| Peter Littlewood Associates Limited | Professional & scientific | 2011 |
| Peter Madden Ltd | Hospitality | 2015 |
| Peter Simpson Consulting Ltd | Professional & scientific | 2022 |
| Pexall Service Station Limited | Wholesale & retail | 1960 |
| Pexhill Promotions Ltd | Real estate | 2025 |
| Pfleiderer UK Limited | Wholesale & retail | 1977 |
| Pfpnet E-Tech Ltd | Professional & scientific | 2024 |
| Pfpnet Limited | Professional & scientific | 2017 |
| PFR Consulting Ltd | Health & social care | 2022 |
| Pfrc Ltd | Health & social care | 2022 |
| PFW Events Limited | Administrative & support | 2021 |
| Pharma Events Limited | Administrative & support | 2013 |
| Phase Flip Live Productions Ltd | Arts & recreation | 2023 |
| PHD Pigeon Ltd. | Professional & scientific | 2016 |
| Phenomenex Limited | Wholesale & retail | 1987 |
| Phhl Limited | Professional & scientific | 2000 |
| Phil Thomas Tech Ltd | Information & communication | 2025 |
| Philip Homes Limited | Construction | 2017 |
| Phirho Technologies Ltd | Manufacturing | 2024 |
| Phlebotomy Association Ltd | Other services | 2025 |
| Phlip Limited | Information & communication | 2009 |
| Phoebus Finance SA Ltd | Professional & scientific | 2025 |
| Phoebus SA Ltd | Wholesale & retail | 2025 |
| Phoenix Analytical Services Limited | Manufacturing | 2000 |
| Phoenix Pet & Home Services Ltd | Other services | 2024 |
| Phoenix Supply Chain Management Limited | Information & communication | 2016 |
| Photo Land Limited | Professional & scientific | 1986 |
| PHP North West Limited | Professional & scientific | 2013 |
| Physiotherapy & Complementary Therapies Ltd | Professional & scientific | 2017 |
| Phytoactive Ltd | Health & social care | 2026 |
| Piacs Ltd | Manufacturing | 2023 |
| Picante (North West) Ltd | Hospitality | 2024 |
| Picart Corporation Limited | Professional & scientific | 1999 |
| Pickering Engineering Design Limited | Professional & scientific | 1986 |
| Pickering Property Holdings Ltd | Real estate | 2024 |
| Pickup Labs Limited | Information & communication | 2023 |
| Pier Capital Investments Limited | Real estate | 2012 |
| Piers Henry Ltd | Manufacturing | 2021 |
| Pikehall Farming Limited | Agriculture & fishing | 2019 |
| Pillettieri Investments Ltd | Financial services | 2020 |
| Pine Cliffs Consulting Ltd | Professional & scientific | 2018 |
| Pine Garden Services Ltd | Administrative & support | 2020 |
| Piner Homes Ltd | Construction | 2017 |
| Pink Gloves Ltd | Administrative & support | 2026 |
| Pink Nails Macclesfield 54 Ltd | Other services | 2025 |
| Pink Pepper Kitchen Ltd | Wholesale & retail | 2017 |
| Pink Rain Lilies Ltd | Wholesale & retail | 2025 |
| Pinnacle Construction Professionals Ltd | Professional & scientific | 2022 |
| Pinnacle Funding Solutions Ltd | Administrative & support | 2024 |
| Pinnacle Mangement Limited | Real estate | 2024 |
| Pinnacle Systems Ltd | Administrative & support | 2022 |
| Pinto Hervia Limited | Wholesale & retail | 2022 |
| Piperpharma Limited | Professional & scientific | 2008 |
| Pipi Homes Ltd | Real estate | 2021 |
| Pirtek (UK) Limited | Administrative & support | 1988 |
| Pirtek Europe Limited | Professional & scientific | 1996 |
| Pista Capital Limited | Professional & scientific | 2021 |
| PIT Barriers & Fencing Ltd | Manufacturing | 2025 |
| PIT Barriers Ltd | Manufacturing | 2025 |
| Pittari INT Ltd | Wholesale & retail | 2025 |
| Pivotal Statistics Ltd | Professional & scientific | 2017 |
| Pixel Thermographics Limited | Administrative & support | 2007 |
| Pizzaz Macc Limited | Hospitality | 2025 |
| Pjhw Consultancy Ltd | Professional & scientific | 2016 |
| PJS Agri Plant Services Ltd | Administrative & support | 2018 |
| PJS Facilities Management Ltd | Construction | 2025 |
| Plan B Talent Ltd | Administrative & support | 2024 |
| Planning Logistics and Consultancy Services Ltd | Professional & scientific | 2021 |
| Plantagenet Services Ltd | Professional & scientific | 2026 |
| Plastering Stagg Ltd | Construction | 2024 |
| Plastics Limited | Professional & scientific | 2003 |
| Plateau Financial Limited | Professional & scientific | 2012 |
| Platine Solutions Limited | Professional & scientific | 2007 |
| Platinum Accountancy Services Limited | Professional & scientific | 2019 |
| Platinum Contact Centre Recruitment Ltd | Administrative & support | 2015 |
| Platinum Financial Recruitment Ltd | Administrative & support | 2009 |
| Platinum HR Recruitment Ltd | Administrative & support | 2015 |
| Platinum Legal Recruitment Ltd | Administrative & support | 2015 |
| Plaz-Tec Ltd | Wholesale & retail | 2020 |
| PLC Property Partners Limited | Construction | 2025 |
| Plixxent Holding UK Limited | Manufacturing | 2021 |
| PLS Advisory Limited | Professional & scientific | 2014 |
| Plug Marketing Limited | Professional & scientific | 2010 |
| Plumb-Rite Plumbing Solutions Ltd | Construction | 2021 |
| Plutushane Ltd | Wholesale & retail | 2026 |
| PLY (North West) Limited | Hospitality | 2021 |
| PLY Leisure Ltd | Hospitality | 2021 |
| Pmanios Consulting Engineers Limited | Construction | 2024 |
| PMC 1970 Ltd | Other services | 2021 |
| PMD3 Consulting Limited | Information & communication | 2014 |
| PME Network Solutions Ltd | Information & communication | 2020 |
| Podia Limited | Information & communication | 2002 |
| Poem Consultancy Limited | Professional & scientific | 2026 |
| Poetic License Ltd | Wholesale & retail | 2018 |
| Point Construction and Maintenance Limited | Construction | 2017 |
| Point to Point Solutions Limited | Transport & logistics | 2006 |
| Poketomo Ltd | Wholesale & retail | 2025 |
| Polaris Shipping Solutions Ltd | Transport & logistics | 2025 |
| Polarlens Limited | Wholesale & retail | 2018 |
| Policy NOW Ltd | Information & communication | 2026 |