| PMO Legal Services Limited | Professional & scientific | 2003 |
| PNS Projects Limited | Real estate | 2024 |
| Po-Boysmcr Limited | Hospitality | 2024 |
| Poaw Ltd | Wholesale & retail | 2017 |
| Podiatry Homevisit Services Ltd | Real estate | 2023 |
| Podiatry World Limited | Health & social care | 2014 |
| Poingdestre Property Limited | Real estate | 2023 |
| Point Thirteen Media Ltd | Professional & scientific | 2006 |
| POINT2POINT Fareham Ltd | Administrative & support | 2025 |
| Pointe Ahead Ltd | Financial services | 2012 |
| Pokephd Ltd | Wholesale & retail | 2023 |
| Poliris Limited | Financial services | 2016 |
| Polo 365 Ltd | Arts & recreation | 2018 |
| Polo Relocation Limited | Hospitality | 2024 |
| Polymedia Design Limited | Information & communication | 2020 |
| Pomme Central Charging Limited | Wholesale & retail | 2017 |
| Pompey Reclamation Limited | Real estate | 2019 |
| Pontefract Specsavers Hearcare Limited | Wholesale & retail | 2025 |
| Pontefract Specsavers Limited | Wholesale & retail | 1995 |
| Pontefract Visionplus Limited | Wholesale & retail | 1995 |
| Pontypool Specsavers Limited | Wholesale & retail | 2007 |
| Pontypool Visionplus Limited | Wholesale & retail | 2007 |
| Pontypridd Specsavers Hearcare Limited | Wholesale & retail | 2005 |
| Pontypridd Specsavers Limited | Wholesale & retail | 1994 |
| Pontypridd Visionplus Limited | Wholesale & retail | 1994 |
| Poole Bay Warehousing Limited | Transport & logistics | 2009 |
| Poole Joinery Windows Limited | Construction | 2000 |
| Poole Specsavers Hearcare Limited | Wholesale & retail | 2006 |
| Poole Specsavers Limited | Wholesale & retail | 1986 |
| Poole Visionplus Limited | Wholesale & retail | 1995 |
| Poolserve Limited | Wholesale & retail | 2014 |
| Pop-Up Spray Studios CIC | Arts & recreation | 2024 |
| Porcelain Leopard Ltd | Real estate | 2024 |
| Port Glasgow Specsavers Limited | Wholesale & retail | 2024 |
| Port Talbot Specsavers Limited | Wholesale & retail | 1984 |
| Portable Pies Ltd | Extraterritorial | 2023 |
| Portchapel Associates Ltd | Hospitality | 2023 |
| Portchester Auto Services Ltd | Wholesale & retail | 2025 |
| Portchester Grill Ltd | Hospitality | 2019 |
| Portchester Hair Salon & Barbers Ltd | Other services | 2022 |
| Portchester Healthcare Limited | Health & social care | 2015 |
| Portchester Physio & Performance Ltd | Health & social care | 2026 |
| Portchester Pipe Dreams Limited | Construction | 2007 |
| Portcullis Brewing Co. Ltd | Manufacturing | 2024 |
| Portfield Car Sales Ltd | Wholesale & retail | 2019 |
| Porthcawl Specsavers Limited | Wholesale & retail | 2013 |
| Porthmadog Specsavers Limited | Wholesale & retail | 2022 |
| Portishead Specsavers Limited | Wholesale & retail | 2009 |
| Portland Miller EA Ltd | Real estate | 2026 |
| Portsdean Heating Ltd | Extraterritorial | 2023 |
| Portsdean Technical Supplies & Services Limited | Construction | 1994 |
| Portsdown House Management Company Limited | Real estate | 2004 |
| Portsea Island Properties Limited | Real estate | 2016 |
| Portside Stays Ltd | Real estate | 2026 |
| Portslade Specsavers Limited | Wholesale & retail | 2017 |
| Portsmouth & South East Hampshire Chamber of Commerce and Industry | Other services | 1883 |
| Portsmouth A/C Limited | Administrative & support | 2004 |
| Portsmouth Cctv Limited | Real estate | 2022 |
| Portsmouth EYE Southern Limited | Administrative & support | 2025 |
| Portsmouth Inns Limited | Hospitality | 2016 |
| Portsmouth North END Specsavers Limited | Wholesale & retail | 2017 |
| Portsmouth Property Exchange Limited | Construction | 2019 |
| Portsmouth Quay Limited | Construction | 2017 |
| Portsmouth Road Developments Limited | Construction | 2019 |
| Portsmouth Specsavers Hearcare Limited | Wholesale & retail | 2005 |
| Portsmouth Specsavers Limited | Wholesale & retail | 1987 |
| Portsmouth Visionplus Limited | Wholesale & retail | 1998 |
| Portsmouth Windows Limited | Construction | 2020 |
| Portsview Plastering Ltd | Construction | 2019 |
| Posbrook Farm Management Company Limited | Households | 2008 |
| Posbrook Management Company Limited | Households | 2025 |
| Posh Bottoms Ltd | Wholesale & retail | 2025 |
| Potteries Estate Company Limited | Households | 1985 |
| Potters Bar Specsavers Limited | Wholesale & retail | 2023 |
| Potty for Puds Limited | Wholesale & retail | 2015 |
| Poulner Limited | Manufacturing | 2013 |
| Poundwise Portchester Ltd | Wholesale & retail | 2017 |
| Pour Vous UK Limited | Health & social care | 2004 |
| Powder Flush Limited | Construction | 2015 |
| Power of Positivity Limited | Professional & scientific | 2024 |
| Power Tecnique International Limited | Wholesale & retail | 1999 |
| Power Tecnique Limited | Wholesale & retail | 1991 |
| Power Tecnique Service Limited | Wholesale & retail | 2001 |
| Powerfully Pure Ltd | Health & social care | 2022 |
| Powerplus TCG Ltd | Wholesale & retail | 2025 |
| POWERPLUSTCG1 Ltd | Wholesale & retail | 2026 |
| Poynto Ltd | Financial services | 2025 |
| Poyraz Kebab Ltd | Hospitality | 2025 |
| PP (GB) Ltd | Other services | 2011 |
| Ppal Holdings Ltd | Financial services | 2024 |
| PPN Holdings Limited | Financial services | 2026 |
| Practical Solutions & Distribution Limited | Professional & scientific | 2022 |
| Practical Tools Initiative Limited | Professional & scientific | 2012 |
| Practice Management Outsourcing Limited | Administrative & support | 2021 |
| Practitioner Development UK Limited | Education | 2002 |
| Pranava Orthopaedics Limited | Financial services | 2026 |
| PRE2POST Marketing Ltd | Professional & scientific | 2026 |
| Precise Retail GP 1 Limited | Financial services | 2012 |
| Precise Retail Nominee 1 Limited | Financial services | 2012 |
| Precise Retail Nominee 2 Limited | Financial services | 2012 |