| Padman Court Limited | Hospitality | 2008 |
| Paestra Limited | Information & communication | 2017 |
| Paideia Solutions Ltd | Wholesale & retail | 2022 |
| Paint Splat Studios Limited | Arts & recreation | 2026 |
| Painwise Limited | Health & social care | 2023 |
| Palace Estate Agents Limited | Real estate | 2023 |
| Pale Logistics Solution Limited | Transport & logistics | 2017 |
| Palet Ltd | Professional & scientific | 2020 |
| Palmers Brook Management Limited | Professional & scientific | 1995 |
| Palmranch Limited | Households | 1982 |
| Palomino Construction Ltd | Construction | 2023 |
| Paltec LLP | | 2023 |
| Pam&H Courier Ltd | Hospitality | 2022 |
| Panahpur | Professional & scientific | 2008 |
| Pandit Medical Limited | Health & social care | 2019 |
| Pands UK Property Services Ltd | Real estate | 2021 |
| Pands UK Property Sourcing Limited | Real estate | 2021 |
| Pands UK Relocation Solutions Ltd | Hospitality | 2024 |
| Panimer Ltd | Information & communication | 2017 |
| Panta Consulting Limited | Information & communication | 2014 |
| Paper Tigers Limited | Extraterritorial | 1995 |
| Papi Courier Ltd | Transport & logistics | 2024 |
| Parallel Works Ltd | Professional & scientific | 2026 |
| Parametric Films Ltd | Information & communication | 2025 |
| Parcelfly Ltd | Information & communication | 2015 |
| Paretian Limited | Professional & scientific | 2018 |
| Park Capital Research Limited | Professional & scientific | 2017 |
| Park Construction Ltd | Construction | 2006 |
| Park Home Group Ltd | Hospitality | 2021 |
| Parkes Property Services Ltd | Construction | 2017 |
| Parkhouse Surgical Limited | Health & social care | 2009 |
| Parkside Associates Limited | Education | 2021 |
| Parktech Car Park Management Ltd | Real estate | 2024 |
| Parnik Limited | Real estate | 2025 |
| Particular Productions Ltd | Information & communication | 2023 |
| Partnership Invoice Finance Limited | Financial services | 2002 |
| PAS Consulting Services Ltd | Professional & scientific | 2024 |
| Patricia Napier Ltd | Health & social care | 2018 |
| Patrick Watts Limited | Wholesale & retail | 2015 |
| Patroslil Limited | Professional & scientific | 2017 |
| Pattenden Veterinary Clinic Limited | Professional & scientific | 2017 |
| Pattenmakers Events Limited | Other services | 2001 |
| PAU Creative Limited | Professional & scientific | 2007 |
| Paul Ashby Developments Limited | Construction | 2002 |
| Paul Ciclitira Ltd | Health & social care | 2011 |
| Paul Sanders Photography Limited | Professional & scientific | 2003 |
| Paula John Communications Ltd | Professional & scientific | 2021 |
| Pause in Nature CIC | Health & social care | 2026 |
| Pavilions Croydon Management Limited | Households | 2003 |
| Pavocat Chambers Ltd | Professional & scientific | 2020 |
| Paws Cat Cafe Limited | Hospitality | 2018 |
| Payne & SON (Silversmiths) Limited | Wholesale & retail | 1937 |
| Payne & SON Limited | Extraterritorial | 2000 |
| Pańuelos Libres CIC | Education | 2025 |
| PBA Electrical & Renewables Ltd | Construction | 2019 |
| PBA Investment Group Limited | Financial services | 2025 |
| PBA Property Investment Limited | Real estate | 2025 |
| Pdfd Ltd | Information & communication | 2025 |
| PDR Management Limited | Real estate | 2003 |
| Peach Project Consultants Limited | Information & communication | 2015 |
| Peach Toucan Ltd. | Information & communication | 2019 |
| Peak Concepts Limited | Real estate | 2015 |
| Pear Tree Properties Management Limited | Households | 2020 |
| Pearce Project Solutions Limited | Construction | 2014 |
| Pebble Hill Ltd | Administrative & support | 2020 |
| Pecanstream Properties Limited | Real estate | 2021 |
| Peerless Lyons Ltd | Hospitality | 2024 |
| Pelagic Aquatics LLP | | 2008 |
| Peliforde Place Limited | Households | 2025 |
| Pellicola Productions Limited | Information & communication | 2007 |
| Pembury IT Services Limited | Information & communication | 2012 |
| Penelope's Pitstop Ltd | Wholesale & retail | 2018 |
| Penhurst Business Centres Limited | Real estate | 2016 |
| Penica Property Limited | Construction | 2025 |
| Peniel First Ltd | Health & social care | 2023 |
| Peninsula Medicare Limited | Health & social care | 2019 |
| Penn & Compass Travel Ltd | Administrative & support | 2026 |
| Penn Sports Therapy Ltd | Health & social care | 2020 |
| Pennserv Limited | Administrative & support | 2024 |
| Penshurst Renovations Ltd | Construction | 2024 |
| Pentahedron Ltd | Information & communication | 2016 |
| Penthouse Boutique Limited | Wholesale & retail | 2025 |
| Penton Communication Limited | Construction | 2023 |
| Penton Design Limited | Construction | 2023 |
| Penton Electrical Limited | Construction | 2014 |
| Penton Fire & Security Limited | Public administration | 2019 |
| Penton Mechanical Limited | Construction | 2023 |
| Penton Renewables Ltd | Construction | 2023 |
| Penton Services Group Limited | Construction | 2020 |
| People & Place Architects Ltd | Professional & scientific | 2016 |
| People in Focus Limited | Professional & scientific | 1988 |
| People International Limited | Other services | 1979 |
| People International Projects Limited | Professional & scientific | 1996 |
| People International Worldwide | Health & social care | 1993 |
| Pepsway Chauffeurs Limited | Transport & logistics | 2019 |
| Perfect Fit Recruitment Limited | Administrative & support | 2025 |
| Perfect Platters (Kent) Limited | Hospitality | 2012 |
| Performance Hub Limited | Professional & scientific | 2014 |
| Period Property Group Ltd | Construction | 2008 |
| Perna Oncology Ltd | Health & social care | 2022 |