| Phrec Ltd | Administrative & support | 2019 |
| PIC2TAC CIC | Information & communication | 2024 |
| Picante Properties Limited | Real estate | 2025 |
| Piccadilly House Management Company Limited | Administrative & support | 2004 |
| Pickering Medical Services Ltd | Health & social care | 2021 |
| Pickwick Properties Limited | Real estate | 2023 |
| Picnic Coffee Limited | Wholesale & retail | 2012 |
| Picture This Easy Read Service Ltd | Education | 2025 |
| PIE Communications Ltd | Professional & scientific | 2019 |
| Piers Thorogood Ltd | Information & communication | 2024 |
| Pilotis Limited | Professional & scientific | 2009 |
| Pimbury Equine UK Ltd | Agriculture & fishing | 2024 |
| Pime Services Ltd | Health & social care | 2012 |
| Pinder Enterprises Limited | Administrative & support | 2017 |
| Pinfact Productions Limited | Professional & scientific | 2020 |
| Pink Fuelled Limited | Wholesale & retail | 2023 |
| Pink Sky Group Ltd | Administrative & support | 2026 |
| Pintale Ltd | Information & communication | 2023 |
| Piota Limited | Wholesale & retail | 1999 |
| Pippa Rose Lifestyle Ltd | Hospitality | 2018 |
| PITCH26 Limited | Professional & scientific | 2023 |
| Pitt House (Bath) Limited | Other services | 1949 |
| Pixel Diagnostics Limited | Professional & scientific | 2014 |
| Pixel Jungle Ltd | Information & communication | 2011 |
| Pixel Pioneers Limited | Information & communication | 2016 |
| PIZZA1889SQ Ltd | Hospitality | 2026 |
| Pizzeria Amici Limited | Hospitality | 2004 |
| PJ (Charlton) Limited | Financial services | 2018 |
| PJH Building Contractors (Bristol) Limited | Construction | 2010 |
| PJI (Somerset) Limited | Financial services | 2014 |
| PJMC2 Limited | Information & communication | 2012 |
| Place Base Limited | Professional & scientific | 2025 |
| Place for Nature Limited | Information & communication | 2021 |
| Planet Earth Limited | Professional & scientific | 1999 |
| Planningsphere Holdings Limited | Financial services | 2019 |
| Planningsphere Limited | Professional & scientific | 2013 |
| Plastic Moulding Corporation Ltd | Manufacturing | 2016 |
| Platform Technology Limited | Construction | 2001 |
| Platinum Pet Food & Care Ltd | Wholesale & retail | 2013 |
| Play Build Play CIC | Professional & scientific | 2020 |
| Play Snooker Limited | Arts & recreation | 2025 |
| Play Sports Network Limited | Information & communication | 2012 |
| Playright Limited | Professional & scientific | 1997 |
| Plerith Associates Ltd | Professional & scientific | 2024 |
| Plerith Limited | Professional & scientific | 2012 |
| Plummer Company Limited | Professional & scientific | 2019 |
| Plymouth House Offices Limited | Real estate | 2015 |
| PM Trustee Company Limited | Professional & scientific | 2003 |
| PMC (SW) Ltd | Construction | 2023 |
| PMF Investments Limited | Real estate | 2005 |
| Pmmr Developments Limited | Construction | 2014 |
| Pmmr Limited | Real estate | 2009 |
| PNJ Carter-Green Ltd | Real estate | 2014 |
| Pocket Escapes Ltd | Real estate | 2024 |
| Pococks Assets Limited | Hospitality | 2019 |
| Podium Technology Limited | Information & communication | 2002 |
| Poetic Computation Ltd | Information & communication | 2016 |
| Pogo Engineering & Consulting Ltd | Manufacturing | 2025 |
| Poignard Properties Limited | Extraterritorial | 2020 |
| Poloko Ltd | Arts & recreation | 2025 |
| Polpo Media Limited | Professional & scientific | 2020 |
| Polska Szkola IM Fryderyka Chopina T/A Frederic Chopin Polish School CIC | Education | 2021 |
| Polurrian Villa 5 Limited | Hospitality | 2022 |
| Polymathic Ltd | Information & communication | 2024 |
| Polzen Ltd | Wholesale & retail | 2021 |
| POM Design Limited | Information & communication | 2007 |
| Pong Cheese Ltd | Wholesale & retail | 2008 |
| Ponte Vecchio Restaurant Limited | Hospitality | 2019 |
| POP UP Valet Ltd | Wholesale & retail | 2020 |
| Pop-Up Games Limited | Other services | 2022 |
| Popin & Popout Ltd | Wholesale & retail | 2026 |
| Porridge United Limited | Wholesale & retail | 2025 |
| Port DE Barre Limited Partnership | | 2016 |
| PORTAL47 Ltd | Information & communication | 2008 |
| Portals Paper Limited | Manufacturing | 2017 |
| Porter Design Limited | Information & communication | 1997 |
| Porter Juris Strategy Ltd | Professional & scientific | 2026 |
| Portera UK Ltd | Information & communication | 2018 |
| Portera Ventures Ltd | Information & communication | 2018 |
| Portico Business Services Limited | Wholesale & retail | 1990 |
| Portico Designs Limited | Wholesale & retail | 2008 |
| Portland Place Bath Management Limited | Households | 1989 |
| Portman Media Limited | Professional & scientific | 2012 |
| Portobello PUB Company Limited | Hospitality | 2023 |
| Portobello Starboard Limited | Hospitality | 2021 |
| Portomaso Limited | Real estate | 2020 |
| Poseidon Property Group Limited | Real estate | 2022 |
| Posh and Mumbles Limited | Hospitality | 2020 |
| Posh Tarts & Patisserie Limited | Hospitality | 1991 |
| Positive Performance Ltd | Administrative & support | 2021 |
| Post Local News Ltd | Information & communication | 2021 |
| Posterum Ltd | Professional & scientific | 2019 |
| Potticks Pigs Limited | Agriculture & fishing | 1979 |
| Powell Inns Ltd | Hospitality | 2012 |
| Power Agency Limited | Wholesale & retail | 2004 |
| Powerhydrant Europe Limited | Extraterritorial | 2020 |
| Powlett Court (Bath) Ltd | Households | 2020 |
| PP Challenge Limited | Administrative & support | 2002 |
| Practical Financial Planning Ltd. | Financial services | 2010 |
| Practically Essential Consulting Ltd | Construction | 2024 |