| Pipers Coffee Limited | Hospitality | 2024 |
| Pipework Resources Limited | Construction | 2007 |
| Pippen MCG Limited | Hospitality | 2019 |
| Pisces Accounts Limited | Professional & scientific | 2008 |
| Pisces Fish Bar (Dinnington) Limited | Hospitality | 2014 |
| Pistisbeautytouch Ltd | Other services | 2025 |
| Piston & Patch Garage Ltd | Wholesale & retail | 2026 |
| Pitch Perfect Accountancy Limited | Professional & scientific | 2025 |
| Pitchbridge Ltd. | Professional & scientific | 2022 |
| Pitchpoint Comms Ltd | Professional & scientific | 2023 |
| Pitshanger Properties Ltd | Real estate | 2014 |
| Pitstop Autocare Limited | Wholesale & retail | 2017 |
| Pitstop Car & Commercial Automotive Services Limited | Wholesale & retail | 2021 |
| Pitta and Sauce Ltd | Hospitality | 2026 |
| Pittstop Tyres Ltd | Wholesale & retail | 2022 |
| PIU 39 Limited | Hospitality | 2025 |
| Pivigo Limited | Education | 2013 |
| Pivotal Impact Limited | Professional & scientific | 2024 |
| Pixel ADS Limited | Information & communication | 2025 |
| Pixel Development Systems Ltd | Information & communication | 2022 |
| Pixel DNA Limited | Information & communication | 2005 |
| Pixel-Flo Limited | Manufacturing | 2025 |
| Pixelrise Digital Ltd | Wholesale & retail | 2025 |
| Pixl-Marketing Ltd | Information & communication | 2025 |
| Pizz-Elia Limited | Hospitality | 2024 |
| Pizza City New Ltd. | Hospitality | 2025 |
| Pizza Concord Limited | Hospitality | 2018 |
| Pizza Kasra Limited | Hospitality | 2017 |
| Pizza Lodge Limited | Hospitality | 2018 |
| Pizza Master S5 Ltd | Hospitality | 2022 |
| Pizza MAX Limited | Hospitality | 2025 |
| Pizza Mozza Ltd | Hospitality | 2026 |
| Pizza Paradise Express Ltd | Hospitality | 2025 |
| Pizza PAZ Limited | Hospitality | 2026 |
| Pizza Power Ltd | Hospitality | 2026 |
| Pizza Pronto Broomhall Limited | Hospitality | 2025 |
| Pizza Triangolo Ltd | Hospitality | 2021 |
| Pizzaamour Limited | Hospitality | 2025 |
| Pizzaiolo U.K. Ltd | Hospitality | 2024 |
| PJ & AR Capital Limited | Professional & scientific | 2021 |
| PJ & J Holdings Ltd | Professional & scientific | 2015 |
| PJ Bradbury Consulting Ltd | Water & waste | 2026 |
| PJ Prejoy Fashion House Limited | Manufacturing | 2024 |
| PJ Residential Investments Limited | Real estate | 2003 |
| PJ Taste Employee Trust Limited | Financial services | 2023 |
| PJ Taste Holdings Limited | Financial services | 2019 |
| PJ Taste LLP | | 2012 |
| PJA Investments Ltd | Professional & scientific | 2004 |
| PJA Marketing Ltd | Professional & scientific | 2015 |
| PJA91 Limited | Information & communication | 2023 |
| Pjcs Property Services Limited | Real estate | 1994 |
| PJE Solutions Limited | Financial services | 2024 |
| Pjes Holdings Limited | Administrative & support | 2019 |
| Pjes Prop Ltd | Real estate | 2022 |
| Pjfh Holdings Limited | Financial services | 2024 |
| PJG Holdings Limited | Real estate | 2025 |
| PJM Plumbing & GAS Limited | Construction | 2014 |
| PJP Electrical Services Limited | Extraterritorial | 2023 |
| Pjrk Investments Ltd | Extraterritorial | 2025 |
| PJS Capital Limited | Financial services | 2021 |
| PJW Lifting Services Ltd | Transport & logistics | 2006 |
| PK Bars Limited | Hospitality | 2018 |
| PK BARS2 Limited | Professional & scientific | 2012 |
| PK Carver ST Ltd | Hospitality | 2015 |
| PK Education Limited | Education | 2019 |
| PK Newcastle Limited | Hospitality | 2025 |
| PK Property Services Ltd | Construction | 2015 |
| PK Swansea Ltd | Hospitality | 2019 |
| PKA Estates Ltd | Real estate | 2019 |
| PKC Electrical Services Ltd | Manufacturing | 2026 |
| Pkkinemesit Limited | Health & social care | 2023 |
| PKP888 Limited | Real estate | 2021 |
| PKR Sales Ltd | Wholesale & retail | 2024 |
| Pkrus Management Services Ltd | Professional & scientific | 2026 |
| PKW Installations Limited | Construction | 2013 |
| PL Health Limited | Health & social care | 2019 |
| PLA Law Limited | Professional & scientific | 2022 |
| Place & Purpose Studio Ltd | Professional & scientific | 2025 |
| Place to Place Motorhome Hire Limited | Administrative & support | 2025 |
| Place-Me Technologies Limited | Information & communication | 2013 |
| Placing Faces Ltd | Administrative & support | 2016 |
| Plague Dogs Entertainment Ltd | Information & communication | 2018 |
| Plan Alpha Systems Limited | Information & communication | 2004 |
| Plan B Climatech Limited | Administrative & support | 2024 |
| Plan Build Manage Ltd | Professional & scientific | 2016 |
| Plan Grow DO Ltd | Professional & scientific | 2020 |
| PLAN8 Traders Limited | Wholesale & retail | 2014 |
| Plancon 2015 Limited | Professional & scientific | 2015 |
| Planet Afrologie Ltd | Professional & scientific | 2025 |
| Planet Telecommunications Solutions Limited | Extraterritorial | 2008 |
| Planetrewind Ltd | Wholesale & retail | 2023 |
| Plangain Limited | Real estate | 1992 |
| Planned Homes Limited | Construction | 1954 |
| Planned Storage Systems Limited | Construction | 2021 |
| Plans for Extensions Limited | Professional & scientific | 2006 |
| Plant Cooling Products Limited | Wholesale & retail | 2025 |
| Plant Equipment Services Limited | Manufacturing | 2023 |
| Plant Parenthood Limited | Wholesale & retail | 2020 |
| Plant-Tech Solutions Limited | Professional & scientific | 2016 |
| Planta Building Technologies Ltd | Construction | 2009 |