| Prime Plumbing & Electrical Ltd | Construction | 2015 |
| Prime Ventures Limited | Real estate | 2021 |
| Primegrid Consultancy Ltd | Professional & scientific | 2025 |
| Primehr Ltd | Administrative & support | 2025 |
| Primrose Holdings Limited | Health & social care | 2016 |
| Primus Solutions Limited | Information & communication | 2003 |
| Prince Regent Court (Leamington Spa) Limited | Households | 1989 |
| Principle Housing (UK) Limited | Real estate | 2021 |
| Print Connections Holdings Ltd | Professional & scientific | 2009 |
| Print Connections Limited | Manufacturing | 1988 |
| Priory Farm Resident Management Company Limited | Households | 2025 |
| Prism Collective Limited | Financial services | 2024 |
| Pristine Exteriors Limited | Administrative & support | 2021 |
| Pristine Spark Clean Ltd | Administrative & support | 2025 |
| Pritt & Co.,Limited | Wholesale & retail | 1950 |
| Pritt Intertrade Limited | Wholesale & retail | 1951 |
| Private Pharmacy Care Ltd | Health & social care | 2019 |
| Private Wealth Protection Limited | Administrative & support | 2024 |
| Private Wellness Ltd | Other services | 2024 |
| Privilege Housing Ltd | Households | 2021 |
| Pro Academy Rugby Ltd | Education | 2024 |
| Pro Cycling Holidays Limited | Administrative & support | 2022 |
| Pro Division Creative Limited | Information & communication | 2015 |
| Pro GB Consultants Ltd | Financial services | 2023 |
| Pro Mortgages Ltd | Financial services | 2024 |
| Pro Music Tuition (Solihull) Limited | Education | 2023 |
| Pro People Limited | Information & communication | 1996 |
| Pro Services Technology Ltd | Other services | 2018 |
| Pro Surgical Limited | Wholesale & retail | 2013 |
| Pro-Clean Services by JO - Domestic and Commercial Ltd | Administrative & support | 2021 |
| Pro-Team Management Limited | Professional & scientific | 2014 |
| Pro-Tect Heating & Plumbing Ltd | Construction | 2019 |
| Proactive Industries Limited | Manufacturing | 1997 |
| Probate Solicitors Limited | Professional & scientific | 2010 |
| Probate Superstore Limited | Other services | 2020 |
| Probizar Ltd | Wholesale & retail | 2024 |
| Problems Have Solutions Ltd | Information & communication | 2011 |
| Probuild Construction (Birmingham) Ltd | Construction | 2014 |
| Process Analyser Systems Limited | Wholesale & retail | 1996 |
| Proclimate Ltd | Energy | 2011 |
| Procode-Auto Ltd | Wholesale & retail | 2024 |
| Procure-Hire Ltd. | Information & communication | 2018 |
| Product Pulz Limited | Professional & scientific | 2025 |
| Production LX Ltd | Arts & recreation | 2019 |
| Productive Business Consulting Limited | Professional & scientific | 2006 |
| Productivity Britain Limited | Professional & scientific | 2018 |
| Proefficient Limited | Professional & scientific | 2024 |
| Profectus Growth Ltd | Professional & scientific | 2025 |
| Professional Employment Organisation Limited | Other services | 2025 |
| Profile 22 Systems Limited | Extraterritorial | 1990 |
| Profile Espresso Ltd | Wholesale & retail | 2013 |
| Profile Handling Limited | Water & waste | 1997 |
| Profile Handling Services Ltd | Water & waste | 2020 |
| Profinest UK Limited | Professional & scientific | 2014 |
| Profit Partners Ltd | Professional & scientific | 2024 |
| Progression Architects Limited | Professional & scientific | 2005 |
| Progressit Consulting Limited | Information & communication | 2010 |
| Project Annexe Limited | Construction | 2026 |
| Project Avenue Limited | Real estate | 2022 |
| Project Avenue Road Limited | Construction | 2025 |
| Project Civils Ltd | Construction | 2024 |
| Project Dorchester Road Limited | Real estate | 2025 |
| Project Earlswood Limited | Real estate | 2020 |
| Project Echo Ltd | Information & communication | 2021 |
| Project FF Ltd | Administrative & support | 2020 |
| Project Groundworks Ltd | Other services | 2018 |
| Project Kilo U.K. Limited | Professional & scientific | 2012 |
| Project Knowle Limited | Real estate | 2020 |
| Project Kudos Group Limited | Professional & scientific | 2013 |
| Project Lapworth Limited | Real estate | 2021 |
| Project Lugtrout Limited | Real estate | 2022 |
| Project Pinewood Limited | Real estate | 2021 |
| Project Sansome Road Limited | Real estate | 2025 |
| Project Warwick Road Knowle Ltd | Real estate | 2026 |
| Project Widney Limited | Real estate | 2022 |
| Project Wythall Limited | Real estate | 2020 |
| Projex Lettings Limited | Real estate | 2024 |
| Projex Properties Limited | Construction | 2021 |
| Projxflo Ltd | Other services | 2016 |
| Proleap Ltd | Education | 2024 |
| Prolectric Services Limited | Manufacturing | 2002 |
| Prolilium Ltd | Construction | 2026 |
| Proline Care Limited | Administrative & support | 2002 |
| Proline Care Recruitment Limited | Administrative & support | 1997 |
| Prologis (Aztec) Number 1 Limited | Real estate | 2002 |
| Prologis (Aztec) Number 2 Limited | Real estate | 2002 |
| Prologis (Coton Park) Limited | Real estate | 2007 |
| Prologis (Coventry) Limited | Real estate | 1997 |
| Prologis (Cubic Building) Holdings Limited | Administrative & support | 2016 |
| Prologis (Cubic Building) Limited | Administrative & support | 2007 |
| Prologis (Curdworth) Limited | Real estate | 2005 |
| Prologis (Damson Parkway) Limited | Real estate | 2016 |
| Prologis (Dirft Rail) Limited | Real estate | 2007 |
| Prologis (Gillender Street) Limited | Real estate | 2018 |
| Prologis (Hayes) Limited | Real estate | 2003 |
| Prologis (Kettering B1) Limited | Real estate | 2007 |
| Prologis (Kettering B3) Limited | Real estate | 2005 |
| Prologis (Kings Lynn) Limited | Real estate | 2002 |
| Prologis (PHL NO.3) Limited | Real estate | 1998 |
| Prologis (Pineham Park) | Real estate | 2002 |