| P M W Electrical Limited | Construction | 2003 |
| P W DRY Lining Services Limited | Construction | 2011 |
| P&D Brickwork Ltd | Construction | 2022 |
| P.G. Allder and Partners Limited | Wholesale & retail | 1937 |
| P.W.R Motors Ltd | Wholesale & retail | 2020 |
| Pacey Media Ltd | Professional & scientific | 2026 |
| Packserve Limited | Administrative & support | 2000 |
| Padwork.App Ltd | Information & communication | 2026 |
| Pagan & Mcquade (Hartlepool) Limited | Health & social care | 2001 |
| Pagan & Mcquade Hearing Limited | Wholesale & retail | 2019 |
| Pagon Limited | Construction | 2015 |
| PAH PUB Management Limited | Hospitality | 2018 |
| Paneora Properties Limited | Real estate | 1973 |
| Paradise Tanning Studio Ltd | Other services | 2013 |
| Paragon Freight Consultants Ltd | Transport & logistics | 2017 |
| Parallel Vision Clothing Limited | Wholesale & retail | 2026 |
| PARAS244 Limited | Hospitality | 2025 |
| Parcel Planet Limited | Transport & logistics | 2018 |
| Partridge Opticians Ltd | Health & social care | 2024 |
| Pastry Chefs Ltd | Manufacturing | 2020 |
| Paul Kenyon Financial Services Ltd | Financial services | 2020 |
| Paul Rutter Opticians Ltd | Health & social care | 2006 |
| Paul Verity Opticians Limited | Health & social care | 2002 |
| Pave Resin Ltd | Construction | 2023 |
| Paws Dog Training and Pet Services Limited | Administrative & support | 2018 |
| PAX Innovations Limited | Wholesale & retail | 2023 |
| Pbnw Investments Limited | Financial services | 2023 |
| Pclapa Trust | Health & social care | 2024 |
| PCS Access Limited | Administrative & support | 2026 |
| Peak Joinery Limited | Construction | 2002 |
| Pearl Premium Cars Limited | Wholesale & retail | 2025 |
| Pearsons Waste Management Limited | Water & waste | 2018 |
| Peel and Gudgin Ltd | Health & social care | 2008 |
| Peel Hall Medical Practice Limited | Health & social care | 2024 |
| Peepers Banbury Limited | Wholesale & retail | 2024 |
| Pendle Doors Limited | Manufacturing | 1997 |
| Penguin Holdings Ltd | Financial services | 2018 |
| Penguin Optical Ltd | Professional & scientific | 2013 |
| Peninsula Hearing Care Limited | Health & social care | 2010 |
| Pennine Rehab Ltd | Health & social care | 2025 |
| Penzora Ltd | Wholesale & retail | 2009 |
| Peoples Coffee (Shopping Centre 1) Limited | Hospitality | 2017 |
| Peoples Coffee Darwen Ltd | Hospitality | 2018 |
| Perfect Kitchens and Bedrooms Ltd | Information & communication | 2023 |
| Persia Incorporated Ltd | Financial services | 2025 |
| Pery Laerd Limited | Administrative & support | 2013 |
| Petals Maintenance Services (PMS) Ltd | Administrative & support | 2012 |
| Peters Optical (Propco) Limited | Real estate | 2026 |
| Peters Optical Newmarket Ltd | Health & social care | 2015 |
| Petrotrade Limited | Wholesale & retail | 2022 |
| PG Allder (Ampthill) Limited | Wholesale & retail | 2026 |
| PG Allder (Barton) Limited | Wholesale & retail | 2026 |
| PG Allder (Biggleswade) Limited | Wholesale & retail | 2026 |
| PG Allder (Dunstable) Limited | Wholesale & retail | 2026 |
| PG Allder (Flitwick) Limited | Wholesale & retail | 2026 |
| PG Allder (Harpenden) Limited | Wholesale & retail | 2026 |
| PG Allder (Leighton Buzzard) Limited | Wholesale & retail | 2026 |
| PG Allder (Letchworth) Limited | Wholesale & retail | 2026 |
| PG Allder (Sandy) Limited | Wholesale & retail | 2026 |
| PG Allder (ST Neots) Limited | Wholesale & retail | 2026 |
| PGW Drylining Ltd | Construction | 2022 |
| PHARMA4U Limited | Extraterritorial | 2011 |
| Pharmaseekers Limited | Administrative & support | 2003 |
| Phillip SMY Ltd | Health & social care | 2002 |
| Phoenix Motorsports Limited | Wholesale & retail | 2011 |
| PI Construction Ltd | Construction | 2026 |
| Pilbeam Opticians Limited | Health & social care | 2005 |
| Pilkington Construction & Civils Limited | Construction | 2014 |
| Pimlico Property Management Ltd | Real estate | 2016 |
| Pinder & Moore Limited | Wholesale & retail | 1999 |
| Pioneer Print Solutions Holdings Limited | Professional & scientific | 2010 |
| Pipbee Taverns Ltd | Hospitality | 2021 |
| Pippa Limited | Health & social care | 2022 |
| Pizza Sophia Ltd | Hospitality | 2019 |
| Plaiter Enterprises Ltd | Professional & scientific | 2010 |
| Plan B Intelligent Ltd | Professional & scientific | 2017 |
| Plasticsheets Ltd | Wholesale & retail | 2008 |
| Platform Marketing Limited | Wholesale & retail | 2022 |
| Platinum Car & Commercials Ltd | Wholesale & retail | 2024 |
| Platinum Corporate Travel North West Ltd | Transport & logistics | 2019 |
| Platinum Roofing and Property Maintenance Ltd | Construction | 2022 |
| Plimview Limited | Wholesale & retail | 2016 |
| Plot 2 Victoria Gardens Limited | Real estate | 2022 |
| Plotagonist Ltd | Information & communication | 2021 |
| PM Empire Ltd | Manufacturing | 2015 |
| PM Property Developments (North West) Ltd | Construction | 2026 |
| Pm&Dw Leech Limited | Hospitality | 2018 |
| PMC5 Ltd | Professional & scientific | 2024 |
| Pmffi Limited | Professional & scientific | 2023 |
| PN Property Investments Limited | Real estate | 2023 |
| Polyglot Administration Ltd | Administrative & support | 2022 |
| POP Patrol Bury Ltd | Wholesale & retail | 2023 |
| POP Patrol Kiosks Ltd | Wholesale & retail | 2022 |
| POP Patrol Manchester Ltd | Wholesale & retail | 2023 |
| POP Patrol Wigan Ltd | Wholesale & retail | 2021 |
| Popcon Events Ltd | Administrative & support | 2022 |
| Pople & Broad Limited | Health & social care | 2007 |
| Porta Guard Ltd | Manufacturing | 2009 |
| Portafino Group Ltd | Real estate | 2024 |
| Poseidon Training Ltd | Administrative & support | 2024 |