| Pick &Sell Limited | Wholesale & retail | 2020 |
| Pickwick Papers Limited | Wholesale & retail | 2012 |
| Pierre Accountancy & Consultancy Services Ltd | Professional & scientific | 2018 |
| PIN Accounting Services Ltd | Professional & scientific | 2014 |
| Pind TOH Vlait CIC | Hospitality | 2025 |
| Pinnacle Immigration Lawyers Ltd | Professional & scientific | 2024 |
| Pippa Homes Ltd | Real estate | 2020 |
| Piron Construction Ltd | Construction | 2023 |
| Piston Heads Limited | Wholesale & retail | 2011 |
| Pithy Lifestyle Limited | Other services | 2024 |
| PJD Construction London Limited | Construction | 2017 |
| PKS Home Improvements Ltd | Construction | 2025 |
| Plasma Solution London Ltd | Other services | 2022 |
| PLATE01 Ltd | Hospitality | 2025 |
| Platinum Prime Executive Ltd | Transport & logistics | 2026 |
| Plutus and PAX Ltd | Wholesale & retail | 2019 |
| Plymouth Warehouse Limited | Real estate | 2022 |
| PMA Builders Ltd | Construction | 2011 |
| PMA Short Stays Ltd | Real estate | 2024 |
| PMS Reachaa Limited | Hospitality | 2024 |
| PNP Oral Hygiene Ltd | Health & social care | 2024 |
| Polecas Ltd | Wholesale & retail | 2018 |
| Polikai Otrumai Sports Club UK Ltd | Arts & recreation | 2022 |
| Polsport UK Ltd | Administrative & support | 2023 |
| Pooja Real Estate Ltd | Real estate | 2023 |
| Poonch Ltd | Construction | 2025 |
| POP BBB Ltd | Construction | 2026 |
| Portable Wellness Room Ltd | Health & social care | 2022 |
| POS Group Limited | Other services | 2013 |
| Poseidon Limited | Wholesale & retail | 2004 |
| Power Flush Doctor Ltd | Construction | 2020 |
| Power Force Protect Ltd | Administrative & support | 2025 |
| Power System Operations Limited | Construction | 2017 |
| PP Construction (UK) Ltd | Construction | 2015 |
| Ppbs Construction Limited | Construction | 2016 |
| PPS Delivery Ltd | Transport & logistics | 2014 |
| Praba's Retail Ltd | Wholesale & retail | 2024 |
| Prabh Plastering Servicees Ltd | Construction | 2025 |
| Practitioner on Standby Limited | Health & social care | 2014 |
| Pracy Limited | Wholesale & retail | 2017 |
| Praliya IT Services Ltd | Information & communication | 2016 |
| Prasup Properties Limited | Real estate | 2017 |
| Praxis Carbon Ltd | Information & communication | 2026 |
| Precious Kare Limited | Administrative & support | 2018 |
| Precisioncore Ltd | Professional & scientific | 2026 |
| Preetec Limited | Information & communication | 2011 |
| Prem Events Ltd | Arts & recreation | 2024 |
| Premiere Site Services Limited | Construction | 2017 |
| Premium Supps Ltd | Wholesale & retail | 2019 |
| Prestige Home Touch Ltd | Construction | 2025 |
| Prevent Systems Ltd | Administrative & support | 2024 |
| Prime Design&Build Ltd | Construction | 2020 |
| Prime Trading Ltd | Wholesale & retail | 2026 |
| Prime UK Furniture Ltd | Manufacturing | 2020 |
| PRIME53 Ltd | Wholesale & retail | 2025 |
| Primebuild Builders Ltd | Construction | 2025 |
| Primecrown 2010 Limited | Extraterritorial | 1986 |
| Primelink International Ltd | Wholesale & retail | 2025 |
| Primex Procurement and Distribution Ltd | Wholesale & retail | 2026 |
| Privacy Nepal Ltd | Wholesale & retail | 2022 |
| Priya's Cottage Ltd | Hospitality | 2019 |
| Priya's Retail Ltd | Hospitality | 2018 |
| Pro Cleaning Care Ltd | Administrative & support | 2017 |
| Pro Construction Services Ltd | Construction | 2020 |
| Pro Edge Beauty Supply Ltd | Wholesale & retail | 2026 |
| Pro Facilities Services Ltd. | Administrative & support | 2023 |
| Pro-Tem 365 Limited | Administrative & support | 2020 |
| Probuild Systems Limited | Extraterritorial | 2013 |
| Professional Property Investments Limited | Real estate | 2025 |
| Profix Builders Design Limited | Construction | 2024 |
| Profix Builders Ltd | Construction | 2021 |
| Project West Limited | Other services | 2005 |
| Projects by Samira Ltd | Professional & scientific | 2019 |
| Proled Ltd | Professional & scientific | 2025 |
| Prominent Limited | Wholesale & retail | 2015 |
| Promised Care Limited | Education | 2013 |
| Properteed Limited | Real estate | 2024 |
| Property Fair View Ltd | Construction | 2022 |
| Proponent Project Management Ltd | Professional & scientific | 2018 |
| Proprietors of London Limited | Real estate | 2021 |
| PRT Shop Fitters Limited | Construction | 2025 |
| PS Property Ventures Ltd | Real estate | 2025 |
| PS Spark Ltd | Construction | 2023 |
| Psionet Ltd | Professional & scientific | 2018 |
| PSP Consultancy Solutions Ltd | Information & communication | 2017 |
| PT & D Construction Ltd | Construction | 2018 |
| PT (UK) Limited | Hospitality | 2012 |
| Ptasiek Trans Ltd | Transport & logistics | 2025 |
| PUI Engineering Design Ltd | Professional & scientific | 2025 |
| Pumahomes Ltd | Real estate | 2025 |
| Punga Decorative Ltd | Construction | 2025 |
| Pura Vida Estates Ltd | Real estate | 2024 |
| Pure Medi Leaf Ltd | Financial services | 2024 |
| Pure Organic Fruit & Vegetable Ltd | Wholesale & retail | 2024 |
| Pure Stylish Ltd | Other services | 2025 |
| Pure Wembley Property Ltd | Real estate | 2019 |
| Pureearthgems Limited | Manufacturing | 2026 |
| Purple Cleaning Services Ltd | Administrative & support | 2024 |
| Puzzles Property Management Limited | Construction | 2025 |
| Pvyco Limited | Wholesale & retail | 2026 |