| PAN African Research Consulting Limited | Professional & scientific | 2014 |
| PAN Communications Ltd. | Professional & scientific | 2012 |
| PAN London Vehicle for Children's Complex Commissioning Ltd | Public administration | 2023 |
| Panacea Locums Limited | Wholesale & retail | 2023 |
| Panacea Selection Limited | Administrative & support | 2002 |
| Panache Pictures Ltd | Information & communication | 2025 |
| Panarax Marketing Limited | Construction | 2025 |
| Panattoni Park Aylesford Management Company Limited | Real estate | 2022 |
| Panattoni Park Borehamwood Management Company Limited | Real estate | 2023 |
| Panattoni Park Nottingham Management Company Limited | Real estate | 2023 |
| Panda Food Waste Disposal Units Limited | Manufacturing | 2002 |
| Pandamonium Limited | Education | 2009 |
| Pandek Group Limited | Professional & scientific | 2020 |
| Pandian Properties Limited | Real estate | 2015 |
| Pando Consultants Ltd. | Professional & scientific | 2007 |
| Pane & Vino Property Management Ltd | Hospitality | 2024 |
| Panelfix Ltd | Wholesale & retail | 2018 |
| Panelle Worldwide Ltd | Other services | 2024 |
| Pangaea Catering Limited | Other services | 2017 |
| Pangaea Vapour Distribution Ltd | Extraterritorial | 2016 |
| Panilets Transport Limited | | 1973 |
| Panna Play Limited | Administrative & support | 2024 |
| Pannu Property Ltd | Real estate | 2023 |
| Panoply Digital Limited | Education | 2015 |
| Panorama Place Limited | Households | 2020 |
| Panoramic Associates Ltd | Administrative & support | 2009 |
| Panoramic Windows Holdings (NO2) Limited | Financial services | 2020 |
| Panrucker Industries Limited | Arts & recreation | 2016 |
| Pansaro Ltd | Manufacturing | 2025 |
| Panta Rhei Consulting Ltd | Information & communication | 2024 |
| Panterra Limited | Wholesale & retail | 2010 |
| Panther Construction Ltd | Construction | 2021 |
| Panther Homes Ltd | Real estate | 2026 |
| Panthera Labs Ltd | Professional & scientific | 2018 |
| Pantry Commercial Ltd | Wholesale & retail | 2025 |
| Pantry Property Ltd | Real estate | 2024 |
| Panunzio's Kitchen Gelati Italiani Ltd | Manufacturing | 2021 |
| Panzer Facilities Limited | Administrative & support | 2016 |
| Paocca Ltd | Professional & scientific | 2025 |
| Papa's Barber Shop Ltd | Other services | 2019 |
| Papadeli Foods Limited | Wholesale & retail | 2007 |
| Papanka Ltd. | Wholesale & retail | 2020 |
| Papaw Franchise Ltd | Wholesale & retail | 2025 |
| Papaw KTV Ltd | Hospitality | 2024 |
| Paper CUP Productions Ltd | Arts & recreation | 2011 |
| Paper Dragon Properties Limited | Real estate | 2020 |
| Paper IS the Record Ltd | Information & communication | 2023 |
| Paper Street Media Ltd | Information & communication | 2022 |
| Paper Tiger Co-Operative Ltd | Professional & scientific | 1988 |
| Paper Trails MAP Company Ltd | Professional & scientific | 2019 |
| Paperbark Theatre Company Ltd | Arts & recreation | 2017 |
| Paperboard Plus Limited | Manufacturing | 2025 |
| Papercloud Ltd | Professional & scientific | 2018 |
| Papercranes Ltd | Hospitality | 2015 |
| Paperless Pixie Ltd | Administrative & support | 2019 |
| Paperline Limited | Wholesale & retail | 1990 |
| Papersmyths Limited | Professional & scientific | 2008 |
| Papillon DE LA Nuit Ltd | Extraterritorial | 2025 |
| Papillon Europe Ltd | Professional & scientific | 2012 |
| Papillon Holdings Ltd | Real estate | 2024 |
| Papple Brothers Ltd | Hospitality | 2020 |
| Pappu Dosa Limited | Hospitality | 2022 |
| Paprika Whitchurch Limited | Hospitality | 2022 |
| PAR 4 Holdings Limited | Financial services | 2022 |
| PAR Consult Ltd | Information & communication | 2019 |
| PAR Legal Consultants Limited | Professional & scientific | 2015 |
| PAR Process Analysis Reagents and Chemicals Limited | Wholesale & retail | 2017 |
| PAR Property Holdings Ltd | Real estate | 2026 |
| Parabola Management Services Ltd | Professional & scientific | 2026 |
| Parade Court (Management) Company Limited | Households | 2002 |
| Parade Nurseries Management Company Limited | Households | 1988 |
| Paradice Ltd | Arts & recreation | 2020 |
| Paradice Solutions Limited | Information & communication | 2000 |
| Paradigm (Sheffield BSF) Holdings Limited | Professional & scientific | 2007 |
| Paradigm (Sheffield BSF) Limited | Administrative & support | 2007 |
| Paradigm Carbontrust Partners Ltd | Agriculture & fishing | 2012 |
| Paradigm Energies Group Ltd | Agriculture & fishing | 2015 |
| Paradigm Energies Ltd | Transport & logistics | 2010 |
| Paradigm Financial Planning Limited | Professional & scientific | 2005 |
| Paradigm Norton Financial Planning Limited | Financial services | 2001 |
| Paradigm Norton Holdings Limited | Financial services | 2014 |
| Paradigm Post-Production Limited | Information & communication | 2020 |
| Paradigm Software Consultants Limited | Information & communication | 1997 |
| Paradigm Tech Limited | Administrative & support | 2023 |
| Paradise Express Services Ltd | Transport & logistics | 2010 |
| Paradise in Ice Ltd | Hospitality | 2017 |
| Paradise Yate Limited | Health & social care | 2020 |
| Paragon Financial Investments Limited | Professional & scientific | 2014 |
| Paragon Gardens Limited | Households | 1997 |
| Paragon Graphics Limited | Financial services | 2019 |
| Paragon Group Holdings Limited | Manufacturing | 2000 |
| Paragon Marine Consulting Limited | Professional & scientific | 2022 |
| Paragon Motors U.K Ltd | Wholesale & retail | 2019 |
| Paragon Transaction (U.K.) Limited | Financial services | 2004 |
| Parallax Structures Ltd | Professional & scientific | 2021 |
| Parallel Recruitment Ltd | Administrative & support | 2024 |
| Param Convenience Ltd | Wholesale & retail | 2024 |
| Parametric Holdings (UK) Limited | Professional & scientific | 1999 |
| Parametric Technology (UK) Limited | Information & communication | 1990 |
| Paramitha Community Development Foundation | Health & social care | 2012 |