| Polevolt Fish Ltd | Agriculture & fishing | 2025 |
| Polgear Limited | Financial services | 2015 |
| Polish Saturday School in Bournemouth Ltd | Education | 2021 |
| Polished Paws Christchurch Ltd | Wholesale & retail | 2025 |
| Pollock Property Investments Ltd | Real estate | 2023 |
| Polyhose (UK) Limited | Administrative & support | 1985 |
| Polyra Limited | Information & communication | 2019 |
| Pomerania Ltd | Wholesale & retail | 2019 |
| Ponder Solutions Limited | Wholesale & retail | 2012 |
| Pondok Limited | Hospitality | 2017 |
| Pony Dayz Ltd | Agriculture & fishing | 2019 |
| Pool Snooker Leisure Limited | Wholesale & retail | 2003 |
| Poole Academy of Dance Limited | Education | 2007 |
| Poole Bay Pharmacy Ltd | Wholesale & retail | 2008 |
| Poole Bay Podiatry Ltd | Health & social care | 2018 |
| Poole Body Works Limited | Wholesale & retail | 2008 |
| Poole Car Wash Ltd | Professional & scientific | 2021 |
| Poole Harbour Estates Limited | Real estate | 1960 |
| Poole Harbour Festival Trading Ltd | Administrative & support | 2025 |
| Poole Hill Bars Limited | Hospitality | 2025 |
| Poole Marina Limited | Extraterritorial | 1981 |
| Poole Old Town & Quay Events Limited | Arts & recreation | 2023 |
| Poole Pallets & Packaging Limited | Manufacturing | 2012 |
| Poole Pottery Limited | Extraterritorial | 2021 |
| Poole Quay Residents Company Limited | Households | 2001 |
| Poole RAW Pet Food Ltd | Wholesale & retail | 2016 |
| Poole Self Storage Limited | Transport & logistics | 2025 |
| Poole Stevedoring Services Limited | Transport & logistics | 2005 |
| Poole Together Ltd | Administrative & support | 2001 |
| Poole Town FC Kids Initiative CIC | Education | 2023 |
| Poole Town Football Club (1991) Limited | Arts & recreation | 1991 |
| Poole Van Centre Ltd | Wholesale & retail | 2018 |
| Poole Violins Limited | Wholesale & retail | 2023 |
| POP Paper City Ltd | Information & communication | 2019 |
| Popa Distribution Limited | Wholesale & retail | 2018 |
| Popcorn Audio Limited | Wholesale & retail | 2019 |
| Pope Accountancy Services Ltd | Professional & scientific | 2021 |
| Pope Construction Limited | Construction | 2010 |
| Pope Investment Holdings Ltd | Real estate | 2024 |
| Pope Kyrellos Limited | Wholesale & retail | 2016 |
| Poplar Island Limited | Administrative & support | 2006 |
| Poppets Preschool Limited | Education | 2003 |
| Poppies Florist Bournemouth Limited | Wholesale & retail | 2012 |
| Porcheluxe Ltd | Manufacturing | 2025 |
| Port Evolution and Development (Africa) Limited | Professional & scientific | 2010 |
| Portadene Management Company Limited | Households | 1997 |
| Portchester Construction Ltd | Construction | 2015 |
| Portchester House Management Limited | Real estate | 2017 |
| Portchester Road Freehold Limited | Households | 2008 |
| Portchester Road Residents Association Limited | Households | 1994 |
| Porter Logistics Ltd | Transport & logistics | 2018 |
| Porthos Publishing Limited | Information & communication | 2012 |
| Portico Carpentry & Build Ltd | Construction | 2025 |
| Portland House Management Company Limited | Households | 1994 |
| Portman Holiday Lets Limited | Real estate | 2024 |
| Portman Stone Limited | Wholesale & retail | 2009 |
| Portman Stone Worktops Limited | Manufacturing | 2023 |
| Portobello Plumbers Ltd | Construction | 2021 |
| Portsmouth Grab Hire Ltd | Administrative & support | 2019 |
| Portsmouth Technopole Limited | Real estate | 2001 |
| Poseidon Bars Ltd | Hospitality | 2022 |
| Poseidon Marine Limited | Transport & logistics | 2006 |
| Posh Original Art Limited | Arts & recreation | 2017 |
| Position Focus Limited | Information & communication | 2002 |
| Positive Developments (Poole) Limited | Construction | 2014 |
| Positive Estates Limited | Real estate | 2013 |
| Positive Rentals Group Ltd | Households | 2022 |
| Positron Medical UK Ltd | Wholesale & retail | 2026 |
| Poster Works Limited | Manufacturing | 2012 |
| POT and Grill Ltd | Hospitality | 2023 |
| POT to Trot Limited | Hospitality | 2019 |
| Potentia Domos Limited | Real estate | 2024 |
| Potter and Pollard Consultancy Ltd | Professional & scientific | 2025 |
| Potter and Pollard Ltd | Professional & scientific | 2019 |
| Pound Lane Properties Limited | Construction | 2022 |
| POW Holdings Limited | Financial services | 2025 |
| POW Powerofwomen Ltd | Information & communication | 2025 |
| POW Property Asbestos Limited | Water & waste | 2025 |
| POW Property Developments Ltd | Construction | 2022 |
| POW Property Investments Limited | Real estate | 2019 |
| Powell Propulsion & Engineering Ltd | Professional & scientific | 2024 |
| Powells Power Solutions Ltd | Construction | 2025 |
| Power & Peace Retreats Ltd | Arts & recreation | 2025 |
| Power Connection Services Ltd | Construction | 2024 |
| Power Cover UK Ltd | Households | 2019 |
| Power Projx Limited | Real estate | 2010 |
| Powerboat and Yacht Management Ltd | Transport & logistics | 2020 |
| Powered by Unicorns Ltd | Manufacturing | 2017 |
| PP & TP Holdings Limited | Financial services | 2024 |
| PPS South Ltd | Construction | 2024 |
| PRA Printing & Embroidery Ltd | Manufacturing | 2023 |
| Praestantia Consulting Limited | Information & communication | 2025 |
| Praesys One Nominees Limited | Financial services | 1998 |
| Praesys Two Nominees Limited | Financial services | 1998 |
| Prama Foundation | Health & social care | 2017 |
| Prama Services Limited | Administrative & support | 2018 |
| Pramacare | Health & social care | 1989 |
| Pramalife | Health & social care | 2017 |
| Pramatrade Limited | Health & social care | 2017 |
| Prasanth Ltd | Wholesale & retail | 2025 |