| Parish MAG Printers Ltd | Manufacturing | 2006 |
| Patheon UK Limited | Manufacturing | 1999 |
| Paul LEO Limited | Professional & scientific | 2006 |
| PB Timber Limited | Manufacturing | 1931 |
| Perception Consulting Ltd | Professional & scientific | 2008 |
| Performance Development and Training Limited | Administrative & support | 1999 |
| Perkins Business Systems Limited | Professional & scientific | 1998 |
| Perrito Productions Limited | Information & communication | 2025 |
| Perspective Instruments Limited | Manufacturing | 2004 |
| Peter Baldwin Construction Limited | Construction | 1997 |
| Peter Martindale Conservation Limited | Professional & scientific | 2003 |
| PFB Associates Limited | Professional & scientific | 2008 |
| Philip Marsh & Company Limited | Wholesale & retail | 2005 |
| Phoenix Fast Foods Limited | Wholesale & retail | 1985 |
| Phoenix UAV Centre Ltd | Wholesale & retail | 2006 |
| Phoneme Ltd | Professional & scientific | 1997 |
| Picklewood Ltd | Extraterritorial | 1999 |
| Pink DOT Mortgages Limited | Financial services | 2007 |
| PJ Design Limited | Administrative & support | 2003 |
| Place Farm Enterprises Limited | Construction | 2005 |
| Planning and Design Limited | Professional & scientific | 2002 |
| Playhouse Services Limited | Hospitality | 1992 |
| Plug Scaffolding Ltd | Construction | 2002 |
| Plum Engineering Limited | Manufacturing | 2003 |
| Porcupine Property Limited | Real estate | 2005 |
| Positive Management Solutions Limited | Professional & scientific | 2007 |
| Positivity Limited | Administrative & support | 2006 |
| Postsoft Limited | Professional & scientific | 1988 |
| Practice Mentors Limited | Professional & scientific | 2006 |
| Prancing Horse Consulting Limited | Information & communication | 2001 |
| Primepoint Properties Ltd | Real estate | 1998 |
| Profred Partners LLP | | 2005 |
| Prospect Hospice Limited | Health & social care | 1980 |
| PTH (Property Assessments) Limited | Professional & scientific | 2003 |
| PUB Quiz Company Limited | Arts & recreation | 2018 |
| Pullen & Bull Limited | Wholesale & retail | 1986 |
| Pulse Performance Limited | Extraterritorial | 2005 |
| Purplescope Cleaning Limited | Administrative & support | 2024 |
| PWC Consulting Ltd | Administrative & support | 2024 |
| Queensway Chapel Pre-School | Education | 2003 |
| Quinton Place Management Company Ltd | Households | 2003 |
| Quotro Print Media Ltd | Manufacturing | 2019 |
| R & C Plastering Limited | Construction | 2007 |
| R G Willis Developments | | 1989 |
| R J Butler and SON | | 1998 |
| R J Trees and Hedging Limited | Agriculture & fishing | 2021 |
| R R P S Limited | Real estate | 2005 |
| R W Harford Limited | Construction | 2006 |
| R W Rendell Limited | Financial services | 2006 |
| R. Edwards & Sons (1997) Limited | Real estate | 1997 |
| R. M. Hobbs Limited | Agriculture & fishing | 2005 |
| Rambourton Limited | Water & waste | 1983 |
| Rangebourne Pet Care Limited | Wholesale & retail | 2003 |
| RAY Coggins Antiques | | 1999 |
| Rays Auto Sprays Limited | Wholesale & retail | 2020 |
| RD White Limited | Health & social care | 2006 |
| React Disaster Response Ltd | Administrative & support | 2015 |
| React Group Solutions Ltd | Administrative & support | 2018 |
| Real Life Services Limited | Administrative & support | 2004 |
| Real World Operations Limited | Professional & scientific | 2010 |
| Real World Studios Limited | Information & communication | 1985 |
| Real World Works Limited | Information & communication | 1998 |
| Recruit for Spouses Ltd | Administrative & support | 2011 |
| Red Dragon Consultancy Limited | Information & communication | 2005 |
| Reeds Hearing Care Ltd. | Health & social care | 1997 |
| Relonet Limited | Information & communication | 1999 |
| Renelec Hennion Limited | Construction | 2006 |
| Renelec Plant Hire Limited | Administrative & support | 2005 |
| Renewable Energy Vertical Axis Wind Turbines Ltd | Information & communication | 2001 |
| Resolution Design Ltd | Information & communication | 2008 |
| Retail Lighting Limited | Extraterritorial | 2001 |
| Retreat Day Spa Limited | Arts & recreation | 2003 |
| REX Singer Enterprises Limited | Wholesale & retail | 2002 |
| Reybridge Films Limited | Information & communication | 2003 |
| Rfpro Limited | Information & communication | 2007 |
| Ribera Properties Limited | Real estate | 2004 |
| Richard Stevens Motorcycles Ltd | Wholesale & retail | 2003 |
| Ridgeway Estates (Wessex) Limited | Extraterritorial | 1987 |
| Right Angle Picture Framing Limited | Wholesale & retail | 2004 |
| Rise Again Victory Ltd | Financial services | 2022 |
| River View Portfolio Ltd | Professional & scientific | 2000 |
| Riverbarn Fonthill Ltd | Hospitality | 2024 |
| RKS (Salisbury) Limited | Professional & scientific | 2004 |
| ROA Cally Services Ltd | Health & social care | 2024 |
| Robelec Limited | Construction | 2002 |
| Robert Gordon Consulting Limited | Professional & scientific | 2006 |
| Robins Building & Renovations Limited | Construction | 2002 |
| Roger Keen Farms Limited | Agriculture & fishing | 1970 |
| Rogers & Rogers Home Improvements Limited | Manufacturing | 1998 |
| Rollestone Limited | Agriculture & fishing | 2007 |
| Rolling Spider Limited | Administrative & support | 2004 |
| Romain Property Investments Limited | Professional & scientific | 1997 |
| Romfield Holdings Limited | Construction | 1963 |
| Ross Hillman Limited | Wholesale & retail | 1963 |
| Rossi Transport Ltd | Transport & logistics | 2003 |
| Royal School of Church Music(The) | Education | 1930 |
| RS Hicks Limited | Other services | 2001 |
| Rupert's Bay Limited | Information & communication | 2003 |
| S J Aplin Playgrounds Limited | Administrative & support | 2005 |
| S. T. J Hair Ltd | Wholesale & retail | 2007 |