| Patrick MIH Lubega Limited | Professional & scientific | 2019 |
| Patron Roofing Ltd | Construction | 2024 |
| Patte Ltd | Information & communication | 2025 |
| Paul General Building Limited | Construction | 2011 |
| Paul Mulcair (UK) Ltd | Construction | 2015 |
| Paul Wayne Gregory Limited | Manufacturing | 2003 |
| Paul's Decorators London Ltd | Construction | 2021 |
| Paul.Oconstruction Limited | Other services | 2014 |
| Pavestone Properties Ltd | Other services | 2024 |
| Pawelek Coffee Shop & Ice Cream Ltd | Hospitality | 2023 |
| Pawelek Polish Food Limited | Wholesale & retail | 2016 |
| Pawelek Polish School CIC | Education | 2026 |
| PCM LUX Travel Ltd | Other services | 2021 |
| Peach Logistics Limited | Transport & logistics | 2024 |
| Peach Property Group Ltd | Financial services | 2025 |
| Peach Property Partners DP Ltd | Real estate | 2025 |
| Peach Property Trading Ltd | Real estate | 2025 |
| Peach Property Ventures Ltd | Real estate | 2024 |
| Peachi Ltd | Manufacturing | 2025 |
| Peak Vista Limited | Real estate | 2024 |
| Pearl Business Assist Limited | Professional & scientific | 2014 |
| Pearl Clean Ltd | Other services | 2012 |
| Pearl Harbour Assets Ltd | Real estate | 2021 |
| Pearl-Pina Limited | Health & social care | 2021 |
| Pebble Way Limited | Real estate | 2021 |
| Pedicab Travel Limited | Administrative & support | 2025 |
| Peegee Services Ltd | Education | 2018 |
| Pegasus Investment Links (UK) Limited | Health & social care | 2015 |
| Peinto Ltd | Real estate | 2025 |
| Pekos London Limited | Hospitality | 2025 |
| Pellora Ltd | Manufacturing | 2024 |
| Pempamsie Ltd | Wholesale & retail | 2017 |
| Pennant Imperium Restaurant Limited | Hospitality | 2023 |
| Pentlands 1 Limited | Real estate | 2023 |
| Peppers & Spice Restaurant Limited | Hospitality | 1993 |
| Perfect Contact Ltd | Administrative & support | 2008 |
| Perfecto Property Services Ltd | Construction | 2026 |
| Peri Peri Chicken Bites Ltd | Hospitality | 2025 |
| Peri Peri Paradise Ltd | Hospitality | 2025 |
| Peridot Consultancy Services Ltd | Professional & scientific | 2025 |
| Perkins Property Solutions Limited | Real estate | 2007 |
| Persona Staffing Ltd | Administrative & support | 2024 |
| Pesar Ltd | Manufacturing | 2026 |
| Petite Childcare Ltd | Health & social care | 2020 |
| Petkoff Building Service Ltd | Construction | 2019 |
| Petvibe Limited | Wholesale & retail | 2026 |
| Pgabrickwork Ltd | Construction | 2026 |
| Phantom Properties Services Limited | Real estate | 2025 |
| Phantom Trade Ltd | Wholesale & retail | 2020 |
| PHASE29 Ltd | Wholesale & retail | 2022 |
| Phased UP Ltd | Construction | 2026 |
| Pheing Construction UK Ltd | Construction | 2025 |
| Phil-Good Services Limited | Construction | 2024 |
| Phoenix GRP Investments Limited | Hospitality | 2009 |
| Phoenix Water Filters Ltd | Wholesale & retail | 2022 |
| Phone Surgery Beaconsfield Ltd | Manufacturing | 2025 |
| Phone Surgery Knightsbridge Ltd | Wholesale & retail | 2024 |
| Phonesworld Ltd | Wholesale & retail | 2020 |
| Piazza Bottega Ltd | Hospitality | 2026 |
| Pick Cart UK Ltd | Wholesale & retail | 2025 |
| Pick N Post Limited | Wholesale & retail | 2012 |
| Pico Builders Ltd | Construction | 2024 |
| Pika Limited | Health & social care | 2013 |
| Pilaster Limited | Real estate | 2020 |
| Pillayar Properties Limited | Real estate | 2023 |
| Pilots 365 Ltd | Information & communication | 2025 |
| Pinal Ltd | Health & social care | 2024 |
| Pinecone Maintenance Services Ltd | Administrative & support | 2026 |
| Pinecroft Accountants Limited | Professional & scientific | 2021 |
| Pinewoodlondonconstruction Limited | Construction | 2014 |
| Pink Aesthetics Ltd | Other services | 2026 |
| Pinnacle Plant Hire Ltd | Administrative & support | 2024 |
| Pinnacle Power Solutions Limited | Construction | 2023 |
| Pinnacle Printers Ltd | Manufacturing | 2024 |
| Pixel Hub Media Ltd | Wholesale & retail | 2025 |
| Pizza Events Limited | Hospitality | 2025 |
| Pizza Kingdom Aldershot Limited | Hospitality | 2024 |
| Pizza Project Walton Limited | Hospitality | 2020 |
| PJ United Ltd | Hospitality | 2024 |
| PJM Motos Ltd | Wholesale & retail | 2023 |
| PKN Real Estate Ltd | Real estate | 2025 |
| PL8D Ltd | Wholesale & retail | 2025 |
| Plan B Group Ltd | Construction | 2020 |
| Plan Build Extend Limited | Construction | 2023 |
| Planet Lift Ltd | Other services | 2016 |
| Plank & Parcel Ltd | Professional & scientific | 2024 |
| Platform Diagnostics Limited | Professional & scientific | 2002 |
| Plowden & Smith Limited | Arts & recreation | 1966 |
| Plumtree Ltd | Education | 2025 |
| Plus Value Superstore Limited | Wholesale & retail | 2024 |
| Plyoak Ltd | Hospitality | 2025 |
| PMF Facades Ltd | Construction | 2019 |
| PMG Fitness Limited | Other services | 2018 |
| PML Civils Ltd | Real estate | 2020 |
| PMM Assets Limited | Real estate | 2023 |
| Poetic Impact Ltd | Arts & recreation | 2020 |
| POINT2RENT Ltd | Administrative & support | 2025 |
| Pola Trans Ltd | Transport & logistics | 2015 |
| Polarwave Refrigeration Services Ltd | Manufacturing | 2025 |
| Polish Family Association C.I.C. | Administrative & support | 2024 |