| Philhill Building Contractors Limited | Construction | 2019 |
| Philip Bourne Limited | Wholesale & retail | 2008 |
| Philip Clamp ENT Ltd | Health & social care | 2023 |
| Philip Jefferies Limited | Financial services | 2010 |
| Philip Kydd Limited | Manufacturing | 2005 |
| Philip Peregreen Consultancy Limited | Construction | 2015 |
| Philip Priest Wealth Management Limited | Financial services | 2020 |
| Philip Roys Limited | Health & social care | 2013 |
| Philippa Bayley Consulting Ltd | Professional & scientific | 2025 |
| Philippa Floyd Ltd | Health & social care | 2026 |
| Philippa Hann Consulting Limited | Professional & scientific | 2023 |
| Phillim LP | | 2013 |
| Phillip J Dolman Ltd | Professional & scientific | 2018 |
| Phillips & Green Ltd | Real estate | 2019 |
| Phillips Design Consultants Limited | Professional & scientific | 2024 |
| Phillips Engineering Services (Bristol) Ltd | Construction | 2014 |
| Phillips Mechanical Contractors Ltd | Construction | 2026 |
| Phillips Studio Limited | Manufacturing | 2017 |
| Phillips Tippers Limited | Transport & logistics | 2020 |
| Philliskirk Ltd | Real estate | 2024 |
| Phillmc's Heating and Plumbing Limited | Construction | 2023 |
| Philomina Ltd | Professional & scientific | 2013 |
| Philosophy Audio Limited | Information & communication | 2006 |
| Philpott & Cowlin Limited | Wholesale & retail | 1952 |
| Philrose Services Limited | Education | 1996 |
| Phineas Group (International) Limited | Wholesale & retail | 2005 |
| Phineas Group (UK) Limited | Wholesale & retail | 1984 |
| Phineas Group Trading Ltd | Wholesale & retail | 2026 |
| Phipps Crane Operation Limited | Construction | 2016 |
| Phisec Ltd | Information & communication | 2015 |
| Phisele Ltd | Construction | 2015 |
| Phlare Ltd | Real estate | 2022 |
| Phlebo Mobile Service Ltd | Health & social care | 2022 |
| Phlox LP | | 2015 |
| PHO Lounge Limited | Hospitality | 2018 |
| Phoenix (Filton) Management Company Limited | Administrative & support | 2006 |
| Phoenix 51 Limited | Professional & scientific | 2019 |
| Phoenix Air Conditioning Services Limited | Construction | 2006 |
| Phoenix and Fire Ltd | Wholesale & retail | 2021 |
| Phoenix Bar Limited | Hospitality | 2001 |
| Phoenix Bristol Limited | Hospitality | 2010 |
| Phoenix Cargo Services Limited | Transport & logistics | 2013 |
| Phoenix Coffee & Equipment Limited | Wholesale & retail | 2019 |
| Phoenix Construction Solutions Limited | Professional & scientific | 2023 |
| Phoenix Consulting Pcuk Ltd | Professional & scientific | 2023 |
| Phoenix Contractors Ltd | Construction | 2014 |
| Phoenix Developments (Avon) Ltd | Administrative & support | 2001 |
| Phoenix Floor Maintenance Equipment Limited | Other services | 1987 |
| Phoenix Group (SW) Limited | Real estate | 2016 |
| Phoenix House (Bristol) Management Company Limited | Real estate | 2011 |
| Phoenix Hovercraft Ltd | Arts & recreation | 2026 |
| Phoenix Imports Ltd | Wholesale & retail | 2022 |
| Phoenix Inspire Ltd | Health & social care | 2025 |
| Phoenix Life and Wellbeing Coaching Ltd | Education | 2017 |
| Phoenix Manufacturing Limited | Manufacturing | 2010 |
| Phoenix Metal Products Limited | Manufacturing | 1993 |
| Phoenix NC Ltd | Professional & scientific | 2022 |
| Phoenix Operations Consulting Limited | Professional & scientific | 2006 |
| Phoenix Play Limited | Construction | 2013 |
| Phoenix Project Controls Limited | Professional & scientific | 2022 |
| Phoenix Recording Systems Limited | Manufacturing | 2014 |
| Phoenix Scaffolding Bristol Limited | Construction | 2026 |
| Phoenix Social Enterprise Limited | Other services | 1997 |
| Phoenix Specialist Products Limited | Manufacturing | 2009 |
| Phoenix Systems Engineering Limited | Professional & scientific | 2024 |
| Phoenix Talent Ltd | Professional & scientific | 2024 |
| Phoenix Technical Solutions Limited | Information & communication | 2005 |
| Phoenix Therapeutic Support UK Ltd | Health & social care | 2023 |
| Phoenix Visions Ltd | Financial services | 2016 |
| Phoenix Way (Portishead) Management Company Limited | Households | 2005 |
| Phoenix Wiley Limited | Information & communication | 2004 |
| Phone Craft Ltd | Wholesale & retail | 2024 |
| Phone Craze Limited | Wholesale & retail | 2010 |
| Phone Tech Central Ltd | Wholesale & retail | 2018 |
| Phonect Ltd | Wholesale & retail | 2022 |
| Phoneshopbristol Limited | Wholesale & retail | 2023 |
| PHONESHOPBRISTOL2 Limited | Wholesale & retail | 2023 |
| Phononemal Limited | Administrative & support | 2010 |
| Phontok Ltd | Professional & scientific | 2016 |
| Phosphorix Limited | Information & communication | 2001 |
| Photo Heads Limited | Professional & scientific | 2013 |
| Photodevelopmentbristol Limited | Professional & scientific | 2025 |
| Photographique Ltd | Professional & scientific | 2023 |
| Photon Technologies Limited | Administrative & support | 2023 |
| Photosymbols Limited | Education | 2004 |
| Phrenésia Ltd | Professional & scientific | 2025 |
| Phronesis Imaging Limited | Health & social care | 2023 |
| PHS (Bristol) Limited | Professional & scientific | 2019 |
| Phumz Logistics Limited | Transport & logistics | 2026 |
| Phuture Traxx Ltd | Professional & scientific | 2021 |
| Physical Creation Limited | Information & communication | 2024 |
| Physics Partners Limited | Education | 2007 |
| Physio Excellence Limited | Health & social care | 2026 |
| Physio Flow Yoga Ltd | Arts & recreation | 2021 |
| Physio for Women Ltd | Extraterritorial | 2013 |
| Physioelite Limited | Arts & recreation | 2001 |
| Physionet Bristol Ltd | Health & social care | 2016 |
| Phytex Limited | Professional & scientific | 2005 |
| Phytowell Ltd | Manufacturing | 2019 |
| PI Loss Adjusting Ltd | Financial services | 2023 |