| Paradox Centre Ltd | Real estate | 2024 |
| Parag Ltd | Real estate | 2026 |
| Paragon ZH Limited | Real estate | 2018 |
| Parakletos Capital Limited | Financial services | 2019 |
| Param and Sons Limited | Construction | 2026 |
| Param Company and Sons Limited | Construction | 2026 |
| Paramount Consultancy Limited | Hospitality | 2019 |
| Paratha Inn Ltd | Hospitality | 2019 |
| Parbrook Estate Management Company Limited | Households | 2004 |
| Parc-Y-Coed (NO:2) Management Company Limited | Other services | 2004 |
| Parch Hill Mitcham Ltd | Education | 2019 |
| Parent Record Ltd | Information & communication | 2026 |
| Parents Against Crime CIC | Health & social care | 2025 |
| Parh Ltd | Administrative & support | 2023 |
| Parikh Estates Limited | Wholesale & retail | 2019 |
| Parikh Properties Limited | Hospitality | 2019 |
| Park Avenue Building Limited | Construction | 2018 |
| Park Central (Zone 11) Building a Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Building B Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Building C Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Building D Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Building E Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Building F Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Estate a, B & C Management Company Limited | Households | 2017 |
| Park Central (Zone 11) Estate D, E and F Management Company Limited | Households | 2017 |
| Park Edge Management (Wellingborough) Limited | Households | 2010 |
| Park Farm (Newlands) Management Limited | Households | 2007 |
| Park Farm (Thornbury) Community Interest Company | Households | 2016 |
| Park Farm Wellbeing Limited | Administrative & support | 2009 |
| Park Garage Group PLC | Wholesale & retail | 1998 |
| Park House (Palatine Road) Management Company Limited | Households | 1996 |
| Park Lane Lime Tree Court Residents Company Limited | Households | 2006 |
| Park Lane Management Company Limited | Construction | 2002 |
| Park Limited | Households | 1997 |
| Park Lunch Ltd | Information & communication | 2019 |
| Park Place (Woking) Residents Limited | Households | 1984 |
| Park Place Plaza Management Limited | Real estate | 2016 |
| Park Rise (73 Seymour Grove) RTM Company Limited | Households | 2020 |
| Park Road (Kingston) Flats Limited | Households | 2013 |
| Park View (Beckenham) Management Company Limited | Households | 2014 |
| Park View (Feltham) Residents Company Limited | Households | 2017 |
| Park View (Sevenoaks) Management Limited | Households | 1999 |
| Park View Alexandra Road Company Ltd | Households | 2023 |
| Park View Court (Prestwich) Management Limited | Households | 1972 |
| Park View Court Residents Association (Eaton Ford) Limited | Households | 1984 |
| Park View Management (Bristol) Limited | Households | 2007 |
| Park Villas (Huntingdon) Management Company Limited | Households | 1996 |
| Parkerbarnes Transport Consultancy Limited | Administrative & support | 2005 |
| Parkers Consulting Group Limited | Information & communication | 2015 |
| Parkfield Burgess Hill Ltd | Households | 2014 |
| Parkfield Management Company (Liverpool) Limited | Real estate | 2006 |
| Parkhill Motor Company Limited | Wholesale & retail | 2019 |
| Parkhouse Property (Southend) Limited | Real estate | 2023 |
| Parkhouse Property Holdings Limited | Real estate | 2019 |
| Parklands Court Management Company Limited | Households | 1985 |
| Parklands Heights Management Company Limited | Households | 2005 |
| Parklane Property Management Ltd | Real estate | 2020 |
| Parklight Properties Limited | Real estate | 2012 |
| Parkside Mansions Management Company Limited | Households | 2001 |
| Parkside Property Limited | Construction | 2016 |
| Parkside Residents (Watford) Limited | Households | 1971 |
| Parkside Yaxley Management Company Limited | Households | 2010 |
| Parkview (Chivalry Road) Management Limited | Real estate | 1986 |
| Parkview Bristol LLP | | 2017 |
| Parkview Kingdom Ltd | Real estate | 2020 |
| Parkview Managements (Epsom) Limited | Households | 1970 |
| Parkwood Catering Ltd | Hospitality | 2025 |
| Parla Italiano Ltd | Education | 2018 |
| Parnas (UK) Limited | Wholesale & retail | 2013 |
| Parousia Limited | Professional & scientific | 2020 |
| Parr Care Ltd | Wholesale & retail | 2016 |
| Parry Murray & Company Limited | Wholesale & retail | 1929 |
| Parshwa Tech Limited | Professional & scientific | 2024 |
| Parsons Mews Management Company Limited | Households | 2007 |
| Part Exchange Warehouse Ltd | Wholesale & retail | 2023 |
| Parthenon GR Limited | Hospitality | 2024 |
| Partners 11 Limited | Hospitality | 2025 |
| Partnership Recruitment & Training Ltd | Administrative & support | 2022 |
| Parwin Beauty Ltd | Wholesale & retail | 2024 |
| PAS Technical Services Limited | Professional & scientific | 2007 |
| Pasha Autotech Ltd | Wholesale & retail | 2025 |
| Pass & Present 68 Ltd | Construction | 2019 |
| Pass Education Ltd | Education | 2025 |
| Passage Travel Ltd | Administrative & support | 2025 |
| Passing Spider Limited | Information & communication | 2014 |
| Passion Play Ltd | Wholesale & retail | 2025 |
| Passion Salon Limited | Other services | 2024 |
| Passive Schools Ltd | Extraterritorial | 2018 |
| Passivhaus Schools Ltd | Administrative & support | 2017 |
| Pasta Events Ltd | Hospitality | 2022 |
| Pasteis DE Feliciano Ltd | Wholesale & retail | 2025 |
| Pastures Wesham Management Company Limited | Households | 2015 |
| Pastures Wesham Management Company NO 2 Limited | Households | 2017 |
| Pasubio Investments Ltd | Real estate | 2026 |
| Pasubio Ltd | Wholesale & retail | 2023 |
| PAT & Co Management Consultants Ltd | Professional & scientific | 2019 |
| PAT Builders Solutions Ltd | Manufacturing | 2021 |
| Patagonia Property Holdings Limited | Real estate | 2026 |
| Patch Meadow (Somerton) Management Company Limited | Households | 2018 |
| Patel & Brothers Enterprises Limited | Financial services | 2025 |