| PG Aurus Holdings Limited | Financial services | 2026 |
| PG Control Holdings Limited | Financial services | 2025 |
| PG Lift Holdings Limited | Financial services | 2025 |
| PG MJP UK Holdings Limited | Financial services | 2025 |
| PG Secure Holdings Limited | Financial services | 2025 |
| PG Sherlock Holdings Limited | Financial services | 2026 |
| PG Sierra Holdings Limited | Financial services | 2025 |
| PG Tamworth Management Company Limited | Real estate | 2017 |
| PG Trees Ltd | Administrative & support | 2020 |
| PGL Media Ltd | Information & communication | 2010 |
| PGS Cbel (UK) Ltd | Transport & logistics | 2021 |
| PGT Financial Services Holdings Limited | Financial services | 2025 |
| PGT Financial Services Limited | Financial services | 2025 |
| PGT Student Living Limited | Financial services | 2023 |
| PH (Management Services) Ltd | Administrative & support | 2014 |
| PH CONTRACTORS1 Ltd | Construction | 2026 |
| PH Racking & Shelving Ltd | Construction | 2023 |
| PHA Capital Holdings Limited | Real estate | 2024 |
| Phakey Group Holdings Ltd | Financial services | 2023 |
| Phalanx Projects Ltd | Professional & scientific | 2016 |
| Phantom Joinery and Developments Limited | Construction | 2023 |
| Phantom Key Ltd | Information & communication | 2013 |
| Phantom Lifestyle Management Limited | Administrative & support | 2015 |
| Phantomcardsuk Ltd | Wholesale & retail | 2022 |
| Pharm Locum Services Ltd | Health & social care | 2022 |
| Pharma Box Holdings Ltd | Financial services | 2024 |
| Pharma Box Ltd | Health & social care | 2015 |
| Pharma Choice Aspley Ltd | Wholesale & retail | 2025 |
| Pharma Choice Pilsley Ltd | Wholesale & retail | 2025 |
| Pharma Choice Rise Park Ltd | Wholesale & retail | 2025 |
| Pharma Consultancy Limited | Professional & scientific | 2022 |
| Pharma NET Solutions Limited | Information & communication | 2013 |
| Pharma Prop Holdings Ltd | Financial services | 2025 |
| Pharma-Aaa Ltd | Professional & scientific | 2026 |
| Pharmabul Ltd | Wholesale & retail | 2022 |
| Pharmaease Ltd | Health & social care | 2024 |
| Pharmagiant Ltd | Professional & scientific | 2019 |
| Pharmanostix Ltd | Wholesale & retail | 2020 |
| Pharmasci Consulting Ltd | Professional & scientific | 2015 |
| Pharmaseal International Limited | Information & communication | 2016 |
| Pharmazek Ltd | Manufacturing | 2024 |
| Pharmed Consulting Limited | Other services | 2017 |
| Pharmie Ltd. | Health & social care | 2023 |
| Pharmore Global Ltd | Health & social care | 2014 |
| Pharmore Grey Matter Ltd | Education | 2021 |
| Pharmqulity Ltd | Wholesale & retail | 2022 |
| Pharos Care Limited | Health & social care | 2005 |
| Pharos Social Work Hub Ltd | Professional & scientific | 2024 |
| Pharos Support Limited | Health & social care | 2008 |
| Phase Biolabs Ltd | Professional & scientific | 2020 |
| Phase Electrics Limited | Construction | 2008 |
| Phase Print Limited | Manufacturing | 2000 |
| Phat Buns (Beeston) Limited | Hospitality | 2022 |
| Phat Buns (Nottingham) Limited | Hospitality | 2021 |
| Phat Wings Ltd | Hospitality | 2026 |
| PHD (Midlands) Limited | Construction | 2010 |
| PHD Consulting Limited | Professional & scientific | 2024 |
| PHD Contracting Limited | Financial services | 2018 |
| PHD Ltd | Wholesale & retail | 2005 |
| PHD Plumbing Ltd | Construction | 2016 |
| Phenna Built Environment Limited | Financial services | 2022 |
| Phenna Certification & Compliance Limited | Financial services | 2020 |
| Phenna Group European Holdings Limited | Financial services | 2025 |
| Phenna Group Holdings Limited | Financial services | 2019 |
| Phenna Group Midco 1 Limited | Financial services | 2019 |
| Phenna Group Midco 2 Limited | Financial services | 2019 |
| Phenna Group Topco Limited | Financial services | 2019 |
| Phenna Group Treasury Limited | Financial services | 2025 |
| Phenna Infrastructure UK Limited | Financial services | 2018 |
| Phenodynamics LLP | | 2024 |
| Phenomenal Futures Community Interest Company | Health & social care | 2021 |
| Phenotypeca Limited | Professional & scientific | 2018 |
| Phexara Limited | Wholesale & retail | 2026 |
| PHF Services Limited | Administrative & support | 2003 |
| PHG Global Alliance Ltd | Professional & scientific | 2024 |
| PHG Realisation 001 Limited | | 1934 |
| PHG Trading Limited | Hospitality | 2023 |
| PHI Intelligence Ltd | Information & communication | 2025 |
| Phil Alexander Limited | Real estate | 2021 |
| Phil Congrave Limited | Transport & logistics | 2013 |
| Phil Moore Music Ltd | Arts & recreation | 2025 |
| Philip and Paul Ltd | Professional & scientific | 2023 |
| Philip David Electrical Limited | Construction | 2005 |
| Philip Davy (Barrister) Ltd | Professional & scientific | 2020 |
| Philip Dixon Associates Limited | Professional & scientific | 2002 |
| Philip Guyler Limited | Arts & recreation | 2009 |
| Philip Leeman Limited | Information & communication | 2007 |
| Philip VON Nell Wines Limited | Wholesale & retail | 2009 |
| Philip Watts Ltd | Professional & scientific | 2013 |
| Philipose Investments Ltd | Real estate | 2021 |
| Philippa Kelly Limited | Health & social care | 2021 |
| Phillimon T & C Limited | Real estate | 2017 |
| Phillip Breward Property Maintenance Ltd | Construction | 2025 |
| Phillip Simpson Financial Services Ltd | Professional & scientific | 2012 |
| Phillip Worall Electrical Services Limited | Manufacturing | 2015 |
| Phillips Brown (UK) Limited | Information & communication | 2002 |
| Phillips Fish Bar Limited | Hospitality | 2018 |
| Phillips Property Development Limited | Construction | 2023 |
| Phillips Sutton Associates Limited | Real estate | 2012 |
| Phillipson & Co. Limited | Manufacturing | 2021 |