| Penny's Sweet Shop Limited | Wholesale & retail | 2023 |
| Pennybridge Capital Ltd | Other services | 2019 |
| Pennyhr Limited | Administrative & support | 2025 |
| Penrat Grandworld Ocean Limited | Manufacturing | 2025 |
| Penrhiwceiber Limited | Real estate | 2023 |
| Penrhos Arms Limited | Hospitality | 2008 |
| Pensaer AI Ltd | Information & communication | 2025 |
| Penscale Limited | Professional & scientific | 2025 |
| Pension & Wealth Management Ltd | Financial services | 2017 |
| Pensionfinderuk Ltd | Financial services | 2026 |
| Pensionswatch Limited | Professional & scientific | 2005 |
| Pensolab Digital Ltd | Information & communication | 2025 |
| Penstone Property Limited | Real estate | 2023 |
| Pentagon Cleaning and Maintenance Ltd | Administrative & support | 2019 |
| Pentagon Services Limited | Administrative & support | 2019 |
| Pentagram for Training and Consulting Ltd | Professional & scientific | 2025 |
| Pentan Consultancy Services Limited | Professional & scientific | 2012 |
| Pentholm Properties Limited | Construction | 2000 |
| Pentir Education Ltd | Education | 2024 |
| Pentraxilov Ltd | Wholesale & retail | 2026 |
| Pentre Nicklaus (Phase 1) Management Company Ltd | Professional & scientific | 2003 |
| Pentwyn Hand Car Wash Ltd | Administrative & support | 2026 |
| Pentwyn Kebab House Ltd | Hospitality | 2024 |
| Pentyrch Boarding Kennels Ltd | Other services | 2023 |
| Pentyrch Pharmacy Limited | Wholesale & retail | 2009 |
| Penybont Real Estate Company Limited | Real estate | 1963 |
| Penylan Consulting Ltd | Information & communication | 2011 |
| Penylan Fish Bar Limited | Wholesale & retail | 2012 |
| Penylan Flats (Cardiff) Limited | Households | 2024 |
| Penylan Freehold Ltd | Households | 2024 |
| Penylan Heating Limited | Construction | 2008 |
| Penylan Management Ltd | Households | 2018 |
| Penylan Plumbing & Heating Ltd | Construction | 2011 |
| Penylan Preserves Ltd | Manufacturing | 2023 |
| Penylan Property Ltd | Real estate | 2019 |
| People About Care Ltd | Health & social care | 2021 |
| People and Work Unit | Professional & scientific | 1984 |
| People Capability Consulting Ltd | Professional & scientific | 2021 |
| People Club Ltd | Professional & scientific | 2020 |
| People Collective London Ltd | Professional & scientific | 2018 |
| People Data Consulting Ltd | Information & communication | 2018 |
| People First Housing Limited | Real estate | 2025 |
| People Grown Technologies Ltd | Information & communication | 2025 |
| People Recruitment Ltd | Administrative & support | 2022 |
| People's Pubs Limited | Hospitality | 2004 |
| Peoples Chariitable Hospital Ltd | Wholesale & retail | 2026 |
| PEP Transport Services Limited | Transport & logistics | 2025 |
| Pepcos & Massy Professional Services Ltd | Information & communication | 2026 |
| Pepcos & Massy Property Management Ltd | Households | 2026 |
| Pepcos & Massy Property Services Ltd | Construction | 2026 |
| Pepcos & Massy Real Estates Ltd | Real estate | 2026 |
| Pepp Ltd | Education | 2024 |
| Peppa & Punch Limited | Hospitality | 2025 |
| Pepper Cyprus Holdings Limited | Financial services | 2017 |
| Pepper Europe (UK) Limited | Financial services | 2012 |
| Pepper Europe Investments UK Ltd | Financial services | 2013 |
| Pepper Global EU Holdco Limited | Financial services | 2020 |
| Pepper Group ANZ Holdco Limited | Financial services | 2008 |
| Pepper Group India Holdings Limited | Financial services | 2022 |
| Pepper India Financial Holdings Limited | Financial services | 2022 |
| Pepper India Financial Holdings NO1 Limited | Financial services | 2022 |
| Pepper India Holdings Limited | Financial services | 2022 |
| Pepper Italian Investments Limited | Financial services | 2016 |
| Pepper Money (PMB) Limited | Financial services | 2018 |
| Pepper Money Group Limited | Financial services | 2018 |
| Pepper Money Limited | Financial services | 2018 |
| Pepper Spanish Holdings Limited | Financial services | 2016 |
| Peppercorn AI Holdings Limited | Information & communication | 2020 |
| Pepperpot Trading and Construction Ltd | Construction | 2019 |
| Peppertree Accountants Ltd | Professional & scientific | 2019 |
| Pepperwoodkitchen Limited | Hospitality | 2019 |
| Peptide Pets Ltd | Wholesale & retail | 2022 |
| Peqxen Limited | Wholesale & retail | 2023 |
| PER Sempre Leather Ltd | Wholesale & retail | 2019 |
| Peracto Search Group Ltd | Administrative & support | 2015 |
| Perc Limited | Construction | 2014 |
| Perceive Ltd | Wholesale & retail | 2007 |
| Percipio Global Ltd | Information & communication | 2014 |
| Percival (Thornhill) Management Company Limited | Households | 1983 |
| Percoz Services Ltd | Administrative & support | 2020 |
| Perdon Limited | Wholesale & retail | 2023 |
| Perdusa Limited | Other services | 2019 |
| Peregrine Creative Group Limited | Wholesale & retail | 2016 |
| Peregrine Heights Limited | Hospitality | 2025 |
| Peregrine Technologies (Operational Support) Ltd | Manufacturing | 2023 |
| Perennial Holdings Limited | Financial services | 2025 |
| Perennial Income Ltd | Other services | 2015 |
| Perennial Power Solutions Ltd | Construction | 2026 |
| Pererva Ltd | Information & communication | 2025 |
| Peretti Group Co., Ltd | Extraterritorial | 2021 |
| Perfect Building Solutions Limited | Construction | 2009 |
| Perfect CUT Garden & Grounds Ltd | Administrative & support | 2023 |
| Perfect European Tours Ltd | Arts & recreation | 2024 |
| Perfect Finish Rendering and Plastering Ltd | Construction | 2019 |
| Perfect Gold Ltd | Manufacturing | 2020 |
| Perfect Home Decorators Limited | Construction | 2018 |
| Perfect House Plants Limited | Wholesale & retail | 2022 |
| Perfect IT Solutions Limited | Information & communication | 2025 |
| Perfect Joinery Ltd | Manufacturing | 2019 |
| Perfect Level Master UK Ltd | Wholesale & retail | 2016 |