| Picow Farm MOT Centre Ltd | Wholesale & retail | 2024 |
| Picow Van Hire Ltd | Administrative & support | 2017 |
| Picture in Picture Ltd | Professional & scientific | 2022 |
| Picture This by Niall Ltd | Professional & scientific | 2025 |
| Pink Nails 35 Ltd | Other services | 2025 |
| Pinnington Properties (NW) Ltd | Real estate | 2019 |
| Pinnington Property Maintenance Limited | Administrative & support | 2014 |
| Pivotal Distribution Limited | Wholesale & retail | 2012 |
| PK Sport Limited | Professional & scientific | 1999 |
| PKR Maintenance Limited | Construction | 2023 |
| PKT Transport Ltd | Administrative & support | 2022 |
| Plansys Ltd | Information & communication | 2015 |
| Platinum Roofers Ltd | Construction | 2019 |
| Play by Nature Forest School Ltd | Agriculture & fishing | 2020 |
| Playnation Limited | Arts & recreation | 2012 |
| Plusmoney Limited | Professional & scientific | 1990 |
| Pmadevco Ltd | Construction | 2024 |
| PMJ Partners Limited | Real estate | 2012 |
| Polyflex Packaging Limited | Manufacturing | 1987 |
| Poppadiaz Limited | Other services | 2020 |
| Poppy Blinds Ltd | Manufacturing | 2016 |
| Power Accessories Ltd | Wholesale & retail | 2026 |
| Power in Partnership Limited | Education | 2011 |
| PR Food & Wine Ltd | Wholesale & retail | 2019 |
| Practice Services UK Limited | Administrative & support | 2005 |
| Prarion Limited | Real estate | 2014 |
| Precise Retail Ltd | Wholesale & retail | 2018 |
| Precision Office Space Ltd | Real estate | 2020 |
| Precision Trustee Limited | Administrative & support | 2025 |
| Premier Alarms and Cctv Limited | Administrative & support | 2022 |
| Premier Aquatics Ltd | Wholesale & retail | 2019 |
| Premier Gardening Ltd | Administrative & support | 2020 |
| Premier Professional Lawncare Limited | Agriculture & fishing | 2019 |
| Premier Security Solutions Limited | Administrative & support | 2014 |
| Premium Bar Hire Limited | Hospitality | 2017 |
| Premium Roofing and Property Care Limited | Construction | 2025 |
| Premsec Limited | Administrative & support | 2025 |
| Prestelec Limited | Construction | 2015 |
| Prestige Office Installations Ltd | Wholesale & retail | 2020 |
| Prestige Travel (NW) Ltd | Transport & logistics | 2015 |
| Prestigious Living Ltd | Households | 2018 |
| Pride in Halton CIC | Arts & recreation | 2022 |
| Primacy Healthcare Limited | Manufacturing | 1962 |
| Principal Safety Limited | Professional & scientific | 2026 |
| Priory Property Lettings Ltd | Households | 2024 |
| Prism Chemicals Limited | Manufacturing | 1998 |
| Pro Translations Hub Ltd | Professional & scientific | 2019 |
| Process Control Software Limited | Information & communication | 1995 |
| Professions Broker Limited | Financial services | 2007 |
| Project Jedi Bidco Limited | Professional & scientific | 2019 |
| Project Jedi Topco Limited | Professional & scientific | 2019 |
| Project Management Hub Ltd | Professional & scientific | 2024 |
| Project Management Interface Ltd | Administrative & support | 2024 |
| Property and Electrical Refurb and Invest Ltd | Real estate | 2024 |
| Prosocia Group Limited | Financial services | 2025 |
| Prosocia Limited | Professional & scientific | 2023 |
| Prosociauk Limited | Real estate | 2026 |
| Prospect Inn Hospitality Ltd | Hospitality | 2026 |
| Prowd Ltd | Wholesale & retail | 2024 |
| Prudent Collections Ltd | Wholesale & retail | 2025 |
| PS63MED Ltd | Health & social care | 2015 |
| Pshw Group Limited | Real estate | 2026 |
| Pspc Warrington Ltd | Wholesale & retail | 2019 |
| Psycuity Limited | Professional & scientific | 2007 |
| PT Services Ltd | Manufacturing | 2019 |
| PU Logistics Ltd | Transport & logistics | 2023 |
| Pulse Collective Limited | Wholesale & retail | 2025 |
| Purn-Enterprises Limited | Wholesale & retail | 2015 |
| PVH Properties Ltd | Construction | 2007 |
| PWL Reports Limited | Health & social care | 2017 |
| PXG Pharma UK Limited | Wholesale & retail | 2021 |
| Pyranha Ltd | Manufacturing | 2014 |
| Pyranha Mouldings Limited | Manufacturing | 1974 |
| QED Commercial Services Ltd | Information & communication | 2014 |
| Qualitas Inspection Ltd | Professional & scientific | 2024 |
| Quality Textile Services Limited | Professional & scientific | 1928 |
| Qualsecure Limited | Extraterritorial | 2010 |
| Qualtech Pharma Limited | Professional & scientific | 2013 |
| Quayfuels Ltd | Professional & scientific | 1997 |
| Quigleys Bakery Ltd | Wholesale & retail | 2023 |
| R and L Christmas Trees Ltd | Financial services | 2020 |
| R&R RO Limited | Transport & logistics | 2014 |
| R.J. Lewis Management Services Limited | Construction | 1987 |
| R3STORE Damage Management Ltd | Administrative & support | 2024 |
| RAB Technical Holdings Limited | Financial services | 2024 |
| RAB Technical Services Limited | Professional & scientific | 2019 |
| Railway Helsby Gastro Ltd | Other services | 2017 |
| Rainbow Behavioural Therapies Limited | Health & social care | 2021 |
| Rainhill Developments Limited | Construction | 2023 |
| Rapacious Creative Ltd | Information & communication | 2023 |
| Rapid Rubber Ltd | Wholesale & retail | 2025 |
| Rapid Time Vehicle Deliveries Limited | Transport & logistics | 2022 |
| Raul Spedition Ltd | Transport & logistics | 2018 |