| Phillips Developments Limited | Real estate | 1993 |
| Philrich Consulting Ltd | Professional & scientific | 2011 |
| Phocal Investments (UK) Limited | Real estate | 2015 |
| Phoenix Commercial Solutions Limited | Information & communication | 2019 |
| Phoenix Contracts Bournemouth Limited | Construction | 2021 |
| Phoenix MMA Portsmouth Limited | Arts & recreation | 2017 |
| PHX Limited | Wholesale & retail | 2018 |
| Physalisit Ltd | Information & communication | 2012 |
| Pinebark Developments Ltd | Construction | 2014 |
| Pineridge Capital | Financial services | 2026 |
| Pineridge Properties Ltd | Real estate | 2022 |
| Pingarelli Properties Ltd | Real estate | 2024 |
| Pinnacle Safety Health & Hygiene Limited | Education | 1998 |
| Pinnacle Training Associates Limited | Education | 1996 |
| Pitch UP Aviation Limited | Transport & logistics | 2018 |
| PJ Weaver Plumbing & Heating Ltd | Construction | 2024 |
| PK ROO Properties Ltd | Real estate | 2024 |
| Planet Angry Limited | Professional & scientific | 2010 |
| Plant U Need Limited | Administrative & support | 2007 |
| Plants for Trade Ltd | Wholesale & retail | 2014 |
| Plated Ltd | Information & communication | 2015 |
| Platinum Laundry Services Ltd | Other services | 2020 |
| Plus Cover Limited | Other services | 2019 |
| Pncc Associates Limited | Real estate | 2009 |
| Poole Boat Company (Dorset) Limited | Professional & scientific | 2018 |
| Poole Crack and Buckle Ltd | Wholesale & retail | 2026 |
| Poole Security Services Limited | Administrative & support | 2023 |
| Poole Tyre & MOT Centre Limited | Wholesale & retail | 2011 |
| Poplar Property Maintenance Limited | Construction | 2024 |
| Portsmouth City Coaches Limited | Transport & logistics | 2018 |
| Postcode Cleaners (Hampshire) Ltd | Administrative & support | 2018 |
| Pots & Paint Ltd | Arts & recreation | 2024 |
| Power Audit UK Limited | Professional & scientific | 2012 |
| Powerknapp Ltd. | Wholesale & retail | 2016 |
| PPI Advice Ltd | Financial services | 2013 |
| Precious Beauty Room Ltd | Other services | 2026 |
| Premier Autos Group Limited | Wholesale & retail | 2025 |
| Premier Clean Ltd | Administrative & support | 2025 |
| Premier Plastering & Drylining Limited | Construction | 2014 |
| Prestige Organisation Limited | Construction | 2003 |
| Prestige Property Sourcing Limited | Real estate | 2021 |
| Preston Insurance Brokers LLP | | 2012 |
| Pricing Frontier Ltd | Information & communication | 2019 |
| Pride Solutions Ltd | Public administration | 2022 |
| Prime Forme Limited | Professional & scientific | 2014 |
| Priory Management & Services Limited | Professional & scientific | 1994 |
| Priory Services [1939] Limited | Financial services | 2022 |
| Pro Point Physio Ltd | Other services | 2019 |
| Probyn Electrical Ltd. | Energy | 2003 |
| Professional Construction Management Ltd | Construction | 2024 |
| Professional Property Solutions (UK) Limited | Real estate | 2011 |
| Progressive Learning College Limited | Education | 2000 |
| Project Penny Limited | Information & communication | 2023 |
| Property Wealth Insurance Brokers LLP | | 2013 |
| Property Wealth Insurance Services Ltd | Financial services | 2021 |
| Propgap 1 Limited | Construction | 2015 |
| Pryor Service Limited | Professional & scientific | 1985 |
| PSF Software Limited | Information & communication | 2025 |
| Psychic Light Limited | Other services | 2000 |
| Pullman Court Residents Association Limited | Households | 1990 |
| Pure Developments SW Ltd | Construction | 2019 |
| Puregt Limited | Professional & scientific | 2006 |
| Purple Workwear Ltd | Manufacturing | 2024 |
| Puzzle Operations & HR Business Support Limited | Professional & scientific | 2024 |
| Pwcm Ltd | Construction | 2009 |
| PWS Management Ltd | Real estate | 2014 |
| PY Care Ltd | Other services | 2022 |
| Q Sales and Lettings (Holdings) Ltd | Real estate | 2024 |
| Q Sales and Lettings Ltd | Real estate | 2017 |
| Quantum Optisphere Ltd | Real estate | 2024 |
| Quay Hunnings Ltd | Real estate | 2021 |
| Quest Genesys Limited | | 1974 |
| Quest House Properties Ltd | Real estate | 2002 |
| Questant Insight Partners Ltd | Professional & scientific | 2026 |
| R D E Services Limited | Construction | 2007 |
| R J Electrical Contracting Limited | Manufacturing | 2015 |
| R J T Precision Grinding Limited | Professional & scientific | 2018 |
| R M Fabrications (Group) Limited | Financial services | 2019 |
| R M Fabrications (Holdings) Limited | Financial services | 2019 |
| Raanch Ltd | Real estate | 2019 |
| Radipole Design Limited | Professional & scientific | 2023 |
| Raffplan Ltd | Professional & scientific | 2024 |
| Raising Pawfection Ltd | Other services | 2022 |
| Rapid Reclaims Limited | Financial services | 2013 |
| Rateview Ltd | Professional & scientific | 2013 |
| Rathley Holdings NO.3 Limited | Households | 2025 |
| RAW Artists Limited | Professional & scientific | 2017 |
| RAW Bookings Limited | Professional & scientific | 2017 |
| RAW Records Limited | Information & communication | 2018 |
| Rawlings Investments (Poole) Limited | Construction | 1984 |
| RAY Toomer Construction Limited | Construction | 2002 |
| RD Real Estate 7/2024 Limited | Real estate | 2024 |
| Rdwe Properties Limited | Real estate | 2023 |
| Re-Bild (Trade Marks) Limited | Professional & scientific | 1992 |
| Re-Nu Kitchens Limited | Wholesale & retail | 2002 |
| Read-Jones Limited | Information & communication | 2004 |
| Rebel Projects Ltd | Information & communication | 2014 |
| Red Earth Project Management Limited | Construction | 2007 |
| Redflag Limited | Real estate | 2021 |
| Redgauntlet Publications Limited | Information & communication | 2002 |