| Premier Materials Ltd | Construction | 2026 |
| Premier SAQ Training Ltd | Arts & recreation | 2019 |
| Premier Shipping & Packing (London) Limited | Administrative & support | 2003 |
| Premier Soil Solutions Limited | Construction | 2021 |
| Presley Property Investments Ltd | Real estate | 2021 |
| Prestige Umbrella Ltd | Administrative & support | 2015 |
| PRH Property Management Services Ltd | Real estate | 2021 |
| PRH Quality Living Ltd | Hospitality | 2022 |
| Priceless Management Ltd | Professional & scientific | 2012 |
| Priceless Properties Ltd | Extraterritorial | 2001 |
| Pride Builders Ltd | Construction | 2023 |
| Pride Hub CIC | Other services | 2024 |
| Prime Development & Design Ltd | Real estate | 2017 |
| Prime Interiors Design Limited | Administrative & support | 1998 |
| Prime Scope Limited | Other services | 2024 |
| Primehearth Property Ltd | Real estate | 2026 |
| Primekey Stays Ltd | Real estate | 2026 |
| Primespace Office Furniture Ltd | Information & communication | 2018 |
| Priomento Real Estate UK Ltd | Real estate | 2025 |
| Pro Nobis Invest Ltd | Real estate | 2020 |
| Pro-Quest Resourcing Ltd | Administrative & support | 2001 |
| Proav Holdings Limited | Professional & scientific | 2014 |
| Proav International Limited | Professional & scientific | 2009 |
| Proav Limited | Professional & scientific | 1992 |
| Proav.Com Limited | Extraterritorial | 2009 |
| Processmaker Limited | Information & communication | 2014 |
| Profinish Mobile Body Repair Ltd | Wholesale & retail | 2023 |
| Profit Investment & Holding Limited | Financial services | 2016 |
| Profitpoint Ltd | Professional & scientific | 2024 |
| Profm Limited | Extraterritorial | 2011 |
| Project Green Factory Ltd | Professional & scientific | 2022 |
| Project Rehab Ltd | Health & social care | 2025 |
| Prolixus Ltd | Professional & scientific | 2024 |
| Prologic Design Limited | Information & communication | 2000 |
| Promotion of Good Sense Ltd | Professional & scientific | 2022 |
| Proninety Limited | Administrative & support | 2020 |
| Properties by MJ Ltd | Real estate | 2019 |
| Properties by Oak Ltd | Real estate | 2023 |
| PROPERTIES2LOVE Ltd | Real estate | 2021 |
| Propertunity Rentals Ltd | Real estate | 2021 |
| Property ASN Ltd | Real estate | 2024 |
| Property by Nina Ltd | Real estate | 2026 |
| Property Effect Limited | Professional & scientific | 2018 |
| Property Kidd Ltd | Real estate | 2017 |
| Property MT Ltd | Real estate | 2022 |
| Property Orange Investments Ltd | Real estate | 2022 |
| Property Orange Trading Ltd | Real estate | 2022 |
| Propertymarct Ltd | Real estate | 2024 |
| Propertypacks Ltd | Information & communication | 2025 |
| Prospector Advisory Limited | Professional & scientific | 2024 |
| Prosperus Property Invest Ltd | Real estate | 2020 |
| Prospervs Ltd | Professional & scientific | 2021 |
| Proteus Partnership Limited | Administrative & support | 2011 |
| Provc Limited | Extraterritorial | 2012 |
| Providence Business Solutions LLP | | 2011 |
| Providence Financial Limited | Professional & scientific | 2005 |
| Providence Financial Property Group Ltd | Financial services | 2022 |
| Providence Pro Managed Developments Ltd | Real estate | 2022 |
| Providence Property Club Ltd | Extraterritorial | 2022 |
| Providence Property Solutions Ltd | Real estate | 2011 |
| Provo Consulting Ltd | Professional & scientific | 2025 |
| Proxy Care Personnel Limited | Health & social care | 2016 |
| PSM HR Outsourcing Ltd | Administrative & support | 2010 |
| PSP Co. Holdings Limited | Financial services | 2022 |
| PSP Group Investments Ltd | Extraterritorial | 2021 |
| Pubmed Ltd | Professional & scientific | 2022 |
| Pugachev Luxury Rental Ltd | Administrative & support | 2023 |
| Pullo Trust | Health & social care | 2019 |
| Puppy Yoga Yorkshire Ltd | Other services | 2023 |
| Pure Outsourcing Limited | Administrative & support | 2021 |
| Purerify Private Limited | Wholesale & retail | 2025 |
| Purevital Ltd | Professional & scientific | 2025 |
| Purple Drinks Limited | Wholesale & retail | 2022 |
| Purrfect Deals Ltd | Other services | 2023 |
| PWA Engineering Ltd | Manufacturing | 2011 |
| Pyson Management Services Limited | Professional & scientific | 2022 |
| Pyuk Limited | Other services | 2023 |
| Qashqai Detailing Ltd | Wholesale & retail | 2026 |
| Qfort UK Ltd | Construction | 2022 |
| Qibono Ltd | Other services | 2020 |
| QIO Technologies Ltd | Information & communication | 2014 |
| Qnhomes Properties Ltd. | Real estate | 2021 |
| Qoka Ltd | Administrative & support | 2023 |
| QPO Real Estate Ltd | Real estate | 2021 |
| QSC UK & Ireland Limited | Information & communication | 2017 |
| Qualityware Limited | Wholesale & retail | 2024 |
| Quantum Clear Limited | Other services | 2024 |
| Quantum Dynamic Marketing Ltd | Professional & scientific | 2025 |
| Quantum Media 360 Ltd | Professional & scientific | 2024 |
| Quantum Source Limited | Other services | 2024 |
| Quickfix Profiles Group Ltd | Construction | 2026 |
| Quickfix Profiles Ltd | Construction | 2019 |
| Quiet Street Ltd | Real estate | 2025 |
| Quindeya Ltd | Hospitality | 2023 |
| Quintec Consultants UK Ltd | Financial services | 2021 |
| R J Walker Holdings Limited | Financial services | 2019 |
| R Kare Ltd | Wholesale & retail | 2018 |
| R N Buy to LET Investment Limited | Real estate | 2023 |
| R&I Security Services Ltd | Administrative & support | 2023 |
| R&R Harris Property Holdings Limited | Real estate | 2025 |