| Panjab Services Ltd | Transport & logistics | 2026 |
| Panoptic Media SEO Ltd | Professional & scientific | 2022 |
| Panther Gate Property Limited | Real estate | 2024 |
| Pantinovatrans Ltd | Administrative & support | 2019 |
| Pantling Osborne Limited | Manufacturing | 2002 |
| Pantry Pro AI Limited | Information & communication | 2025 |
| Pantyffynon Limited | Health & social care | 2011 |
| Papa Bonito Limited | Hospitality | 2025 |
| Paper & Cloth Limited | Professional & scientific | 2007 |
| Papg Interiors Limited | Professional & scientific | 2016 |
| PAPILIO3 Ltd | Administrative & support | 2022 |
| Pappaartzi Limited | Manufacturing | 2023 |
| Paps Services Ltd | Information & communication | 2026 |
| Paradigm 42 Limited | Professional & scientific | 2015 |
| Paradigm DUE Diligence Limited | Financial services | 2019 |
| Paradigm Infrastructure II Limited | Construction | 2020 |
| Paradigm Infrastructure Limited | Construction | 2019 |
| Paradigm Infrastructure Management Services Limited | Information & communication | 2024 |
| Paradise Office Ltd. | Wholesale & retail | 2017 |
| Paragon Construction Group Ltd | Other services | 2023 |
| Paragon Leisure Group Limited | Financial services | 2011 |
| Paragon Project Management Services Limited | Professional & scientific | 2021 |
| Paragon Property Rental and Lettings Ltd | Real estate | 2025 |
| Paragon Trade Solutions Ltd | Health & social care | 2018 |
| Param Personnel Certification Ltd | Professional & scientific | 2025 |
| Param Qualifications Ltd | Education | 2025 |
| Paramount Health & Fitness Limited | Other services | 2009 |
| Paraschiv & Associates Limited | Professional & scientific | 2023 |
| Parasol Polly Ltd | Manufacturing | 2023 |
| Paratac Ltd | Health & social care | 2007 |
| Paratech Coating UK Limited | Professional & scientific | 2002 |
| Parc (Essex) | Other services | 1997 |
| Parcel Empower Ltd | Transport & logistics | 2022 |
| Parekh House Ltd | Wholesale & retail | 2016 |
| Pareto Interim Management Ltd. | Professional & scientific | 2013 |
| Parfitt Taylor Limited | Professional & scientific | 2018 |
| Parigo Horticultural Co. Limited | Agriculture & fishing | 1968 |
| Parilla Limited | Manufacturing | 2025 |
| Parinaama Limited | Professional & scientific | 2019 |
| Parish & Associates Limited | Hospitality | 2021 |
| Parish Joinery Partners LLP | | 2023 |
| Park Aluminium Limited | Agriculture & fishing | 2009 |
| Park Bidco Limited | Transport & logistics | 2020 |
| Park Court Management (Raunds) Limited | Households | 2001 |
| Park Dental Care Limited | Health & social care | 2005 |
| Park Green Solutions Limited | Professional & scientific | 2024 |
| Park Home Assist Limited | Administrative & support | 2005 |
| Park House Holdco Limited | Professional & scientific | 2020 |
| Park Lane Developments (Oxfordshire) Limited | Construction | 2020 |
| Park Lane Roofing & Building Ltd | Construction | 2025 |
| Park Lane Windows Ltd | Manufacturing | 1994 |
| Park Scientific Ltd | Manufacturing | 1981 |
| Park Street (Flat 6) Limited | Real estate | 2024 |
| Park View Apartment Management Co. Ltd | Households | 2001 |
| Park View Cafe London Ltd | Hospitality | 2019 |
| Park View Court RTM Company Limited | Real estate | 2017 |
| Park View Flats Management (Rushden) Limited | Households | 2006 |
| Parker & Pearl Limited | Real estate | 2025 |
| Parker Puppetry Limited | Arts & recreation | 2021 |
| Parkerr Contracting & Installation Ltd | Construction | 2011 |
| Parkers Decorating Limited | Construction | 2007 |
| Parkershouse Consultancy Limited | Information & communication | 2026 |
| Parkerson Landscapes Limited | Administrative & support | 2016 |
| Parkes PUB Holdings Limited | Hospitality | 2020 |
| Parkinson Yorke Limited | Professional & scientific | 1998 |
| Parklife Property Developers Ltd | Construction | 2023 |
| Parks PCN Limited | Health & social care | 2023 |
| Parkview (127 Harlestone Road) Limited | Households | 1989 |
| Parkway Coffee Ltd | Hospitality | 2024 |
| Parllaku Hand Car Wash Ltd | Other services | 2017 |
| Parllaku Tiling Ltd | Construction | 2017 |
| Parmoor Property Limited | Real estate | 2016 |
| Parparak Ltd | Extraterritorial | 2022 |
| Parquet Period (London) Limited | Construction | 2016 |
| Parrs Motor Spares Limited | Wholesale & retail | 2002 |
| Parry Smith Consulting Limited | Professional & scientific | 2025 |
| Parsa Transport Ltd | Transport & logistics | 2018 |
| Parslow and Poole Property Limited | Real estate | 2020 |
| Parsons Plumbing & Heating Services Ltd | Construction | 2025 |
| Part 8 Consulting Ltd | Professional & scientific | 2010 |
| Parterra Limited | Health & social care | 2022 |
| PARTIES2AMAZE Limited | Wholesale & retail | 2009 |
| Partnerscale Limited | Administrative & support | 2024 |
| Parts Auto Ltd | Wholesale & retail | 2023 |
| Partsulike Ltd | Wholesale & retail | 2014 |
| Party Decorator Ltd | Arts & recreation | 2019 |
| Parv Building Solutions Ltd | Real estate | 2015 |
| Parvaim Properties Ltd | Real estate | 2025 |
| Pasa Logistics Ltd | Transport & logistics | 2018 |
| Pasha Y&M Ltd | Other services | 2021 |
| Pasion Maison Ltd | Real estate | 2019 |
| Pasionet-It Ltd | Information & communication | 2013 |
| Pasre Group Limited | Construction | 2025 |
| Pass Fibre Ltd | Information & communication | 2025 |
| Passa Trans Ltd | Transport & logistics | 2021 |
| Passion Projects Software & Consultancy Limited | Information & communication | 2023 |
| Passion to Care Homes Ltd | Health & social care | 2023 |
| Passion to Care Services Ltd | Health & social care | 2020 |
| Past Care Ltd | Health & social care | 2025 |
| Pastor Logistic Ltd | Transport & logistics | 2019 |