| Ponders END Community Development Trust | Other services | 2002 |
| Ponders END Express Ltd | Wholesale & retail | 2018 |
| Ponders END Islamic Centre Ltd | Education | 2024 |
| Ponders END LQ Ltd | Arts & recreation | 2023 |
| Pondersend Hair Studio Ltd | Other services | 2018 |
| POP in Curry Ltd | Hospitality | 2025 |
| POP N' Play Collectibles Ltd | Wholesale & retail | 2026 |
| Popfresh Limited | Information & communication | 2011 |
| Porcelain Centre Ltd | Wholesale & retail | 2022 |
| Porsam Crystal Properties Ltd | Households | 2024 |
| Porsche Specialist Services Ltd | Wholesale & retail | 2018 |
| Port Maria Enterprises Limited | Wholesale & retail | 2023 |
| Portfolio Growth Limited | Real estate | 2020 |
| Portfolio Property Services UK Limited | Real estate | 2006 |
| Portia's Daycare Limited | Health & social care | 2022 |
| Portland Polybag Supplies Limited | Extraterritorial | 1983 |
| Portugal Holiday Lettings Ltd | Hospitality | 2020 |
| Poscraft Limited | Information & communication | 2020 |
| Poshtrina Care Limited | Health & social care | 2022 |
| POT8O Ltd | Hospitality | 2024 |
| Potency.World CIC | Education | 2022 |
| Potentia Horizon Investments Ltd | Real estate | 2023 |
| Poultrix Global Limited | Wholesale & retail | 2025 |
| Power Barrs Ltd | Wholesale & retail | 2024 |
| Power Stone Trading Ltd | Wholesale & retail | 2026 |
| Powerad Holdings Ltd | Financial services | 2025 |
| Powerad Ltd | Wholesale & retail | 2025 |
| Powerdata Limited | Information & communication | 2014 |
| Powersolve (UK) Limited | Administrative & support | 1994 |
| Poynter Road Limited | Real estate | 2019 |
| Pozi Ltd | Information & communication | 2025 |
| Pozi Ltd Ltd | Information & communication | 2026 |
| PP Consilium LP | | 2015 |
| PP Machinery Company Ltd | Administrative & support | 2025 |
| PPC Facilities Limited | Manufacturing | 2014 |
| Ppinvestco Limited | Administrative & support | 2009 |
| Praci Ltd | Professional & scientific | 2024 |
| Praeclara Limited | Hospitality | 2022 |
| Praisy Praisy Limited | Arts & recreation | 2014 |
| Prcedits Ltd | Information & communication | 2015 |
| Precious - J3 Limited | Hospitality | 2020 |
| Precious Diamonds Limited | Wholesale & retail | 2013 |
| Precious Moments and Health Limited | Health & social care | 2012 |
| Precious Moments Properties Limited | Real estate | 2025 |
| Precious Teeth Ltd | Administrative & support | 2022 |
| Precise Care Services Limited | Health & social care | 2025 |
| Precision Auto Detailing Ltd | Administrative & support | 2026 |
| Precision Engineering Plastics (Holdings) Limited | Financial services | 2005 |
| Precision Engineering Plastics Ltd | Manufacturing | 1986 |
| Precision Pane Limited | Construction | 2025 |
| Prefix Solutions Ltd | Wholesale & retail | 2010 |
| Premad Holdings Limited | Real estate | 2025 |
| Premier Cafe (Enfield) Ltd | Hospitality | 2019 |
| Premier East Limited | Hospitality | 2014 |
| Premier Fleet Compliance Ltd | Transport & logistics | 2026 |
| Premier Football Ltd | Other services | 2016 |
| Premier Point Partnership Ltd | Professional & scientific | 2025 |
| Premier Promotions & Management Limited | Arts & recreation | 2025 |
| Premier Sustain Limited | Extraterritorial | 2008 |
| Premier Systems IT Limited | Extraterritorial | 2000 |
| Premier Transport Compliance Ltd | Transport & logistics | 2018 |
| Premiere Associates Limited | Other services | 2022 |
| Premiere Place Freeholds Limited | Households | 2000 |
| Premiere Place Property Management Company Limited | Households | 1996 |
| Premierten Ltd | Health & social care | 2019 |
| Premio Collective Ltd | Wholesale & retail | 2026 |
| Premium Construction & Decoration Ltd | Construction | 2023 |
| Premium Lofts Ltd | Construction | 2021 |
| Premium Plus Travel Ltd | Transport & logistics | 2024 |
| Present Picker Limited | Information & communication | 2022 |
| Preslav Ltd | Construction | 2008 |
| Prestige Business Advice Ltd | Professional & scientific | 2014 |
| Prestige Carpet Ltd | Wholesale & retail | 2018 |
| Prestige Domestic Property Maintenance Ltd | Construction | 2017 |
| Prestige Electrics (UK) Limited | Construction | 2014 |
| Prestige Feza Ltd | Wholesale & retail | 2023 |
| Prestige London Commerce Limited | Wholesale & retail | 2024 |
| Prestige Q Care Services Ltd | Health & social care | 2016 |
| Prestige Residentials Properties Ltd | Real estate | 2020 |
| Prestige Vehicle Transport Ltd | Administrative & support | 2011 |
| Prestige Wash Ltd | Administrative & support | 2022 |
| Prestigex Ltd | Extraterritorial | 2024 |
| Prestigious Events Management and Catering Service Limited | Hospitality | 2024 |
| Pretty Nails HL Ltd | Other services | 2019 |
| Pretty Nails Limited | Other services | 2019 |
| Prettypottz Limited | Health & social care | 2025 |
| Prici's Extra Services Limited | Health & social care | 2021 |
| Prifti Electrical Limited | Construction | 2025 |
| Primal Health Sports Academy LLP | | 2016 |
| Primal Health Tennis Academy Ltd | Education | 2015 |
| Primavera Domiciliary Care Services Limited | Health & social care | 2017 |
| Prime Accountancy Services Ltd | Professional & scientific | 2017 |
| Prime ARK Logistics Ltd | Transport & logistics | 2025 |
| Prime Choice Store Ltd | Wholesale & retail | 2024 |
| Prime Consultants Ltd | Professional & scientific | 2019 |
| Prime Edge Bathrooms & Kitchens Ltd | Construction | 2026 |
| Prime Enforcement Ltd | Administrative & support | 2023 |
| Prime ET Limited | Wholesale & retail | 2024 |
| Prime Master Meat Ltd | Wholesale & retail | 2018 |
| Prime Peak Properties Ltd | Real estate | 2025 |