| Play Station Nursery Limited | Education | 2009 |
| Play Well for Life Ltd | Manufacturing | 2019 |
| Playa Consulting Limited | Administrative & support | 2026 |
| Playaway Preschool Limited | Education | 2011 |
| Playback Arcade Limited | Arts & recreation | 2023 |
| Playball Bristol Limited | Arts & recreation | 2021 |
| Player Higgins Property Ltd | Real estate | 2024 |
| Players & Sons Limited | Manufacturing | 2018 |
| Players Close Management Company Limited | Households | 2022 |
| Players Court Ltd | Construction | 2017 |
| Players Court Management Limited | Real estate | 2020 |
| Playfi Limited | Extraterritorial | 2025 |
| Playful Penguins Ltd | Administrative & support | 2012 |
| Playground Coffee Company Limited | Hospitality | 2016 |
| Playground Property Company Limited | Hospitality | 2013 |
| Playing OUT C.I.C. | Health & social care | 2011 |
| Playsprouts Ltd | Wholesale & retail | 2020 |
| PLAYTIME236 Limited | Households | 2021 |
| Pldev Studio Ltd | Information & communication | 2018 |
| Pleasure & Leisure Inflatables Limited | Extraterritorial | 1975 |
| Pleat Medical and Surgical Services Ltd | Health & social care | 2023 |
| Plebes Urbana Limited | Arts & recreation | 2011 |
| Plegia Master Services Ltd | Health & social care | 2025 |
| Pleiade Associates Limited | Professional & scientific | 1990 |
| Plene AI Ltd | Information & communication | 2019 |
| Plene Architecture Limited | Information & communication | 2015 |
| Plene Resource Limited | Professional & scientific | 2016 |
| Plentiful Planet Ltd | Professional & scientific | 2022 |
| Plentiful Properties Limited | Real estate | 2024 |
| Plenty of KOI (Bristol) Limited | Agriculture & fishing | 2022 |
| PLF Property Services Ltd | Financial services | 2022 |
| Pliahurst Limited | Other services | 2009 |
| Plimsoll Computers PLC | | 1982 |
| Pliner LP | | 2013 |
| Plinth Media Ltd | Arts & recreation | 2016 |
| PLM Events Limited | Arts & recreation | 2018 |
| Plonk'D Cornwall Limited | Hospitality | 2023 |
| Plot 1 Bsl-Pm Ltd | Real estate | 2025 |
| Plot 17 Limited | Construction | 2022 |
| Plot 8200 Gloucester Business Park Management Company Limited | Real estate | 2004 |
| Plot Investments Limited | Real estate | 2021 |
| Plot Property Ltd | Real estate | 2020 |
| Plot Studio Limited | Professional & scientific | 2007 |
| Plough and Windmill Limited | Real estate | 2016 |
| Plum Retail Limited | Wholesale & retail | 2015 |
| Plum Technologies Limited | Extraterritorial | 2009 |
| Plumb Construction Limited | Construction | 2015 |
| Plumb-Eco Plumbing and Heating Services Ltd | Construction | 2022 |
| Plumbco Heating Ltd. | Construction | 2017 |
| Plumbcom Limited | Administrative & support | 2025 |
| Plumbdec Limited | Construction | 2024 |
| Plumber Bristol Ltd | Construction | 2024 |
| Plumbforce SW Ltd | Construction | 2020 |
| Plumbing Trade Partners Ltd | Information & communication | 2025 |
| Plumbob Maintenance Ltd | Construction | 2022 |
| Plumboz Ltd | Construction | 2024 |
| Plumbpal Innovations Limited | Construction | 2017 |
| Plumbr (Bristol) Ltd | Construction | 2022 |
| Plumbsafe Renewable Group Ltd | Construction | 2026 |
| Plumbshop Ltd | Construction | 2023 |
| Plumbtec (South West) Limited | Construction | 1999 |
| Plume Ltd | Information & communication | 2014 |
| Plumestic Sales Ltd | Wholesale & retail | 2025 |
| Plumley & Co Ltd | Real estate | 2021 |
| Plumley Trustees Ltd | Professional & scientific | 2023 |
| Plummer Search Limited | Administrative & support | 2024 |
| Plumtree Restorative Care Ltd | Health & social care | 2025 |
| Pluri Procurement Ltd | Other services | 2025 |
| Plus Networks Ltd | Information & communication | 2018 |
| Plus Services (UK) Limited | Construction | 2011 |
| Plusmedia Limited | Professional & scientific | 2025 |
| Pluto Enterprises Limited | Transport & logistics | 2013 |
| Pluvia (London) Limited | Professional & scientific | 2015 |
| Plymouth Appliance Testing Ltd | Extraterritorial | 2020 |
| Plymouth City Centre Company Limited | Administrative & support | 2004 |
| Plymouth School of Flying Limited | Education | 1991 |
| Plymouth Smoke and Vape Ltd | Wholesale & retail | 2022 |
| Plymouth Ultrasound Limited | Health & social care | 2025 |
| PM Care Services Ltd | Health & social care | 2015 |
| PM Green Limited | Other services | 2011 |
| PM Land & Development Ltd | Real estate | 2022 |
| PM Pipe Fitting Services Limited | Construction | 2010 |
| PM Plant Hire (SW) Limited | Water & waste | 2013 |
| PM South West Holdings Limited | Financial services | 2017 |
| PM Telecoms (Bristol) Ltd | Information & communication | 2019 |
| PM Windows, Doors & Conservatories Ltd | Construction | 2023 |
| Pmad Ltd | Construction | 2017 |
| Pmal Property Ltd | Real estate | 2023 |
| Pman Films Ltd | Information & communication | 2025 |
| Pmbc Limited | Professional & scientific | 2012 |
| PMC Clifton Development Ltd | Information & communication | 2019 |
| PMD Roofing & Building Ltd | Construction | 2015 |
| PME Power Developments Ltd | Professional & scientific | 2007 |
| Pment Ltd | Wholesale & retail | 2025 |
| PMG (UK) Ltd | Hospitality | 2002 |
| Pmgm Property Ltd | Real estate | 2024 |
| PMH Distribution Limited | Wholesale & retail | 2013 |
| PMI Contracts Ltd | Construction | 2017 |
| PMI Group Ltd | Real estate | 2006 |
| PMK Consult Ltd | Professional & scientific | 2012 |