| Owlcourt Limited | Hospitality | 1999 |
| P & P Auto Sales Ltd | Wholesale & retail | 2026 |
| P J Aiken Limited | Financial services | 2005 |
| P L Richards Limited | Manufacturing | 2007 |
| P Y Imports Limited | Wholesale & retail | 2004 |
| P&S Motorsport & Car Accessories Limited | Wholesale & retail | 2004 |
| P.B.T. International Limited | Administrative & support | 1984 |
| Padfield IT Services Limited | Information & communication | 2019 |
| Palmer's Garage (Burnham) Limited | Extraterritorial | 1959 |
| Palmers Garage (Exmouth) Limited | Real estate | 1963 |
| PAN Properties SW Ltd | Real estate | 2020 |
| Pang Investments Limited | Construction | 1993 |
| Pang Properties Limited | Construction | 1987 |
| Pareto Analysis Ltd. | Professional & scientific | 1997 |
| Park House Management Company (Taunton) Limited | Real estate | 1989 |
| Paropet Ltd | Wholesale & retail | 2026 |
| Parrett Ingredients Limited | Manufacturing | 1994 |
| Parsons Motorcycles Limited | Wholesale & retail | 2004 |
| PAT Kelly (Machine Rentals) Limited | Real estate | 1964 |
| Paul Buxton Limited | Construction | 2007 |
| Paul Channon Construction Limited | Construction | 1999 |
| Paul Dance Limited | Professional & scientific | 2003 |
| Paull & Company Limited | Construction | 1906 |
| PB Abbey Ltd | Construction | 2013 |
| PB Jetting Limited | Administrative & support | 2007 |
| Peace KS Limited | Hospitality | 2023 |
| Peak Builders Merchants (H.I.C.) Limited | Real estate | 1983 |
| Pearsalls Limited | Manufacturing | 1999 |
| Pembroke Management Company (Yeovil) Limited | Extraterritorial | 2007 |
| PEN Mill Hotel Limited | Hospitality | 2003 |
| Pennard Cabins Limited | Real estate | 2007 |
| Penny Lane Holdings Ltd | Manufacturing | 2002 |
| Perform Bath Ltd | Arts & recreation | 2025 |
| Peter Douglas of Wells Limited | Wholesale & retail | 2002 |
| Peter Moore Properties Limited | Manufacturing | 1973 |
| Phantom Moon Ltd | Wholesale & retail | 2004 |
| Phil Bull Automation Limited | Construction | 2006 |
| Philip Odam Agricultural Services Limited | Agriculture & fishing | 2006 |
| Phoenix Design Partnership Limited | Construction | 2007 |
| Phoenix Optical Holdings Limited | Manufacturing | 2017 |
| Phoenix Optical Technologies Limited | Manufacturing | 2004 |
| Pier IT Limited | Information & communication | 2004 |
| Pinkart UK Limited | Wholesale & retail | 2007 |
| Pizza EL Chapo Ltd | Hospitality | 2025 |
| PJ Gould Transport Limited | Transport & logistics | 2003 |
| PJP Developments Limited | Construction | 2005 |
| Plantscaping and Design (South) Limited | | 1984 |
| Planus Geometry Ltd | Construction | 2023 |
| Plastiglass Prescription Services Limited | | 1980 |
| Pleroma Investments | Real estate | 1952 |
| Polden Hills Veterinary Centre Ltd | Professional & scientific | 2009 |
| Pomphrey & Sons Developments Limited | Real estate | 2007 |
| Pomphrey & Sons Limited | Other services | 1973 |
| Porlock Vale House | | 1996 |
| Positive Wealth Creation Ltd | Financial services | 2003 |
| Power Factor Improvements Limited | Other services | 1994 |
| Premier Properties (1942) Limited | Real estate | 1999 |
| Present Company Limited | Wholesale & retail | 2002 |
| Prestige Panels Ltd. | | 1990 |
| Preston Electronics (Chard) Limited | Manufacturing | 1989 |
| Priceportas Ltd | Professional & scientific | 2020 |
| Prickly Pear Market Garden Ltd | Agriculture & fishing | 2023 |
| Prideaux (Langport) Limited | Agriculture & fishing | 1936 |
| Priory Lodge Taunton (Management Company) Limited | Hospitality | 1982 |
| Priory Mews Limited | Households | 1990 |
| Private Healthcare Solutions Limited | Health & social care | 2006 |
| Projec-Technique Investments Limited | Construction | 2003 |
| Projec-Technique Limited | Administrative & support | 2001 |
| Prolific Solutions (South West) Ltd | Wholesale & retail | 2012 |
| Property SW Ltd | Real estate | 2023 |
| Prova Motorsport Limited | Arts & recreation | 2002 |
| PRT Industrial Pipefitters Limited | Administrative & support | 2000 |
| PSP Plant Services Limited | Manufacturing | 2003 |
| Publicservice@Heart Limited | Professional & scientific | 2006 |
| Purnell Engineering Design Ltd | Professional & scientific | 1999 |
| Pyman Estimates Limited | Financial services | 2024 |
| Quick & Sons Farm Limited | Agriculture & fishing | 1985 |
| R & B Electrical Services Limited | Wholesale & retail | 2001 |
| R & S Developments (South West) Limited | Construction | 2004 |
| R a O B G L E South Somerset P G L Trust Corporation | Professional & scientific | 1969 |
| R M White Ltd | Professional & scientific | 2006 |
| R T Watts Limited | Information & communication | 2004 |
| R&R Designs Limited | Professional & scientific | 2001 |
| R. W. George Professional Decorator Limited | Construction | 2000 |
| R.A. Duckett and Company Limited | Agriculture & fishing | 1958 |
| R.H.H. Manufacturers Agents Limited | Manufacturing | 1978 |
| R.K.Bell Limited | Administrative & support | 1957 |
| R.M. Cameron Environmental Services Limited | Professional & scientific | 1998 |
| R.W. Shakespeare Limited | Real estate | 1985 |
| Rainbows END Cafe Ltd | Hospitality | 2006 |
| Rapid Engraving Company Limited | Real estate | 1930 |
| RC EKA Ltd | Professional & scientific | 1984 |
| Rebac Properties Limited | Real estate | 1983 |
| Rebcourt Limited | Construction | 1993 |
| Rectory Court (Somerset) Limited | Households | 2001 |
| Red Sky Computing Limited | Information & communication | 2001 |
| Red Winches Limited | Professional & scientific | 2014 |
| Redlynch Agricultural Engineering Limited | Wholesale & retail | 1997 |
| Redwood Computer Systems Limited | Hospitality | 1986 |
| Remedial Therapies Centre Ltd | Health & social care | 2018 |