| Phase 2 Construction Ltd | Construction | 2023 |
| Phase 2 Design & Print Limited | Professional & scientific | 2015 |
| Phase 24 Ltd | Construction | 2013 |
| Phase Alpha Ltd | Professional & scientific | 2016 |
| Phase Rotation Group Limited | Manufacturing | 2026 |
| PHASE90 Limited | Information & communication | 2014 |
| Phaseone Energy Limited | Professional & scientific | 2026 |
| Phat Arts Ltd | Arts & recreation | 2022 |
| PHB Future Homes Ltd | Real estate | 2025 |
| PHC (Headingley) Ltd | Hospitality | 2018 |
| PHD Admin Services Limited | Professional & scientific | 2025 |
| PHD Advisory Limited | Professional & scientific | 2014 |
| PHD Networks & Systems Ltd | Information & communication | 2016 |
| Phdd Ltd | Professional & scientific | 2018 |
| Phelps Case Management Consultants Ltd | Health & social care | 2020 |
| Phendow Consulting Limited | Information & communication | 2015 |
| Phendow Properties Limited | Real estate | 2019 |
| Phenology Limited | Professional & scientific | 2026 |
| Pheonix Housing Management Ltd | Households | 2025 |
| PHF Developments Limited | Real estate | 2017 |
| PHH Projects Ltd | Professional & scientific | 2020 |
| Phil Addy Associates Limited | Wholesale & retail | 1998 |
| Phil at Room 907 Ltd | Other services | 2015 |
| Phil Electrical Installation Limited | Construction | 2019 |
| Phil END Dentistry Limited | Health & social care | 2022 |
| Phil Hill Business Development Ltd | Professional & scientific | 2012 |
| Phil Media Ltd | Information & communication | 2025 |
| Phil Rushfirth Limited | Professional & scientific | 2016 |
| Phil Tarry Ltd | Professional & scientific | 2019 |
| Phil's Fish Bar and Takeaway Ltd | Hospitality | 2023 |
| Phil's Plaice Ltd | Hospitality | 2021 |
| Philani Driving School Limited | Education | 2018 |
| Philimon Jonas Events Ltd | Administrative & support | 2024 |
| Philip Conaghan Ltd | Professional & scientific | 2018 |
| Philip Dean Inns Limited | Hospitality | 2013 |
| Philip Howard Books Limited | Wholesale & retail | 1994 |
| Philip Karl Interiors Limited | Wholesale & retail | 2017 |
| Philip Myers Web (Neston) Limited | Manufacturing | 2004 |
| Philip Roberts Limited | Administrative & support | 1998 |
| Phillip Stoner Jewellery Limited | Manufacturing | 1985 |
| Phillipe's Blinds and Soft Furnishings Ltd | Wholesale & retail | 2023 |
| Phillips & BOW Ltd | Construction | 2024 |
| Phillips Fisher Consultancy Ltd | Professional & scientific | 2025 |
| Phillips Imaging Ltd | Health & social care | 2023 |
| Phillips Medical Investments Ltd | Financial services | 2026 |
| Phillips Medical Ltd | Health & social care | 2021 |
| Phillyz Smash MK Ltd | Hospitality | 2026 |
| Philosoffee Limited | Wholesale & retail | 2025 |
| Phinia Delphi Pension Trustees Limited | Professional & scientific | 2019 |
| Phinia Financial Operations UK Limited | Financial services | 2017 |
| Phinia Financial Services Apac Limited | Financial services | 2018 |
| Phinia Holding and Financing UK Limited | Professional & scientific | 2012 |
| Phinia Holdings UK Ltd | Professional & scientific | 2012 |
| Phinia Management UK Limited | Financial services | 2017 |
| Phitology Leeds Ltd | Hospitality | 2024 |
| PHL Smart Developments Ltd | Construction | 2024 |
| PHO HUE Ltd | Real estate | 2024 |
| PHO HUE Service Charge Limited | Real estate | 2025 |
| PHO Viet 68 Ltd | Hospitality | 2025 |
| PHO1 Ltd | Hospitality | 2024 |
| Phobos Limited | Information & communication | 2007 |
| Phoenix (Block a Opco) Limited | Construction | 2023 |
| Phoenix (Block B) Holdco Limited | Construction | 2024 |
| Phoenix (Block B) Limited | Construction | 2023 |
| Phoenix Alloys Yorkshire Ltd | Wholesale & retail | 2024 |
| Phoenix Aluminium Shop Fronts Ltd | Manufacturing | 2008 |
| Phoenix Bathrooms Limited | Extraterritorial | 2011 |
| Phoenix Builds Ltd | Construction | 2024 |
| Phoenix Car Sales Ltd | Wholesale & retail | 2014 |
| Phoenix Cleaning Company Limited | Administrative & support | 2018 |
| Phoenix Complete Scaffolding Limited | Construction | 2024 |
| Phoenix Components (UK) Ltd | Wholesale & retail | 2000 |
| Phoenix Construction (Teesside) Limited | Construction | 2015 |
| Phoenix Court Hotel Ltd | Hospitality | 2024 |
| Phoenix Dance Theatre | Arts & recreation | 1985 |
| Phoenix DN Limited | Education | 2015 |
| Phoenix Electrical and Security Ltd | Construction | 2025 |
| Phoenix Enterprises Limited | Real estate | 1996 |
| Phoenix Health Kare Limited | Health & social care | 2018 |
| Phoenix Joinery and Building Limited | Construction | 2025 |
| Phoenix LI Ltd | Real estate | 2011 |
| Phoenix Logistic Services Ltd | Transport & logistics | 2025 |
| Phoenix Management (Totton) LLP | | 2003 |
| Phoenix Marketing Solutions Ltd | Wholesale & retail | 2025 |
| Phoenix Plumbing and GAS Engineering Limited | Construction | 2023 |
| Phoenix Primary Care Consultancy Limited | Health & social care | 2018 |
| Phoenix Project Group Ltd | Real estate | 2026 |
| Phoenix Project Management Limited | Administrative & support | 2022 |
| Phoenix Properties (Dolly Lane) Ltd | Construction | 2020 |
| Phoenix Properties Group Limited | Construction | 2021 |
| Phoenix Roofclad (Holdings) Limited | Financial services | 2023 |
| Phoenix Roofclad Limited | Construction | 1987 |
| Phoenix Whirlpools Holdings Limited | Financial services | 2026 |
| Phoenix Whirlpools Limited | Wholesale & retail | 2001 |
| Phoenix Worldwide Ltd | Wholesale & retail | 1996 |
| Phona Ltd | Education | 2014 |
| Phone Care Bramley Limited | Wholesale & retail | 2023 |
| Phone for ME (Leeds) Limited | Wholesale & retail | 2015 |
| Phone for YOU Limited | Wholesale & retail | 2017 |
| Phone Plus Leeds Limited | Wholesale & retail | 2019 |