| P2P IT Ltd | Information & communication | 2007 |
| PA Hospitality Group Ltd | Hospitality | 2026 |
| Pace Heating & Plumbing Ltd | Construction | 2018 |
| Pacheco Fencing Limited | Manufacturing | 2021 |
| Package Drink Solutions Limited | Manufacturing | 2019 |
| Packsmithco Limited | Wholesale & retail | 2026 |
| Paediatric and Perinatal Pathology Services Ltd | Health & social care | 2019 |
| Pain Medicine Consultancy and Training Ltd | Health & social care | 2011 |
| Paint Worx Autobodyshop Ltd | Wholesale & retail | 2023 |
| Pajo Accounting Limited | Professional & scientific | 2023 |
| Palanchai Ltd | Hospitality | 2023 |
| Palma 17 Limited | Financial services | 2021 |
| Palmer and RAY Properties Limited | Real estate | 2019 |
| Pancino Ltd | Professional & scientific | 2018 |
| Pandorium Limited | Wholesale & retail | 2021 |
| Panoramic Events Limited | Administrative & support | 2018 |
| Panpharma UK Limited | Manufacturing | 2015 |
| Panshop Group UK Ltd | Other services | 2019 |
| Paper Box (Southport) Ltd | Wholesale & retail | 2023 |
| Paradigm Accountancy Limited | Professional & scientific | 2011 |
| Paradise Indian Grill Ltd | Hospitality | 2022 |
| Pared Services Ltd | Other services | 2016 |
| Parenting 2000 | Education | 1994 |
| Parian Consulting Ltd | Professional & scientific | 2023 |
| Park Avenue (Southport) Management Company Limited | Households | 1982 |
| Park Avenue (Southport) Residents Limited | Households | 2020 |
| Park Court Management Company (Southport) Limited | Households | 1963 |
| Park Crescent Management Limited | Households | 1986 |
| Park Road Clinic Limited | Health & social care | 2022 |
| Park View Court (Southport) Management Company Limited | Households | 2003 |
| Parkes Domestic and Commercial Limited | Construction | 2023 |
| Parkinson Vehicle Refinishers Limited | Manufacturing | 2008 |
| Parklands (Southport) Management Limited | Extraterritorial | 1974 |
| Parlour Parlour Limited | Manufacturing | 2020 |
| Parr Export Services Limited | Wholesale & retail | 2022 |
| Parr International Limited | Extraterritorial | 2002 |
| Parr Online Limited | Wholesale & retail | 2022 |
| Parsum Property Ltd | Real estate | 2024 |
| Part Catering Ltd | Hospitality | 2017 |
| Passion Floors Ltd | Construction | 2016 |
| PAT MAT Logistics Ltd | Information & communication | 2019 |
| Patch Lead Limited | Information & communication | 2024 |
| Paternoster Ventures Limited | Real estate | 2020 |
| Pathway UK Limited | Information & communication | 1998 |
| Pathways Mentoring Systems Ltd | Information & communication | 2023 |
| Pato Interiors Ltd. | Wholesale & retail | 2020 |
| Patricia Carina Ltd | Transport & logistics | 2023 |
| Patrick's Building Services Ltd | Manufacturing | 2020 |
| Patternay Ltd | Extraterritorial | 2023 |
| Pattison Studio Ltd | Professional & scientific | 2023 |
| Paul Bennett Assessments Ltd | Education | 2013 |
| Paul Ennis Group Limited | Construction | 2016 |
| Paul Ridgeway Ltd | Financial services | 2014 |
| Paul Stone International Limited | Arts & recreation | 1995 |
| Paula Gladys Meadows Limited | Extraterritorial | 2024 |
| Paulmart Limited | Transport & logistics | 1990 |
| Paunescu ANA Ltd | Transport & logistics | 2024 |
| PAV Transport NW Ltd | Transport & logistics | 2026 |
| Pavi K Convenience Store Ltd | Wholesale & retail | 2026 |
| Paving Design & Build Limited | Construction | 2012 |
| PAYLESS4PAYROLL Ltd | Other services | 2012 |
| Paymentshield Group Holdings Limited | Financial services | 2006 |
| Paymentshield Limited | Financial services | 1992 |
| Paymentshield Services Limited | Administrative & support | 2016 |
| Payroll Processing Ltd. | Information & communication | 1999 |
| PB Manchester Limited | Hospitality | 2018 |
| Pbec UK Ltd | Professional & scientific | 2024 |
| PBG Acumen Limited | Information & communication | 2014 |
| PBG Management Limited | Administrative & support | 2016 |
| PBT Media Relations Limited | Information & communication | 2007 |
| Pbuk Limited | Real estate | 2026 |
| PCD Care Limited | Health & social care | 2015 |
| PCG Holdings Ltd | Real estate | 2020 |
| PCI Instruments Limited | Manufacturing | 2000 |
| Pcole Security Services Ltd | Administrative & support | 2025 |
| PDM Contracting Ltd | Construction | 2018 |
| PDX Solutions & Consultancy Ltd | Information & communication | 2013 |
| PDX Technical Solutions Limited | Information & communication | 2014 |
| PE Building Limited | Construction | 2017 |
| Peace Transport Limited | Transport & logistics | 2018 |
| Peachstone Consulting Ltd | Professional & scientific | 2025 |
| Peachy Pups Ltd | Agriculture & fishing | 2025 |
| Peacocks Education Limited | Education | 2011 |
| Pear Tree Cattery Ltd | Hospitality | 2022 |
| Pearce Development Group Limited | Construction | 2019 |
| Peartree Freight Services Limited | Transport & logistics | 2025 |
| Pebble Protection Ltd | Financial services | 2017 |
| Pebbles & Treasures Ltd | Arts & recreation | 2021 |
| Peers Consultancy (UK) Limited | Professional & scientific | 2010 |
| Peets Potted Shrimps Limited | Wholesale & retail | 2011 |
| Pegasus Benefits Ltd | Financial services | 2021 |
| Peggys Music Bar Ltd | Hospitality | 2021 |
| Peleg Software Solutions Ltd | Information & communication | 2022 |
| Pelorus Chauffeurs Limited | Transport & logistics | 2023 |
| Pelorus Group Limited | Transport & logistics | 2019 |
| Pendon Energy Ltd | Professional & scientific | 2021 |
| Penetra International Limited | Wholesale & retail | 2012 |
| Penlea Capital Limited | Professional & scientific | 2018 |
| Pennantaviation Ltd | Administrative & support | 2023 |
| Pennington Silver Limited | Professional & scientific | 2007 |