| Pegasus Property and Investments Ltd | Real estate | 2026 |
| Pegasus Property Development Ltd | Wholesale & retail | 2016 |
| Pegasus Search & Selection Limited | Administrative & support | 2008 |
| Pegasus Search Group Limited | Financial services | 2017 |
| Pegasus Site Security Limited | Administrative & support | 2009 |
| Pegasus Site Support Ltd | Administrative & support | 2012 |
| Pegasus Topco Limited | Financial services | 2025 |
| Pegasus UK Services Ltd | Wholesale & retail | 2020 |
| Pegasus World Holdings Limited | Financial services | 2020 |
| Pegasus World Investment Limited | Financial services | 2020 |
| Pegasus World Ltd | Wholesale & retail | 2006 |
| Pegasus Zero Ltd. | Administrative & support | 2009 |
| Pelagic Imaging Ltd | Health & social care | 2025 |
| Pelicare Health & Home Solutions Ltd | Wholesale & retail | 2025 |
| Pellopuu UK Ltd | Construction | 2025 |
| Pellumb Hasula Limited | Construction | 2013 |
| Pema Property Invest Limited | Real estate | 2019 |
| Pemberturner Limited | Administrative & support | 2017 |
| Pembrey Engineering Limited | Administrative & support | 2023 |
| Pembrokeshire Haven Developments Limited | Real estate | 2013 |
| Pemfit (Harrogate) Ltd | Other services | 2021 |
| Pemlarc Consulting Ltd | Information & communication | 2018 |
| Pemsa UK Limited | Wholesale & retail | 2002 |
| Pemwards Stays Ltd | Real estate | 2024 |
| PEN Mobile Ltd | Information & communication | 2019 |
| Penbrooke Ltd | Wholesale & retail | 2025 |
| Pendar Technologies Ltd | Other services | 2013 |
| Pendas Fields (Leeds) Management Company Limited | Households | 1981 |
| Pendas Software Consultancy Limited | Information & communication | 2012 |
| Pendas Way Ltd | Wholesale & retail | 2020 |
| Pendhouses Ltd | Real estate | 2025 |
| Pendle Coach Travel Limited | Transport & logistics | 2022 |
| Pendragon Medical Limited | Health & social care | 2014 |
| Pendragon Podiatry Ltd | Health & social care | 2023 |
| Pene Pizza Limited | Hospitality | 2019 |
| Penelle Ltd | Administrative & support | 2011 |
| Penguin Maintenance Limited | Administrative & support | 2015 |
| Penguin Solutions Europe Limited | Manufacturing | 1993 |
| Pengwern Real Estate Company Limited | Professional & scientific | 2018 |
| Peniel Technologies Limited | Information & communication | 2011 |
| Peninsula Consulting Limited | Extraterritorial | 2016 |
| Penistone Developments Limited | Construction | 2009 |
| Penistone Plant Ltd | Administrative & support | 2023 |
| Penistone Road Management Company Limited | Real estate | 2006 |
| Penleigh International Ltd | Professional & scientific | 2020 |
| Penn Hill Leisure Ltd | Hospitality | 2003 |
| Penna Holdings Ltd | Real estate | 2020 |
| Pennine Bar Hire Limited | Administrative & support | 2009 |
| Pennine Housing Solutions CIC | Real estate | 2019 |
| Pennine Property ( Yorkshire) Limited | Real estate | 2021 |
| Pennine Refrigeration Services Limited | Manufacturing | 2020 |
| Pennine Risk Surveyors Ltd | Professional & scientific | 2021 |
| Pennine Tyres Limited | Wholesale & retail | 2007 |
| Penny Hill Nails & Spa Ltd | Other services | 2026 |
| Penny Way Snaith Management Company Limited | Households | 2024 |
| Penny's Community Arts CIC | Education | 2018 |
| Pennygate Development Ltd | Construction | 2022 |
| Pennywolf Ltd | Wholesale & retail | 2020 |
| Penrican Credit Limited | Financial services | 1989 |
| Penrose Real Estate Ltd | Real estate | 2023 |
| Pension & Investment Partners LLP | | 2006 |
| Pension Systems Ltd | Extraterritorial | 2014 |
| Pensions Rapport Ltd | Financial services | 2015 |
| Penta Merch Limited | Wholesale & retail | 2019 |
| Pentagon AM Ltd | Professional & scientific | 2021 |
| Pentagon Group Investments Limited | Financial services | 2026 |
| Pentagon HQ Ltd | Professional & scientific | 2021 |
| Pentapixel Ltd | Information & communication | 2018 |
| Pentaro Ltd | Administrative & support | 2022 |
| Pentea Partners Ltd | Real estate | 2025 |
| Penthouse Group Holdings Ltd | Arts & recreation | 2025 |
| Penthouse Padel Club Ltd | Arts & recreation | 2025 |
| Penthouse Padel Ltd | Arts & recreation | 2025 |
| Penthouse Pilates Ltd | Arts & recreation | 2025 |
| Pentzion Ltd | Construction | 2024 |
| Penylan Services Ltd | Information & communication | 2018 |
| Peony Advisors Limited | Administrative & support | 2016 |
| Peony Nails Limited | Other services | 2020 |
| People 4 People HR Consultant Limited | Administrative & support | 2018 |
| People Create Limited | Professional & scientific | 2007 |
| People Efficient Ltd | Information & communication | 2019 |
| People in Action (Yorkshire) | Other services | 1989 |
| People NOT Tech Limited | Professional & scientific | 2018 |
| People of the Nightlife Limited | Arts & recreation | 2022 |
| People Powered Homes Limited | Construction | 2021 |
| People Surf Limited | Administrative & support | 2011 |
| People Together CIC | Public administration | 2023 |
| People WHO Thrive Ltd | Professional & scientific | 2020 |
| Peoplebiz Limited | Administrative & support | 2012 |
| Peopledotcom Ltd | Information & communication | 2020 |
| Peopleist Limited | Administrative & support | 2024 |
| Peopletechnology Ltd | Information & communication | 2025 |
| Peopology Limited | Professional & scientific | 2013 |
| PEP in UK Prisons CIC | Education | 2023 |
| Pepa Greek Food Limited | Hospitality | 2026 |
| Pepi's Pizza Limited | Hospitality | 2012 |
| Pepperm Limited | Wholesale & retail | 2025 |
| Peppermint Properties Yorkshire Ltd | Real estate | 2022 |
| Pepsmur Ltd | Professional & scientific | 2025 |
| Peptidzlab.Com Ltd | Wholesale & retail | 2025 |