| Pizza Buoys Ltd. | Hospitality | 2024 |
| Pizza North Limited | Hospitality | 2008 |
| Pizza Plus (Ashford) Ltd | Hospitality | 2019 |
| Pizza UK Guys Ltd | Hospitality | 2025 |
| Pizzeria Cafe 59 Ltd | Hospitality | 2018 |
| PJ CAD UK Limited | Professional & scientific | 2007 |
| PJ Consulting Services Ltd | Information & communication | 2021 |
| PJ UK Properties Ltd | Real estate | 2025 |
| PJA Coachworks Ltd | Administrative & support | 2004 |
| PJB Group Ltd | Real estate | 2024 |
| PJL (Saltwood) Limited | Real estate | 2022 |
| PJM Mediation Ltd | Administrative & support | 2024 |
| PJO Electricals Limited | Construction | 2007 |
| Pjrg Ltd | Real estate | 2016 |
| PJT LOW Carbon Holdings Limited | Professional & scientific | 2025 |
| PK Cars Ltd | Wholesale & retail | 2021 |
| PK Fine Foods Limited | Wholesale & retail | 2009 |
| PK Softwares Ltd | Information & communication | 2024 |
| PK Trading (UK) Limited | Wholesale & retail | 2000 |
| PK Waste Management Ltd | Water & waste | 2023 |
| PKH Process Ltd | Professional & scientific | 2016 |
| Placeaspect Property Management Limited | Real estate | 1996 |
| Placeshaper Development Services Ltd | Professional & scientific | 2024 |
| Plakoto Limited | Information & communication | 2016 |
| Plane Crazy Ltd | Arts & recreation | 2001 |
| Plane Living Ltd | Manufacturing | 2022 |
| Planet Quince Ltd | Information & communication | 2017 |
| Planet Soccer Guildford Ltd | Arts & recreation | 2022 |
| Planetearthed Ltd | Manufacturing | 2008 |
| Plant Promoting Doctor Ltd | Health & social care | 2023 |
| Plasterboard Recycling Limited | Water & waste | 2009 |
| Plastic Wood Products Limited | Construction | 2013 |
| Plasticom Ltd. | Manufacturing | 1993 |
| Platform 26 Golf Ltd | Arts & recreation | 2026 |
| Platform 26 Limited | Real estate | 2020 |
| Platform Interiors Ltd | Administrative & support | 2008 |
| Platinum Auto Detailing Limited | Wholesale & retail | 2021 |
| Platinum Automotive Kent Limited | Wholesale & retail | 2026 |
| Platinum Care Agency Ltd | Administrative & support | 2026 |
| Platinum Care Consultancy Limited | Professional & scientific | 2014 |
| Platinum Hand Limited | Health & social care | 2025 |
| Platinum Installation & Maintenance Limited | Construction | 2008 |
| Platts Horticulture Group Ltd | Administrative & support | 2022 |
| Plenaro Ltd | Administrative & support | 2023 |
| Plot OR NOT Limited | Construction | 2025 |
| Plot Twist Limited | Professional & scientific | 2022 |
| Pluckley Auto Repairs Limited | Wholesale & retail | 2019 |
| Plug Moves Ltd | Transport & logistics | 2024 |
| Plugged Electrical Ltd | Construction | 2021 |
| Plumb-Smart Ltd | Construction | 2014 |
| Plumbing & Heating Angels Ltd | Construction | 2023 |
| Plunge Pools Ltd | Wholesale & retail | 2025 |
| Plush Huts Ltd | Hospitality | 2022 |
| PM Engineering (Kent) Limited | Manufacturing | 2013 |
| PM Tax Resolution LLP | | 2018 |
| PM101 Ltd | Information & communication | 2025 |
| Pmac Design and Building Services Limited | Construction | 2024 |
| PMC Charterhouse Ltd | Real estate | 2017 |
| PMC Lead Logistics LLP | | 2010 |
| Pmea International Operations Ltd | Information & communication | 2025 |
| PMR TTT Limited | Other services | 2014 |
| Pneuma Church | Other services | 2013 |
| PO Square Ltd | Real estate | 2020 |
| POD60 Ltd | Manufacturing | 2014 |
| Poet&Green Ltd | Hospitality | 2025 |
| Pointmoore Ltd | Professional & scientific | 2011 |
| Poise Connect Ltd | Wholesale & retail | 2023 |
| Polar Cooling Services Ltd | Construction | 2007 |
| Polar FM Limited | Construction | 2020 |
| Polaris Auditing Limited | Professional & scientific | 2023 |
| Polistas Management Ltd | Administrative & support | 2013 |
| Polka DOT Cleaners Ltd | Administrative & support | 2020 |
| Polka DOT Commercial Cleaners Ltd | Administrative & support | 2024 |
| Pollothena Ltd | Professional & scientific | 2022 |
| Polygon IT Solutions Ltd | Information & communication | 2024 |
| Polymer Services Ltd | Water & waste | 2024 |
| Pomfrett Cottage Nursery Ltd | Health & social care | 2024 |
| Ponya.Data Limited | Professional & scientific | 2025 |
| Pool and Spa Doctor Ltd | Manufacturing | 2015 |
| Pool Consulting Services Ltd | Professional & scientific | 2021 |
| Poole MB Coffee Ltd | Hospitality | 2019 |
| Poplar Green Limited | Real estate | 2017 |
| Popped UP Group Ltd | Construction | 2017 |
| Poppysupport Ltd | Health & social care | 2026 |
| Porschembri Limited | Wholesale & retail | 2010 |
| Port Explore Ltd | Wholesale & retail | 2018 |
| Port of Cairnryan Limited | Transport & logistics | 2003 |
| Portfolio Roofing Ltd | Construction | 2025 |
| Portheras Limited | Real estate | 2024 |
| Portlaurel Limited | Financial services | 2022 |
| Porto Properties Ltd | Real estate | 2023 |
| Portugal Pathways Limited | Professional & scientific | 2023 |
| Portwood Cars Limited | Wholesale & retail | 2023 |
| Portwood Holdings Limited | Real estate | 2018 |
| Posh John Construction Ltd | Construction | 2022 |
| Positivelyleading Ltd | Professional & scientific | 2018 |
| Postal and Logistics Consulting Worldwide Limited | Professional & scientific | 2003 |
| Poster Experts Limited | Extraterritorial | 2015 |
| Potten Farm Shop Ltd | Wholesale & retail | 2025 |
| Potter Housing Limited | Real estate | 2024 |