| Premier Threes Bowls Tour Ltd | Arts & recreation | 2012 |
| Prestige Autohaus Limited | Wholesale & retail | 2024 |
| Prestige House Removals Ltd | Transport & logistics | 2021 |
| Price & Price Consulting LLP | | 2015 |
| Primeherd Ltd | Agriculture & fishing | 2026 |
| Prince Energy Limited | Wholesale & retail | 2023 |
| Prince Petroleum Limited | Wholesale & retail | 1963 |
| Principia Publishing Ltd | Information & communication | 2012 |
| Priory Commercials Limited | Manufacturing | 2012 |
| Priory Commercials Truck and Van Ltd | Wholesale & retail | 2021 |
| Priory Partners Limited | Information & communication | 2022 |
| Prize and Competition Council Ltd | Professional & scientific | 2026 |
| PRJ Travels Ltd | Administrative & support | 2025 |
| Pro Lawncare Limited | Other services | 2001 |
| Pro Tailoring Ltd | Other services | 2023 |
| Pro-Aktiv Ltd | Administrative & support | 2016 |
| Pro-Guards Security Ltd | Administrative & support | 2021 |
| Proace Tiling Ltd | Construction | 2014 |
| Probably Fine Ltd | Hospitality | 2023 |
| Process Control and Information Limited | Manufacturing | 1997 |
| Processor Solutions Design Limited | Manufacturing | 1994 |
| Proficient Engineering Solutions Ltd | Manufacturing | 2023 |
| Profield Engineering Limited | Wholesale & retail | 2002 |
| Prop Operational Support Ltd | Professional & scientific | 2023 |
| Propackd Ltd | Administrative & support | 2026 |
| Proper Pies Ltd | Manufacturing | 2026 |
| Propoint Solutions Limited | Administrative & support | 2025 |
| Protocol Solutions Ltd | Construction | 2018 |
| Provident IT Solutions Ltd | Information & communication | 2017 |
| Providia Ltd | Professional & scientific | 2024 |
| PSL Vape Ltd | Wholesale & retail | 2023 |
| PSR Plastics Limited | Manufacturing | 1998 |
| Psychology 360 Consultancy Limited | Education | 2016 |
| Psychology Science Ltd | Professional & scientific | 2022 |
| PTK Contracts Ltd | Construction | 2017 |
| PTN Cleaning Services Ltd | Administrative & support | 2022 |
| PTY Holdings Limited | Real estate | 2019 |
| Purecart Limited | Wholesale & retail | 2025 |
| Purple Wolf Safety Ltd | Professional & scientific | 2025 |
| Pyrus Consulting Limited | Professional & scientific | 2005 |
| QI Health & Beauty Limited | Other services | 2012 |
| QPB Business Services Limited | Professional & scientific | 2016 |
| Quickcrew UK (PTY) Ltd | Extraterritorial | 2023 |
| Quinvex Limited | Information & communication | 2021 |
| Quorn Hunt Limited | Agriculture & fishing | 2013 |
| Quorn Lodge Limited | Hospitality | 2023 |
| Quorn Service Apartments Limited | Real estate | 2026 |
| R & E Investment Group Limited | Real estate | 2022 |
| R & G Automotives Ltd | Wholesale & retail | 2005 |
| R & S Oakham Limited | Hospitality | 2016 |
| R & T Autocentre Ltd | Wholesale & retail | 2015 |
| R a Shield Farms Limited | Agriculture & fishing | 2016 |
| R a Shield Limited | Agriculture & fishing | 2016 |
| R and J GEE Properties Limited | Real estate | 2026 |
| R B Executive Travel Ltd | Transport & logistics | 2023 |
| R J F Site Services Ltd | Professional & scientific | 2019 |
| R Morgan Properties Limited | Real estate | 2015 |
| R N White Surgical Consultancy Services Limited | Professional & scientific | 2015 |
| R T Dairy Services Limited | Manufacturing | 2011 |
| R.L.G Development Limited | Real estate | 2025 |
| R2R Foot Health Ltd | Health & social care | 2025 |
| R2R Footcare Ltd | Health & social care | 2020 |
| R2R Property Ltd | Construction | 2020 |
| R7 Cooling Ltd | Construction | 2026 |
| RAC Contractors Limited | Agriculture & fishing | 2000 |
| Racecom Ltd | Information & communication | 2009 |
| Rachel Young Strategic Advisory Services Ltd | Information & communication | 2025 |
| Radcam Investments Limited | Financial services | 2025 |
| Radiantlotus Cafe Ltd | Wholesale & retail | 2026 |
| Ragdale Limited | Professional & scientific | 2020 |
| Raine Properties Ltd | Real estate | 2024 |
| Ralda Ltd | Construction | 2012 |
| Rasvit Ltd | Real estate | 2019 |
| RAW Canine Equipment Ltd | Wholesale & retail | 2020 |
| RB Industrial Installation Ltd | Manufacturing | 2020 |
| RBC Financial Services Limited | Financial services | 2022 |
| Rcpl Ltd | Wholesale & retail | 2024 |
| RCS (Rutland) Ltd | Administrative & support | 2019 |
| Reach Outdoor Developments Limited | Real estate | 2011 |
| Realisations (UK) Limited | Manufacturing | 1992 |
| Rebecca Lawrence Psychology Limited | Education | 2024 |
| Red First Ltd | Administrative & support | 2025 |
| Red House Estates Developments Limited | Construction | 2023 |
| Red House Estates Holdings Limited | Financial services | 2023 |
| Red White & Blue Investments Ltd | Construction | 2019 |
| Redd Creative Ltd | Extraterritorial | 2006 |
| Redd Europe Limited | Professional & scientific | 2002 |
| Redd Retail (USA) Limited | Manufacturing | 2017 |
| Redd Retail Group Limited | Professional & scientific | 2016 |
| Redd Retail Limited | Manufacturing | 2014 |
| Redivivus Consulting Ltd | Information & communication | 2026 |
| Redstone Engineering Ltd | Professional & scientific | 2022 |
| Redstone HR Ltd | Professional & scientific | 2025 |
| Regent Services (Waltham) Automotive Ltd | Wholesale & retail | 2021 |
| Regent Services (Waltham) Limited | Wholesale & retail | 1991 |
| Reiki Audio Ltd | Manufacturing | 2019 |
| Renegade Locks Limited | Wholesale & retail | 2022 |
| Renovation Rentals Ltd | Real estate | 2025 |
| Renu Aesthetics and Training Ltd | Other services | 2022 |
| Resolute Retail Solutions Limited | Construction | 2010 |