| Patrick Properties Walsall Holdco Limited | Financial services | 2019 |
| Patrick Properties Walsall Limited | Financial services | 2019 |
| Patrick Properties Warrington Holdco Limited | Financial services | 2021 |
| Patrick Properties Warrington Limited | Real estate | 2021 |
| Patrick Properties Winsford Limited | Real estate | 2013 |
| Patrick Properties Yorkshire LLP | | 2008 |
| Patterson Bowe Ltd | Extraterritorial | 2008 |
| Paul Carter Engineering Ltd | Administrative & support | 2015 |
| Paul Compton Consultant Engineer Limited | Professional & scientific | 2024 |
| Paul Consultancy Limited | Administrative & support | 2017 |
| Paul Cotter Optical Supplies Limited | Wholesale & retail | 2004 |
| Paul Court Maintenance Company (Stockport) Limited | Households | 2008 |
| Paul Hunter Consulting Limited | Professional & scientific | 2021 |
| Paul Lavery Consulting Services Limited | Professional & scientific | 2020 |
| Paul Rowlandson Engineering Limited | Professional & scientific | 2016 |
| Paul Steane Engineering Limited | Professional & scientific | 2018 |
| Paul White Industrial Roofing Limited | Construction | 2017 |
| Pauls Floors (of Sale) LLP | | 2012 |
| Paused Perception Ltd | Professional & scientific | 2021 |
| Pavel T Safety Limited | Professional & scientific | 2023 |
| Pavillion (Church Walk) Management Company Limited | Households | 2018 |
| PAY What YOU Want Legal Limited | Professional & scientific | 2021 |
| PAY4BAY Ltd | Information & communication | 2010 |
| Paydock Holdings UK Limited | Financial services | 2020 |
| Paydock Ltd | Information & communication | 2019 |
| Paydock Nominees Ltd. | Professional & scientific | 2024 |
| PAYL8R One Limited | Financial services | 2021 |
| Payquest Group Limited | Administrative & support | 2010 |
| Payroll Solutions International UK Ltd | Professional & scientific | 2018 |
| Payroll UN Limited | Administrative & support | 2024 |
| Paystream Accounting Services Limited | Information & communication | 2011 |
| Paystream Limited | Extraterritorial | 2022 |
| Paystream My MAX 3 Limited | Administrative & support | 2011 |
| Paystream My MAX Holdings Limited | Financial services | 2011 |
| Paystream Secretarial Limited | Administrative & support | 2003 |
| PBC Digital Limited | Financial services | 2022 |
| PBC Security Trustee Limited | Financial services | 2022 |
| Pbmd Aerospace Ltd | Professional & scientific | 2023 |
| PC Business Consulting Ltd | Professional & scientific | 2012 |
| PC Express Limited | Information & communication | 2016 |
| PC Surveys Ltd | Professional & scientific | 2017 |
| Pcarbon Bidco Limited | Financial services | 2022 |
| Pcarbon Topco Limited | Financial services | 2022 |
| PCD Pembrokeshire Limited | Real estate | 2003 |
| PCM Partnership LP | | 2010 |
| PCR MAX Limited | Professional & scientific | 2013 |
| PCS1 Services Limited | Professional & scientific | 2021 |
| Pcsuk Ltd | Transport & logistics | 2013 |
| PCV Medics Ltd | Health & social care | 2014 |
| PD Investments (Newcastle) Ltd | Hospitality | 2019 |
| PD Squared Limited | Information & communication | 1992 |
| PDC Recruitment Limited | Administrative & support | 2019 |
| PDC Technology Limited | Professional & scientific | 2010 |
| Pdja Ltd | Administrative & support | 2021 |
| PDLM2 Limited | Professional & scientific | 2022 |
| PDV Dentaux Ltd | Health & social care | 2025 |
| PEA Tsar Limited | Administrative & support | 2024 |
| Peach Bank Management Company Limited | Households | 1993 |
| Peach Clinic Ltd | Health & social care | 2019 |
| Peachy Clean Liverpool Ltd | Administrative & support | 2022 |
| Peak Air Conditioning Ltd | Construction | 2006 |
| Peak Potential Educational Services Ltd | Education | 2026 |
| Peak Properties Partnership Ltd | Real estate | 2024 |
| Peaknine Residents Association Limited | Households | 1984 |
| Pear Oak Properties Ltd | Real estate | 2016 |
| Pearl Commissioning Services Limited | Administrative & support | 2022 |
| Pearlane Estates Limited | Construction | 1976 |
| Pearson Mooney Properties Ltd | Real estate | 2023 |
| Peckett Properties Ltd | Construction | 2026 |
| Peers Properties Ltd | Real estate | 2021 |
| Pefb Advisory Limited | Professional & scientific | 2025 |
| Pegasus Dental Supplies Limited | Extraterritorial | 1989 |
| Pelete Limited | Administrative & support | 2009 |
| Pelham Advisors Limited | Professional & scientific | 2017 |
| PEM Mechanical Limited | Administrative & support | 2014 |
| Penarth Court RTM Company Limited | Households | 2025 |
| Penelope Health Ltd | Information & communication | 2026 |
| Penelope Palm Properties Limited | Real estate | 2021 |
| Penenden Limited | Professional & scientific | 2017 |
| Penlan Public Finance Limited | Professional & scientific | 2024 |
| Penlyon Electrical Limited | Wholesale & retail | 1993 |
| Penneywise Paving & Landscapes Limited | Administrative & support | 2015 |
| Pennine Property Partnership LLP | | 2011 |
| Pennyscroft Estates Limited | Real estate | 2021 |
| Pentagon HS Limited | Real estate | 2009 |
| Pentelic Development Co. | Real estate | 1964 |
| Penwith Properties Construction Ltd | Construction | 2013 |
| Peoples Oriented Services Limited | Manufacturing | 2003 |
| Peoplesync Limited | Professional & scientific | 2025 |
| Peppy Investment Holdings Ltd | Financial services | 2025 |
| Perbio Science UK Limited | Other services | 1973 |
| Percival Lane Fraser Homes Limited | Construction | 2024 |
| Perfect Apartments Ltd | Real estate | 2019 |
| Perfect Events of Cheshire Ltd | Wholesale & retail | 2012 |
| Perfect Weddings Manchester Limited | Wholesale & retail | 2023 |
| PERFUMES-4U Limited | Wholesale & retail | 2007 |
| Perks of the JOB Limited | Professional & scientific | 2023 |
| Perllan Solutions Limited | Professional & scientific | 2016 |
| Perrarus Ventures Limited | Information & communication | 2022 |
| Perricone MD Cosmeceuticals UK Limited | Wholesale & retail | 2008 |