| Passenger Plus Ltd | Transport & logistics | 2012 |
| Password One Limited | Information & communication | 2023 |
| Patak Property Limited | Real estate | 2026 |
| Patel's VEG and More Ltd | Wholesale & retail | 2025 |
| Patrex Ltd | Transport & logistics | 2019 |
| Patricia Gregory Investments Limited | Real estate | 2016 |
| Patron Security Ltd | Administrative & support | 2010 |
| Patten Services Limited | Construction | 2016 |
| Patts Carpentry Limited | Construction | 2022 |
| Paul Alexander Smith Holdings Limited | Financial services | 2025 |
| Paul Barr Plumbing & Heating Services Ltd | Construction | 2008 |
| Paul Browne Homes Holdings Limited | Financial services | 2023 |
| Paul Browne Homes Limited | Construction | 2005 |
| Paul Kent Heating Ltd | Construction | 2026 |
| Paul Lansdell Construction Ltd | Construction | 2024 |
| Paul Lawrence Ltd | Professional & scientific | 2026 |
| Paul Massey Associates Limited | Health & social care | 2001 |
| Paul Massey Properties Ltd | Real estate | 2004 |
| Paul Newman Building Ltd | Construction | 2023 |
| Paul Parsley & Wife Ltd | Other services | 2021 |
| Paul Pilcher Limited | Construction | 2003 |
| Paul Plumb and Heating Ltd | Construction | 2023 |
| Paul Stevens Electrical Contractors Limited | Construction | 2002 |
| Paul Tann Limited | Construction | 2005 |
| Paul White Holdings Ltd | Administrative & support | 2012 |
| Paulett Retail Limited | Wholesale & retail | 2012 |
| Pauls Shoe and Key Supplies Ltd | Wholesale & retail | 2013 |
| Paun&Sons Ltd | Transport & logistics | 2025 |
| Pause 2 Reset Ltd | Health & social care | 2022 |
| PAV Surfacing Ltd | Construction | 2014 |
| Pave NUE Limited | Wholesale & retail | 2023 |
| Pavonia Limited | Information & communication | 2021 |
| PAW & Order Ltd | Other services | 2025 |
| PAW Academy Ltd | Other services | 2025 |
| Paws Claws and More Ltd | Other services | 2016 |
| Paws of Bath Limited | Wholesale & retail | 2023 |
| Paxton & SON (Estates) Ltd | Real estate | 2024 |
| Payne Facades Ltd | Construction | 2018 |
| Payne's Welding Ltd | Manufacturing | 2018 |
| Paynes Field Park Management Company Limited | Households | 1992 |
| Pazoeme IT Solutions Limited | Other services | 2014 |
| Pazoeme Properties Limited | Real estate | 2021 |
| PB Construction South East Limited | Construction | 2022 |
| PB Yacht Contractors Ltd | Other services | 2024 |
| PB08 Haulage Ltd | Transport & logistics | 2021 |
| Pbga Publishing Limited | Administrative & support | 2016 |
| PBS Professionals Ltd | Health & social care | 2020 |
| Pbtl Ltd | Real estate | 2021 |
| PC Globe Ltd | Wholesale & retail | 2003 |
| PC Marketing Ltd | Information & communication | 2023 |
| PC Media Consulting Limited | Information & communication | 2021 |
| Pcash Healthcare Limited | Health & social care | 2018 |
| PCC Services Limited | Financial services | 2025 |
| PCM Design Ltd | Professional & scientific | 2022 |
| Pcmc Accountants Limited | Professional & scientific | 2006 |
| PCS Electrical Limited | | 2003 |
| PCZ Consulting Limited | Professional & scientific | 2008 |
| PDB Technology Ltd | Financial services | 2022 |
| PDC Projects Ltd | Construction | 2015 |
| PDS Rail Ltd | Construction | 2022 |
| PDY Systems Limited | Manufacturing | 2025 |
| Peaceful Roots Property Group Ltd | Real estate | 2026 |
| Peachey Capital Holdings Ltd | Financial services | 2025 |
| Peachville Platinum UK Ltd | Administrative & support | 2022 |
| Peachy Group Limited | Construction | 2019 |
| Peacock Construction Limited | Construction | 1992 |
| Pear Tree & Co. Audiology Ltd | Wholesale & retail | 2025 |
| Pearl Print Management Limited | Manufacturing | 2005 |
| Pearl Project Investments Limited | Professional & scientific | 2008 |
| Pearl Rocks Productions Ltd | Arts & recreation | 2022 |
| Pearsonnorton Ltd | Hospitality | 2025 |
| Pebble Cottage 3 Limited | Real estate | 2024 |
| Pebble Rebels Ltd | Wholesale & retail | 2026 |
| Pebbles Mortgage & Protection Limited | Financial services | 2016 |
| Pebe Active Limited | Wholesale & retail | 2018 |
| Peckwater Consulting Services Limited | Professional & scientific | 2014 |
| Peculiar Breed Care Ltd | Health & social care | 2024 |
| Peerji Design & Development Construction Ltd | Construction | 2026 |
| Pegasus Precision Limited | Manufacturing | 2006 |
| Pegmata Limited | Construction | 2013 |
| Pei-Genesis (U.K.) Limited | Manufacturing | 1996 |
| Pelverers Farmstead Management Company Limited | Households | 2022 |
| Pemberley Design Ltd | Wholesale & retail | 2019 |
| Pemberley Project Management and Maintenance Ltd | Construction | 2023 |
| Pemberton Close Residents Company Limited | Administrative & support | 2008 |
| Pencil Box Ltd | Education | 2019 |
| Penenden Heath Developments Limited | Construction | 2011 |
| Penenden Heath Holdings Limited | Financial services | 2022 |
| Penistone Gourmet Catering Limited | Hospitality | 2018 |
| Penney Services Limited | Transport & logistics | 2025 |
| Pennypot Dental (South East) Limited | Health & social care | 2026 |
| Pennypot Dental Practice Ltd | Health & social care | 2010 |
| Pennypot Developments Ltd | Real estate | 2024 |
| People Craft Consultancy Ltd | Education | 2022 |
| People Credit Limited | Information & communication | 2026 |
| People First HR Consultancy Ltd | Professional & scientific | 2020 |
| Peppercorn Pubs Limited | Hospitality | 2024 |
| Pepr Limited | Hospitality | 2026 |
| Pepv Limited | Professional & scientific | 2025 |
| Perception Accounting Limited | Professional & scientific | 2019 |