| Phenomenal Fireworks Limited | Arts & recreation | 2005 |
| Phidex Consulting Limited | Professional & scientific | 2011 |
| Phil Osborne Building Ltd | Construction | 2020 |
| Philharmonic Hotel Trading Company Ltd | Hospitality | 2024 |
| Philip Sharrock Transport Limited | Transport & logistics | 2026 |
| Philip Williams Estates Limited | Real estate | 2019 |
| Phill Wilson Consulting Limited | Professional & scientific | 2024 |
| Phocus Limited | Wholesale & retail | 2013 |
| Phoebe Panaretos Ltd | Arts & recreation | 2026 |
| Phoenix Avenues Limited | Real estate | 2024 |
| Phoenix Carpenters Ltd | Construction | 2014 |
| Phoenix Events Services Ltd | Arts & recreation | 2025 |
| Phoenix Global Advisory Group (Old Co) Limited | Professional & scientific | 2011 |
| Phow Holdings Limited | Financial services | 2020 |
| Phusflod Ltd | Professional & scientific | 2013 |
| Phuzie Bars Limited | Hospitality | 2024 |
| Piccadilly Radio Limited | Extraterritorial | 2025 |
| Piccante Restaurant Ltd | Hospitality | 2022 |
| Piccola Venezia Limited | Hospitality | 2015 |
| Pictorum Advisory Limited | Wholesale & retail | 2018 |
| Pierreponts Food Limited | Hospitality | 2023 |
| Pikk Ltd | Wholesale & retail | 2024 |
| Piled Foundations UK Ltd | Administrative & support | 2012 |
| Pilgrim PM Ltd | Professional & scientific | 2019 |
| Pilkington Aspinall and Bury Limited | Financial services | 2004 |
| Pilkington Holdings (NW) Ltd | Financial services | 2026 |
| Pilkington Holdings Ltd | Real estate | 2017 |
| Pilkington LGV Limited | Transport & logistics | 2017 |
| Pincock Hair Stylists Ltd | Other services | 2011 |
| Pine Villa Football Club C.I.C. | Education | 2024 |
| Pinewood Veterinary Practice Limited | Professional & scientific | 2013 |
| Pingo Limited | Extraterritorial | 2010 |
| Pininfarina Ltd | Hospitality | 2014 |
| Pinnacle Highways Limited | Construction | 2021 |
| Pipetone Civils Limited | Construction | 2017 |
| Pitchprep NW Ltd | Arts & recreation | 2022 |
| Pixie Dust Emporium UK Ltd | Arts & recreation | 2023 |
| Pizza Italia Leyland Ltd | Hospitality | 2025 |
| Pizza PI Pizzeria Limited | Hospitality | 2020 |
| PIZZA4U Midlands Ltd | Hospitality | 2019 |
| PJ Fit Ltd | Arts & recreation | 2019 |
| Pjjc Logistics Ltd | Transport & logistics | 2026 |
| PJP Home Renovations and Solutions Ltd | Construction | 2025 |
| PJS Engineering Services Ltd | Professional & scientific | 2024 |
| PK Kids Day Nursery (Eccleston) Limited | Health & social care | 2017 |
| PL Aviation Limited | Other services | 2015 |
| Plan 2 Retire Limited | Extraterritorial | 2019 |
| Plan My Wealth Limited | Financial services | 2025 |
| Plancelium Ltd | Professional & scientific | 2023 |
| Planetree Properties Limited | Real estate | 1973 |
| Planos Villa LLP | | 2016 |
| Plastic KEG Co Limited | Manufacturing | 2013 |
| Plastic KEG Manufacturing Company Limited | Manufacturing | 2014 |
| Platform One - Snacks on the Tracks Limited | Hospitality | 2013 |
| Platinum AB Ltd | Administrative & support | 2015 |
| Platinum Portfolios Limited | Extraterritorial | 1998 |
| PLATINUM78 Consulting Limited | Professional & scientific | 2021 |
| Plato Interiors Ltd | Wholesale & retail | 2022 |
| Play on Productions CIC | Education | 2025 |
| Play XD Ltd | Information & communication | 2019 |
| PLAY2GROW Football Ltd | Education | 2025 |
| Playdays Investments Limited | Real estate | 2016 |
| Playdoh MCR Ltd | Arts & recreation | 2025 |
| Playdor Burnley Limited | Education | 1990 |
| Playdor Limited | Education | 2015 |
| Pleasant View Grounds Maintenance Ltd | Administrative & support | 2019 |
| Plenary Healthcare Ltd. | Administrative & support | 2018 |
| PLJ Holdings Chorley Limited | Financial services | 2020 |
| Plsop Nominees Limited | Financial services | 2021 |
| Plumb Smart Solutions Limited | Construction | 2019 |
| Plumbing-Heating-Gas Ltd | Construction | 2014 |
| Plymouth Tiler Limited | Construction | 2022 |
| PM Human Factors Ltd | Professional & scientific | 2008 |
| PM International Ltd | Professional & scientific | 2015 |
| PMC Sales Consultancy Ltd | Wholesale & retail | 2019 |
| Pmco Limited | Financial services | 2008 |
| PMD Fire Protection Limited | Public administration | 2020 |
| PMG Financial Services Limited | Professional & scientific | 2024 |
| PMG Holdings Ltd | Administrative & support | 2021 |
| PMG Real Estate Limited | Real estate | 2025 |
| PMT Developments Limited | Construction | 2020 |
| PN Build Limited | Construction | 2007 |
| Poacher Old ST Mellons Limited | Hospitality | 2019 |
| Pockett Courier Services Ltd | Transport & logistics | 2015 |
| POD Distribution Ltd | Transport & logistics | 2017 |
| POD Lettings Ltd | Real estate | 2020 |
| POD Logistics Limited | Transport & logistics | 2014 |
| Podium 7 Events Ltd | Arts & recreation | 2025 |
| Polaris Land Limited | Real estate | 2022 |
| Pollambers Limited | Hospitality | 2009 |
| Polyfast.Co.Uk Ltd | Wholesale & retail | 2010 |
| Polymars Limited | Wholesale & retail | 2007 |
| Polymea Ltd | Professional & scientific | 2021 |
| Polymer Floor Sweeps Recovery Ltd | Water & waste | 2023 |
| Pondersbridge Car Sales Ltd | Wholesale & retail | 2024 |
| Pondstones Limited | Wholesale & retail | 2025 |
| Poole Contracts Limited | Transport & logistics | 2014 |
| Poole's Property Developments Ltd | Real estate | 2024 |
| Pope Marshall Ltd | Administrative & support | 2014 |
| Poppi Avenue Limited | Wholesale & retail | 2020 |