| Ozone Developments Limited | Construction | 1998 |
| Ozzie's Services Ltd | Other services | 2017 |
| P & J Chalker Property Management Limited | Real estate | 2018 |
| P & S Auto Services Limited | Manufacturing | 2000 |
| P G Sailing Limited | Arts & recreation | 2008 |
| P J Lambert Ltd | Construction | 2004 |
| P.E. Barton Limited | Construction | 1998 |
| P.G. Witney & SON Electrical Limited | Construction | 2003 |
| Paintman Limited | Wholesale & retail | 2002 |
| Palmer FRY Building Surveying Services Limited | Extraterritorial | 1999 |
| Palmer FRY Limited | Extraterritorial | 1992 |
| Pangolin Limited | Professional & scientific | 1990 |
| Paradox Limited | Wholesale & retail | 2007 |
| Paramount Home Improvements Limited | Professional & scientific | 1999 |
| Paramount Property Maintenance Limited | Construction | 2002 |
| Paramount Window & Fascia Limited | Construction | 1992 |
| Parchmentco Ltd | Wholesale & retail | 2023 |
| Park Developments (Southern) Limited | Construction | 2000 |
| Park Lane Technologies Limited | Construction | 1996 |
| Parkertex Fabrics Limited | Professional & scientific | 2001 |
| Parkstone Estate & Letting Agents Limited | Professional & scientific | 2006 |
| Parodine-Baker & Co. Limited | Professional & scientific | 2005 |
| Parsons Refrigeration Limited | Construction | 2006 |
| Password Consultants Limited | Information & communication | 1984 |
| Paul Clark Consulting Limited | Professional & scientific | 2009 |
| Paul D Baird Limited | Professional & scientific | 2006 |
| Paul Smith Telecoms Ltd | Information & communication | 2003 |
| Paul Underhill Limited | Professional & scientific | 2004 |
| PC Healthcare Computers Limited | Wholesale & retail | 2002 |
| PCS Pipeline Services Ltd | Construction | 2000 |
| Peacock and Murphy Opticians Limited | Wholesale & retail | 2005 |
| Peacock Interiors Limited | Information & communication | 1983 |
| Penta Premium Mart Ltd | Wholesale & retail | 2025 |
| Perimetrics Limited | Other services | 1995 |
| Perry & SON Ltd | Construction | 2003 |
| Perry Translations Limited | Professional & scientific | 2003 |
| Perryfields Limited | Wholesale & retail | 2003 |
| Peter Rodgers Golf Ltd. | Arts & recreation | 2002 |
| Phytodiet Limited | Extraterritorial | 2007 |
| Picture Business (Bournemouth) Limited | Wholesale & retail | 2004 |
| Picture Digital Limited | Wholesale & retail | 1999 |
| Pippin Management Company Limited | Households | 2001 |
| PJC Construction Limited | Construction | 2003 |
| Plastic Reinforcement Fabrics Limited | Manufacturing | 1984 |
| Platinum Cars (Bournemouth) Limited | Transport & logistics | 2005 |
| Playmore Leisure Limited | Hospitality | 2003 |
| Plumbers Online Limited | Construction | 1998 |
| Plumbley Meadows Management Limited | Households | 1997 |
| PMB Management Limited | Professional & scientific | 1999 |
| POD Films Limited | Information & communication | 2007 |
| Polyfoam Ltd | Administrative & support | 2019 |
| Poole Bay Funding Limited | Financial services | 2003 |
| Poole Harbour Boardsailing Limited | Wholesale & retail | 2002 |
| Poole Kitchens Limited | Wholesale & retail | 2005 |
| Poole Nominees II Limited | Professional & scientific | 1999 |
| Poole Nominees Limited | Professional & scientific | 1999 |
| Poole Quay Boat Haven Limited | Arts & recreation | 2003 |
| Poole Speedway Limited | Arts & recreation | 2002 |
| Pope Properties Limited | Real estate | 2006 |
| Porkys Place Ltd | Agriculture & fishing | 2012 |
| Port Regis School Limited | Education | 1947 |
| Portchester Lodge Management Company Limited | Real estate | 1999 |
| Portland Pizza Ltd | Extraterritorial | 2024 |
| Poulton & Lockyer (Builders) Limited | Construction | 1973 |
| Poundbury Gardens Limited | Wholesale & retail | 1990 |
| Pragma Limited | Professional & scientific | 2007 |
| Prasanna 81 Limited | Wholesale & retail | 2021 |
| Premier Bites Limited | Hospitality | 2006 |
| Premier Home Improvements Ltd | Construction | 2006 |
| Premier Rooms - Bournemouth Limited | Extraterritorial | 2006 |
| Premier Rooms UK Limited | Extraterritorial | 2005 |
| Preset Calibration Services Limited | Manufacturing | 1986 |
| Preventive Lifestyle Medicine Ltd | Health & social care | 2009 |
| Prima (Western) Limited | Wholesale & retail | 2005 |
| Prime Steel and Alloys Ltd | Manufacturing | 2025 |
| Primera Sports Limited | Wholesale & retail | 2003 |
| Primetower Development Company Ltd | Construction | 2006 |
| Primetower Investment Company Ltd | Construction | 2006 |
| Primetower South-West Ltd | Construction | 2006 |
| Primetower Southern Ltd | Construction | 2006 |
| Print Solutions (.Co.Uk) Limited | Wholesale & retail | 1987 |
| Proenglish Limited | Wholesale & retail | 2004 |
| Professional Beauty Care Limited | Other services | 2007 |
| Profile 3 Limited | Construction | 1997 |
| Propco (Blackmoor) Limited | Real estate | 2023 |
| Property Management Services (Wessex) Limited | Real estate | 2002 |
| PS21 Limited | Information & communication | 1995 |
| Pukka Pads UK Limited | Professional & scientific | 2008 |
| Pullman Premier Leisure Limited | Real estate | 1988 |
| Purbeck Art Ltd. | Professional & scientific | 1989 |
| Pure Electric Solutions Limited | Construction | 2022 |
| Purenet Limited | Information & communication | 1999 |
| Purlieu Properties (Sherborne) Ltd | Hospitality | 1975 |
| Q.J. Hull Limited | Construction | 2002 |
| QHI Holdings Limited | Administrative & support | 2012 |
| QT Agri Limited | Agriculture & fishing | 2021 |
| Quaike Design & Communication Limited | Administrative & support | 2003 |
| Quantum Discount Limited | Wholesale & retail | 2002 |
| Quarr Builders Limited | Construction | 2002 |
| Quay House Management Company Limited | Households | 2002 |