| Pinnacle Consult Ltd | Wholesale & retail | 2024 |
| Pinnacle Plumbing & Heating Services Ltd | Construction | 2023 |
| Pipeweld International Ltd | Administrative & support | 2006 |
| Pirates Cave (UK) Limited | Extraterritorial | 2023 |
| Piste Yeti Limited | Wholesale & retail | 2022 |
| Pitchadvantage Ltd | Real estate | 2022 |
| Pitstop Garage & MOT Centre Ltd | Wholesale & retail | 2017 |
| Pixel Juice Ltd | Arts & recreation | 2023 |
| Pixel Junkies Ltd | Information & communication | 2015 |
| PJH Drywall Ltd | Construction | 2023 |
| PJH Housing Ltd | Real estate | 2020 |
| PJH Industrial/Maritime Painting Limited | Construction | 2017 |
| PJN and Associates Limited | Real estate | 2017 |
| PJS Direct Limited | Administrative & support | 2011 |
| PJS Recruitment Ltd | Other services | 2017 |
| PKS Trans Ltd | Transport & logistics | 2023 |
| Plaistow Advice Limited | Professional & scientific | 2024 |
| Plant & Tools Sales Ltd | Wholesale & retail | 2021 |
| Plant Build UK Ltd | Construction | 2018 |
| Plant Trap Limited | Administrative & support | 2012 |
| Plantonsite Ltd | Information & communication | 2026 |
| Platinum Acres Limited | Real estate | 2020 |
| Platinum Level Holdings Ltd | Real estate | 2024 |
| Platoai Ltd | Information & communication | 2026 |
| Plug Ltd | Information & communication | 2011 |
| Plumb-Tech Consultancy Ltd | Professional & scientific | 2016 |
| Plumbing & Pipework Services Ltd | Construction | 2022 |
| Plumbing and Heating Kent Limited | Construction | 2009 |
| Plus 39 Limited | Wholesale & retail | 2013 |
| Plus Logistech Ltd | Information & communication | 2019 |
| Plutus-Kratos Limited | Real estate | 2019 |
| PMC Tree Care Limited | Administrative & support | 2024 |
| PMC365 Ltd | Professional & scientific | 2015 |
| PMO and Planning Services Ltd | Information & communication | 2013 |
| PMU Play Ltd | Other services | 2020 |
| PNB Services Ltd | Construction | 2017 |
| Pneu ERA Pneumatic & Valve Supplies Ltd | Wholesale & retail | 2019 |
| Pnkd Limited | Households | 2025 |
| PNL Investments Limited | Financial services | 2019 |
| PNM Properties Ltd | Real estate | 2021 |
| Poku Limited | Transport & logistics | 2025 |
| Polar Services Ltd | Construction | 2023 |
| Polegate Quantity Surveying Services Ltd | Professional & scientific | 2019 |
| Polish Coaling and Trading Company Limited | Transport & logistics | 1947 |
| Polished and Co Ltd | Other services | 2026 |
| Pollaris Research Group Ltd | Professional & scientific | 2026 |
| Polytek Services Limited | Construction | 2003 |
| Ponton Joinery Limited | Manufacturing | 2014 |
| Pookah Bars Ltd | Hospitality | 2025 |
| Pope Culture Limited | Professional & scientific | 2022 |
| Popit Drainage Ltd | Water & waste | 2024 |
| Poppy Rentals Limited | Hospitality | 2014 |
| Poppy Therapies Ltd | Other services | 2019 |
| Pops Contracts Limited | Construction | 2010 |
| Porefection Limited | Other services | 2023 |
| Port Medway Marina Limited | Manufacturing | 1990 |
| Port Medway Marine Services Limited | Extraterritorial | 2010 |
| Portadale Lettings Limited | Real estate | 2009 |
| Portadale Limited | Real estate | 1993 |
| Portaking Ltd | Administrative & support | 2024 |
| Portal Investment News Limited | Financial services | 2009 |
| Posillipo Consulting Services Ltd | Professional & scientific | 2022 |
| Potens Homes Ltd | Real estate | 2020 |
| Potter Electrical Ltd | Construction | 2024 |
| Poundsaver Limited | Real estate | 1998 |
| Powar Homes Ltd | Real estate | 2020 |
| Powar Investments Ltd | Real estate | 2019 |
| Power Cable Services Limited | Manufacturing | 2006 |
| Powerent Ltd | Extraterritorial | 2010 |
| Powerful RB Kitchens Ltd | Construction | 2019 |
| Powergreen Roofing & Solar Ltd | Construction | 2024 |
| Powerhire Ltd | Professional & scientific | 2011 |
| Powerhouse Coaching Limited | Wholesale & retail | 2022 |
| Powertec East Ltd | Construction | 2022 |
| Powertech Generators Limited | Manufacturing | 2010 |
| PPC Construction Ltd | Construction | 2025 |
| PPP New Co Limited | Manufacturing | 2023 |
| PPS Business Solutions Limited | Administrative & support | 2026 |
| PR Dance Haulier Ltd | Transport & logistics | 2011 |
| Pradalo Distribution Ltd | Wholesale & retail | 2020 |
| Praedium Curo Limited | Real estate | 2021 |
| Praxisbridge Consulting Ltd | Information & communication | 2026 |
| Prayer Summit Praying Mothers | Other services | 2024 |
| Precious Live Agency Ltd | Information & communication | 2026 |
| Preclizz Limited | Hospitality | 2020 |
| Preety Tidy Cleaners Ltd | Administrative & support | 2024 |
| Premier Refurbs Limited | Construction | 2018 |
| Premier Roofing and Building Kent Ltd | Construction | 2026 |
| Premier Services (Kent) Ltd | Construction | 2024 |
| Premium Haircare Supplies Ltd | Wholesale & retail | 2026 |
| Premium Scaffolding Ltd | Construction | 2024 |
| Pres.Bi Construction Ltd | Construction | 2024 |
| Prestige Nursery Mattresses Ltd | Manufacturing | 2009 |
| Prestige Resins Limited | Construction | 2017 |
| Prestige Rigging Limited | Construction | 2018 |
| PRESTIGE58 Brickwork Limited | Construction | 2021 |
| Prestine Care Ltd | Public administration | 2025 |
| Prettide Properties Ltd | Real estate | 2023 |
| Price Automotive Solutions Ltd | Wholesale & retail | 2024 |
| Price Services Limited | Other services | 2019 |