| Proof Songs Limited | Information & communication | 2004 |
| Property Box Lettings Ltd | Real estate | 2020 |
| Property Management Cotswolds Ltd | Hospitality | 2022 |
| Propertybox Investments Limited | Real estate | 2006 |
| Proposito Financial Planning Limited | Financial services | 2011 |
| Protectia Consulting Ltd | Professional & scientific | 2023 |
| Prothom Ltd | Real estate | 2021 |
| Protocus Ltd | Information & communication | 2010 |
| Proview Sports Limited | Education | 2015 |
| PRR Management Consultancy Ltd | Administrative & support | 2014 |
| Psalds Ltd | Households | 2026 |
| Psychiatric Consultancy Services Limited | Health & social care | 2001 |
| Psychiatric Consultations Ltd | Health & social care | 2017 |
| Publica Group ( Support) Limited | Public administration | 2017 |
| Puffin Story Co Ltd | Wholesale & retail | 2026 |
| Purdy's Pet Services Ltd | Other services | 2016 |
| Pure Reds Hair Limited | Other services | 2023 |
| Pure Sereniti Ltd | Other services | 2008 |
| Purepower (West Berkshire) Limited | | 2009 |
| Purepower Asset Management Limited | | 2006 |
| Purley Court Management Limited | Extraterritorial | 1996 |
| Puss in Boots Nursery School Limited | Education | 2009 |
| Puwersafe Limited | Extraterritorial | 2025 |
| PVH Hire Ltd | Administrative & support | 2025 |
| PWB Accountancy Services Ltd | Professional & scientific | 1997 |
| PWB Accountants Limited | Extraterritorial | 2015 |
| PWD Studio Ltd | Professional & scientific | 2022 |
| PWF Property Ltd | Extraterritorial | 2016 |
| PWS Asset Holdings Limited | Real estate | 2024 |
| Q47 Ltd | Information & communication | 2016 |
| Qatalyst Finance Limited | Professional & scientific | 2012 |
| QR PAY Ltd | Information & communication | 2021 |
| Quantil Holdings Limited | Administrative & support | 2024 |
| Quercus Property Limited | Real estate | 2021 |
| Querns Property Group Limited | Real estate | 2025 |
| Querns School (Management) Limited | Households | 2009 |
| Querns School Land Management Ltd | Households | 2024 |
| Quorum Associates Limited | Professional & scientific | 1989 |
| R & R Tools & Fixings Limited | Wholesale & retail | 2000 |
| R J Dorey Limited | Construction | 2015 |
| R J Ford Construction Limited | Construction | 2011 |
| R J Polo Limited | Manufacturing | 2011 |
| R S Fire Safety Systems Limited | Construction | 2025 |
| R&K Express Limited | Wholesale & retail | 2025 |
| R.A.M.W. Limited | Financial services | 2008 |
| R3 JET Completions Ltd | Manufacturing | 2025 |
| Race Techniques Ltd | Extraterritorial | 2020 |
| Racking Direct Limited | Extraterritorial | 1991 |
| Radiant Insight Limited | Professional & scientific | 2016 |
| Ragnarok Advisory Ltd | Professional & scientific | 2025 |
| Rahman Group Holdings Ltd | Real estate | 2023 |
| Rainy Day Ideas Limited | Administrative & support | 2007 |
| RAM Construction & Renovation Ltd | Construction | 2021 |
| RAM Recovery Ltd | Wholesale & retail | 2023 |
| Rank Property Developments Limited | Real estate | 2002 |
| Rapid Maintenance Response Limited | Arts & recreation | 2002 |
| Rapid Racking Limited | Wholesale & retail | 1986 |
| Rapido Group Ltd | Administrative & support | 2019 |
| RAR Holdings Ltd | Financial services | 2018 |
| Raseda Limited | Hospitality | 2022 |
| Rave Coffee Limited | Manufacturing | 2010 |
| Ravenshurst Properties Limited | Administrative & support | 2019 |
| RAW Energy Limited | Professional & scientific | 2012 |
| Rayard Showjumping Ltd | Agriculture & fishing | 2015 |
| Rayner's Glazing Ltd | Construction | 2019 |
| Razor Barber Shop Ltd | Other services | 2023 |
| RDB Advisory Ltd | Professional & scientific | 2023 |
| Read Self Storage Limited | Real estate | 2024 |
| Real Asset Wealth Limited | Professional & scientific | 2012 |
| Real Edgy Investments Ltd | Real estate | 2025 |
| Reality and Beyond Limited | Administrative & support | 2000 |
| Realstartups.Com Limited | Information & communication | 1999 |
| Rebecca Davidson-Steel Ltd | Manufacturing | 2024 |
| Rebura Holdings Ltd | Financial services | 2021 |
| Rebura Ltd | Information & communication | 2016 |
| Recipero Group Ltd | Information & communication | 2017 |
| Recipero Limited | Information & communication | 1999 |
| Rectory Farm Equestrian Services Ltd | Agriculture & fishing | 2026 |
| Red Carpet Enterprises Limited | Administrative & support | 2000 |
| Red Eagle Properties Limited | Real estate | 2015 |
| Red House (Cheltenham) Limited | Professional & scientific | 2018 |
| Red Kite Financial Solutions Limited | Financial services | 2016 |
| Red Pike Advisory Services Ltd | Professional & scientific | 2025 |
| Red Stone Path Ltd | Professional & scientific | 2025 |
| Redlynch Residents Limited | Households | 2024 |
| Reef Campers Ltd | Wholesale & retail | 2021 |
| Reflect Financial Limited | Financial services | 2002 |
| Reflections of Nature Ltd | Manufacturing | 2010 |
| Regali CON Amore Ltd | Wholesale & retail | 2019 |
| Regen-Uk Limited | Construction | 2019 |
| Reginald Parker Ltd | Manufacturing | 2025 |
| Relish Festive Ltd | Hospitality | 2014 |
| Relish Venues Limited | Hospitality | 2013 |
| Relleno Group Ltd | Wholesale & retail | 2021 |
| Remarkable Moore Properties Ltd | Real estate | 2019 |
| Remnant Revolution Partnership Limited | Water & waste | 2024 |
| Renco Electrical Limited | Construction | 2015 |
| Rendcomb Consultancy Limited | Professional & scientific | 2010 |
| Rendcomb Securities Limited | Financial services | 1963 |
| Rendcomb Services Limited | Administrative & support | 2010 |