| Pilli Traders Limited | Manufacturing | 2025 |
| PILLS2U Ltd | Wholesale & retail | 2024 |
| Pilot Finance Ltd | Real estate | 2024 |
| Piltom Ltd | Construction | 2020 |
| PIN Cross Limited | Transport & logistics | 2014 |
| PIN Marketing Management Ltd | Professional & scientific | 2014 |
| Pin&Go Ltd | Real estate | 2020 |
| Pinakini Tech Solutions Ltd | Information & communication | 2020 |
| Pinarus Limited | Construction | 2001 |
| Pindi Spark Ltd | Other services | 2021 |
| Pineappleanddiamond Ltd | Health & social care | 2023 |
| Pineappleanddiamond Properties Limited | Real estate | 2026 |
| Pingmee Ltd | Information & communication | 2025 |
| Pink Chillies Ltd | Hospitality | 2023 |
| Pink Milk Theatre Ltd | Arts & recreation | 2024 |
| Pink Pearl Ltd | Administrative & support | 2026 |
| Pink Peonies Ltd | Real estate | 2025 |
| Pink Spokes Ltd | Wholesale & retail | 2025 |
| Pink Star Group Ltd | Arts & recreation | 2025 |
| Pinkform Ltd | Wholesale & retail | 2023 |
| Pinnacle Capital Holdings Ltd | Information & communication | 2022 |
| Pinnacle Composites Limited | Professional & scientific | 2013 |
| Pinnacle Consulting Solutions Ltd | Information & communication | 2013 |
| Pinnacle Finance Executives Limited | Professional & scientific | 2024 |
| Pinnacle Freelance Limited | Professional & scientific | 2005 |
| Pinnacle FS Ltd | Professional & scientific | 2011 |
| Pinnacle Funways Ltd | Administrative & support | 2023 |
| Pinnacle GAS & Heating Services Ltd | Construction | 2022 |
| Pinnacle Group of Companies Ltd | Real estate | 2020 |
| Pinnacle Hotels Limited | Financial services | 2025 |
| Pinnacle Insight Consulting Ltd | Information & communication | 2024 |
| Pinnacle IT Consultancy Limited | Information & communication | 2015 |
| Pinnacle Prism Advisors Limited | Professional & scientific | 2023 |
| Pinnacle Properties (London) Ltd | Real estate | 2021 |
| Pinnacle Properties (U.K) Ltd | Real estate | 2022 |
| Pinnacle Workplace Solutions Ltd | Wholesale & retail | 2012 |
| Pino Pece Limited | Construction | 2013 |
| Pinpatel Consulting Ltd | Administrative & support | 2025 |
| Pinter Ltd | Wholesale & retail | 2021 |
| Pioneer Accountants Ltd | Professional & scientific | 2013 |
| Pioneer Business Solutions Ltd | Information & communication | 2012 |
| Pioneer Construct Ltd | Construction | 2024 |
| Pioneer Education Centre Ltd | Education | 2024 |
| Pioneer Kitchens Ltd | Wholesale & retail | 2026 |
| Pioneer Property London Ltd | Real estate | 2025 |
| Pioneer Recruitment Limited | Administrative & support | 2024 |
| Pioneer Tech UK Ltd | Wholesale & retail | 2011 |
| Pioneerx Ecommerce Ltd | Wholesale & retail | 2025 |
| Piper Accountants Ltd | Professional & scientific | 2022 |
| Piper Flooring Ltd | Other services | 2004 |
| Piper Hales Flooring Group Limited | Construction | 2016 |
| Pipers Farm Management Company Limited | Households | 2022 |
| Piran Trading Limited | Construction | 2021 |
| Pirates Caribbean Kitchen Ltd | Hospitality | 2023 |
| Piri Piri (Ilford) Limited | Hospitality | 2017 |
| Piro Ltd | Information & communication | 2025 |
| Pirp UK Limited | Wholesale & retail | 2026 |
| Pirvu Transspeed Ltd | Transport & logistics | 2018 |
| Pista House Team Limited | Hospitality | 2020 |
| Pisteuo Enterprise Ltd | Health & social care | 2023 |
| Piston Tribe Ltd | Wholesale & retail | 2026 |
| PIT Stop Carwash Ilford Limited | Other services | 2017 |
| PIT Stop Hainault Ltd | Wholesale & retail | 2019 |
| Pitfield Enterprise Ltd | Wholesale & retail | 2021 |
| Pitman Education Limited | Wholesale & retail | 2025 |
| Pitsea Developments Limited | Construction | 2016 |
| Pitt Electrics Limited | Construction | 2014 |
| Pivot Home Care Limited | Public administration | 2023 |
| Pivotal Insights Solution Ltd | Professional & scientific | 2024 |
| Pivotal Solutions 360 Ltd | Information & communication | 2019 |
| Pixel Direct Ltd | Wholesale & retail | 2015 |
| Pixel Premium Ltd | Wholesale & retail | 2016 |
| Pixelodeon Interactive Ltd. | Information & communication | 2012 |
| Pixelpulse Marketing Ltd | Professional & scientific | 2025 |
| Pixels Properties Ltd | Real estate | 2024 |
| Pixi Vision Limited | Health & social care | 2022 |
| Pizza Express and Foodies Ltd | Hospitality | 2025 |
| Pizza Hot & Fried Chicken Ltd | Hospitality | 2024 |
| Pizza Italian Ltd | Hospitality | 2024 |
| Pizza King Grill Ltd | Hospitality | 2013 |
| Pizza Lancing Ltd | Hospitality | 2025 |
| Pizza Shop Forest Gate Ltd | Hospitality | 2019 |
| Pizza Town (Hadleigh) Ltd | Hospitality | 2014 |
| Pizzioto Ltd | Hospitality | 2020 |
| PJ AFI Maintenance Limited | Construction | 2023 |
| Pjesco Project Management Services Ltd | Professional & scientific | 2025 |
| PJH Heating & Plumbing Ltd | Construction | 2017 |
| PJK Consultancy Services Limited | Administrative & support | 2026 |
| PJM Listings Ltd | Real estate | 2025 |
| Pjrs Communications Limited | Construction | 2015 |
| PK Constructions Ltd | Construction | 2015 |
| PK Global Trade Limited | Construction | 2024 |
| PK Joinery Designs Limited | Other services | 2012 |
| PK Kataria Ltd | Real estate | 2024 |
| PK Pharmacare Ltd | Administrative & support | 2008 |
| PKG Multe Limited | Wholesale & retail | 2014 |
| PKK Properties Ltd | Real estate | 2023 |
| PKK Services Ltd | Construction | 2025 |
| PKM Estates Limited | Real estate | 2022 |
| PKP Solutions Ltd | Information & communication | 2025 |