| Pippa & MAX Limited | Wholesale & retail | 2018 |
| Pisces Bathrooms Ltd. | Administrative & support | 2019 |
| Pitchford Engineering Limited | Construction | 2008 |
| Pitstop Motorcycles Limited | Wholesale & retail | 2003 |
| Pitt Wholesale Ltd | Wholesale & retail | 2024 |
| Pivotal Golf Limited | Wholesale & retail | 2025 |
| Pixelharbour Ltd | Information & communication | 2026 |
| Pixelmate Ltd | Professional & scientific | 2021 |
| PJ Architectural Consultants Limited | Administrative & support | 2007 |
| PJ Woods Services Limited | Professional & scientific | 2018 |
| Pj's Jewellers Limited | Wholesale & retail | 2014 |
| Pjberry Ltd | Administrative & support | 2025 |
| PJC Management Limited | Administrative & support | 2025 |
| Pjcm Properties Ltd | Real estate | 2024 |
| PJD Consulting Services Limited | Financial services | 2023 |
| PJD Training & Consultancy Ltd | Information & communication | 2025 |
| PJF Test and Commissioning Services Limited | Professional & scientific | 2019 |
| PJI Davies Limited | Administrative & support | 2012 |
| PJL Consulting Limited | Administrative & support | 2016 |
| PJL Designs Ltd | Administrative & support | 2023 |
| PJM Retail Consultants Ltd | Professional & scientific | 2015 |
| Pjnl Property Ltd | Real estate | 2026 |
| PJP Surveying Limited | Construction | 2019 |
| PJR Group Solutions Limited | Financial services | 2026 |
| PJR Industrial Solutions Limited | Construction | 2026 |
| PJR Marine Solutions Limited | Other services | 2024 |
| PJS Draughting Services Limited | Administrative & support | 2010 |
| PJT Hsse Services Limited | Administrative & support | 2014 |
| PJW Pensions Consulting Ltd | Financial services | 2025 |
| PK Construction Management Services Ltd | Construction | 2007 |
| PK Global Edge Ltd | Administrative & support | 2025 |
| PK Hart Properties Limited | Construction | 2024 |
| PK Streetworks Ltd | Professional & scientific | 2015 |
| PKC Technical Services Limited | Administrative & support | 2009 |
| PKJ Engineering Limited | Professional & scientific | 2019 |
| PKL Engineering Limited | Administrative & support | 2013 |
| PKN Consultants Ltd | Professional & scientific | 2018 |
| Pkrp Property Services Ltd | Real estate | 2025 |
| PL Consultancy Services Limited | Professional & scientific | 2019 |
| PL Tennis Coaching Limited | Education | 2019 |
| Place and Base Ltd | Education | 2026 |
| Plaine.Clothing Ltd | Wholesale & retail | 2023 |
| Plan IT Jupiter Ltd | Professional & scientific | 2019 |
| Plan Pro Solutions Limited | Administrative & support | 2025 |
| Plan RB Limited | Professional & scientific | 2017 |
| Plane Perspective Limited | Professional & scientific | 2013 |
| Plane Sailing Travels Ltd | Administrative & support | 2020 |
| Planet Catering Cockhedge Limited | Hospitality | 2019 |
| Planet Catering Company Ltd | Hospitality | 2001 |
| Planet Mars Ltd | Administrative & support | 2022 |
| Planet Snax Ltd | Hospitality | 2018 |
| Planet Snax Retail Ltd | Wholesale & retail | 2018 |
| Planitech Ltd | Administrative & support | 2023 |
| Planna Travel Ltd | Administrative & support | 2024 |
| Planning & Scheduling Ltd | Professional & scientific | 2024 |
| Planning and Environmental Consultants Limited | Professional & scientific | 2021 |
| Planning Matters Consultancy Limited | Professional & scientific | 2018 |
| Planright Consulting Group Ltd | Professional & scientific | 2025 |
| Plant Life Controls Limited | Professional & scientific | 1990 |
| Planwise Projects Ltd | Professional & scientific | 2009 |
| Plas Hafod Estate Redevelopment Co Ltd | Construction | 2026 |
| Plasma Grove Ltd | Professional & scientific | 2024 |
| Plastering Service Warrington Ltd | Construction | 2022 |
| Plastflo Ltd | Manufacturing | 2026 |
| Plastr Co Ltd | Construction | 2025 |
| Platform Data Centres UK Limited | Information & communication | 2025 |
| Platform Media Ltd | Professional & scientific | 2019 |
| Platform Scaffolding Ltd | Construction | 2024 |
| Platinum Services Consultancy Limited | Information & communication | 2025 |
| Platinum Staffing Limited | Administrative & support | 2018 |
| Platinum Stays Limited | Real estate | 2025 |
| Playdays Pre-School (Woolston) Limited | Education | 2015 |
| Player Construction Consultancy Ltd | Other services | 2019 |
| Playerz Boxing Ltd | Wholesale & retail | 2020 |
| Playground Imagineering Limited | Administrative & support | 2009 |
| Plaza Resources Ltd | Professional & scientific | 2022 |
| Pleasure Care Services Limited | Health & social care | 2019 |
| Plexus Consulting Limited | Professional & scientific | 2017 |
| PLJ Design Services Limited | Administrative & support | 2012 |
| PLM Grips Ltd | Other services | 2020 |
| PLN Consultants Limited | Financial services | 2022 |
| Plot and Property Limited | Real estate | 2026 |
| Plot Twist Productions Limited | Arts & recreation | 2017 |
| Plqs Services Limited | Professional & scientific | 2016 |
| PLT Residential Ltd | Real estate | 2026 |
| Plum Associates Ltd | Information & communication | 2017 |
| Plum Events Limited | Hospitality | 2016 |
| Plum HAT Ltd | Health & social care | 2023 |
| Plum Marketing Limited | Professional & scientific | 2013 |
| Plumb Direct Limited | Construction | 1999 |
| Plumbco Luxury Bathrooms Limited | Construction | 2023 |
| Plumbercraft Ltd | Construction | 2025 |
| Plumbing and Power 24HR Ltd | Construction | 2017 |
| Plumbisimo Ltd | Construction | 2024 |
| Plumbitall Warrington Ltd | Wholesale & retail | 2021 |
| Plumbking Limited | Construction | 2024 |
| Plummer Consultancy Associates Ltd | Professional & scientific | 2023 |
| Plus US Workforce Services LLP | | 2012 |
| Pluto Dudley Limited | Administrative & support | 2014 |
| PLW Joinery Limited | Construction | 2017 |