| Paris Smith Trust Corporation Limited | Professional & scientific | 2009 |
| Parishram Limited | Hospitality | 2022 |
| Park Centrale RTM Company Limited | Households | 2025 |
| Park Dene Management Limited | Real estate | 1999 |
| Park Gate Clinic Ltd | Health & social care | 2004 |
| Park Gate DRY Cleaners Limited | Administrative & support | 2017 |
| Park Gate Fish and Chips Ltd | Hospitality | 2023 |
| Park Gate Nail Beauty Ltd | Other services | 2024 |
| Park Gate Spice Ltd | Hospitality | 2018 |
| Park Lane Block Management Limited | Real estate | 2008 |
| Park Lane Commercial Property Limited | Real estate | 2014 |
| Park News Limited | Wholesale & retail | 2023 |
| Park Road (Winchester) Management Company Limited | Households | 2003 |
| Park View (Christchurch) Management Company Limited | Households | 2016 |
| Parker Adams Boat Sales Ltd | Wholesale & retail | 2019 |
| Parker Adams Holdings Ltd | Financial services | 2026 |
| Parker Elite Hire Limited | Transport & logistics | 2023 |
| Parker Payne Developments Limited | Real estate | 2012 |
| Parker's Development's Ltd | Manufacturing | 2023 |
| Parkerbaits Ltd | Manufacturing | 2021 |
| Parkes Autos Ltd | Wholesale & retail | 2024 |
| Parkhouse the Jeweller Limited | Extraterritorial | 2013 |
| Parklands House Ltd | Manufacturing | 2014 |
| Parklands Property Ltd | Extraterritorial | 2018 |
| Parklife Community Interest Company | Hospitality | 2010 |
| Parklink Limited | Real estate | 2017 |
| Parks Composite Limited | Other services | 2016 |
| Parmiolo Projects Ltd | Construction | 2023 |
| Parneys Designs Limited | Professional & scientific | 2014 |
| Parrish Engineering Limited | Manufacturing | 2009 |
| Parrot IT Solutions Ltd | Information & communication | 2020 |
| Parry Jones Property Ltd | Real estate | 2025 |
| Partlea Sober Ltd | Hospitality | 2023 |
| Partners in Prosciutto Ltd | Hospitality | 2026 |
| Partrack Limited | Manufacturing | 1986 |
| Partridge of Hampshire Holdings Limited | Financial services | 2017 |
| Partridge of Hampshire Limited | Wholesale & retail | 2012 |
| Pasadena Dental Practice Limited | Health & social care | 2007 |
| Pasagoa Limited | Professional & scientific | 2014 |
| Pasarguard Security Limited | Administrative & support | 2022 |
| Pasha Lettings Ltd | Real estate | 2016 |
| Pashlo Ltd | Wholesale & retail | 2026 |
| Pasnas Trustee Limited | Financial services | 2026 |
| Pass Intensive Ltd | Education | 2025 |
| Passfield Mill Ltd. | Real estate | 2012 |
| Passive Ltd | Professional & scientific | 2017 |
| Passworthy Limited | Education | 2024 |
| Past Exports Ltd | Wholesale & retail | 2026 |
| Past Routes Limited | Information & communication | 2022 |
| Pasteur & Fleming Pharmaceuticals Ltd | Manufacturing | 2025 |
| Pasture Foods Ltd | Wholesale & retail | 2025 |
| Paszkiewicz Ltd | Other services | 2019 |
| PAT Cotter Industrial Coating Specialist Limited | Construction | 2017 |
| PAT Staples Interiors Limited | Wholesale & retail | 1992 |
| Pat's Cats Cattery Limited | Other services | 2026 |
| Pat's Garage (Lyndhurst) Limited | Wholesale & retail | 1946 |
| Pat's Sandwich Bars Limited | Hospitality | 2020 |
| Patel Express Limited | Transport & logistics | 2025 |
| Patel Haulage Ltd | Transport & logistics | 2022 |
| Paterson Centre Limited | Professional & scientific | 2024 |
| Pathfinder Personnel Limited | Administrative & support | 1996 |
| Pathfinder Personnel Sheerness Limited | Transport & logistics | 2007 |
| Pathfinity Ltd | Wholesale & retail | 2022 |
| Pathlyco Ltd | Information & communication | 2026 |
| Pathway 360 Care Limited | Health & social care | 2019 |
| Patient Ltd | Health & social care | 2026 |
| Patiman Ltd | Information & communication | 2025 |
| Patisserart Ltd | Hospitality | 2025 |
| Patmec Ltd | Wholesale & retail | 2011 |
| Patrascu Site Services Ltd | Construction | 2014 |
| Patriarchy Ltd | Education | 2023 |
| Patricia Duarte Limited | Health & social care | 2021 |
| Patrick Horwood Communications Ltd | Professional & scientific | 2014 |
| Pattern Publicity Limited | Professional & scientific | 2018 |
| Patterson Tribe Builders Limited | Construction | 2010 |
| Patti-Robbo Pharmaceutical & Medical Services Ltd | Health & social care | 2026 |
| Paty Delivery Ltd | Transport & logistics | 2026 |
| Paul and David Creeden Holdings Ltd | Financial services | 2023 |
| Paul Baker Custom Metalwork Ltd | Wholesale & retail | 2012 |
| Paul Budden Installations Limited | Professional & scientific | 2006 |
| Paul Cass Landscapes Ltd | Construction | 2018 |
| Paul Dunnings Limited | Wholesale & retail | 2006 |
| Paul Gray Associates Limited | Construction | 2016 |
| Paul Gray IT Consulting Ltd | Information & communication | 2016 |
| Paul Joyce Electrical Ltd | Construction | 2014 |
| Paul Milburn Transport Ltd | Transport & logistics | 2009 |
| Paul Murray PLC | Wholesale & retail | 1974 |
| Paul Olsen Electrical Ltd | Construction | 2024 |
| Paul S Nutbrown Ltd | Transport & logistics | 2024 |
| Paul Stevens Estate Management Services Ltd | Construction | 2025 |
| Paul T & Edward Oberon Ltd | Information & communication | 2022 |
| Paul Taylor Crypto Trading Limited | Professional & scientific | 2022 |
| Paul Transportation Ltd | Transport & logistics | 2018 |
| Paul Watkiss Associates Limited | Professional & scientific | 2005 |
| Paulasa Limited | Professional & scientific | 2018 |
| Paulino Ltd | Transport & logistics | 2016 |
| Paullie Skin Ltd | Wholesale & retail | 2024 |
| Pavel Logistic Limited | Transport & logistics | 2025 |
| Pavement Management (York) Limited | Extraterritorial | 2006 |
| Pavic Homes Limited | Real estate | 2023 |