| Peel House 409LR Limited | Households | 2014 |
| Peirov Mirza Limited | Real estate | 2024 |
| Pelagos Estates Ltd | Construction | 2021 |
| Pelta Limited | Information & communication | 2022 |
| Pembroke House (Ferndown) Limited | Households | 2011 |
| PEN Hill Consulting Ltd | Professional & scientific | 2024 |
| Pencari Ltd | Public administration | 2011 |
| Pendragon Consulting Ltd | Information & communication | 2018 |
| Peneos Ltd | Professional & scientific | 2020 |
| Penfold Studio Ltd | Professional & scientific | 2024 |
| Penny's Mead Management Company Limited | Households | 1985 |
| Pentagon Construction Ltd | Construction | 2025 |
| People for Purpose HR & Learning Consultancy Ltd | Administrative & support | 2025 |
| Pepperminted Limited | Information & communication | 2019 |
| Peppertree Solutions LLP | | 2019 |
| Perception (Bournemouth) Limited | Professional & scientific | 1998 |
| Perfect Blue Limited | Manufacturing | 2024 |
| Perfect Finish Cleaning Solutions Limited | Administrative & support | 2015 |
| Perfect Finish Communal Cleaning Ltd. | Administrative & support | 2013 |
| Perglish Properties Limited | Professional & scientific | 2002 |
| Perimeter Protection Worldwide Limited | Administrative & support | 2015 |
| Permanent Makeup Dorset Ltd | Other services | 2025 |
| Perrington Lodge Consultancy Ltd | Professional & scientific | 2023 |
| Perry Metallurgical Ltd | Professional & scientific | 2022 |
| Persepolis Design Limited | Professional & scientific | 2019 |
| Personal Best Aesthetics Ltd | Health & social care | 2024 |
| Perspective Box Limited | Wholesale & retail | 2014 |
| Pestis Ltd | Other services | 2025 |
| Pet Suppawt Limited | Agriculture & fishing | 2020 |
| Petalworkz Ltd | Manufacturing | 2026 |
| Pete Read Limited | Construction | 2012 |
| Peter Appleton Capital Limited | Real estate | 2016 |
| Peter Appleton Venture Limited | Information & communication | 2015 |
| Peter Best (Jeremy Barrell) Treecare Ltd. | Administrative & support | 2003 |
| Peter Martin Consulting Limited | Professional & scientific | 2016 |
| Peter Tuson Limited | Real estate | 1967 |
| Peters Brae Consulting Ltd | Information & communication | 2019 |
| Petify Limited | Professional & scientific | 2022 |
| Pets by Plane Limited | Transport & logistics | 2013 |
| Pettersen Advisory and Consulting Limited | Professional & scientific | 2025 |
| PF Brickwork & Construction Ltd | Construction | 2021 |
| PGY Limited | Information & communication | 2015 |
| Pharma Consultancy Services Ltd | Professional & scientific | 2022 |
| Pharma Procurement Services Ltd | Wholesale & retail | 2013 |
| PHG Consulting Limited | Administrative & support | 2013 |
| Phil Mooney Services Ltd | Information & communication | 2017 |
| Phil Mossop Consulting Limited | Information & communication | 2025 |
| Philip Harvey Geomatics Limited | Professional & scientific | 2016 |
| Philippa Slinger Ltd | Professional & scientific | 2021 |
| Phill Bascombe Transport Limited | Transport & logistics | 2003 |
| Phoenix Classic Cars Limited | Wholesale & retail | 2003 |
| Phoenix Cyber Consulting Ltd | Information & communication | 2023 |
| Phoenix Imagineering Ltd | Professional & scientific | 2014 |
| Phoenix Marble and Granite Limited | Manufacturing | 1999 |
| Phoenix Property Developments Limited | Construction | 1996 |
| Phoenix Wood Fired Pizza Ltd | Hospitality | 2018 |
| Photo-Mechanical Services(Blackburn)Limited | Administrative & support | 1952 |
| Pi&H Ltd | Real estate | 2023 |
| Pi-Online Ltd | Information & communication | 2014 |
| PIC3 Productions LLP | | 2025 |
| Piccos of Wimborne Limited | Hospitality | 2002 |
| Pickle & Trousers Limited | Extraterritorial | 2016 |
| Picnic Foods Ltd. | Hospitality | 2007 |
| Pigeon Homes Limited | Construction | 2022 |
| Pilao Labs Ltd | Information & communication | 2019 |
| Pildo Labs Wessex Ltd | Transport & logistics | 2014 |
| Pilford Haven Limited | Professional & scientific | 2011 |
| Pinch Punch Improv Limited | Arts & recreation | 2024 |
| Pine Court (West Moors) Management Company Limited | Households | 2014 |
| Pinecone Management Limited | Real estate | 2015 |
| Pinelock Investments Ltd. | Construction | 2006 |
| Pines Cars of Wickham Limited | Other services | 2012 |
| Pinnacle Electrics Limited | Construction | 2016 |
| Pinpoint IT Solutions Limited | Information & communication | 2011 |
| PIP Smith Ltd | Professional & scientific | 2022 |
| Pique Interiors Limited | Construction | 2023 |
| Pirento Limited | Information & communication | 2022 |
| Pitch Black Photography Limited | Professional & scientific | 2009 |
| Pitsac Limited | Information & communication | 2012 |
| Pittacus Consultancy Ltd | Professional & scientific | 2017 |
| Pivotpoint Trading Systems Limited | Information & communication | 2024 |
| Pixel Dynamics Ltd | Administrative & support | 2016 |
| Pixel Phoenix Limited | Professional & scientific | 2025 |
| Pixpax Ltd | Arts & recreation | 2016 |
| Pizzamo Group Limited | Hospitality | 2022 |
| Pizzazz Property Solutions Ltd | Real estate | 2023 |
| PJ Consultancy Limited | Professional & scientific | 2025 |
| Pksilver Consulting Ltd | Information & communication | 2025 |
| PKW Communications Limited | Information & communication | 2012 |
| Places of Wonder CIC | Arts & recreation | 2025 |
| Places to Live Limited | Real estate | 2022 |
| Plane Sailing IO Ltd | Information & communication | 2021 |
| Planet & Plate Ltd | Professional & scientific | 2023 |
| Planex Controls Limited | Construction | 2019 |
| Planning Heroes Limited | Professional & scientific | 2024 |
| Plant Inspection & Certification Ltd | Manufacturing | 2003 |
| Planters Keys Apartments Management Company Limited | Households | 1995 |
| Plastic Sales Limited | Wholesale & retail | 2009 |
| Plastic TED Limited | Professional & scientific | 2021 |
| Platform One Group Limited | Financial services | 2014 |