| Poshtv Ltd | Professional & scientific | 2024 |
| Positive Operational Building Services Ltd | Professional & scientific | 2018 |
| Positive-Ness Limited | Transport & logistics | 2025 |
| Postage Limited | Construction | 2011 |
| Poswal Ventures Limited | Real estate | 2013 |
| Potentia Motus Ltd | Real estate | 2021 |
| Poulet Marakash Limited | Wholesale & retail | 2025 |
| Pound Plus Discount Limited | Wholesale & retail | 2017 |
| Povike Ltd | Real estate | 2021 |
| Power Couple Ltd | Real estate | 2026 |
| Power Drainage & Plumbing Services Ltd | Construction | 2013 |
| Power Forecaster Limited | Energy | 2022 |
| Power in Unity CIC | Arts & recreation | 2024 |
| Power London Electrical Ltd | Construction | 2020 |
| Power Orthodontics Ltd | Health & social care | 2014 |
| Power Property Services Limited | Construction | 1986 |
| Power Shift Auto Ltd | Wholesale & retail | 2026 |
| Power Tech Automotives Ltd | Wholesale & retail | 2018 |
| Powerbiz Ltd | Administrative & support | 2025 |
| Powerhorse Limited | Health & social care | 2023 |
| Powerlux Property Maintenance Ltd | Construction | 2025 |
| Powershell Security Ltd | Other services | 2024 |
| Powrr Limited | Wholesale & retail | 2016 |
| Poya Ltd | Construction | 2017 |
| PPC Building Services Ltd | Construction | 2021 |
| PPT Services Ltd | Construction | 2026 |
| PR Dragomir Ltd | Construction | 2019 |
| PR Group London Limited | Construction | 2018 |
| PR Homes London Limited | Real estate | 2025 |
| PR Interiors London Ltd | Construction | 2025 |
| PR Logistics Limited | Transport & logistics | 2020 |
| PR Sports Limited | Manufacturing | 2022 |
| Practical Concepts Limited | Construction | 2005 |
| Practice Based Clinical Services Limited | Health & social care | 2008 |
| Pragnostic Ltd | Information & communication | 2024 |
| Pralek Partners Ltd | Wholesale & retail | 2026 |
| Pramukh Estates Ltd | Real estate | 2023 |
| Prana Latitude Ltd | Professional & scientific | 2024 |
| Praporrom WJ Ltd | Manufacturing | 2024 |
| Prasan Properties Limited | Real estate | 2017 |
| Prateek Bhatia Ltd | Construction | 2019 |
| Prax Beauty Ltd | Wholesale & retail | 2025 |
| Praxo Group Ltd | Information & communication | 2025 |
| Pre-Tech Grading Ltd | Wholesale & retail | 2025 |
| PRE5TO Holdings Limited | Real estate | 2023 |
| Precious Thoughts Cards & Gifts Limited | Wholesale & retail | 2016 |
| Precis (1933) Limited | Water & waste | 1972 |
| Precise Datacare Ltd | Professional & scientific | 2005 |
| Precision Digital Publisher Ltd | Information & communication | 2024 |
| Precision Gleam Limited | Administrative & support | 2025 |
| Precision Global Solutions Ltd | Professional & scientific | 2024 |
| Precision Mortgage Services Ltd | Financial services | 2017 |
| Precision Sealant Services Limited | Construction | 2004 |
| Precision Surveying Consultancy Ltd | Professional & scientific | 2022 |
| Predator (UK) Limited | Extraterritorial | 2005 |
| Predial Ltd | Wholesale & retail | 2019 |
| Preesha Software Services Ltd | Information & communication | 2010 |
| Preet Heating & Plumbing Ltd | Construction | 2024 |
| Premier 365 Holdings Limited | Hospitality | 2020 |
| Premier Accountants (UK) Ltd | Professional & scientific | 2010 |
| Premier Auto Group Ltd | Wholesale & retail | 2025 |
| Premier Car & Commercial Ltd | Wholesale & retail | 2024 |
| Premier City Invest Ltd | Real estate | 2018 |
| Premier Coffee Limited | Extraterritorial | 2011 |
| Premier Contracting Services Limited | Construction | 2019 |
| Premier First Irrigation Ltd | Administrative & support | 2026 |
| Premier First Properties Limited | Real estate | 2022 |
| Premier First Solutions Ltd | Administrative & support | 2019 |
| Premier Floor Limited | Construction | 2024 |
| Premier Haulage Ltd | Transport & logistics | 2021 |
| Premier Machinery Limited | Extraterritorial | 2022 |
| Premier Maintenance Services Limited | Water & waste | 2023 |
| Premier Marketing London Limited | Hospitality | 2019 |
| Premier Property Moves Ltd | Real estate | 2020 |
| Premier Rental Limited | Administrative & support | 2019 |
| Premier Serv Ltd | Construction | 2026 |
| Premier Skip & Waste Management Ltd | Water & waste | 2019 |
| Premier Streams Ltd. | Wholesale & retail | 2018 |
| Premier Tyre Services (UK) Limited | Water & waste | 2014 |
| Premiere Coffee Limited | Hospitality | 2004 |
| Premiers Inn Limited | Hospitality | 2020 |
| Premium Care Consult Ltd | Wholesale & retail | 2015 |
| Premium Medics Limited | Health & social care | 2015 |
| Premium Plates LDN Ltd | Manufacturing | 2023 |
| Premium Vapor Store Ltd | Wholesale & retail | 2016 |
| Premiumsmp Ltd | Other services | 2025 |
| Present Model Management Ltd | Professional & scientific | 2016 |
| Prestige Autos LDN Ltd | Wholesale & retail | 2025 |
| Prestige Care Management System Ltd | Information & communication | 2020 |
| Prestige Constructions London Ltd | Construction | 2021 |
| Prestige Conveyancing Ltd | Professional & scientific | 2025 |
| Prestige Fit OUT Limited | Construction | 2016 |
| Prestige Flooring Contracts Ltd | Construction | 2021 |
| Prestige Flooring Essex Ltd | Construction | 2018 |
| Prestige Home & Extensions Ltd | Construction | 2026 |
| Prestige Podiatry Ltd | Health & social care | 2020 |
| Prestige Prizes Ltd | Information & communication | 2026 |
| Prestige Tyres London Limited | Wholesale & retail | 2025 |
| Pretorius Bio-Industries Limited | Professional & scientific | 2009 |
| Pretorius Global Ltd | Transport & logistics | 2013 |