| Pinkcandymanagement Ltd | Other services | 2025 |
| Pinkham Way Alliance Limited | Professional & scientific | 2011 |
| Pinnacle D&B Group Limited | Construction | 2025 |
| Pinnacle Education Services Ltd | Education | 2025 |
| Pinnacle Images Limited | Manufacturing | 1994 |
| Pinnacle Partitions Ltd | Construction | 2024 |
| Pipe Process Fabrication Limited | Construction | 2022 |
| Piper Contract Farming Limited | Real estate | 2011 |
| Piper-Tring Ltd | Wholesale & retail | 2020 |
| Pipkins (UK) Limited | Information & communication | 1989 |
| Pippin Property Limited | Extraterritorial | 2014 |
| Pips Pooches Ltd | Other services | 2024 |
| Piragathi Limited | Wholesale & retail | 2022 |
| Pistachio London Limited | Hospitality | 2013 |
| Pistol Knight Productions Limited | Other services | 2024 |
| Pitchers Ltd | Information & communication | 2025 |
| Pithman's Limited | Professional & scientific | 2014 |
| Pitta Souvlaki Ltd | Hospitality | 2026 |
| Pitwall.Ai Ltd | Information & communication | 2024 |
| Pivotal MEP Ltd | Construction | 2025 |
| Pivotal People Limited | Administrative & support | 2015 |
| Pivotal Planning Limited | Construction | 2015 |
| Pixel Pictures Ltd | Professional & scientific | 2007 |
| Pixel Precision Trading Ltd | Information & communication | 2026 |
| Pixton Park Association Ltd | Households | 2014 |
| PJ Dunfermline Ltd | Hospitality | 2018 |
| PJ Falkirk Limited | Hospitality | 2017 |
| PJ Hughes Properties Ltd | Real estate | 2017 |
| PJ Roofing (Kent) Limited | Construction | 2004 |
| PJE Surveying Ltd | Administrative & support | 2015 |
| PJR Financial Support Limited | Professional & scientific | 2017 |
| PJW Custom Carpets Ltd | Manufacturing | 2025 |
| PK Construction & Engineering Limited | Construction | 2013 |
| PL Topco Limited | Professional & scientific | 2013 |
| Place to Place TV Ltd | Transport & logistics | 2025 |
| Plan Smart Financial Planning Limited | Financial services | 2014 |
| Planet Audit Limited | Professional & scientific | 2012 |
| Planet Digital Ltd | Manufacturing | 2010 |
| Plant Circle Ltd | Wholesale & retail | 2023 |
| Plant Folium Ltd | Other services | 2022 |
| Plant Machinery and Engineering Services Ltd | Professional & scientific | 1997 |
| Plantsci Consulting Limited | Professional & scientific | 2019 |
| Plasticbuild Industries Limited | Manufacturing | 2025 |
| Platinum Cars London Limited | Transport & logistics | 2018 |
| Platinum Dining Group Limited | Hospitality | 2026 |
| Play Mountain Limited | Information & communication | 2013 |
| Play to Learn (Kent) Ltd | Education | 2025 |
| Player 71 Ltd | Transport & logistics | 2024 |
| Playhouse Childminding (Kent) Ltd | Health & social care | 2026 |
| PLD Consultants Limited | Professional & scientific | 2007 |
| Pleiadian Holdings Ltd | Financial services | 2012 |
| Pleiadian Management Ltd | Real estate | 2012 |
| Pleiadian Property Ltd | Construction | 2012 |
| Plolo Ltd | Construction | 2024 |
| PLR Care Recruitment Ltd | Administrative & support | 2022 |
| PLS Training Ltd | Professional & scientific | 2025 |
| Plumb Right Contractors Ltd | Construction | 2024 |
| Plumbstar Ltd | Construction | 2018 |
| Plummer Holdings Limited | Real estate | 2020 |
| Plut Limited | Professional & scientific | 2019 |
| PM 2002.1 Limited | Professional & scientific | 2022 |
| PM Group Worldwide Limited | Information & communication | 1988 |
| Pmcp Services Limited | Transport & logistics | 2020 |
| PME Electrical Contractors Ltd | Construction | 2024 |
| Pmoyo Textile Limited | Wholesale & retail | 2024 |
| PMS Property Maintenance & Services Limited | Other services | 2012 |
| PN Electrical Ltd | Construction | 2021 |
| PNA Limited | Real estate | 2023 |
| PNN Trading Ltd | Wholesale & retail | 2022 |
| PNW Investments Limited | Real estate | 2017 |
| Pocintech Limited | Information & communication | 2017 |
| Pocket Holdings Ltd | Construction | 2026 |
| Pockett Properties Limited | Construction | 2021 |
| POD Architects Ltd | Professional & scientific | 2009 |
| Point 2 Point Properties Ltd | Real estate | 2019 |
| Point Solutions Ltd | Information & communication | 1994 |
| Point Thirty Seven Ltd | Professional & scientific | 2025 |
| POINT2POINT Property Holdings Ltd | Real estate | 2019 |
| Poise-Reforme Limited | Arts & recreation | 2025 |
| Pokar Property Limited | Real estate | 2020 |
| Poke Bruvs Limited | Wholesale & retail | 2025 |
| Pola Consultants Limited | Other services | 2013 |
| Pole Holdings Limited | Financial services | 2023 |
| Pole Position Training Trading Company Limited | Education | 2023 |
| Polhill Investments Ltd | Real estate | 2022 |
| Policy Powerhouse Group Limited | Financial services | 2026 |
| Policy Powerhouse Limited | Information & communication | 2020 |
| Polkadot Productions Limited | Information & communication | 1994 |
| Pollard Machin Limited | Administrative & support | 1998 |
| Pollo Authentic Filippino BBQ Ltd | Hospitality | 2026 |
| Polo Motor Company Ltd | Wholesale & retail | 2013 |
| Polska-Anglia Limited | Information & communication | 2013 |
| Pomona Consulting Limited | Professional & scientific | 2025 |
| Pomp & Pride Ltd | Other services | 2018 |
| Pond Farm (Kent) Limited | Agriculture & fishing | 2019 |
| Pontem Digital Ltd | Information & communication | 2025 |
| Poochdvd Products Limited | Professional & scientific | 2018 |
| Pool Crates Ltd. | Professional & scientific | 2025 |
| POP N’ Floss Ltd | Hospitality | 2025 |
| Pop-Up Retail Ltd | Wholesale & retail | 2019 |