| Paradice Desserts London Limited | Manufacturing | 2024 |
| Paramount Intl UK Ltd | Wholesale & retail | 2024 |
| Parban LLP | | 2024 |
| Parcel Juice Ltd | Professional & scientific | 2012 |
| Park Shahri NAW Restaurant Ltd | Hospitality | 2025 |
| Parker Cars Holdings Limited | Financial services | 2014 |
| Parker Cars Limited | Transport & logistics | 2004 |
| Parklands Property Group Ltd | Real estate | 2022 |
| Parkpro Parking Ltd | Hospitality | 2025 |
| Partex Limited | Hospitality | 2025 |
| Pasarela Limited | Transport & logistics | 2019 |
| Pass Prosperity Limited | Real estate | 2022 |
| Paternoster Square Solutions Ltd | Information & communication | 2016 |
| Patton Electrical London Ltd | Construction | 2020 |
| Paul Martin Physiotherapy Limited | Health & social care | 2014 |
| Pauls Magic Art Ltd | Construction | 2023 |
| Pauwels UK Limited | Wholesale & retail | 2003 |
| PAV Serv Ltd | Construction | 2025 |
| Pav's Site Support Ltd. | Wholesale & retail | 2018 |
| Pavel POP Ltd | Construction | 2014 |
| PAY 1 Limited | Construction | 2019 |
| Payperm Limited | Information & communication | 2005 |
| PB Professional Building Services Interior & Exterior Ltd | Construction | 2019 |
| PB Roofing Specialist Ltd | Construction | 2020 |
| PB Tera Tera Limited | Real estate | 2025 |
| PB07 Construction Ltd | Administrative & support | 2017 |
| PB13 Properties Limited | Real estate | 2024 |
| PBS Building & Property Services Limited | Construction | 2010 |
| PDP Courier Services Limited | Transport & logistics | 1997 |
| Peace Patent CIC | Information & communication | 2024 |
| Peaceful Mind Coaching Limited | Other services | 2024 |
| Peach Orchard Ltd | Wholesale & retail | 2015 |
| Peaches and Clean Feltham Ltd | Administrative & support | 2018 |
| Peak Property Media Ltd | Professional & scientific | 2023 |
| Peakhour Limited | Administrative & support | 2008 |
| Peakhour Properties Limited | Real estate | 2019 |
| Pearl Grain Limited | Wholesale & retail | 2022 |
| Peculium Property Holdings Ltd | Real estate | 2017 |
| Peev Single PLY Roofing Ltd | Construction | 2021 |
| Peklynn Consult Ltd | Construction | 2017 |
| Peklynn Services Ltd | Information & communication | 2023 |
| Penev Delivery Ltd | Transport & logistics | 2022 |
| Pentad Roots Limited | Other services | 2026 |
| People Consultancy Group Limited | Professional & scientific | 2022 |
| Percy ST Holdings Ltd | Real estate | 2023 |
| Perfect Flooring Specialist Ltd | Wholesale & retail | 2025 |
| Perfect Marketing Associates Limited | Professional & scientific | 2014 |
| Performance Part Exchange Limited | Wholesale & retail | 2024 |
| Peridot Stone Properties Limited | Real estate | 2018 |
| Perishable Movements Limited | Transport & logistics | 2003 |
| Perperikon Limited | Professional & scientific | 2018 |
| Perpetual Investments Limited | Real estate | 2020 |
| Peter Local Fisheries Limited | Wholesale & retail | 2021 |
| Peter Trove Limited | Wholesale & retail | 2024 |
| PFC Victoria London Limited | Arts & recreation | 2018 |
| Pfqs Ltd | Professional & scientific | 2020 |
| Pg&S Sprinkler Ltd | Construction | 2019 |
| Pgpg Ltd | Other services | 2013 |
| Phantom Road Express Ltd | Wholesale & retail | 2025 |
| Pharma Career Partner Ltd | Administrative & support | 2026 |
| Pharma D-Daniels Limited | Health & social care | 2020 |
| Pharma Globe Consultant Ltd | Professional & scientific | 2013 |
| Pharma Online Ltd | Health & social care | 2025 |
| Pharmalink Consultancy Limited | Professional & scientific | 2013 |
| Phase Mastery Ltd | Wholesale & retail | 2019 |
| Pheonix Recruitment Limited | Administrative & support | 2009 |
| Phillip Ross Taylor Software Ltd. | Information & communication | 2018 |
| Phoenix Enclave Ltd | Real estate | 2026 |
| Phoenix Technologies Limited | Information & communication | 2023 |
| Piano Limited | Professional & scientific | 2019 |
| Pierco 1 Limited | Financial services | 2024 |
| Pillars&Posts Ltd | Construction | 2024 |
| Pillhub Ltd | Wholesale & retail | 2019 |
| Pine Cone Property Services Ltd | Construction | 2020 |
| Pinetree Capital Limited | Real estate | 2024 |
| Pinewell Properties Ltd | Real estate | 2012 |
| Pinewood Parks Ltd | Hospitality | 2023 |
| Pingsoft Limited | Information & communication | 2004 |
| Pinki Property Limited | Real estate | 2024 |
| Pinti Jewels Ltd | Wholesale & retail | 2013 |
| Pioneer Complete Solutions Limited | Construction | 2025 |
| Pipeline Sprints Limited | Professional & scientific | 2026 |
| Pisces Publishing Limited | Manufacturing | 1999 |
| PIT Viper Events Ltd | Arts & recreation | 2022 |
| Pivot Solutions (UK) Ltd | Wholesale & retail | 2012 |
| PIX Pickles Limited | Information & communication | 2015 |
| Pixiu Limited | Information & communication | 2023 |
| Pizza Box Europe Limited | Hospitality | 2022 |
| PJ Enteprises Ltd | Construction | 2015 |
| PJO Slowiak Ltd | Real estate | 2024 |
| Pkmr Ltd | Wholesale & retail | 2025 |
| PL HB Ltd | Wholesale & retail | 2019 |
| Plain Speaking Law Limited | Professional & scientific | 2010 |
| Plastica Recycling UK Ltd | Administrative & support | 2018 |
| Playful Palace Soft Play Ltd | Other services | 2025 |
| Playserious Limited | Information & communication | 2018 |
| Pleb Industries Ltd | Wholesale & retail | 2020 |
| Pleiadian Advisory Limited | Administrative & support | 2025 |
| PLS GAS Service Limited | Professional & scientific | 2018 |
| Plumbing and Drainage Sterling & Sons Ltd | Construction | 2026 |