| Paynes Preservation Ltd | Construction | 2026 |
| Payroll and Pension Solutions Ltd | Professional & scientific | 2013 |
| Pb-Vac Ltd | Wholesale & retail | 2004 |
| PCS Carpet & Commercial Cleaning Limited | Administrative & support | 2024 |
| PCS Professional Cleaning Solutions Ltd | Administrative & support | 2021 |
| PD Accounting Services Limited | Professional & scientific | 2003 |
| PDP Equipment Limited | Manufacturing | 2008 |
| Pdsi Ltd | Professional & scientific | 2006 |
| Peach & Guild Ltd | Wholesale & retail | 2026 |
| Peaches Beauty & Aesthetics Ltd | Other services | 2025 |
| Peak Construction Recruitment Ltd | Administrative & support | 2023 |
| Peak Pictures Limited | Information & communication | 2017 |
| Peak SK Ltd | Wholesale & retail | 2025 |
| Peakpath Marketing Ltd | Professional & scientific | 2024 |
| Pear Tree Potatoes Limited | Agriculture & fishing | 2007 |
| Pearce Marketing Consultants Limited | Professional & scientific | 2014 |
| Peardrop Design Limited | Professional & scientific | 2010 |
| Pearson & Co Productions Ltd | Professional & scientific | 2023 |
| Pearson & Francis Property Limited | Real estate | 2024 |
| Pearson Thomas Limited | Professional & scientific | 2016 |
| Peccan Limited | Real estate | 1992 |
| Pecos Care Services Ltd | Health & social care | 2024 |
| Pedro's Fish and Chips Takeaway Limited | Hospitality | 2025 |
| Pedro's Fish Restaurant & Take Away Limited | Hospitality | 2014 |
| PEJ Motors Ltd | Wholesale & retail | 2010 |
| Pelham Property Limited | Real estate | 2007 |
| Pelleas Homes GL Ltd | Real estate | 2026 |
| Pellow Mortgage Solutions Ltd | Financial services | 2015 |
| Pembroke Privacy UK Limited | Administrative & support | 2024 |
| Pembury Local Limited | Wholesale & retail | 2025 |
| PEN Construction Limited | Extraterritorial | 2007 |
| Penbray Services Limited | Professional & scientific | 2001 |
| Penny Seymour Events Ltd | Hospitality | 2021 |
| Pentlow Meals Services Limited | Hospitality | 2001 |
| Pentlow Training Centre Limited | Health & social care | 2003 |
| People Make Games Ltd | Information & communication | 2022 |
| People Pulse Finances & HR Management Limited | Professional & scientific | 2024 |
| Peoplesolved Limited | Administrative & support | 2016 |
| PEP Talk Media Limited | Information & communication | 2018 |
| Peppercareuk Ltd | Hospitality | 2022 |
| Peppercareukproperties Limited | Real estate | 2026 |
| Perfect Body Shape Limited | Wholesale & retail | 2020 |
| Perfect Body Zone Ltd. | Wholesale & retail | 2016 |
| Perfect Pablo Limited | Health & social care | 2011 |
| Performal Ltd | Construction | 2019 |
| Performance Car Wash Limited | Administrative & support | 2021 |
| Performance Toys Limited | Wholesale & retail | 2006 |
| Perfume Anorak Limited | Extraterritorial | 2016 |
| Perfume Pack UK Ltd | Wholesale & retail | 2021 |
| Permundum Limited | Administrative & support | 2016 |
| Perry Hill Properties Ltd | Real estate | 2010 |
| Perry Hill Property Management Company Ltd | Real estate | 2011 |
| Perrymount Nurseries Limited | Education | 2016 |
| Personal Service Travel (Sussex) Limited | Administrative & support | 2007 |
| Perspective Properties SC Limited | Real estate | 2022 |
| Perspectives Planning Ltd | Professional & scientific | 2020 |
| Perth Dental Limited | Health & social care | 2016 |
| PES Heating and Plumbing Ltd | Construction | 2016 |
| Pet Paws Property Ltd | Professional & scientific | 2019 |
| Petal & POP Sussex Ltd | Arts & recreation | 2026 |
| Petchem Process CON. Ltd | Professional & scientific | 2021 |
| Peter Blackford (Flooring) Limited | Construction | 1972 |
| Peter Browne Associates Limited | Other services | 2015 |
| Petkova Medical Ltd | Health & social care | 2025 |
| Petrochemprocess Ltd | Professional & scientific | 2025 |
| Petropolis Limited | Education | 2016 |
| Pevensey Bay Aqua Club Limited | Hospitality | 2010 |
| Pevensey Bay Marine Limited | Extraterritorial | 2011 |
| Pevensey Chicken Ltd | Hospitality | 2024 |
| Pevensey Mint Limited | Professional & scientific | 2010 |
| Pevensey Road Limited | Other services | 2006 |
| PFC Developments Limited | Professional & scientific | 2007 |
| PFH Assets Limited | Information & communication | 2021 |
| PGB Investment Ltd | Real estate | 2020 |
| Pharaoh Darts Limited | Manufacturing | 2024 |
| Pharmaedge Ltd | Professional & scientific | 2023 |
| Pharmagolive Limited | Professional & scientific | 2022 |
| Phase Forward Music Ltd | Administrative & support | 2023 |
| PHD24 Ltd | Construction | 2022 |
| Phenson Homes Limited | Construction | 2016 |
| Pheonix Cargo Transport Limited | Transport & logistics | 2019 |
| Pheonix Property Ltd | Real estate | 2025 |
| Phil Nuttall Design Ltd | Professional & scientific | 2019 |
| Philbright Ltd. | Real estate | 2017 |
| Philip Ullah Associates Ltd | Professional & scientific | 2020 |
| Philips Medicolegal Ltd | Health & social care | 2026 |
| Philps Ltd. | Administrative & support | 1985 |
| Phina Consulting Ltd | Professional & scientific | 2015 |
| Phoenix AI Ltd | Information & communication | 2026 |
| Phoenix Building Assured Ltd | Construction | 2024 |
| Phoenix Court Residents Association (Eastbourne) Limited | Households | 1987 |
| Phoenix Gardening Services Ltd | Administrative & support | 2026 |
| Phrecare Limited | Health & social care | 2017 |
| Phronia Limited | Administrative & support | 2025 |
| Phychembio Tutors Limited | Education | 2025 |
| Physio Vibe Body Health Station Ltd | Health & social care | 2025 |
| Physiobourne Limited | Health & social care | 2024 |
| Physiotherapy Consultants Limited | Extraterritorial | 2004 |
| Physiques Gym Ltd | Arts & recreation | 2016 |
| PIA Cake UK Ltd | Other services | 2021 |