| Pangpangyu Ltd | Wholesale & retail | 2024 |
| Pantano Kart UK Ltd | Wholesale & retail | 2026 |
| Pantara Limited | Construction | 2012 |
| Papakis Deli Limited | Hospitality | 2016 |
| Paper Street Market Ltd | Wholesale & retail | 2025 |
| Papiwos Constructions Ltd | Construction | 2024 |
| Papworth Healthcare Limited | Wholesale & retail | 1998 |
| Paracosm Holdings Ltd | Financial services | 2026 |
| Paradise Tours Limited | Administrative & support | 2023 |
| Paradox Space Limited | Information & communication | 2025 |
| Paragon Proactive Consulting Limited | Professional & scientific | 2008 |
| Parallax III Limited | Information & communication | 2026 |
| Parca Supplies Ltd | Wholesale & retail | 2023 |
| Parcelrate Solutions Limited | Transport & logistics | 2025 |
| Parcmi Ltd | Information & communication | 2024 |
| Pareto FD Limited | Extraterritorial | 2012 |
| Pareto Financial Direction Limited | Professional & scientific | 2007 |
| Parim Evidencia Ltd | Wholesale & retail | 2019 |
| Park and Leisure Ltd | Wholesale & retail | 2011 |
| Park Gate Eastern Limited | Construction | 2024 |
| Park Lane Meadows Limited | Hospitality | 2017 |
| Parker DAR Legal Recruitment Limited | Professional & scientific | 2013 |
| Parkhunts Limited | Arts & recreation | 2020 |
| Parkside Refreshments Limited | Hospitality | 2024 |
| Parkview RTM Company Limited | Households | 2026 |
| Parmatech Ltd | Administrative & support | 2024 |
| Parnells Bakery Limited | Wholesale & retail | 2003 |
| Parody Studios Inc. Limited | Information & communication | 2024 |
| Parrota Ltd | Information & communication | 2025 |
| Parrott Flooring Limited | Other services | 2015 |
| Partum Animus Ltd | Health & social care | 2022 |
| Party Events Limited | Other services | 2015 |
| Party Prints & Decorations Ltd | Manufacturing | 2022 |
| PAS128 Ltd | Construction | 2019 |
| Pasprefut Limited | Extraterritorial | 2025 |
| Pass Property Ltd | Real estate | 2026 |
| Passiv Capital Limited | Information & communication | 2018 |
| Passiv UK Limited | Professional & scientific | 2020 |
| Passive Commerces Ltd | Information & communication | 2025 |
| Passport Accelerators Ltd | Administrative & support | 2024 |
| Past Parts Limited | Wholesale & retail | 1987 |
| Past Presence Ltd | Professional & scientific | 2026 |
| PAT Partners Ltd | Professional & scientific | 2013 |
| Patch Architecture Ltd | Professional & scientific | 2022 |
| Patel & Patel Freeholds Ltd | Real estate | 2024 |
| Patel & Patel Holdings Ltd | Real estate | 2024 |
| Patel & Patel Properties Ltd | Real estate | 2022 |
| Patel Acquisitions Limited | Real estate | 2025 |
| Patel Enterprises Incorporated Limited | Financial services | 2025 |
| Path of Refinement Ltd | Other services | 2025 |
| Pathfinder Way (Varsity Grange H3) Resident Management Co Ltd | Households | 2024 |
| Pathway Nexus Ltd | Information & communication | 2026 |
| Pathway Sports Ltd | Arts & recreation | 2024 |
| Patina Properties Limited | Construction | 2025 |
| Patio Pioneers Limited | Administrative & support | 2026 |
| Paul Cook Film Limited | Information & communication | 2022 |
| Paul Davis Aerial, Satellite & Security Systems Limited | Other services | 2010 |
| Paul Duffy Painters and Decorators Limited | Professional & scientific | 2007 |
| Paul James Audio Visual Ltd | Wholesale & retail | 2002 |
| Paul Nunn Roofing Limited | Construction | 2003 |
| Paul Stribling Coach Tours Limited | Professional & scientific | 2024 |
| Paul Wheeler (Fresh Supplies) Limited | Wholesale & retail | 2007 |
| Paula Edgington Associates Limited | Professional & scientific | 2012 |
| Paula Heaney Improvement Services Ltd | Education | 2016 |
| Pauline’S Bites Ltd | Hospitality | 2025 |
| Pavescape Groundworks Ltd | Administrative & support | 2026 |
| Pawlyns Cornwall Limited | Manufacturing | 2026 |
| Pawpaw Fitness Coaching Ltd | Education | 2025 |
| Paws & Buds Ltd | Wholesale & retail | 2025 |
| Paws and Claws Pet Waste Removal Ltd | Water & waste | 2025 |
| Paws PT Limited | Other services | 2022 |
| Pawsey Holdings Company Limited | Extraterritorial | 2011 |
| Pawsitive Holdings Limited | Real estate | 2024 |
| Pawsome Companions Ltd | Agriculture & fishing | 2024 |
| Pawsons Hill Ventures Ltd | Information & communication | 2026 |
| Pawstachio Ltd | Wholesale & retail | 2026 |
| PAY JEW Limited | Financial services | 2026 |
| Payfaci Ltd | Wholesale & retail | 2024 |
| Payg CTO Limited | Information & communication | 2023 |
| Paymo UK Ltd | Other services | 2023 |
| Payne Consultancy & Contracts Limited | Professional & scientific | 2013 |
| Payroll Solutions UK Pro Ltd | Administrative & support | 2025 |
| PB NI Consulting Limited | Information & communication | 2024 |
| Pbim Limited | Information & communication | 2012 |
| Pbsa Contracting Ltd | Construction | 2025 |
| PC Flying Doctors Limited | Information & communication | 2002 |
| PC Recruit Ltd | Professional & scientific | 2013 |
| PC Technical Services Ltd | Administrative & support | 2011 |
| PCB Limited | Extraterritorial | 2018 |
| PCD Electrical Ltd | Construction | 2019 |
| PCL Solutions Ltd | Wholesale & retail | 2024 |
| PCN Solutions Ltd | Health & social care | 2023 |
| Pcps Group Ltd | Administrative & support | 2025 |
| PDH & Daughter Ltd | Real estate | 2025 |
| PE Playground Limited | Education | 2025 |
| Peace Catalyst Ltd | Health & social care | 2022 |
| Peace Lily Properties Ltd | Real estate | 2024 |
| Peace Officers UK CIC | Administrative & support | 2024 |
| Peak Access Blade Repairs Ltd | Manufacturing | 2026 |
| Peak Building Projects Ltd | Construction | 2021 |