| Padehead Electric Technology Co., Ltd | Extraterritorial | 2020 |
| Padex Padel Ltd | Manufacturing | 2025 |
| Padley Associates Ltd | Administrative & support | 2021 |
| Paediatric Healthtech Ltd | Wholesale & retail | 2020 |
| Page and Winter Limited | Administrative & support | 2022 |
| Page Country Parks Limited | Hospitality | 2022 |
| Page Property Partners Limited | Real estate | 2019 |
| Pagnol&Hung Leather Studio Ltd | Manufacturing | 2024 |
| PAINT4PERFECTION Limited | Construction | 2022 |
| Pake Services UK Limited | Manufacturing | 2013 |
| Palace Produce Ltd | Wholesale & retail | 2012 |
| Palasha Ltd | Professional & scientific | 2022 |
| Palawan Trading Co., Ltd | Wholesale & retail | 2024 |
| Palestine Publishing House Limited | Information & communication | 2026 |
| Pali RAO Limited | Manufacturing | 2004 |
| Pallet Company Lans Ltd | Wholesale & retail | 2016 |
| Palm Harbour Capital LLP | | 2018 |
| Palm Property Investment Ltd | Real estate | 2023 |
| Palmer Oncology Ltd | Health & social care | 2024 |
| Palynova Limited | Administrative & support | 2009 |
| Pampisford Properties Limited | Real estate | 2000 |
| PAN Voice Limited | Wholesale & retail | 2002 |
| Pan-Ocean International Group Co., Ltd. | Extraterritorial | 2023 |
| Panache Facilities Management Ltd | Administrative & support | 2023 |
| Panagenics Europe Limited | Wholesale & retail | 2017 |
| Panah Ltd. | Education | 2009 |
| Panakeia Technologies Limited | Information & communication | 2018 |
| Panama Classification Bureau Limited | Transport & logistics | 2023 |
| Panda Digital Media Limited | Manufacturing | 2026 |
| Panda Global Trading Ltd | Transport & logistics | 2025 |
| Panda Original Food Ltd | Hospitality | 2023 |
| Pandeia Therapeutics Limited | Professional & scientific | 2018 |
| Pandemic Prevention Network Ltd | Professional & scientific | 2021 |
| Pandora Social Box Ltd | Administrative & support | 2025 |
| Pangaea Biosciences Ltd | Professional & scientific | 2012 |
| Pangenomix Ltd | Professional & scientific | 2024 |
| Pangolion Limited | Other services | 2019 |
| Panners Limited | Hospitality | 2024 |
| Pannoy Limited | Wholesale & retail | 2011 |
| Pano Ltd | Manufacturing | 2026 |
| Panoptic Survey & Engineering UK Ltd | Construction | 2023 |
| Panorama Insight Ltd | Education | 2024 |
| Pans UP! Ltd | Information & communication | 2025 |
| Panther Taxi Cambridge Ltd | Transport & logistics | 2026 |
| Panther Taxis Limited | Transport & logistics | 1999 |
| Panton Arms Limited | Hospitality | 2018 |
| Papa's Limited | Extraterritorial | 1990 |
| Papaya Consulting Limited | Professional & scientific | 2015 |
| Paper and White Limited | Other services | 2019 |
| Paper Plane Innovations Ltd | Professional & scientific | 2021 |
| Paper Snake Ltd | Information & communication | 2021 |
| Paperboy Holdings Limited | Professional & scientific | 2019 |
| Paperboy Productions Limited | Information & communication | 2019 |
| Paperboy Property Estate Limited | Real estate | 2021 |
| Papworth Commercial Cleaning Services Ltd | Administrative & support | 2022 |
| Papworth Furniture Holdings Limited | Financial services | 2017 |
| Papworth Furniture Limited | Manufacturing | 1996 |
| PAR Excellence Management Ltd | Real estate | 2009 |
| Paradise Court Freehold Ltd | Real estate | 2012 |
| Paradise Cove Limited | Hospitality | 2025 |
| Paragon Property Services Limited | Administrative & support | 2025 |
| Parallax Research, Education and Training Ltd | Education | 2026 |
| Parallexintelligence Ltd | Administrative & support | 2025 |
| Paralog Ltd | Professional & scientific | 2026 |
| Param Medical Consultancy & Properties Limited | Construction | 2012 |
| Parapraxis Ltd | Professional & scientific | 2024 |
| Parentmonitor Ltd | Manufacturing | 2019 |
| Paribus Limited | Information & communication | 1998 |
| Pario Walls Construction Services Limited | Construction | 2019 |
| Parish Support Services Ltd | Professional & scientific | 2026 |
| Park and Ride Catering Ltd | Hospitality | 2023 |
| Park Hall Saddlery Ltd | Manufacturing | 2004 |
| Park House Management Services Limited | Households | 2009 |
| Park Lane Business Centre Management Company Limited | Households | 2005 |
| Park Lane House Management Company Limited | Real estate | 2013 |
| Park Lane Road Management Company Ltd. | Administrative & support | 2002 |
| Park Rangers Ltd | Wholesale & retail | 2023 |
| Park Revolution Leisure Ltd | Construction | 2024 |
| Park Rock Management Company Limited | Households | 2002 |
| Park Topco Limited | Financial services | 2026 |
| Park View House 82-84 High Street Residents Management Company Limited | Households | 2005 |
| Park West RTM Co Limited | Households | 2010 |
| Park Wharf Management Company Limited | Households | 2000 |
| Parker & Milner Limited | Real estate | 1958 |
| Parker Davies Investments Limited | Financial services | 2023 |
| Parker Holdings Ltd | Financial services | 2020 |
| Parker House Management 2 Limited | Real estate | 2025 |
| Parkers Mill Management Limited | Households | 2007 |
| Parkers of Bassingbourn Holdings Limited | Financial services | 2024 |
| Parkers of Bassingbourn Limited | Professional & scientific | 1997 |
| Parkway Management Company Limited | Households | 1972 |
| Parkway Ventures Ltd | Information & communication | 2026 |
| Parlington LLP | | 2023 |
| Parmo Consulting Ltd | Professional & scientific | 2024 |
| Parque Springs Limited | Professional & scientific | 2024 |
| Parque View Limited | Professional & scientific | 2024 |
| Parrish & Heimbecker Foods (UK) Limited | Manufacturing | 2026 |
| Parry and Parry Limited | Professional & scientific | 2013 |
| Pars Pouya Exchange Limited | Financial services | 2018 |
| Parsec International Ltd | Administrative & support | 2024 |