| PHC Consultancy Limited | Professional & scientific | 2024 |
| PHC Fire & Security Limited | Construction | 2016 |
| PHD Project Services Limited | Education | 2018 |
| PHD Property Holdings Limited | Real estate | 2019 |
| Phiaro Ltd | Health & social care | 2024 |
| Phil Burnett Ltd. | Professional & scientific | 2015 |
| Phil Winkle Diving Services Limited | Construction | 2013 |
| Philip Cowan Limited | Wholesale & retail | 2023 |
| Philippa Glover Ltd | Professional & scientific | 2024 |
| Phillips & Phillips Properties Ltd | Real estate | 2022 |
| Phoenix Cyber Security Limited | Information & communication | 2016 |
| Phoenix F & I Solutions Limited | Financial services | 2008 |
| Phoenix Lawncare NW Limited | Administrative & support | 2019 |
| Phoenix Lawncare UK Limited | Administrative & support | 2019 |
| Phoenix Legal Limited | Professional & scientific | 2017 |
| Phoenix PCN Entertainment Ltd | Hospitality | 2025 |
| Phoenix Removals Limited | Transport & logistics | 2002 |
| Photo Stories Ltd | Information & communication | 2019 |
| Phronesis Nuclear Ltd | Professional & scientific | 2026 |
| Phulcrum Prescribing Limited | Administrative & support | 2021 |
| PHV Settles Limited | Transport & logistics | 2026 |
| Physio Strength Club Ltd | Health & social care | 2022 |
| Physio Unleashed Ltd | Health & social care | 2024 |
| Piadina Limited | Hospitality | 2023 |
| Piadina Pronto Limited | Hospitality | 2016 |
| Pichi Catering Limited | Hospitality | 2025 |
| Pickle Homes Ltd | Real estate | 2024 |
| Pictogpt Ltd | Information & communication | 2026 |
| Pideia Ltd | Health & social care | 2017 |
| Pier Apartments Ltd | Real estate | 2013 |
| Pierce Media Limited | Professional & scientific | 2022 |
| Piggie Stardust Ltd | Hospitality | 2025 |
| Piglet Property Ltd | Administrative & support | 2007 |
| Pilot Enterprises Limited | Wholesale & retail | 2022 |
| Pilot Wave Ltd | Information & communication | 2025 |
| Pimlico Electrical & Building Ltd | Construction | 2017 |
| PIN Records Limited | Information & communication | 2023 |
| Pinay Glow Ltd | Wholesale & retail | 2024 |
| Pinch of NOM Limited | Information & communication | 2019 |
| Pindo Property Ltd | Real estate | 2024 |
| Pine & Oak Warehouse Limited | Wholesale & retail | 2007 |
| Pinehaven Homes Limited | Health & social care | 2024 |
| Pinehaven Properties Limited | Real estate | 2024 |
| Pinewalk Limited | Construction | 1936 |
| Pinfold Hoylake (Management) Company Limited | Households | 1976 |
| Pingu WK Ltd | Hospitality | 2026 |
| Pink Nail Studio Ltd | Other services | 2024 |
| Pinnacle Consulting Services Ltd | Administrative & support | 2023 |
| Pinnacle Electrical Supplies (Bolton) Ltd | Wholesale & retail | 2018 |
| Pinnacle UK Group Limited | Financial services | 2018 |
| Pinner Consulting Limited | Professional & scientific | 2004 |
| Pinpoint Interiors North West Limited | Construction | 2025 |
| PIP IT Global Limited | Financial services | 2017 |
| Pipers Court Property Management Limited | Households | 2023 |
| Piri Siri Delivery Ltd | Hospitality | 2024 |
| Pisces Aviation Ltd | Professional & scientific | 2025 |
| Pisces Precision Limited | Health & social care | 2024 |
| Pistachio Holdings Limited | Financial services | 2021 |
| Pittinaris Limited | Wholesale & retail | 2024 |
| Pizza Bar Grill Ltd | Hospitality | 2017 |
| Pizza Bar Hot Food Ltd | Hospitality | 2026 |
| Pizza Mamma Brom Ltd | Hospitality | 2025 |
| Pizza Slice Birkenhead Ltd | Hospitality | 2025 |
| PJ & Co Properties Ltd | Real estate | 2020 |
| PJ Environmental Limited | Water & waste | 2004 |
| Pjaz Limited | Professional & scientific | 2006 |
| Pjca Property Ltd | Real estate | 2025 |
| Pjdts Ltd | Professional & scientific | 2024 |
| PJE Electrical Services Ltd | Construction | 2018 |
| PJM Engineering Services Limited | Professional & scientific | 2015 |
| PJP Architecture Limited | Professional & scientific | 2019 |
| PJS Care Holdings Limited | Administrative & support | 2014 |
| PJS Care Limited | Administrative & support | 2010 |
| PK Facades Limited | Administrative & support | 2018 |
| PK Trading Services Limited | Wholesale & retail | 2021 |
| PKC Design Services Ltd | Professional & scientific | 2023 |
| Pkimonster Ltd | Information & communication | 2018 |
| PL Procurement Ltd | Information & communication | 2013 |
| Plan Makers Ltd | Professional & scientific | 2024 |
| Plan X Consulting Limited | Professional & scientific | 2012 |
| Planager Limited | Information & communication | 2014 |
| Planmakers Production House Ltd | Information & communication | 2025 |
| Planning Conditions Ltd | Professional & scientific | 2012 |
| Plant Attic Ltd | Professional & scientific | 2025 |
| Plant Hire Division Group Limited | Financial services | 2018 |
| Plant Hire Division Ltd | Administrative & support | 2016 |
| Plant Property Solutions Limited | Construction | 2025 |
| Plante Holdings Ltd | Hospitality | 2025 |
| Plantglobe Limited | Manufacturing | 2001 |
| Plas-Teg Estates Limited | Real estate | 1984 |
| Plasterers Blend Limited | Wholesale & retail | 2024 |
| PLASTERING2U.COM Ltd | Construction | 2022 |
| Platin Jobs Ltd | Administrative & support | 2016 |
| Platinum Box Pack Limited | Professional & scientific | 2022 |
| Platinum Capital Limited | Financial services | 2005 |
| Platinum London Construction Limited | Construction | 2022 |
| Platinum Management Solutions NW Ltd | Transport & logistics | 2023 |
| Platinum Media Limited | Professional & scientific | 1999 |
| Platinum Properties (NW) Limited | Construction | 2023 |
| Platt Packaging Limited | Administrative & support | 1997 |