| Persimmon Consulting Ltd | Professional & scientific | 2026 |
| Person Centred Care Consultancy Limited | Health & social care | 2013 |
| Peter & Scott Properties Ltd | Extraterritorial | 2011 |
| Peter Hadley Consulting Limited | Professional & scientific | 2012 |
| Petersen Marcoms Limited | Professional & scientific | 2011 |
| Petersen-Jones Architects Limited | Professional & scientific | 2005 |
| Peterson-Willis Properties Ltd | Real estate | 2011 |
| Peterson-Willis Property Services Ltd | Construction | 2016 |
| PG Installation Limited | Manufacturing | 2011 |
| PG Property Ltd | Hospitality | 2018 |
| Philip Williams Beverage Consultancy Limited | Professional & scientific | 2023 |
| Phoebe’S Pigs Ltd | Agriculture & fishing | 2024 |
| Phoenix & Shard Investments Ltd | Real estate | 2020 |
| Phoenix Endeavours Limited | Professional & scientific | 2024 |
| Phoenix Rise Care Ltd | Health & social care | 2024 |
| PIC PR Ltd | Extraterritorial | 2015 |
| Pickle Labs Collective Ltd | Professional & scientific | 2026 |
| Pickwick Newspapers Ltd | Wholesale & retail | 2024 |
| Pilipala Care Ltd | Health & social care | 2021 |
| Pilkington Medical Consulting Limited | Health & social care | 2021 |
| Pink Trout Promotions Limited | Construction | 2024 |
| Pivotal Foods Ltd | Wholesale & retail | 2021 |
| Pivots Consultancy Ltd | Professional & scientific | 2017 |
| Pixborough Limited | Administrative & support | 2014 |
| Pixelhouse Capital Limited | Financial services | 2025 |
| Pixelhouse Group Limited | Professional & scientific | 2015 |
| Pixelhouse Holdings Limited | Financial services | 2025 |
| PJ Tyrrell Legal Services Ltd | Administrative & support | 2022 |
| Place Maintenance Limited | Other services | 2003 |
| Planned for Perfection Event Management Ltd | Administrative & support | 2022 |
| Plasline DRY Lining Ltd | Administrative & support | 2017 |
| Plumb Pro (Cornwall) Ltd | Construction | 2018 |
| PNL Tools Limited | Wholesale & retail | 2002 |
| Pollard Limited | Extraterritorial | 2006 |
| Pollard Precision Engineering Limited | Manufacturing | 1970 |
| Pollards Engineering Limited | Extraterritorial | 2006 |
| Pollards Engineering Services Limited | Extraterritorial | 2006 |
| Polygon Marketing Limited | Administrative & support | 2002 |
| Pool on the Playground Ltd | Education | 2025 |
| Portch Consulting Services Ltd | Information & communication | 2025 |
| Portch Services Ltd | Construction | 2022 |
| Positronic Studios Ltd | Information & communication | 2018 |
| Potters Court Management Company (NO. 2) Limited | Households | 1990 |
| Powell and Daughters Ltd | Financial services | 2024 |
| Power Autos Ltd | Wholesale & retail | 2019 |
| Power to HER CIC | Health & social care | 2024 |
| Powerstation Music Ltd | Transport & logistics | 2022 |
| Pre-Sale Services (Kent) Limited | Hospitality | 1980 |
| Precisely Aligned Pilates Ltd | Other services | 2025 |
| Prescott Instruments (Manufacturing) Ltd | Manufacturing | 2000 |
| Prescott Instruments Limited | Manufacturing | 1994 |
| Prestige Property Folk Ltd | Real estate | 2024 |
| Pretty Woman Salon Ltd | Other services | 2018 |
| Print Calibration Services Ltd | Administrative & support | 2014 |
| Pro Hand Services Ltd | Construction | 2025 |
| Pro-Active Physiotherapy and Pilates Ltd | Health & social care | 2020 |
| Probolt Fasteners Ltd | Wholesale & retail | 2019 |
| Proccup Ltd | Wholesale & retail | 2026 |
| Profectus Consultancy Limited | Professional & scientific | 2015 |
| Projectina Services UK Limited | Professional & scientific | 2023 |
| Promech Machinery Services Ltd | Manufacturing | 2023 |
| Propace Ltd | Professional & scientific | 2024 |
| Property Edge South Limited | Construction | 2025 |
| Property With J&C Ltd | Real estate | 2022 |
| Prospect Developments (Cotswolds) Ltd | Construction | 2025 |
| Prospect Electricians Ltd | Construction | 2023 |
| Proud Phoenix Club Ltd | Wholesale & retail | 2023 |
| Proview Sports Performance Ltd | Health & social care | 2026 |
| PSG Build Ltd | Construction | 2023 |
| Pshb Group Ltd | Transport & logistics | 2024 |
| Public Speech Services Ltd | Other services | 2026 |
| Pure Improvement Ltd | Professional & scientific | 2020 |
| Purple Flooring Limited | Wholesale & retail | 2022 |
| Purple Modus Lion Limited | Financial services | 2023 |
| QIA Services Limited | Administrative & support | 2009 |
| Qualitas Partnership Limited | Financial services | 1993 |
| Quality Care Management Support Ltd | Professional & scientific | 2021 |
| Quality International Services Limited | Other services | 2021 |
| Quarry Clothing Co Ltd | Wholesale & retail | 2019 |
| Quattro Heating Limited | Construction | 2010 |
| Quattro Mechanical Ltd | Construction | 2024 |
| Quattro Property Portfolio Ltd | Real estate | 2021 |
| Quick Solutions Automotive Ltd | Wholesale & retail | 2019 |
| Quickgrind Limited | Manufacturing | 1975 |
| Quickvend Limited | Manufacturing | 2018 |
| R P Motors Limited | Wholesale & retail | 2018 |
| R Rowe Construction Ltd | Construction | 2017 |
| R S Squared Business Services Limited | Professional & scientific | 2017 |
| R&R Private Hire Ltd | Transport & logistics | 2024 |
| R-Tech Welding Equipment Limited | Manufacturing | 2007 |
| Raccoon IT Ltd | Information & communication | 2015 |
| Race to Frame Ltd | Manufacturing | 2025 |
| Race-Tec Sealing Limited | Manufacturing | 1996 |
| Raceday Club Ltd | Information & communication | 2020 |
| Racketspec Limited | Wholesale & retail | 2024 |
| Railway Preservation Company Limited | Manufacturing | 2023 |
| Raise More Ltd | Arts & recreation | 2025 |
| Randall & Warner Building Contractors Ltd. | Construction | 2007 |
| Ratcliffe Financial Services Limited | Financial services | 1999 |
| Rathdowne Ltd | Health & social care | 2023 |