| Phoenix Capital Investments Ltd | Financial services | 2017 |
| PHS Aggregates Limited | Wholesale & retail | 2019 |
| PHU Kiet Property Ltd | Real estate | 2025 |
| Phumelela Limited | Health & social care | 2023 |
| PIA Kobiela Limited | Wholesale & retail | 2021 |
| Pick UP Pintxos Limited | Hospitality | 2015 |
| Pickdropship Limited | Wholesale & retail | 2012 |
| Pickle Goods Ltd | Wholesale & retail | 2015 |
| Pickled Provisions Ltd | Hospitality | 2024 |
| Pierstone Building Limited | Construction | 2024 |
| Pierstone Property Group Limited | Administrative & support | 2024 |
| PIG Industries Ltd | Information & communication | 2025 |
| Pigs EAR (SP) Limited | Administrative & support | 2008 |
| Piper Cams (Holdings) Limited | Administrative & support | 2014 |
| Pipril Limited | Construction | 2015 |
| Piratical Productions Ltd | Arts & recreation | 2025 |
| Pixel Dojo Ltd | Wholesale & retail | 2012 |
| Pixels & Code Ltd | Information & communication | 2025 |
| PJ (Spar) Ltd | Wholesale & retail | 2016 |
| PJ Dover Ltd | Hospitality | 2022 |
| PL Rail Ltd | Manufacturing | 2024 |
| Plan With Care Limited | Health & social care | 2018 |
| Planancy Limited | Construction | 1996 |
| Planet Earth Kitchen Limited | Hospitality | 2018 |
| Plant Hire Solutions (Kent) Limited | Administrative & support | 2019 |
| Plant, Commercial & Marine Limited | Manufacturing | 2017 |
| PLAYAWAY2 Ltd | Arts & recreation | 2022 |
| Pleasant Land Distillery Limited | Manufacturing | 2021 |
| Plectrums Pens and Paints Ltd | Wholesale & retail | 2008 |
| PLO Enterprises Limited | Transport & logistics | 2023 |
| Plough Green Properties Limited | Real estate | 2021 |
| Plus One Bikes Limited | Transport & logistics | 2013 |
| Plush Property (Kent) Ltd | Real estate | 2016 |
| PML Analytics Ltd | Information & communication | 2015 |
| Pmpt Property Limited | Real estate | 2023 |
| Pmva Training Ltd | Education | 2010 |
| Pocket Giant Limited | Professional & scientific | 2016 |
| Pokejayy Ltd | Wholesale & retail | 2025 |
| Pokhara Travel Limited | Administrative & support | 2009 |
| Polisec Ltd | Transport & logistics | 2023 |
| Pollock Writes Limited | Arts & recreation | 2020 |
| Poouch Limited | Wholesale & retail | 2011 |
| POP Classics Ltd | Wholesale & retail | 2026 |
| Poppy Fields (Hawkinge) Management Company Limited | Households | 2024 |
| Port Regis Montessori Limited | Education | 2021 |
| Porto Private Limited | Hospitality | 2024 |
| Posh Wash Laundrette Services Ltd | Other services | 2020 |
| Posh Wash Laundry Ltd | Other services | 2026 |
| Positive Mind Tech. Ltd | Education | 2006 |
| Post ME IF UK Ltd | Information & communication | 2017 |
| Postscript (South East) Limited | Real estate | 2022 |
| Pot&Vessel Ltd | Wholesale & retail | 2021 |
| Potts Ltd | Wholesale & retail | 1953 |
| Powell & Barns Group Limited | Information & communication | 2018 |
| Power Thoughts Limited | Health & social care | 2022 |
| Powered With Purpose Ltd | Construction | 2025 |
| Powone Ltd | Education | 2019 |
| Praesidium Motus Limited | Transport & logistics | 2025 |
| Prater Raines Limited | Information & communication | 2007 |
| Pratique Ltd | Education | 2025 |
| Precision Access Inspection Ltd | Professional & scientific | 2026 |
| Premier London Property Group Ltd | Construction | 2022 |
| Premier Primarycare Limited | Health & social care | 1996 |
| Premier UK Law Limited | Professional & scientific | 1993 |
| Premier-Inn Global Service Limited | Administrative & support | 2024 |
| Prenimex Limited | Real estate | 1990 |
| Presence Education Ltd | Information & communication | 2019 |
| Prestige Fascias Ltd | Construction | 2019 |
| Prestige Homes Kent Ltd | Construction | 2018 |
| Prestigious Travel UK Limited | Administrative & support | 2008 |
| Primary Technologies (S.E.) Ltd | Information & communication | 2011 |
| Prime Core Construction Services Ltd | Construction | 2025 |
| Prime Experience Ltd | Transport & logistics | 2024 |
| Prime Spray Plastering & Painting Contractors Ltd | Construction | 2019 |
| Primepulse Retail Ltd | Wholesale & retail | 2025 |
| Primrose Road Management Limited | Households | 1994 |
| Priority Point Limited | Professional & scientific | 2011 |
| Prize Pony Ltd | Wholesale & retail | 2025 |
| Pro Accounting Limited | Professional & scientific | 1998 |
| Procall Engineers Limited | Manufacturing | 2013 |
| Procoat Solutions Ltd | Construction | 2025 |
| Prodota Limited | Information & communication | 2015 |
| Production Nomad CIC | Manufacturing | 2026 |
| Profile Architects Limited | Professional & scientific | 2010 |
| Progressive Thought Ltd | Professional & scientific | 2016 |
| Property Management Arundale Ltd | Households | 2024 |
| Property Sasa Limited | Wholesale & retail | 2020 |
| Proscenium (UK) Limited | Administrative & support | 2000 |
| Prospect Flat Roofing Ltd | Construction | 2019 |
| PS3 Limited | Professional & scientific | 2012 |
| Pstx Ltd | Other services | 2025 |
| PTH Research Consultancy Ltd | Administrative & support | 2022 |
| PUB and Club Security Limited | Hospitality | 2000 |
| Pulseoh Ltd | Health & social care | 2022 |
| Punchbook Capital Limited | Financial services | 2026 |
| Pura Design Ltd | Construction | 2009 |
| Pure Climate Solutions Limited | Construction | 2019 |
| Pure Energy Group Ltd | Construction | 2023 |
| Pure Holidays Limited | Administrative & support | 2017 |
| Pure Indulgence Kent Limited | Other services | 2013 |