| Phuse Media Limited | Information & communication | 2005 |
| Physiotherapy and Optometry Services Ltd | Health & social care | 2025 |
| Picante Essex Limited | Hospitality | 2021 |
| Picante Pictures Limited | Information & communication | 2014 |
| PIE Investment Ltd | Real estate | 2024 |
| Pier View Hotel Limited | Hospitality | 2007 |
| Pineapple Construction Ltd | Construction | 2025 |
| Ping Renewables Ltd | Construction | 2025 |
| Ping Sun YA Limited | Hospitality | 2016 |
| Pink Lion CRM Ltd | Information & communication | 2018 |
| Pink Plant Ltd | Administrative & support | 2018 |
| Pink Vinyl Limited | Information & communication | 2020 |
| PIONEER88 Properties Ltd | Households | 2020 |
| PIP (Phypers Investment Properties) Limited | Real estate | 2024 |
| Pistolgolf Limited | Arts & recreation | 2026 |
| Pitsea Dental Laboratory Limited | Manufacturing | 2002 |
| Pitsea Vaping Limited | Wholesale & retail | 2022 |
| Pivotal Talent Ltd | Arts & recreation | 2024 |
| Pixangle Property Marketing Ltd | Administrative & support | 2011 |
| Pizza Town Express Limited | Hospitality | 2026 |
| PJ Moore Consultancy Limited | Information & communication | 2007 |
| PJ Properties Essex Ltd | Real estate | 2022 |
| PJH Productions Ltd | Arts & recreation | 2025 |
| Pk&Co Ltd | Professional & scientific | 2019 |
| Plan Connect Ltd | Information & communication | 2025 |
| Plan IT Support Limited | Information & communication | 2010 |
| Planet Construction Group Limited | Construction | 2024 |
| Planet Positive Production Ltd | Professional & scientific | 2024 |
| Plant Powered Protein Ltd | Hospitality | 2025 |
| Platinum Data Limited | Construction | 2020 |
| Platinum Freight Limited | Transport & logistics | 2019 |
| Platinum Talent Solutions Global Limited | Information & communication | 2024 |
| Platinum Talent Solutions Ltd. | Information & communication | 2021 |
| Plats Consultants Limited | Administrative & support | 2013 |
| PLD Payroll Ltd | Hospitality | 2021 |
| Pledge 2 Sparkle Limited | Administrative & support | 2019 |
| Pledge Mortgages Ltd | Financial services | 2026 |
| Plenty of Colours Limited | Construction | 2017 |
| Plenumi Investments Limited | Real estate | 2017 |
| Plumb Essex Limited | Construction | 2025 |
| Plumbco Services Limited | Construction | 2018 |
| Plumbfit-Uk Limited | Construction | 2020 |
| Plumbing & Heating (Eastwood) Ltd | Other services | 2018 |
| Plumbing & Heating (Leigh) Ltd | Construction | 2025 |
| Plus Ultra Shipping Limited | Transport & logistics | 2026 |
| PMC (Essex) Ltd | Extraterritorial | 2019 |
| PMC International Logistics Limited | Transport & logistics | 2003 |
| PMG Paint Limited | Construction | 2019 |
| PN Partners Ltd | Wholesale & retail | 2023 |
| PNK Powered Access Engineering Ltd | Manufacturing | 2018 |
| PNK Powered Access Servicing Ltd | Professional & scientific | 2024 |
| PNP Property & Building Services Ltd | Construction | 2024 |
| Pocket Paradise Ltd | Real estate | 2024 |
| Pocket Rocket Academy Limited | Administrative & support | 2017 |
| Pocket Rocket Consulting Limited | Administrative & support | 2017 |
| Pocket Rocket Marketing Limited | Administrative & support | 2017 |
| Point Break Campers Ltd | Wholesale & retail | 2021 |
| Pokéshed Ltd | Wholesale & retail | 2025 |
| POL Valuers Limited | Administrative & support | 1999 |
| Polar Sun Consulting Ltd | Professional & scientific | 2023 |
| Polestar Property Group Limited | Real estate | 2025 |
| Pooch and Mooch Ltd | Other services | 2025 |
| Poor Ernest Ltd | Arts & recreation | 2017 |
| POP Display Limited | Extraterritorial | 2006 |
| POP Display UK Limited | Administrative & support | 2016 |
| POP Haulage Limited | Transport & logistics | 2015 |
| Popadom (Chatham) Ltd | Hospitality | 2017 |
| Poppets Pre-School (Little Wakering) | Education | 2012 |
| Poppyfield Lodge Limited | Financial services | 2016 |
| Poptasia Limited | Arts & recreation | 2022 |
| Port Technical Services Limited | Construction | 2019 |
| Portawater UK Ltd | Water & waste | 2013 |
| Portland Audio Limited | Information & communication | 2002 |
| Positise Limited | Health & social care | 2024 |
| Positive Curve Limited | Professional & scientific | 2018 |
| Posthumous Credit Limited | Professional & scientific | 2025 |
| Posthurst Limited | Professional & scientific | 2003 |
| Postroom-Online (UK) Limited | Extraterritorial | 2010 |
| Potato Potato Ltd | Hospitality | 2025 |
| Powell Construction and Development Ltd | Construction | 2018 |
| Power Distribution Services Limited | Construction | 2019 |
| Power Plant Projects Ltd | Construction | 2014 |
| Power Recovery Solutions Ltd | Water & waste | 2021 |
| Powerlec Electrical & Testing Limited | Construction | 2013 |
| PP AK Group Ltd | Financial services | 2025 |
| PP Group Investments Ltd | Real estate | 2026 |
| PPM Greenwich Limited | Households | 2012 |
| Pprs Trading Ltd | Wholesale & retail | 2012 |
| PPS Business Transfer Agents Ltd | Real estate | 2025 |
| Pranathi Technologies Limited | Information & communication | 2014 |
| Pre-Bio(Uk) Limited | Health & social care | 2023 |
| Precision Assistants Ltd | Professional & scientific | 2024 |
| Precision Paintworks Ltd | Construction | 2023 |
| Premier Carriers (Same Day) International Ltd | Transport & logistics | 2006 |
| Premier Carriers Ltd | Transport & logistics | 2000 |
| Premier Contract Flooring & Decor Ltd | Construction | 2005 |
| Premier Landscaping & Paving Ltd | Administrative & support | 2020 |
| Premium Development Group Ltd | Professional & scientific | 2024 |
| Premium Home Renovations Group Limited | Construction | 2026 |
| Preservation Treatments (Holdings) Limited | Real estate | 1999 |