| Peddler Collection Limited | Wholesale & retail | 2014 |
| Peddler Limited | Wholesale & retail | 2013 |
| Peel Castle Ltd | Professional & scientific | 2004 |
| Pegasus Food Safety Services Limited | Professional & scientific | 2018 |
| Pegasus Insight Limited | Professional & scientific | 2023 |
| Pelham Underwriting LLP | | 2006 |
| Pelican Control Systems Ltd | Professional & scientific | 1999 |
| Pelican Robotics Ltd | Extraterritorial | 2019 |
| Pembroke Wines Ltd | Wholesale & retail | 2023 |
| PEN Hill LLP | | 2006 |
| Pendennis Axis Properties Limited | Real estate | 2018 |
| Pendulum Community Gaming CIC | Wholesale & retail | 2024 |
| Pendulum Gaming Ltd | Wholesale & retail | 2023 |
| Penn Overseas UK Limited | Financial services | 2014 |
| Pentangle Engineering Services Limited | Manufacturing | 2004 |
| Pentangle Fabrications Ltd | Extraterritorial | 2026 |
| Pentangle Smart Solutions Ltd | Manufacturing | 2024 |
| People of Peace Studios Limited | Information & communication | 2022 |
| PEP Circus Productions Limited | Arts & recreation | 2009 |
| PER Annum Accounting Limited | Professional & scientific | 2011 |
| Percival 1950 LLP | | 2007 |
| Peregrine Underwriting Limited | Administrative & support | 2000 |
| Perera PMN Ltd | Real estate | 2025 |
| Perezhealthcareservices Ltd | Health & social care | 2026 |
| Perfect Pitches (UK) Limited | Administrative & support | 2015 |
| Perfect Results Ltd | Administrative & support | 2003 |
| Performance Surfaces Ltd | Construction | 2025 |
| Performing Stars Ltd | Arts & recreation | 2022 |
| Perma-Soil UK Limited | Manufacturing | 1996 |
| Perspective Dental Education Limited | Health & social care | 2014 |
| Pestell's GAS Care Ltd | Construction | 2023 |
| Pestell's OIL Care Ltd | Professional & scientific | 2026 |
| Pesticide Applicator Testing Limited | Agriculture & fishing | 2013 |
| Peter Sowerby Homes Limited | Real estate | 2004 |
| Pezoch Limited | Information & communication | 2023 |
| Pezoch Properties Ltd | Real estate | 2024 |
| PGC Host&Home Ltd | Hospitality | 2026 |
| Phil Shaw Consultancy Ltd | Information & communication | 2022 |
| Philip Hodgson Tiling Limited | Construction | 2017 |
| Phoenix Engineering Solutions Limited | Information & communication | 1992 |
| Phoenix Locksmiths Limited | Administrative & support | 2023 |
| Phone King Limited | Other services | 2020 |
| Photopublishinguk Ltd | Information & communication | 2023 |
| Physioh Ltd | Health & social care | 2026 |
| Picador Properties Ltd | Real estate | 2017 |
| Picto Construction Ltd | Construction | 2024 |
| Pictrip Ltd | Administrative & support | 2016 |
| Pinco Limited | Financial services | 2021 |
| Pinnacle Global Security & Multi-Serv Ltd | Administrative & support | 2026 |
| Pipeline Project Management Services Limited | Professional & scientific | 2016 |
| Pitcombe Limited | Financial services | 2010 |
| Pivotal Moments Ltd | Administrative & support | 2021 |
| Pizza Hot Grantham Limited | Hospitality | 2025 |
| PJ Franks Ltd | Hospitality | 2021 |
| PK Canine Ltd | Education | 2025 |
| PK Property Investments Ltd | Real estate | 2024 |
| Plant Sales UK Limited | Wholesale & retail | 2022 |
| Plasia Ltd | Health & social care | 2021 |
| Platinum Sporting Ltd | Wholesale & retail | 2020 |
| Pledge Building Services Limited | Construction | 2017 |
| Plots & Plans Go Eco Limited | Construction | 2012 |
| Plural Property Limited | Real estate | 2006 |
| Plutus Property Developments Limited | Extraterritorial | 2021 |
| Plutus Realty Group Ltd | Households | 2019 |
| PNK Automotive Limited | Wholesale & retail | 2018 |
| Pocket Warehouse Holdings Limited | Financial services | 2015 |
| Pocock Hill Limited | Professional & scientific | 2005 |
| Podcrash Ltd | Information & communication | 2017 |
| Point 10 Projects Limited | Construction | 2012 |
| POINT10 Limited | Construction | 2016 |
| POINT2POINT Ltd | Transport & logistics | 2026 |
| Pollock Associates Limited | Real estate | 2006 |
| Polonius Debt Purchase Limited | Administrative & support | 2020 |
| Polymorphic Engineering Ltd | Construction | 2025 |
| Polysports Ltd | Construction | 2018 |
| Polysportsuk Ltd | Construction | 2018 |
| Ponton Farming Company Limited | Agriculture & fishing | 1953 |
| Ponton Main Service Station LLP | | 2012 |
| Pontrhydyrun Ltd | Administrative & support | 2022 |
| Portobello Underwriting Limited | Financial services | 2009 |
| Portuguese Football Alliance Ltd | Arts & recreation | 2024 |
| Poseidon Wheelie BIN Cleaning Ltd | Administrative & support | 2025 |
| Posh Books (2014) Limited | Extraterritorial | 2014 |
| Posh Books Limited | Extraterritorial | 2024 |
| Positive Attitudes Limited | Education | 2004 |
| Positive Money Solutions Limited | Financial services | 2010 |
| Posteroute Limited | Professional & scientific | 2004 |
| Potato Champ Limited | Hospitality | 2025 |
| Pottergate Estates Limited | Hospitality | 2021 |
| Potters Hill Stables Limited | Extraterritorial | 1997 |
| Powatrim Ltd | Manufacturing | 2023 |
| Powdera Group Limited | Manufacturing | 2023 |
| Power Knot (UK) Limited | Administrative & support | 2021 |
| Prashika Residencial Lets Ltd | Real estate | 2019 |
| Praxis Dynamics Ltd | Professional & scientific | 2025 |
| Precision Cleaning Group Limited | Administrative & support | 2025 |
| Predictive Maintenance Services Ltd | Professional & scientific | 2026 |
| Premier Tyre Equipment Limited | Manufacturing | 2021 |
| Premium Plan Limited | Financial services | 2006 |
| Premium Plan Motor Finance Limited | Financial services | 2018 |