| Podbarn Ltd | Information & communication | 2002 |
| Pogoda Limited | Construction | 2006 |
| Point Green Limited | Professional & scientific | 2010 |
| Pointer Property Limited | Real estate | 2026 |
| Pointprice Limited | | 1987 |
| Polar Products Europe Limited | Manufacturing | 2018 |
| Polar Products Ltd | Other services | 2018 |
| Polaris Software Solutions Limited | Information & communication | 2002 |
| Polarox Ltd | Real estate | 2019 |
| Polished Earth Limited | Manufacturing | 2025 |
| Polka Dots Hair Design Limited | Other services | 2013 |
| Pollymel Limited | Real estate | 2006 |
| Poloandu Services Limited | Wholesale & retail | 2018 |
| Pontings Residential Sales Limited | Real estate | 2019 |
| POP Activation Ltd | Professional & scientific | 2016 |
| Porch House Limited | Construction | 2015 |
| Portal Foods Ltd | Wholesale & retail | 1988 |
| Portio Services Limited | Real estate | 2021 |
| Portway Projects Ltd | Real estate | 2025 |
| Potteries Premier Properties Ltd | Real estate | 2018 |
| Powell GEE Limited | Manufacturing | 1961 |
| Power CUP Ltd | Hospitality | 2024 |
| Power Portal Limited | Energy | 2016 |
| Powerful Memories Ltd | Information & communication | 2022 |
| Powerline Motors Limited | Manufacturing | 2020 |
| PP (Residential) Limited | Real estate | 2008 |
| Practical Products Ltd | Manufacturing | 2023 |
| Practically Positive Limited | Professional & scientific | 2011 |
| Praedium Partnership Ltd | Real estate | 2017 |
| Pramino Services Limited | Information & communication | 2021 |
| Precision List Corp Ltd | Professional & scientific | 2023 |
| Precision Pipeline and Civils Ltd | Construction | 2024 |
| Precision Screenprint Limited | Manufacturing | 1985 |
| Predatar Holdings Limited | Financial services | 2017 |
| Predatar Limited | Information & communication | 2017 |
| Premier Cars Banbury Ltd | Transport & logistics | 2023 |
| Premium-Equine Limited | Agriculture & fishing | 2025 |
| Prep Development Ltd | Professional & scientific | 2012 |
| Prepcare Day Nurseries Limited | Health & social care | 2014 |
| Pressure Wash Pros Limited | Administrative & support | 2025 |
| Prestige Group Solution Ltd | Construction | 2025 |
| Prestige Transfers Ltd | Transport & logistics | 2010 |
| Price Fleming Ltd | Administrative & support | 2011 |
| Primal Coaching Ltd | Other services | 2024 |
| Primary Care Systems (UK) Limited | Information & communication | 2005 |
| Primary Customer Data Limited | Professional & scientific | 2005 |
| PRIME7 MAT | Education | 2013 |
| Primestacks Ltd | Wholesale & retail | 2025 |
| Primrose Hill Farm Limited | Hospitality | 2016 |
| Print Cloud Limited | Information & communication | 2023 |
| Prints an INK Boutique Limited | Manufacturing | 2023 |
| Printworks (Brackley) Management Company Limited | Real estate | 2017 |
| Prism Store Ltd | Wholesale & retail | 2025 |
| Pristine Shine Services Ltd | Wholesale & retail | 2024 |
| Pro Gardens Limited | Agriculture & fishing | 2005 |
| Pro GRP Ltd | Manufacturing | 2023 |
| Pro Sales Store Ltd | Wholesale & retail | 2021 |
| Pro-Recruit Agency Ltd | Administrative & support | 2016 |
| PRO3 Consultancy Ltd | Information & communication | 2024 |
| PROBUILD-78 Ltd | Construction | 2019 |
| Process Advisory Partners Limited | Information & communication | 2026 |
| Process Engineering Specialists UK Limited | Professional & scientific | 2020 |
| Prodan Marius Transport Ltd | Transport & logistics | 2018 |
| Prodrive (Holdings) Limited | Professional & scientific | 1999 |
| Prodrive Advanced Technologies Limited | Extraterritorial | 2010 |
| Prodrive Automotive Technology (Europe) Limited | Professional & scientific | 1996 |
| Prodrive Engineering Limited | Extraterritorial | 2015 |
| Prodrive Investments Limited | Financial services | 1988 |
| Prodrive Motorsport Limited | Other services | 1983 |
| Prodrive Topco Limited | Financial services | 2023 |
| Prodrive Ventures Limited | Financial services | 2012 |
| Produce Warriors Limited | Wholesale & retail | 2012 |
| Product Bear Ventures Ltd | Professional & scientific | 2023 |
| Proengtech Solutions Limited | Professional & scientific | 2007 |
| Professional Delivery Ltd | Transport & logistics | 2026 |
| Professional Edge Resourcing Limited | Administrative & support | 1998 |
| Profetiq Ltd | Information & communication | 2025 |
| Proficio Coaching and Consulting Limited | Professional & scientific | 2018 |
| Profit Growth Services Limited | Administrative & support | 2003 |
| Profusion Property Limited | Real estate | 2017 |
| Proj-X Ltd | Construction | 2018 |
| Project 12 Limited | Professional & scientific | 2016 |
| Project Athena Bidco Limited | Financial services | 2022 |
| Project Athena Midco Limited | Financial services | 2022 |
| Project Athena Topco Limited | Financial services | 2022 |
| Project Integrated Care Collective Limited | Health & social care | 2021 |
| Project Lightweight Limited | Professional & scientific | 2015 |
| Propel Technology Limited | Professional & scientific | 2009 |
| Property Hive Software Limited | Information & communication | 2022 |
| Property THN Ltd | Real estate | 2023 |
| Propertyldn Ltd | Real estate | 2023 |
| Propertyyadder Ltd | Extraterritorial | 2024 |
| Proplan Consulting Limited | Professional & scientific | 2023 |
| Prosmoke BBQ Limited | Wholesale & retail | 2022 |
| Prospect 263 Limited | Administrative & support | 2025 |
| Prospectabase Limited | Professional & scientific | 2006 |
| Prospects Group Limited | Professional & scientific | 2023 |
| Prosser Carpentry & Building Ltd | Construction | 2016 |
| Prosser Development Limited | Construction | 2014 |
| Prosser Investments Limited | Real estate | 2017 |