| PJO Property Ltd | Real estate | 2026 |
| PJS Holdings Limited | Real estate | 2022 |
| Pjtsa Engineering Services Ltd | Professional & scientific | 2021 |
| PKG Solutions Ltd | Professional & scientific | 2025 |
| PKJ Ltd | Information & communication | 2024 |
| Pknet Ltd | Wholesale & retail | 2023 |
| PL Art Ltd | Arts & recreation | 2021 |
| PL Dicker Limited | Health & social care | 2019 |
| PL Imaging Limited | Health & social care | 2018 |
| Plain Selling Limited | Professional & scientific | 2023 |
| Plan IT FM Ltd | Other services | 2016 |
| Plan-Analytics Holdings Ltd | Financial services | 2026 |
| Plan-Analytics Software Ltd | Information & communication | 2026 |
| Plan-It Landscapes Ltd | Administrative & support | 2008 |
| Planit Engineering Associates Ltd | Professional & scientific | 2024 |
| Planning Enforcement Consultants Limited | Administrative & support | 2008 |
| Plant Disposals Limited | | 1960 |
| Plantfacts Ltd | Wholesale & retail | 2016 |
| Plantsbrook Group Limited | Extraterritorial | 1989 |
| Plantsbrook Limited | Extraterritorial | 1988 |
| Platform 21 Limited | Other services | 2020 |
| Platform Inspires Limited | Information & communication | 2017 |
| Platinum G Investments Limited | Real estate | 2022 |
| Platinum Oak House Ltd | Wholesale & retail | 2026 |
| Platinum Performance Solutions Ltd | Professional & scientific | 2020 |
| Pleasley Pharmacy Limited | Health & social care | 2007 |
| PLK Motors Ltd | Wholesale & retail | 2019 |
| Plum Properties Limited | Real estate | 2017 |
| Plum Real Estate Ltd | Real estate | 2016 |
| Plus One Housing Ltd | Administrative & support | 2025 |
| Plush Interiors and Exterior Ltd | Water & waste | 2014 |
| Plush Puppy Spa Ltd | Other services | 2021 |
| PM Activity Camps Ltd | Education | 2026 |
| PM Coaching Services Ltd | Arts & recreation | 2022 |
| PM Locksmith Limited | Manufacturing | 2025 |
| Pmdelivery Ltd | Construction | 2018 |
| PMF Building Services Limited | Construction | 2025 |
| PMJ Management Ltd | Professional & scientific | 2010 |
| PMP Trading UK Ltd | Wholesale & retail | 2012 |
| PMU Ltd | Health & social care | 2026 |
| PN Hudson Ltd | Administrative & support | 2022 |
| PO FAT Ltd | Hospitality | 2025 |
| Pocketvision Limited | Other services | 2017 |
| Podernovo Limited | Wholesale & retail | 2020 |
| Podium Architecture Limited | Professional & scientific | 2019 |
| Point Recruitment Consultants Limited | Administrative & support | 2005 |
| POINT2POINT Property Solutions Ltd | Construction | 2022 |
| Poke Piece Ltd | Wholesale & retail | 2026 |
| Pole Position Estates Ltd | Manufacturing | 2017 |
| Polishcraft Limited | Real estate | 2002 |
| Polly Kelly Ltd | Health & social care | 2025 |
| Polly Phelps Health & Fitness Ltd | Arts & recreation | 2020 |
| Polycore Plastics Limited | Manufacturing | 2011 |
| Polymer Health Ltd | Manufacturing | 2023 |
| Pondera Sport Ltd | Wholesale & retail | 2024 |
| Poochie Boutique Limited | Wholesale & retail | 2025 |
| Pool & Palm Ltd | Wholesale & retail | 2025 |
| Pool Parts 4 U Ltd | Wholesale & retail | 2023 |
| Poparted Limited | Wholesale & retail | 2013 |
| Portas Property Ltd | Real estate | 2024 |
| Portfolio 111 Limited | Real estate | 2022 |
| Portlang Limited | Other services | 2025 |
| Portmill Property Limited | Real estate | 2023 |
| Portrait of Altheia Limited | Manufacturing | 2025 |
| Posh Beauty Studio Ltd | Other services | 2026 |
| Posh International Business UK Ltd | Extraterritorial | 2022 |
| Positive Energy Fitness Ltd | Other services | 2021 |
| Positive Impact for Greater Futures Limited | Education | 2026 |
| Positive Pick UP Ltd | Hospitality | 2023 |
| Poulis Holdings Ltd | Financial services | 2020 |
| Powell's Pool Users Organisation Ltd | Arts & recreation | 2009 |
| Power & Power Estates Limited | Real estate | 2017 |
| Power Press Engineering Limited | Manufacturing | 2020 |
| Power Press Inspection Services Limited | Administrative & support | 1994 |
| Power Trace Systems Limited | Manufacturing | 2025 |
| Powermark Ltd | Construction | 2025 |
| Powis Pets Ltd | Real estate | 2017 |
| PP Legal Ltd | Professional & scientific | 2016 |
| Pphc Properties Ltd | Real estate | 2018 |
| Ppmp Consulting Ltd | Information & communication | 2020 |
| PPY Consultancy Limited | Professional & scientific | 2026 |
| PR Property Stays Ltd | Real estate | 2023 |
| PR Trinity Investments Ltd | Real estate | 2019 |
| Prajna and Pavan Limited | Information & communication | 2019 |
| Precision Bathrooms Limited | Construction | 2017 |
| Precision Engineering Technologies Limited | Manufacturing | 2001 |
| Precision Project Management & Quantity Surveying Ltd | Professional & scientific | 2018 |
| Precision Rentals Limited | Real estate | 2025 |
| Precision Touch Properties Limited | Construction | 2020 |
| Predictopia Ltd | Wholesale & retail | 2023 |
| Preferential Properties Ltd | Real estate | 1999 |
| Premier Access Scaffolding Solutions Limited | Construction | 2018 |
| Premier Appliances Maintenance Ltd | Wholesale & retail | 2023 |
| Premier Diamonds UK Limited | Manufacturing | 2008 |
| Premier Inn (South Great George Street) Limited | Real estate | 2022 |
| Premier Leisure Associates Limited | Real estate | 2003 |
| Premier Lifestyle Properties Ltd | Real estate | 2020 |
| Premier Lighting Supplies Limited | Wholesale & retail | 2003 |
| Premier One Mortgages Ltd | Financial services | 2022 |
| Premier Paper Holdings Limited | Wholesale & retail | 2016 |