| Penny Greenhouses Limited | Construction | 2021 |
| Penny Irrigation UK Ltd | Wholesale & retail | 1995 |
| Penny Lane Air BNB Ltd | Hospitality | 2024 |
| Pennys House Limited | Hospitality | 2024 |
| Pentre Coed Management Company Limited | Real estate | 2012 |
| Pepperonis Pizza Limited | Administrative & support | 2018 |
| Peregia Care Consultancy Ltd | Health & social care | 2017 |
| Perfect Plumbing Products Ltd | Wholesale & retail | 2014 |
| Perfectday Limited | Real estate | 1996 |
| Period Property Solutions Building Conservation Limited | Construction | 2005 |
| Permatech Ltd | Construction | 2010 |
| Personal Car Finders UK Ltd | Wholesale & retail | 2018 |
| Petann Engineering Ltd | Manufacturing | 2007 |
| Pete Singleton Ltd | Transport & logistics | 2019 |
| Peter Grandidge Limited | Wholesale & retail | 1974 |
| Peter Halsall Removals and Storage Ltd | Transport & logistics | 2022 |
| Peter Martin Taxis Ltd | Wholesale & retail | 2000 |
| Peter Moran & Associates Limited | Professional & scientific | 2005 |
| Peter Nuttall Consultancy Limited | Professional & scientific | 2025 |
| Peterson Solicitors Ltd | Professional & scientific | 2012 |
| Petpol Limited | Other services | 2019 |
| Pf&L Ltd | Real estate | 2017 |
| PH Forwarding Ltd | Transport & logistics | 2024 |
| Phil Horner Design Limited | Administrative & support | 1998 |
| Phil Mckuhen Properties Ltd | Real estate | 2013 |
| Philani Limited | Health & social care | 2012 |
| Philbin Products Limited | Manufacturing | 2015 |
| Philip Barton Wholesale Meats Limited | Wholesale & retail | 1999 |
| Philro Designs Limited | Professional & scientific | 2001 |
| PHL Industrial Services Ltd | Manufacturing | 2026 |
| Phoenix Catering Limited | Hospitality | 2017 |
| Phoenix Community & Youth Project | Education | 2012 |
| Phoenix Properties Developments Ltd | Construction | 2024 |
| Phoenix Systems (North West) Ltd | Information & communication | 2021 |
| Phoenix Therapy Northwest Ltd | Health & social care | 2011 |
| Phone Clinic Lincoln Ltd | Other services | 2019 |
| Phone Clinic Southport Ltd | Other services | 2020 |
| Photography Middlesbrough Ltd | Wholesale & retail | 2008 |
| Photondale Electrical Services Limited | Energy | 1996 |
| Physiotherapy Direct Limited | Health & social care | 2000 |
| Pickerwood Properties Limited | Real estate | 1998 |
| Pier Recovery Limited | Administrative & support | 2008 |
| Pier Steel UK Ltd | Manufacturing | 2023 |
| Pilkington Floors Ltd | Construction | 2022 |
| Pilkington Road Management Company Limited | Households | 2005 |
| Pinch of Salt Limited | Professional & scientific | 2016 |
| Pine Owners Ltd | Households | 1999 |
| Pinewood Multimedia Marketing Limited | Information & communication | 2019 |
| Pinewoods Enterprises Ltd. | Other services | 2007 |
| Pink String & Sealing WAX Limited | Wholesale & retail | 2024 |
| Pinnacle Engineering & Construction Survey Ltd | Professional & scientific | 2017 |
| Pipewerx Bikes Ltd | Manufacturing | 2010 |
| Pippins Coffee House Limited | Hospitality | 2014 |
| Pirouette Consultants Limited | Professional & scientific | 2012 |
| Pitch and POT Limited | Hospitality | 2026 |
| Pitches for Schools UK Limited | Administrative & support | 2023 |
| Pitstop Offlicence Ltd | Wholesale & retail | 2016 |
| Pixelpartyvr Ltd | Administrative & support | 2023 |
| Pixie Holdings Ltd | Professional & scientific | 2018 |
| PJ Moovz Limited | Transport & logistics | 2024 |
| Pjgs Productions Ltd | Arts & recreation | 2025 |
| Pjnc Limited | Construction | 2012 |
| PJR Tech Consultancy Ltd | Information & communication | 2025 |
| PJS Plumbing Services London Ltd | Construction | 2015 |
| PKK SOLUTIONS34 Ltd | Health & social care | 2026 |
| Plan a (North West) Limited | Professional & scientific | 2012 |
| Plan B for Business Limited | Other services | 2013 |
| Planet Kids Private Day Nursery Limited | Education | 2006 |
| Planning Services (NW) Ltd | Construction | 2010 |
| Plantpartner Limited | Information & communication | 2002 |
| Platinum Civil Engineering Ltd | Construction | 2016 |
| Platinum Landscape and Groundworks NW Ltd | Professional & scientific | 2025 |
| Platinum Place Ltd | Wholesale & retail | 2022 |
| Playline Communications (Liverpool) Limited | | 1988 |
| Playstock Limited | Information & communication | 2025 |
| Plaza Cards Southport Limited | Wholesale & retail | 2012 |
| Plaza Parking Limited | Administrative & support | 2016 |
| Plaza Supermarket Limited | Wholesale & retail | 2023 |
| Pleasant Carpentry Limited | Construction | 2021 |
| Pleasureland Southport Limited | Extraterritorial | 2011 |
| Pledgepot Limited | Other services | 2013 |
| Plumsleisure Ltd | Hospitality | 2024 |
| Pluscat Limited | Professional & scientific | 2015 |
| PMI Insulation Services Limited | Construction | 2007 |
| PML Transport Limited | Transport & logistics | 2009 |
| PMP Global Limited | Wholesale & retail | 2020 |
| PNR Global Ltd | Wholesale & retail | 2010 |
| Point Safety Limited | Manufacturing | 2011 |
| Poke Baltic Ltd | Hospitality | 2025 |
| Polar Blast DRY Ice Blasting Cleaning Ltd | Administrative & support | 2022 |
| Polarblast Ltd | Administrative & support | 2015 |
| Police Leavers Partnership Ltd | Professional & scientific | 2024 |
| Polish Saturday School in Southport Ltd | Education | 2024 |
| Polski Chata Ltd | Wholesale & retail | 2026 |
| Pontis Solutions Ltd | Professional & scientific | 2025 |
| Pooh Sticks Ltd. | Administrative & support | 2017 |
| Pool HEY Caravan Storage Ltd | Real estate | 2022 |
| Poolemackayproperties Ltd | Real estate | 2025 |
| Porano Ltd | Wholesale & retail | 2021 |
| Porcenella Limited | Wholesale & retail | 2023 |