| Penfra + Co Ltd | Professional & scientific | 2025 |
| Penguin Solutions Ltd | Financial services | 2024 |
| Peniche Trans Ltd | Transport & logistics | 2017 |
| Peniel Foods Limited | Manufacturing | 2015 |
| Penj Holdings Ltd | Financial services | 2023 |
| Penmark Holdings Ltd | Financial services | 2024 |
| Penmon Associates Limited | Professional & scientific | 2014 |
| Penmon Futures Ltd | Real estate | 2015 |
| Penn Power Consulting Ltd | Professional & scientific | 2025 |
| Pennbury Farm Ltd | Real estate | 2017 |
| Penney Lane Residents Association Limited | Households | 1983 |
| Pennine Castings Limited | Manufacturing | 1988 |
| Penny Bags Limited | Extraterritorial | 1995 |
| Pennywise Contracts Limited | Professional & scientific | 2024 |
| Pennywise Retail Ltd | Wholesale & retail | 2024 |
| Penpixel Digital Press Ltd | Information & communication | 2025 |
| Penrose Electrical Ltd | Construction | 2020 |
| Pension Consulting Limited | Professional & scientific | 1999 |
| Penta Alliance Ltd | Health & social care | 2025 |
| Pentag Limited | Administrative & support | 2007 |
| Pentagon Projects Ltd | Construction | 2018 |
| Pentastage Management Ltd | Arts & recreation | 2015 |
| Pentastra Group Limited | Wholesale & retail | 2014 |
| Pentastra Ltd | Information & communication | 2019 |
| Pentire Hotel Limited | Hospitality | 2005 |
| Pentlands Green Ltd | Real estate | 2025 |
| Penweather Deals Ltd | Transport & logistics | 2015 |
| PEO Wellness Limited | Wholesale & retail | 2019 |
| Peony & Pine Ltd | Manufacturing | 2024 |
| People First Human Resources Ltd | Professional & scientific | 2025 |
| People First Recruitment Solutions Ltd | Administrative & support | 2013 |
| People Initiatives Ltd | Administrative & support | 2021 |
| People IT Limited | Information & communication | 2023 |
| Peoplesgate Limited | Health & social care | 2016 |
| Peplow Quality Ltd | Transport & logistics | 2015 |
| Pepper Green Limited | Manufacturing | 2023 |
| Peppercorn Holdings Ltd | Real estate | 2021 |
| Peppervine Ltd | Hospitality | 2020 |
| Peppy Fashion Ltd | Manufacturing | 2021 |
| Perago Investments Limited | Real estate | 2013 |
| Percent Ltd | Financial services | 2020 |
| Percy 5979 Ltd | Real estate | 2026 |
| Percy Holdings Limited | Extraterritorial | 2016 |
| Percy Lord and SON Limited | Wholesale & retail | 1953 |
| Percy Martin Limited | Wholesale & retail | 1952 |
| Perexky Ltd | Agriculture & fishing | 2021 |
| Perfect Circle JV Ltd | Professional & scientific | 2016 |
| Perfect Constructing Ltd | Construction | 2019 |
| Perfect Eyebrows Bar Ltd | Other services | 2014 |
| Perfect Financial Planning Limited | Financial services | 2025 |
| Perfect Finish Painting & Decorating Ltd | Construction | 2025 |
| Perfect Repair Works Limited | Wholesale & retail | 2025 |
| Perfect Serve Ltd | Hospitality | 2023 |
| Perfect Smiles CN Limited | Health & social care | 2026 |
| Perfect Smiles KP Ltd | Health & social care | 2014 |
| Perfect Supplies Ltd | Manufacturing | 2024 |
| Perfectcast Limited | Administrative & support | 2004 |
| Perfection Alloys Holdings Limited | Financial services | 2025 |
| Perfection Alloys Limited | Wholesale & retail | 2005 |
| Perfection Leather & Trim Limited | Administrative & support | 2008 |
| Perfectionist Tiling Limited | Construction | 2019 |
| Perfectly Pitched Events Limited | Hospitality | 2021 |
| Perfecto Party Ltd | Arts & recreation | 2017 |
| Perfekt Solutions Ltd | Wholesale & retail | 2013 |
| Perfigent Ltd | Information & communication | 2026 |
| Perform 365 Ltd | Wholesale & retail | 2005 |
| Perform Supplements Ltd | Wholesale & retail | 2026 |
| Performance and Aesthetics Limited | Arts & recreation | 2021 |
| Performance Car Leicester Ltd | Wholesale & retail | 2025 |
| Performance Silicone Hoses Limited | Manufacturing | 2005 |
| Perfume People Limited | Wholesale & retail | 2014 |
| Perfumes ZAG Zodiak UK Ltd | Wholesale & retail | 2020 |
| Perfumewala Ltd | Wholesale & retail | 2023 |
| Pergersys Limited | Information & communication | 2025 |
| Peri Leicester Ltd | Hospitality | 2017 |
| Peri Classic Limited | Hospitality | 2023 |
| Peri Frangos Ltd | Hospitality | 2018 |
| Peri Peri Flames (Fosse Road) Limited | Hospitality | 2022 |
| Peri Peri Flames 2 Ltd | Hospitality | 2018 |
| Peri Peri Flames Ltd | Hospitality | 2016 |
| Peri Peri Grillos Ltd | Hospitality | 2026 |
| Period Joinery Limited | Manufacturing | 1999 |
| Period Mouldings Limited | Manufacturing | 2009 |
| Peritus Cognitionis Consulting Ltd | Administrative & support | 2019 |
| Peritus Learning and Development Limited | Professional & scientific | 2014 |
| Perky Pubs Ltd | Financial services | 2019 |
| Perla Cafe Ltd | Hospitality | 2023 |
| Perlac Investments Limited | Financial services | 2024 |
| Permahomes Builders and Joiners Ltd | Construction | 2024 |
| Perpetual Atomics Holdings Ltd | Financial services | 2026 |
| Perpetual Atomics Ltd | Manufacturing | 2024 |
| Perryjones Financial Planning Limited | Financial services | 2021 |
| Perrywood Haulage Ltd | Transport & logistics | 2014 |
| Persian Property Group Ltd | Real estate | 2021 |
| Persley Park Limited | Hospitality | 2020 |
| Personal Care Packs Limited | Manufacturing | 2013 |
| Personal Homecare Pharmacy Ltd | Other services | 2010 |
| Personal Touch Accounting Services Limited | Professional & scientific | 2003 |
| Personality Disorders CIC | Wholesale & retail | 2025 |
| Personnel Manager Limited | Professional & scientific | 2007 |