| Paradisiacal Ltd | Manufacturing | 2013 |
| Park Hall (Gosfield) Ltd | Professional & scientific | 2010 |
| Park Hall Property Holdings Ltd | Real estate | 2016 |
| Parker Davies Capital Limited | Professional & scientific | 2006 |
| Parker Davies Lande Limited | Professional & scientific | 1989 |
| Parkes Restorations Ltd | Wholesale & retail | 2020 |
| Partners in Welfare Ltd | Other services | 2014 |
| Party Party Event Hire Ltd | Administrative & support | 2013 |
| Pathfinder Asset Services Limited | Other services | 2021 |
| Patio Lifestyle Limited | Administrative & support | 2019 |
| Paul Brazier Kitchens, Bathrooms & Bedrooms Ltd | Construction | 2009 |
| Paul Deller Consultancy Ltd | Professional & scientific | 2024 |
| Pavely Construction Ltd | Construction | 2018 |
| Paye Developments Ltd | Administrative & support | 2017 |
| Paye Management Services Ltd | Administrative & support | 2017 |
| PC Units Limited | Real estate | 2002 |
| PCH Learning Solutions Limited | Professional & scientific | 2010 |
| Peacock Foods Ltd | Wholesale & retail | 2010 |
| Peerage Developments (London) Limited | Construction | 2001 |
| Pell-Eco Limited | Wholesale & retail | 2010 |
| Perfect Finish - Lady Decorators Ltd | Construction | 2023 |
| Performance Capability Group Limited | Wholesale & retail | 2024 |
| Peritus Building Service Engineers Limited | Construction | 2007 |
| Perrin & Nichols Management Company Limited | Real estate | 1988 |
| Perrin Interiors Ltd | Professional & scientific | 2010 |
| Perry Road Autos Limited | Extraterritorial | 2014 |
| Perspectus Ltd. | Extraterritorial | 2019 |
| Pet Crematorium London & South East Ltd | Other services | 2022 |
| Peter R Trew Limited | Construction | 2012 |
| Peter Rowland Transport Limited | Transport & logistics | 2016 |
| Peter Sykes & Sons Landscaping Ltd | Administrative & support | 2002 |
| PGS (International UK) Ltd | Wholesale & retail | 2022 |
| Philip & Black Limited | Administrative & support | 2014 |
| Philip Morphy Architects Limited | Professional & scientific | 2005 |
| Philp Farm Contracts Limited | Agriculture & fishing | 1998 |
| Phils Garden Services Limited | Administrative & support | 2012 |
| Phina Circus and Dance Entertainment Limited | Education | 2022 |
| Phina Circus and Dance Limited | Education | 2022 |
| Pica Pica Properties Ltd | Real estate | 2018 |
| Pineside Homes Limited | Professional & scientific | 2018 |
| Pipe Tech UK Ltd | Construction | 2005 |
| PIX Medical Ltd | Professional & scientific | 2014 |
| PJH Goston Ltd | Manufacturing | 2020 |
| PLACES4PEOPLE Limited | Professional & scientific | 2015 |
| Planetbuilders Limited | Information & communication | 1999 |
| Plant and Vehicle Services Limited | Manufacturing | 2010 |
| Plants That Grow Limited | Extraterritorial | 2012 |
| Plumbing & Drainage Solutions Limited | Construction | 2017 |
| Plume Coaching Ltd | Health & social care | 2020 |
| Poolworx Limited | Construction | 2009 |
| Poppet & Tdog Limited | Financial services | 2016 |
| Porter Investments Limited | Real estate | 2023 |
| Porter Projects Ltd | Professional & scientific | 2023 |
| Potato Agronomy and Technology Limited | Agriculture & fishing | 2025 |
| Practical Aviation Skills Ltd | Transport & logistics | 2020 |
| Premaberg Holdings Limited | Professional & scientific | 1987 |
| Premaberg Limited | Professional & scientific | 1978 |
| Premaberg Manufacturing Limited | Manufacturing | 1972 |
| Premier Cladding Solutions Ltd | Construction | 2014 |
| Prestige Industrial Roofing Supplies Limited | Construction | 2018 |
| Prestige Motor Sports (Essex) Ltd | Wholesale & retail | 2023 |
| Prewett Bizley Limited | Administrative & support | 2005 |
| Prewett Bizley Somerset Limited | Professional & scientific | 2013 |
| PRI Clean Ltd | Administrative & support | 2010 |
| Pride Xpress Ltd | Transport & logistics | 2015 |
| Primary Medical Property Health Developments Limited | Other services | 2001 |
| Prime Brands Group Limited | Administrative & support | 2023 |
| Prime Insulation Ltd | Extraterritorial | 2023 |
| Primec Compliance Limited | Professional & scientific | 2010 |
| Primec Ltd | Construction | 2004 |
| Primec Services Ltd | Other services | 2023 |
| Priors Property Solutions Limited | Real estate | 2021 |
| Pro Brokers Ltd | Professional & scientific | 2024 |
| Pro Delta Systems Limited | Information & communication | 1985 |
| Procurement DR Ltd | Professional & scientific | 2014 |
| Prodefence Ltd | Arts & recreation | 2012 |
| Profectus PM Ltd | Professional & scientific | 2018 |
| Propertylix Ltd | Construction | 2022 |
| Prospect Park Property Limited | Construction | 2013 |
| Protego Limited | Manufacturing | 2005 |
| PSA Engineering Ltd | Manufacturing | 2013 |
| Pscas Limited | Professional & scientific | 2015 |
| Publish Marketing Ltd | Information & communication | 2009 |
| Pullingers Leisure Vehicles Ltd. | Wholesale & retail | 1993 |
| PUP Chic Boutique Ltd | Wholesale & retail | 2020 |
| Pure Flooring Services Ltd | Construction | 2023 |
| Pure Sims Limited | Wholesale & retail | 2019 |
| Pure Training Services Limited | Professional & scientific | 2024 |
| PVS Data Ltd | Information & communication | 2020 |
| PVS Track Ltd | Administrative & support | 2011 |
| Pyromania Fireworks Ltd | Extraterritorial | 2011 |
| Pyvotall Ltd | Professional & scientific | 2023 |
| Q Court Freehold Cambridge Ltd | Households | 2018 |
| Quantic Accountancy Limited | Professional & scientific | 2007 |
| Quantic Wivenhoe Limited | Professional & scientific | 2016 |
| Quantum Ethos Management Services Ltd | Professional & scientific | 2018 |
| Queens Court, ST Margaret's Square Limited | Real estate | 2002 |
| Queens of Clean Essex Limited | Administrative & support | 2023 |
| R & D Ludlam Plumbing & Heating Limited | Construction | 2006 |
| R a K Services Ltd | Construction | 2017 |