| Playle Construction Limited | Agriculture & fishing | 2008 |
| Playpositive Ltd | Information & communication | 2026 |
| Plaza Fish & Chips Ltd | Hospitality | 2020 |
| Plaza PR Ltd | Professional & scientific | 2024 |
| PLC Transport Ltd | Transport & logistics | 2016 |
| Pleasingplaces Ltd | Administrative & support | 2024 |
| Plexos AI Limited | Information & communication | 2023 |
| Plexuz Limited | Other services | 2025 |
| PLI Ltd | Professional & scientific | 2025 |
| Pliris Limited | Construction | 2022 |
| PLN Entertainment Ltd | Arts & recreation | 2016 |
| Plodit Limited | Wholesale & retail | 2009 |
| Plombier Limited | Professional & scientific | 2013 |
| Plop Eco Ltd | Wholesale & retail | 2024 |
| Plotinvest Limited | Real estate | 2019 |
| Plough Inn Millom Ltd | Hospitality | 2024 |
| PLP Fire & Security Limited | Administrative & support | 2011 |
| PLR Logistics Ltd | Transport & logistics | 2023 |
| PLT Studio Ltd | Arts & recreation | 2025 |
| Plug Agency Ltd | Professional & scientific | 2011 |
| Plug Bathrooms Ltd | Wholesale & retail | 2014 |
| Plugstationuk Ltd | Hospitality | 2019 |
| Plugsy Group Limited | Information & communication | 2026 |
| Plumb Distribution Limited | Wholesale & retail | 2016 |
| Plumb Images Ltd | Professional & scientific | 2018 |
| Plumbico Ltd | Construction | 2020 |
| Plumbland Trade Supplies Ltd | Wholesale & retail | 2025 |
| Plumbwise (Loughborough) Limited | Construction | 2006 |
| Plus Babeczki Ltd | Wholesale & retail | 2023 |
| Plus Group Holdco Limited | Financial services | 2026 |
| Plus Optical Services Ltd | Health & social care | 2013 |
| Plus Partners Limited | Financial services | 2026 |
| Plus Star Printers Limited | Manufacturing | 2025 |
| Plush Automotive Limited | Manufacturing | 2018 |
| Plush Homes Ltd | Construction | 2019 |
| Plush Properties (Midlands) Ltd | Real estate | 2019 |
| Pluto Works Ltd | Construction | 2026 |
| Plymstock Solutions Ltd | Information & communication | 2014 |
| PM Performance Cars Ltd | Transport & logistics | 2024 |
| PM Rentals Ltd | Real estate | 2024 |
| Pm-Ec Limited | Professional & scientific | 2009 |
| PM2 Project Management Services Limited | Professional & scientific | 2013 |
| PM248 Ltd | Real estate | 2026 |
| PM9 Property Ltd | Real estate | 2022 |
| PM99 Ltd | Real estate | 2023 |
| PMA Radiators Limited | Extraterritorial | 1971 |
| PMC Project Ltd | Real estate | 2013 |
| Pmcb Tech Ltd | Professional & scientific | 2026 |
| PMD Telecommunications Ltd | Information & communication | 2019 |
| PMH Associates Ltd | Wholesale & retail | 2020 |
| PMI Building Services Limited | Construction | 2002 |
| Pmicromatics Ltd | Information & communication | 2024 |
| PMK Leicester Ltd | Real estate | 2025 |
| PMO2GO Ltd | Administrative & support | 2015 |
| PMP Renovations Limited | Construction | 2023 |
| Pmph Property Investments Limited | Real estate | 2025 |
| PMQ Productions Ltd | Arts & recreation | 2023 |
| PMR Commercial Contracts Limited | Construction | 2018 |
| PMR Ltd | Professional & scientific | 2021 |
| PMS Vehicle Products Ltd | Wholesale & retail | 2024 |
| PMS Wholesale Limited | Wholesale & retail | 2025 |
| PN Electrical Services Limited | Manufacturing | 2002 |
| PN Homes Ltd | Real estate | 2025 |
| PNC2 Limited | Construction | 2024 |
| PND Store Ltd | Wholesale & retail | 2025 |
| Pneuflo Supply Co Ltd | Wholesale & retail | 2025 |
| PNG Associates Holdings Limited | Real estate | 2017 |
| Pnguin Limited | Information & communication | 2024 |
| PNJ Investments Ltd | Real estate | 2015 |
| PNJ Ltd | Real estate | 2021 |
| PNN Investments Ltd | Extraterritorial | 2012 |
| PNP Properties Limited | Real estate | 2016 |
| PNR Homes Limited | Households | 2024 |
| PNT Marketing Limited | Professional & scientific | 2025 |
| PNT Properties Ltd | Real estate | 2016 |
| PO Boys Limited | Hospitality | 1998 |
| Pocket Savers Ltd | Wholesale & retail | 2025 |
| Pocket Watch Productions Limited | Information & communication | 2010 |
| Pocklington Walk Limited | Construction | 2004 |
| POD Apparels Ltd | Manufacturing | 2024 |
| POD Chiropody & Laser Clinic Ltd | Health & social care | 2013 |
| POD Escape Ltd | Other services | 2021 |
| POD Homes Ltd | Real estate | 2020 |
| Podgers Bros. Haulage Limited | Transport & logistics | 1977 |
| Podol PL Ltd | Wholesale & retail | 2026 |
| Podoskin Podiatry Clinic Ltd | Health & social care | 2024 |
| Pods Direct Limited | Wholesale & retail | 2019 |
| Poggy Limited | Hospitality | 2019 |
| Point Marketing International Limited | Professional & scientific | 2021 |
| Pointlink Broadband Ltd | Administrative & support | 2017 |
| Poiu Limited | Professional & scientific | 2000 |
| POL Touch Doors and Windows Ltd | Construction | 2025 |
| POL Touch Home Improvements Ltd | Construction | 2019 |
| Polar Star Limited | Real estate | 2021 |
| Polareus Limited | Education | 2011 |
| Polaris Cyber Consulting Limited | Information & communication | 2020 |
| Polaris Maintenance Ltd | Construction | 2021 |
| Polaris Technology Group Limited | Information & communication | 2025 |
| Polarized Films Ltd | Arts & recreation | 2018 |
| Polarspeed Limited | Transport & logistics | 2016 |