| Pinnacle Finance Consultants Ltd | Professional & scientific | 2015 |
| Pinnacle Worksurfaces Limited | Manufacturing | 2024 |
| Pipetech Mechanical Limited | Construction | 1995 |
| Pitch and Key Investments Ltd | Real estate | 2025 |
| Pittaway Transport Ltd | Extraterritorial | 2022 |
| Pivot School Limited | Information & communication | 2026 |
| Pizza Crust (Online) Ltd | Hospitality | 2019 |
| PJ & Partners Ltd | Real estate | 2024 |
| PJ Tate Ltd | Administrative & support | 2024 |
| PJB Trading Ltd | Wholesale & retail | 1996 |
| Pjbrown Consultancy Limited | Professional & scientific | 2026 |
| PJH AI Ltd | Information & communication | 2026 |
| PJJ Design Automation Services Limited | Professional & scientific | 2025 |
| Pkcustoms Ltd | Wholesale & retail | 2026 |
| Plain Services Limited | Other services | 2025 |
| Planet Grip Limited | Information & communication | 2013 |
| Plant and Access Transport Limited | Transport & logistics | 2016 |
| Plant'D Limited | Wholesale & retail | 2022 |
| Playroom Pictures Ltd | Information & communication | 2022 |
| Pljr Enterprises Limited | Financial services | 2018 |
| Plot TEN Ltd | Construction | 2022 |
| Plotwist Limited | Wholesale & retail | 2024 |
| Plugin Power Limited | Extraterritorial | 2019 |
| Plumb Ventures Ltd | Financial services | 2020 |
| Plumb-Jet Limited | Construction | 2026 |
| Plumbly & Gaze Limited | Agriculture & fishing | 1954 |
| Plymouth Property (Midlands) Limited | Real estate | 2016 |
| PMK Productions Limited | Other services | 2009 |
| Pmwb Limited | Information & communication | 2017 |
| Pmwb Properties Limited | Real estate | 2022 |
| Pnod Holdings Ltd | Financial services | 2025 |
| PNR UK Limited | Manufacturing | 1988 |
| Pockets UK Limited | Administrative & support | 2001 |
| Podsmead Residential Care Limited | Health & social care | 2009 |
| POH Limited | Arts & recreation | 2018 |
| Point Remote Limited | Information & communication | 2024 |
| Polaris Children's Services Limited | Health & social care | 2008 |
| Polaris E-Commerce Platform Limited | Wholesale & retail | 2026 |
| Polka DOT Consultancy Limited | Extraterritorial | 2025 |
| Polymount England Ltd | Professional & scientific | 2010 |
| Pomegranate Pictures Limited | Arts & recreation | 2024 |
| Poplar Carpet Centre Limited | Wholesale & retail | 2001 |
| Populus Solutions Ltd | Administrative & support | 2022 |
| Portcullis Financial Planning Limited | Financial services | 2007 |
| Positive Paws Limited | Professional & scientific | 2023 |
| Postyouth Ltd | Information & communication | 2019 |
| Powder Mold Ltd | Manufacturing | 2025 |
| Power Heating Plants Limited | Wholesale & retail | 2012 |
| Powerlink Project Management Limited | Professional & scientific | 2019 |
| Powerspark Ignition Ltd | Wholesale & retail | 2011 |
| Powertech Controls Limited | Construction | 1991 |
| Pralla Limited | Wholesale & retail | 2019 |
| PRE Employment Referencing and Screening Services Limited | Information & communication | 2009 |
| Precision Quality Services Ltd | Professional & scientific | 2024 |
| Preloved Caravan Awnings Ltd | Wholesale & retail | 2012 |
| Premier Farming Group (Midlands) Ltd | Professional & scientific | 2011 |
| Premier Flooring (Midlands) Limited | Construction | 2006 |
| Premier Processing Services Limited | Information & communication | 1999 |
| Prenata Limited | Manufacturing | 2025 |
| Prestige City Views Ltd | Real estate | 2025 |
| Prestige Properties Holdings Ltd | Real estate | 2025 |
| Prestige Protec Systems Limited | Other services | 1989 |
| Prestigepomsx Ltd | Professional & scientific | 2024 |
| Price & Oliver 1934 Ltd | Wholesale & retail | 2024 |
| Prime Ticket Productions Limited | Information & communication | 1989 |
| Primeway Global Ltd | Wholesale & retail | 2026 |
| Primex Wireless Limited | Administrative & support | 2005 |
| Prinford Properties Ltd | Real estate | 2019 |
| Prior Pubs Limited | Hospitality | 2025 |
| Prior Wharf Hanbury Management Limited | Real estate | 2007 |
| Prism Data Technologies Limited | Wholesale & retail | 2026 |
| Private Pathology Services Limited | Health & social care | 2009 |
| Prive Limited | Professional & scientific | 2012 |
| Pro Valentine Ltd | Health & social care | 2017 |
| Pro-Cure Building Services Ltd | Construction | 2022 |
| PRO20 Ltd | Wholesale & retail | 2021 |
| Probert Griffiths Contracting Limited | Construction | 2005 |
| Proco Coatings & Laminates Limited | Wholesale & retail | 2009 |
| PROCRUIT360 Limited | Administrative & support | 2025 |
| Procurement and Supply Chain Solutions Ltd | Professional & scientific | 2024 |
| Proderma Medical Ltd | Other services | 2025 |
| Professional Landscaping Referral Network Ltd | Professional & scientific | 2025 |
| Profit Driven Consulting Ltd | Professional & scientific | 2024 |
| Project Associates Limited | Construction | 2009 |
| Promabuild Ltd | Construction | 2024 |
| Promethean Productions Limited | Information & communication | 2013 |
| Promostint Limited | Information & communication | 2015 |
| Promotive Ltd | Manufacturing | 2004 |
| Prompting Plus Ltd | Information & communication | 2004 |
| Property City Limited | Construction | 2018 |
| Property Group (Midlands) Ltd | Real estate | 2018 |
| Property Hub Echo Limited | Real estate | 2023 |
| Property Services Central Limited | Other services | 2012 |
| Prospect Hill Ltd | Households | 2018 |
| Protec Aviation Ltd | Wholesale & retail | 2024 |
| Proteck-Uk Ltd | Manufacturing | 2023 |
| Providence Place Investments Ltd | Real estate | 2016 |
| Prudence Picture Company Limited | Arts & recreation | 2024 |
| PRV Plant Services Limited | Administrative & support | 2002 |
| PT Carcare Ltd | Wholesale & retail | 2026 |