| Padelouk Ltd | Manufacturing | 2026 |
| Padmc Consulting Limited | Professional & scientific | 2018 |
| Paint Air Consult Ltd | Manufacturing | 2023 |
| Paint Dynamix Bodyshop Ltd | Wholesale & retail | 2024 |
| Paintiqe Decorating & Refurbishments Ltd | Construction | 2023 |
| PAL Estates (Sussex) Ltd | Construction | 2018 |
| Pallant Hair Limited | Other services | 2008 |
| Pallant House Gallery | Arts & recreation | 2004 |
| Pallant House Gallery Services Limited | Extraterritorial | 2005 |
| Pallant Investments Limited | Real estate | 2018 |
| Pallant Managed Services Limited | Administrative & support | 2016 |
| Pallant Medical Limited | Administrative & support | 2006 |
| Pallant Stores Ltd | Wholesale & retail | 2024 |
| Pallant Surveyors Limited | Professional & scientific | 2024 |
| Pallantside Limited | Construction | 2016 |
| Palm Court Apartments Limited | Real estate | 2014 |
| PAM Foden & Associates Ltd | Other services | 2017 |
| PAN Securities | Financial services | 1963 |
| Pankhania Portfolio Ltd | Real estate | 2025 |
| Panther Truck Rental Limited | Administrative & support | 2012 |
| Papaya Research Limited | Professional & scientific | 2002 |
| Papaya-V Limited | Information & communication | 2024 |
| Parade Group Limited | Real estate | 2017 |
| Parallele Lines Limited | Hospitality | 1988 |
| Parent Carers Academy Limited | Education | 2023 |
| Parfait Civils and Groundworks Ltd | Construction | 2020 |
| Parham Builders Limited | Construction | 2001 |
| Park Farm Diversity Limited | Agriculture & fishing | 2016 |
| Park Lane 6 Limited | Real estate | 2020 |
| Park RD Dental Practice (IOW) Limited | Health & social care | 2015 |
| Parker & Gibbs Ltd | Professional & scientific | 2017 |
| Parkers of Chichester Limited | Transport & logistics | 1965 |
| Parkglobe Consultants Limited | Information & communication | 2002 |
| Parkglobe Holdings Limited | Professional & scientific | 2009 |
| Parkinson Property Management Ltd | Real estate | 2021 |
| Parlocks Ltd | Real estate | 2022 |
| Parsec Education Limited | Information & communication | 2024 |
| Part Protection and Masking Solutions Services Ltd | Professional & scientific | 2021 |
| Partnerup Limited | Information & communication | 2023 |
| Pascoe Interiors Limited | Professional & scientific | 2008 |
| PASEDA360 Limited | Professional & scientific | 2023 |
| Passingham Contractors Limited | Wholesale & retail | 1986 |
| Passlift Property Management Limited | Households | 1988 |
| Patch Education Ltd | Education | 2025 |
| Patching Properties Limited | Real estate | 1963 |
| Paterson Restorations Ltd | Other services | 2009 |
| Pathway Consulting Services Limited | Professional & scientific | 2016 |
| Pathways of Hope Limited | Health & social care | 2017 |
| Patrick Johnston Limited | Administrative & support | 2008 |
| Patten Penguin Pools Ltd | Construction | 2025 |
| Paua Trading Limited | Professional & scientific | 2016 |
| Paul a Farquharson Limited | Wholesale & retail | 2019 |
| Paul Crowley Ltd | Construction | 2012 |
| Paul DA Silva Associates Ltd | Professional & scientific | 2021 |
| Paul RAS Limited | Health & social care | 2020 |
| Paul White Addictions Limited | Health & social care | 2022 |
| Paulynnette Ltd | Wholesale & retail | 2024 |
| Pavco Limited | Hospitality | 1995 |
| PAW Paddock Holdings Limited | Financial services | 2023 |
| PAW Paddock Limited | Agriculture & fishing | 2019 |
| Paws Box Ltd | Other services | 2024 |
| Payless 4 Vets Ltd | Professional & scientific | 2007 |
| Payne Investment Group Limited | Real estate | 2018 |
| Payne Sherlock Secretarial Services Limited | Other services | 2003 |
| Payroll Perks Ltd | Professional & scientific | 2026 |
| Pbdb Holdings Limited | Financial services | 2024 |
| Pbservices Limited | Professional & scientific | 2013 |
| Pbsm Ltd | Professional & scientific | 2026 |
| PCP Painters & Decorators Ltd | Construction | 2016 |
| PDB Door Seals Limited | Manufacturing | 2020 |
| PDB Seals Ltd | Extraterritorial | 2009 |
| PDF Properties Limited | Real estate | 2021 |
| PDK Maintenance Ltd | Other services | 2017 |
| PDM Dermatology Limited | Health & social care | 2024 |
| PDW Commodity Consulting Ltd | Energy | 2026 |
| Peak VMG Ltd | Professional & scientific | 2019 |
| Pearl Escapes Limited | Extraterritorial | 2011 |
| Pebble Management Services Limited | Wholesale & retail | 2014 |
| Pebbles Fish and Wine Bar Limited | Hospitality | 2010 |
| Pecorino Wittering Ltd | Hospitality | 2024 |
| Pegaseal Ltd | Manufacturing | 2015 |
| Pegasus Property Company Limited | Real estate | 2000 |
| Pegram Properties Limited | Real estate | 2014 |
| Peke Performance Ltd | Other services | 2014 |
| Pelican Jigsaw Limited | Administrative & support | 2008 |
| Pelush Limited | Hospitality | 2024 |
| PEN & Lolly Ltd | Wholesale & retail | 2017 |
| PEN Case Ltd | Information & communication | 2023 |
| PEN81 Ltd | Professional & scientific | 2017 |
| Penfold (UK) Ltd | Real estate | 2005 |
| Penfold Metallising Co.Limited | Manufacturing | 1954 |
| Peninsula Plumbing Limited | Construction | 2023 |
| Penn Equity Limited | Real estate | 2023 |
| Penn Plumbing Ltd | Construction | 2023 |
| Pennyacre Consulting Limited | Professional & scientific | 2026 |
| Pennyblacklifestyle&Consultancy Ltd | Wholesale & retail | 2020 |
| Pennyfeather Tutoring Ltd | Education | 2021 |
| Pennys Cafe Selsey Ltd | Hospitality | 2023 |
| Pension Partners Group Ltd | Professional & scientific | 2019 |
| Pentyl Investments Limited | Real estate | 2009 |