| Powell PUB Group Ltd | Hospitality | 2025 |
| Powerhouse Pilates Ltd | Arts & recreation | 2025 |
| PP Run Limited | Arts & recreation | 2021 |
| PPD Events Limited | Administrative & support | 2025 |
| PPE Specialist Ltd | Professional & scientific | 2020 |
| PPM Management Ltd | Professional & scientific | 2018 |
| Ppmd Property Ltd | Real estate | 2026 |
| Ppmgov Limited | Administrative & support | 2018 |
| Pragma Technology Limited | Information & communication | 1995 |
| Prasannabvt Limited | Hospitality | 2011 |
| Precis (1795) Limited | Professional & scientific | 1999 |
| Precis (1799) Limited | Professional & scientific | 1999 |
| Preloved Warehouse Ltd | Wholesale & retail | 2026 |
| Premier Corporate Services (U.K.) Limited | Information & communication | 2000 |
| Premier Green Supplies Ltd | Administrative & support | 2021 |
| Premier Residential Property Ltd | Real estate | 2023 |
| Premium Accommodation and Rentals Ltd | Hospitality | 2024 |
| Premium Building Services Limited | Construction | 2002 |
| Premium Stash Box Limited | Wholesale & retail | 2024 |
| Premium Talent Ltd | Administrative & support | 2025 |
| Press File Print Limited | Information & communication | 2014 |
| Pressure 24/7 Limited | Health & social care | 2024 |
| Prestige Protect-Uk Ltd | Wholesale & retail | 2026 |
| Prestige Sports Coaching Ltd | Education | 2021 |
| PRESTIGE4YOU Design Ltd | Professional & scientific | 2023 |
| PRESTIGE4YOU Ltd | Administrative & support | 2020 |
| Prestigious Electricals Ltd | Construction | 2011 |
| Preston Gardening Ltd | Administrative & support | 2023 |
| Pretty Elite Ltd | Wholesale & retail | 2025 |
| Pretty Pieces Ltd | Wholesale & retail | 2025 |
| Prezans Ltd | Hospitality | 2019 |
| Price Logic Ltd | Information & communication | 2026 |
| Primarc Consultants Ltd | Professional & scientific | 2024 |
| Primary Care Doctors Ltd | Health & social care | 2021 |
| Primary Resources Limited | Mining & quarrying | 2011 |
| Prime Edge Technologies Limited | Information & communication | 2024 |
| Prime Power Converters Ltd | Wholesale & retail | 2017 |
| Primevest Investments Ltd. | Real estate | 2024 |
| Primewall Interior Solutions Ltd | Construction | 2024 |
| Primo Ratio Ltd | Information & communication | 2009 |
| Prism Executive Recruitment Limited | Administrative & support | 2002 |
| Prism Recruitment Limited | Administrative & support | 1997 |
| Pristine Plastering (South) Limited | Construction | 2021 |
| Pro Conference UK Limited | Information & communication | 2016 |
| Pro Logic Building Limited | Construction | 2025 |
| Pro Orbit Limited | Wholesale & retail | 2019 |
| Pro Player Centres Ltd | Arts & recreation | 2020 |
| Pro-Active Data Ltd | Information & communication | 2024 |
| Pro-Fiber Ltd | Construction | 2019 |
| Process Safety Matters Limited | Professional & scientific | 2016 |
| Procompliance Services Ltd | Information & communication | 2023 |
| Procyon Property Ltd | Real estate | 2024 |
| Prodiv Limited | Real estate | 2023 |
| Product Guru IT Ltd | Information & communication | 2021 |
| Production Control Software Limited | Professional & scientific | 2016 |
| Production.Gg Ltd | Information & communication | 2014 |
| Professional Arts Transport & Logistics Ltd | Transport & logistics | 2026 |
| Professional Heating Services Ltd | Construction | 2018 |
| Programming Research Limited | Information & communication | 1993 |
| Progression Electrical Ltd | Construction | 2021 |
| Progro Landscapes Ltd | Administrative & support | 2018 |
| Project Base 44 Ltd | Construction | 2025 |
| Project Management Developments Limited | Professional & scientific | 2008 |
| Project Support Services (PSS) Ltd | Construction | 2005 |
| Promec Mechanical Services Limited | Construction | 2025 |
| Prominentcontact Ltd | Information & communication | 2019 |
| Propensity Index Limited | Information & communication | 2009 |
| Proper ECU Solutions Ltd | Wholesale & retail | 2026 |
| Proper Remaps Ltd | Wholesale & retail | 2025 |
| Properties by Dare Ltd | Real estate | 2026 |
| Proprocure Wholesale Limited | Wholesale & retail | 2025 |
| Prosonic Studio Ltd | Information & communication | 2023 |
| Prospec Systems Limited | Information & communication | 1987 |
| Prosurface Clean Ltd | Administrative & support | 2025 |
| Protec IT Solutions Ltd | Information & communication | 2003 |
| PROTEC1 Limited | Other services | 2015 |
| Providerplus 365 Care Services Ltd. | Health & social care | 2025 |
| PRS Roofing Southern Ltd | Construction | 2026 |
| Prymex Limited | Wholesale & retail | 2024 |
| PS Aesthetics Limited | Health & social care | 2020 |
| PS Consulting Services Ltd | Transport & logistics | 2024 |
| PS Marketing Solutions Ltd | Professional & scientific | 2024 |
| Psaf Ltd | Professional & scientific | 2002 |
| PSL Datatrack Limited | Information & communication | 2002 |
| PT Property Enterprise Limited | Real estate | 2021 |
| PTP Digital Ltd | Information & communication | 2019 |
| Ptrlb Ltd | Construction | 2025 |
| Pubfoleys Limited | Hospitality | 2025 |
| Pulsemetric Media Ltd | Professional & scientific | 2026 |
| Pulsic Japan Limited | Information & communication | 2002 |
| Pulsic Limited | Information & communication | 1999 |
| Puppet Labs Limited | Information & communication | 2011 |
| Purdue Performance Limited | Education | 2019 |
| Pure Energy Europe Ltd | Wholesale & retail | 2009 |
| Pure Freight London Limited | Transport & logistics | 2011 |
| Pure Play Consulting Limited | Professional & scientific | 2014 |
| Pureheat - Berkshire Ltd | Manufacturing | 2015 |
| Purmit Ltd | Real estate | 2008 |
| Purple Beanbag Limited | Professional & scientific | 2022 |
| Purple Plastering Limited | Construction | 2015 |