| Peak Rigging Limited | Construction | 2026 |
| Peaky Builders (Bath) Limited | Construction | 2019 |
| Pegasus Equine Trading Ltd | Wholesale & retail | 2024 |
| Pencil Studio Ltd. | Administrative & support | 2009 |
| Penny Cook Recruitment Ltd | Administrative & support | 2011 |
| Pennys Holdings Ltd | Financial services | 2022 |
| Penrallt Property Ltd | Real estate | 2024 |
| People First Finance Ltd | Financial services | 2024 |
| Pest Solutions South West Ltd | Administrative & support | 2022 |
| Pete King Contracting Limited | Water & waste | 2022 |
| Pete Mitchard Plastering Ltd | Construction | 2009 |
| Peter Coombs Gardens Limited | Agriculture & fishing | 1976 |
| Pharmaxchange Ltd | Wholesale & retail | 2023 |
| Phase 65 Limited | Professional & scientific | 2019 |
| Phatz Ltd | Hospitality | 2022 |
| Phil Monica Ltd | Transport & logistics | 2018 |
| Phil Monica Maintenance Services Ltd | Construction | 2025 |
| Philippa House (Bath) Limited | Households | 1981 |
| Philola Property Ltd | Real estate | 2024 |
| Phoenix Community Magazine CIC | Information & communication | 2023 |
| Physics Online Ltd | Education | 2017 |
| Physio West Ltd | Other services | 2023 |
| Pickford Fields Management Limited | Households | 2020 |
| Picture Post Limited | Professional & scientific | 1994 |
| Pierre Radstock Ltd | Hospitality | 2021 |
| Pilea Plant Shop Ltd | Wholesale & retail | 2019 |
| Pinewood Developments Somerset Ltd | Real estate | 2023 |
| Pinnacle Construction Group Limited | Construction | 2019 |
| Pithay Management Company Limited | Professional & scientific | 2013 |
| PL Advice Limited | Financial services | 2019 |
| PL Lettings Ltd | Real estate | 2022 |
| Planet Building Control Limited | Construction | 2024 |
| Planet Volt Limited | Arts & recreation | 2026 |
| Planning Developments Limited | Professional & scientific | 2017 |
| Planning Heritage Limited | Professional & scientific | 2013 |
| Plant-Tech Ltd | Manufacturing | 2023 |
| Plato Property Limited | Real estate | 2016 |
| PLF Lettings Ltd | Real estate | 2025 |
| PMR Consultancy Ltd | Professional & scientific | 2021 |
| Polyserv Enterprise Ltd | Hospitality | 2019 |
| Pond Cottages Residents Association Limited | Real estate | 1974 |
| Poppies of Paulton Limited | Wholesale & retail | 2007 |
| Posh Loos for Posh Doos Ltd | Administrative & support | 2023 |
| Positive Skin Ltd | Other services | 2023 |
| Poultney Homes Limited | Real estate | 2024 |
| Powell & Powell (Bath) Limited | Administrative & support | 1932 |
| Power UP Product Ltd | Information & communication | 2024 |
| PP02 Solutions Ltd | Professional & scientific | 2021 |
| Practice Plan for Professionals Limited | Administrative & support | 2000 |
| Pratten Terrace Management Company Ltd | Real estate | 2008 |
| PRB Plumbing Services Limited | Construction | 2024 |
| Premier Plumbing & Heating Supplies Ltd | Wholesale & retail | 1998 |
| Prestige Chauffeur Hire (South West) Limited | Transport & logistics | 2010 |
| Prestige Chauffeur Hire UK Ltd | Transport & logistics | 2021 |
| Prestige Electrical Services (Bath) Limited | Construction | 2007 |
| Prestige Music (Worldwide) Limited | Wholesale & retail | 2018 |
| Pretty Whitty Ltd | Other services | 2025 |
| Pricelis Art Limited | Administrative & support | 2005 |
| Pride & Groom (West) Limited | Other services | 2019 |
| Pride and Groom Trowbridge Ltd | Other services | 2024 |
| Primaorb Limited | Wholesale & retail | 2016 |
| Prime Life Clinic Ltd | Health & social care | 2024 |
| Prime Medical Systems Ltd | Manufacturing | 2025 |
| Primetools Limited | Wholesale & retail | 2003 |
| Primrose Garden Maintenance Limited | Administrative & support | 2012 |
| Print Consultancy Services Limited | Professional & scientific | 2005 |
| Print for Business Limited | Extraterritorial | 1992 |
| Pro Assist Financial Limited | Professional & scientific | 2024 |
| Pro-Coaching Education Limited | Education | 2020 |
| Pro-Coaching Limited | Arts & recreation | 2007 |
| Pro-Coaching Northwest Limited | Education | 2026 |
| Pro-Coaching SW Limited | Education | 2023 |
| Pro-Coaching West Limited | Education | 2024 |
| Proform Limited | Extraterritorial | 1989 |
| Programme Control Solutions Limited | Professional & scientific | 2009 |
| Project Renovate Limited | Real estate | 2019 |
| Property Booking Hub Limited | Households | 2010 |
| Property Clearance & Probate Solutions Ltd | Real estate | 2021 |
| Property Maintenance and Improvements Ltd | Real estate | 2020 |
| Property Potential UK Limited | Construction | 2005 |
| Property Trading Lettings Ltd | Real estate | 2021 |
| Property Trading Ltd | Real estate | 1998 |
| Protection Cleaning Services Limited | Administrative & support | 2020 |
| Prowheels Bath Limited | Construction | 2023 |
| PRW Group Limited | Energy | 2000 |
| Ptpm Limited | Wholesale & retail | 2015 |
| Pumps and Plates Coaching Ltd | Health & social care | 2024 |
| Purcell Media Ltd | Information & communication | 2022 |
| Pure Footcare Limited | Manufacturing | 2024 |
| Purple Plan-It Limited | Professional & scientific | 2012 |
| Quality Assured Cars Ltd | Wholesale & retail | 2016 |
| R & K Properties (SW) Ltd | Construction | 2014 |
| R and M Integrated Consultancy Ltd | Health & social care | 2009 |
| R B Groundworks Limited | Other services | 2014 |
| R&M Stewart Properties Ltd | Real estate | 2025 |
| R&R Associates (UK) Ltd | Professional & scientific | 2013 |
| R.H. Windows Limited | Construction | 1982 |
| R.S.K.Express Ltd | Transport & logistics | 2021 |
| R.W. & D. Lambert Ltd | Transport & logistics | 2003 |
| R.W.A Heating Ltd | Construction | 2018 |