| P31 Productions Limited | Administrative & support | 2021 |
| P37 Leeds Ltd | Hospitality | 2026 |
| P37 Ltd | Hospitality | 2024 |
| P37 Merrion Ltd | Hospitality | 2024 |
| P4 Plastering Limited | Construction | 2023 |
| P4D UK Limited | Wholesale & retail | 2019 |
| P72 Limited | Manufacturing | 2024 |
| PA Medical Imaging & Intervention Ltd | Health & social care | 2025 |
| PA Records Ltd | Information & communication | 2025 |
| Pabh (Leeds) Limited | Information & communication | 2022 |
| Pablo Munoz Roman Ltd | Professional & scientific | 2022 |
| Pablo Vanguard Logistics Ltd | Extraterritorial | 2024 |
| Pablo's Garage Ltd | Wholesale & retail | 2026 |
| Pablo's Takeaway Ltd | Hospitality | 2025 |
| Pabs & Alex Ltd | Construction | 2025 |
| Pace Nexus Ltd | Professional & scientific | 2025 |
| Paceline Limited | Professional & scientific | 2013 |
| Pacer Labs Ltd | Information & communication | 2025 |
| Pacific Consultants Ltd | Administrative & support | 2025 |
| Pacific Financial Claims Ltd | Administrative & support | 2015 |
| Pacific Holdings Corp Ltd | Hospitality | 2023 |
| Pacific House Workspace Limited | Professional & scientific | 2019 |
| Pacific Shelf 1826 Limited | Construction | 2004 |
| Pack Before YOU Go Go Ltd | Administrative & support | 2024 |
| Pack Solutions Limited | Real estate | 2015 |
| Packaging Inn Ltd | Wholesale & retail | 2025 |
| Packaging R US Limited | Manufacturing | 2023 |
| Packsol Limited | Wholesale & retail | 2016 |
| Paco Paintworx Ltd | Construction | 2026 |
| Paco Restaurant Ltd | Hospitality | 2021 |
| Pacsafe Limited | Transport & logistics | 2007 |
| Pacy Design Ltd | Professional & scientific | 2012 |
| Padam Enterprises Limited | Administrative & support | 2018 |
| Padam Kaur Limited | Information & communication | 2018 |
| Paddick Engineering Limited | Professional & scientific | 1981 |
| Paddico (267) Limited | Real estate | 2004 |
| Paddington Homes Ltd | Construction | 2017 |
| Paddylites Ltd | Administrative & support | 2021 |
| Paddys Law Ltd | Professional & scientific | 2025 |
| Padel at the PUB (Black Horse) Ltd | Arts & recreation | 2026 |
| Padel District Limited | Wholesale & retail | 2026 |
| Padel Engineering Club Ltd | Wholesale & retail | 2025 |
| Padel in the Community CIC | Arts & recreation | 2026 |
| Padel Point Pudsey Ltd | Arts & recreation | 2026 |
| Padero Consulting Limited | Professional & scientific | 2011 |
| Padraig Fireworks Ltd | Wholesale & retail | 2025 |
| Pads N Pets Ltd | Other services | 2018 |
| Padstow Group Ltd | Administrative & support | 2020 |
| Padtonight Ltd | Hospitality | 2021 |
| Padua Investments Limited | Real estate | 2021 |
| Padz Ltd | Information & communication | 2025 |
| Paediatric Imaging Solutions Limited | Health & social care | 2023 |
| Paediatric Neuropsychology Services Limited | Health & social care | 2018 |
| Page 3 Services Ltd | Transport & logistics | 2025 |
| Page Alliance Healthcare Limited | Administrative & support | 2018 |
| Page Gallery Editions Ltd | Information & communication | 2026 |
| Page Two Limited | Real estate | 2006 |
| Paget Property Investments Ltd | Real estate | 2016 |
| Paggy TUB Laundrette Ltd | Other services | 2025 |
| Pagmon Holdings Ltd | Financial services | 2019 |
| Pagmon Property Ltd | Real estate | 2019 |
| Pagoda Properties Limited | Real estate | 2008 |
| Pagsun Investments Ltd | Real estate | 2019 |
| Pagsun Limited | Hospitality | 2006 |
| Pahirst Ltd | Administrative & support | 2025 |
| Paideia Systems Ltd | Information & communication | 2013 |
| Paige Property Limited | Real estate | 2024 |
| Pain Care Clinic Limited | Other services | 2010 |
| Paint Tech Bodyshop Limited | Wholesale & retail | 2024 |
| Paintguard Limited | Professional & scientific | 2025 |
| Painthorpe (Wakefield) Management Company Limited | Real estate | 1982 |
| Pair & Simple Ltd | Wholesale & retail | 2025 |
| Pairock Group Limited | Financial services | 2025 |
| Pairock Homes Ltd | Real estate | 2025 |
| Pairock Property Management Ltd | Real estate | 2024 |
| Paisley Park Property Services Ltd | Administrative & support | 2025 |
| Paja & AJA Ltd | Transport & logistics | 2019 |
| Pajooh Properties Ltd | Real estate | 2023 |
| PAK Building Services Ltd | Construction | 2023 |
| PAK Catering (Birmingham) Limited | Hospitality | 2021 |
| PAK Hills Limited | Real estate | 2022 |
| PAK Projects Limited | Professional & scientific | 2011 |
| Pakistan Forward | Arts & recreation | 2008 |
| PAL (2112) Realisations Limited | Energy | 1979 |
| PAL CH Realisations 2007 Limited | Energy | 1995 |
| PAL House Ltd | Hospitality | 2022 |
| Palagander Limited | Hospitality | 2014 |
| Pale EGG Ltd | Professional & scientific | 2016 |
| Paleo Care Limited | Health & social care | 2023 |
| Palfreman Trading Ltd | Information & communication | 2019 |
| Palhall Limited | Extraterritorial | 2020 |
| Palio (NO 1) Limited | Administrative & support | 2010 |
| Palio (NO 13) Limited | Administrative & support | 2011 |
| Palio (NO 14) Limited | Administrative & support | 2011 |
| Palio (NO 15) Limited | Administrative & support | 2011 |
| Palio (NO 16) Limited | Administrative & support | 2011 |
| Palio (NO 17) Limited | Administrative & support | 2011 |
| Palio (NO 18) Limited | Administrative & support | 2011 |
| Palio (NO 19) Limited | Administrative & support | 2011 |
| Palio (NO 7) Limited | Administrative & support | 2010 |