| P G Electrics Limited | Construction | 1989 |
| P Harvey Construction Limited | Construction | 2007 |
| P&L Architects Limited | Professional & scientific | 2011 |
| P.J. Cole (Southern) Limited | Water & waste | 1996 |
| P.L.J Financial Services Ltd | Extraterritorial | 2012 |
| P.V.T. Limited | Real estate | 1987 |
| Pact Sport Ltd | Professional & scientific | 2026 |
| Page and Barber Ltd | Wholesale & retail | 2018 |
| Paget-Brown (UK) Limited | Professional & scientific | 2019 |
| Paladin Consulting Limited | Professional & scientific | 2007 |
| Palliass Ltd | Construction | 2014 |
| Panaseer Limited | Information & communication | 2014 |
| Panovus Group Limited | Financial services | 2025 |
| Panther Skates Ltd | Wholesale & retail | 2023 |
| Panther Skates UK. Ltd | Manufacturing | 2024 |
| Panther Sports Ltd | Manufacturing | 2024 |
| Panther Unlimited Limited | Manufacturing | 2024 |
| Para-Dox Paraplanning Ltd | Financial services | 2018 |
| Parabella Limited | Agriculture & fishing | 2013 |
| Parallel Performance Limited | Professional & scientific | 2026 |
| Parcours Velo Ltd | Wholesale & retail | 2016 |
| Pareto Shipbrokers Limited | Administrative & support | 2001 |
| Parfitt + Co Marketing Communications Ltd | Professional & scientific | 2024 |
| Parish Websites Limited | Information & communication | 2005 |
| Parkway Securities Limited | Real estate | 2002 |
| Parsonage Farm Catherington Ltd | Construction | 2024 |
| Partner Path UK Limited | Professional & scientific | 2025 |
| Partoy Ltd | Wholesale & retail | 2012 |
| PARTYS24 Limited | Wholesale & retail | 2025 |
| Parydon Limited | Professional & scientific | 2009 |
| Pascoe Villas Ltd | Real estate | 2018 |
| Pateman Construction (Surrey) Limited | Construction | 2017 |
| Patient Ready Ltd | Information & communication | 2025 |
| Pattesons Pickles Ltd | Extraterritorial | 2013 |
| Paul Burwood Limited | Extraterritorial | 2010 |
| Paul Clifford Property Services Ltd | Administrative & support | 2018 |
| Paul Scully Ltd | Other services | 2009 |
| PAW LEE Ltd | Wholesale & retail | 2022 |
| Paws on Board Ltd | Professional & scientific | 2009 |
| Pcamerona Consulting Limited | Information & communication | 2012 |
| PD100BOR Ltd | Energy | 2021 |
| PD100NIN Ltd | Energy | 2021 |
| PD151HEA Ltd | Energy | 2021 |
| PD192RET Ltd | Energy | 2021 |
| PD212BER Ltd | Energy | 2021 |
| PD300RON Ltd | Energy | 2021 |
| PD412WAR Ltd | Energy | 2021 |
| PD503HAN Ltd | Energy | 2021 |
| PD503SOU Ltd | Energy | 2021 |
| PD600GRO Ltd | Energy | 2021 |
| PD688IRO Ltd | Energy | 2021 |
| PD813ETY Ltd | Energy | 2021 |
| Peak Media RX Ltd | Professional & scientific | 2025 |
| Peal Homes Limited | Real estate | 2019 |
| Pear Tree Partnership Ltd | Information & communication | 2013 |
| Pegasus Properties Limited | Real estate | 2024 |
| Pegram Agencies Ltd | Wholesale & retail | 2022 |
| Pelagic Energy Development Ltd | Energy | 2018 |
| Pelmoco Ltd | Professional & scientific | 2020 |
| Penelope Rose Developments Limited | Construction | 2025 |
| Penman Detailing Ltd | Other services | 2013 |
| Pennine Trophies Limited | Wholesale & retail | 1987 |
| Pennycrest Consultancy Limited | Professional & scientific | 1987 |
| Penstock Tower Freehold Limited | Hospitality | 2013 |
| Pentagon View Limited | Professional & scientific | 2004 |
| Peoplespace Group Limited | Professional & scientific | 2016 |
| Peoplespace Limited | Professional & scientific | 2012 |
| Perfect Nail Studio Limited | Other services | 2023 |
| Performance and Analytics Consultants Ltd | Professional & scientific | 2019 |
| Periphas Ltd. | Information & communication | 2012 |
| Pershing Consultants Ltd | Professional & scientific | 2015 |
| Personal Best Consulting Ltd | Professional & scientific | 2011 |
| Personal Boardroom Limited | Professional & scientific | 2014 |
| Personal Services and Management Limited | Information & communication | 2014 |
| Pet SOC Limited | Wholesale & retail | 2023 |
| Peter Ford Associates Limited | Professional & scientific | 2014 |
| Peter Green Property Development Limited | Construction | 2023 |
| Peter Krelle Associates Limited | Professional & scientific | 2017 |
| Peter's Pancakes Limited | Extraterritorial | 2008 |
| Petersfield Engine House Ltd | Real estate | 2019 |
| Petersfield Road Winchester Ltd | Construction | 2023 |
| Petl II Ltd | Construction | 2018 |
| Petl Limited | Construction | 2018 |
| PEZ Electrical Limited | Manufacturing | 2013 |
| PFM Land & New Homes Ltd | Real estate | 2015 |
| Pharmabis Limited | Professional & scientific | 2010 |
| Pharmedicare Limited | Professional & scientific | 1980 |
| PHASE2 Solutions Ltd | Professional & scientific | 2011 |
| Phdi Limited | Construction | 2007 |
| Pheasant Close Management Company Limited | Extraterritorial | 2010 |
| Philippa Chapman Ltd | Health & social care | 2024 |
| Phoenixlilyrecords Ltd | Information & communication | 2014 |
| Phygital Limited | Professional & scientific | 2014 |
| Phygital Technology Limited | Professional & scientific | 2020 |
| Physio & Sport Consultancy Ltd | Other services | 2011 |
| Physio Scope Limited | Health & social care | 2010 |
| Pickle & Winch Ltd | Hospitality | 2021 |
| Picklecourts Ltd | Construction | 2023 |
| Pilates by Georgia Ltd | Arts & recreation | 2018 |
| Pilgrims of Hindhead Limited | Real estate | 1982 |