| Prenton AI Limited | Information & communication | 2025 |
| Prenton Glass Conservatories Limited | Construction | 2013 |
| Prenton Glass Limited | Construction | 2013 |
| Prenton Plumbing Service Ltd | Administrative & support | 2015 |
| Prenton Property Lettings Ltd | Real estate | 2024 |
| Prep 365 Ltd | Wholesale & retail | 2022 |
| Prescott Building Services Ltd | Construction | 2019 |
| Pressure System Integrity Limited | Administrative & support | 2025 |
| Pressure Systems Services Ltd | Professional & scientific | 2024 |
| Presteven Limited | Manufacturing | 1998 |
| Prestige Accommodation Services Ltd | Hospitality | 2021 |
| Prestige Aura Investments Ltd | Real estate | 2025 |
| Prestige Barbers Ltd | Other services | 2018 |
| Prestige Campers Limited | Administrative & support | 2019 |
| Prestige Lawn Care Limited | Administrative & support | 2020 |
| Prestige Paint (Hampshire) Ltd | Administrative & support | 2013 |
| Pretty Little Wigs by Hollie Ltd | Other services | 2021 |
| Pretty Pawsome Ltd | Other services | 2018 |
| Prez Ltd | Wholesale & retail | 2026 |
| Prezzemolo (Oxton ) Limited | Hospitality | 2020 |
| Price Wynne Limited | Other services | 2016 |
| Price Wynne Opticians Limited | Other services | 2024 |
| Pride Angel Limited | Information & communication | 2009 |
| Primary Property Group Ltd | Real estate | 2026 |
| Primary Property Ltd | Real estate | 2025 |
| Primavale Limited | Other services | 2000 |
| Prime Athletic Co Ltd | Education | 2025 |
| Prime GAS Ltd | Construction | 2017 |
| Prime Health and Fitness Centre Limited | Arts & recreation | 2012 |
| Prime Horizon Ventures Ltd. | Real estate | 2023 |
| Prime Imaging Ltd | Health & social care | 2023 |
| Prime Management Contract Services Ltd | Professional & scientific | 2015 |
| Prime Management Solutions (NW) Ltd | Professional & scientific | 2018 |
| Prime Site Properties (North West) Limited | Real estate | 2005 |
| Prime Transitions Limited | Professional & scientific | 2011 |
| Primefigure Limited | Construction | 1999 |
| Primrose Residential Limited | Real estate | 2025 |
| Prince Trading Limited | Wholesale & retail | 2023 |
| Princo Ltd | Real estate | 2017 |
| Print Master Limited | Construction | 2003 |
| Printsave Limited | Wholesale & retail | 2018 |
| Priory Quality Meats Limited | Manufacturing | 1983 |
| Prism North Limited | Professional & scientific | 1998 |
| Prism Vista Limited | Professional & scientific | 2018 |
| Prisma Financial Consulting Ltd | Professional & scientific | 2026 |
| Prisma Holdings Ltd | Financial services | 2021 |
| Pritchard Lettings Limited | Real estate | 2025 |
| Prity & Sristy Food Ltd | Hospitality | 2022 |
| PRJ Vehicle Services Ltd | Transport & logistics | 2025 |
| PRK Engineering Limited | Administrative & support | 2007 |
| PRK Group Ltd | Wholesale & retail | 2025 |
| PRM (Wirral) Ltd | Wholesale & retail | 2018 |
| Pro Active Physio Limited | Health & social care | 2010 |
| Pro Rent Wirral Ltd | Real estate | 2023 |
| Pro-Fit Interior Solutions Ltd | Construction | 2017 |
| PRO-SPORT1 Limited | Other services | 2009 |
| Proactive Consulting for Professionals Limited | Administrative & support | 2000 |
| Proactive Me&P (NW) Limited | Professional & scientific | 2025 |
| Proactive Vehicle & Equipment Finance Ltd | Financial services | 2020 |
| Probate Promise Ltd | Administrative & support | 2024 |
| Probus Hoylake Management Limited | Real estate | 2013 |
| Process Engineering Supplies (NW) Ltd | Wholesale & retail | 2013 |
| Process Partners Limited | Water & waste | 1992 |
| Proclean Facilities Solutions Limited | Administrative & support | 2025 |
| Prodstack Labs Ltd | Information & communication | 2016 |
| Proelium Consulting Ltd | Professional & scientific | 2014 |
| Proelium Strategy Ltd | Professional & scientific | 2025 |
| Professional Aesthetics Limited | Health & social care | 2015 |
| Professional Yacht Deliveries Holdings Limited | Financial services | 2018 |
| Professional Yacht Deliveries Limited | Transport & logistics | 2010 |
| Professionals on the Move (Wirral) Limited | Real estate | 2011 |
| Profitlocker Limited | Professional & scientific | 2017 |
| Proform Group Limited | Manufacturing | 2019 |
| Programmable Logic Controller Professionals Ltd | Administrative & support | 2012 |
| Programme Officer Solutions Ltd | Administrative & support | 2011 |
| Progressive Business Consulting Limited | Professional & scientific | 2001 |
| Progressive Development Services Limited | Information & communication | 2015 |
| Project Ashton Limited | Administrative & support | 2020 |
| Project SEN Limited | Administrative & support | 2022 |
| Project Themis Limited | Administrative & support | 2022 |
| Promenade Flat Management Company Limited | Real estate | 1978 |
| Proofsouth Limited | Professional & scientific | 1998 |
| Propel Advisory Limited | Real estate | 2018 |
| Propeller Ventures Limited | Real estate | 2013 |
| Property 127 Ltd | Real estate | 2021 |
| Property 757 Ltd | Real estate | 2019 |
| Property Counts Ltd | Professional & scientific | 2021 |
| Property in Wirral Limited | Real estate | 2022 |
| Property Investments Liverpool Ltd | Real estate | 2019 |
| Property Report Management Services Limited | Households | 2023 |
| Property Search Solutions Limited | Administrative & support | 2025 |
| Propex Consultancy Limited | Administrative & support | 2025 |
| Propguard Ltd | Information & communication | 2026 |
| Prospect Capital Holdings Limited | Information & communication | 2015 |
| Prospect Curve Limited | Real estate | 2025 |
| Prospective Plumbing & Heating Limited | Construction | 2020 |
| Prospective Property Developments Ltd | Construction | 2023 |
| Protected Facades Ltd | Construction | 2026 |
| Protectorglaze Ltd | Construction | 2010 |
| Provargo UK Ltd | Other services | 2019 |