| Project Chess Topco Limited | Financial services | 2024 |
| Project REX Ltd | Arts & recreation | 2025 |
| Projects: Student Housing Ltd | Real estate | 2017 |
| Pronto Coffee Shops Ltd | Hospitality | 2014 |
| Property Twentyfour Ltd | Real estate | 2025 |
| Prospetti Ltd | Professional & scientific | 2022 |
| Protect My Income Limited | Financial services | 2017 |
| PRP Security Systems Ltd | Administrative & support | 2025 |
| Prudent Plus Limited | Information & communication | 2016 |
| PSJ Fabrications Ltd | Manufacturing | 1975 |
| Psout Limited | Professional & scientific | 2024 |
| Pulse Equity (Fairways) Ltd | Real estate | 2026 |
| Pulse Partnerships (Cheadle) Limited | Construction | 2011 |
| Pulse Partnerships Limited | Construction | 2010 |
| Pulse Prestige Properties Ltd | Construction | 2019 |
| Puralyfe Limited | Administrative & support | 2009 |
| Pure Inventra Ltd | Administrative & support | 2026 |
| Pure Property Partnership (Investments) Limited | Real estate | 2023 |
| Pure Property Partnership Limited | Real estate | 2021 |
| Pureview 2020 Ltd | Wholesale & retail | 2020 |
| Puro Ventures Limited | Administrative & support | 2006 |
| Purple Creative Ltd. | Professional & scientific | 2015 |
| Purple PIG Partnership Limited | Financial services | 2022 |
| Purple Rain Investments LLP | | 2019 |
| PVM Training Ltd | Education | 2022 |
| PW Project Management Ltd | Professional & scientific | 2022 |
| Pwlw Limited | Hospitality | 2018 |
| Pytech Ltd | Information & communication | 2021 |
| Qoobic Limited | Information & communication | 2007 |
| Quadrillion Wealth Management Ltd. | Financial services | 2012 |
| Qualitas Property Solutions Ltd | Real estate | 2026 |
| Quantum Car Management Limited | Wholesale & retail | 2015 |
| Quarry Bros Ltd | Mining & quarrying | 2025 |
| Quarters (1990) Limited | Real estate | 1990 |
| Qulix UK Limited | Information & communication | 2006 |
| R & B Star (Holdings) Limited | Extraterritorial | 2009 |
| R & J Hankey Limited | Administrative & support | 2018 |
| R. M. Fowler Limited | Manufacturing | 1996 |
| R.& B.Star(Electrical Wholesalers)Limited | Extraterritorial | 1961 |
| R.D.M. Industrial Services Limited | Manufacturing | 1973 |
| Radiant Operators Ltd | Information & communication | 2026 |
| Radix Sports Ltd | Arts & recreation | 2020 |
| Radley House Freeholders Limited | Real estate | 1999 |
| Radnor Park Developments Ltd | Hospitality | 2017 |
| RAG IT Consulting Ltd | Information & communication | 2019 |
| Raindrops Boutique Limited | Wholesale & retail | 2013 |
| Randle Brooks Limited | Real estate | 1957 |
| RAP Property Investment Limited | Real estate | 2021 |
| Raredevice Ltd | Arts & recreation | 2008 |
| Rathmichael Limited | Real estate | 2004 |
| Rathmichael Properties Limited | Real estate | 2003 |
| Rauris Services Limited | Health & social care | 2012 |
| Ravenswood Productions Ltd | Information & communication | 2022 |
| RAY Britland Holdings Limited | Financial services | 2025 |
| RDI Consulting Limited | Information & communication | 2016 |
| Reab Pharma Ltd | Wholesale & retail | 2025 |
| Reach Only Representative Ltd | Professional & scientific | 2007 |
| Reactive Maintenance Group Ltd | Administrative & support | 2021 |
| Rebecca Hartley Limited | Education | 2025 |
| Rebecca Rose Studio Ltd | Professional & scientific | 2023 |
| Recalldigit Limited | Information & communication | 1990 |
| Redd-G Ltd | Real estate | 2025 |
| Redmont Packaging Limited | Administrative & support | 1998 |
| Redwing Partners Limited | Professional & scientific | 2024 |
| Redwood Hire Limited | Wholesale & retail | 2002 |
| Referral Management Services Limited | Health & social care | 2018 |
| Refersquare Limited | Administrative & support | 2017 |
| Reghello Limited | Information & communication | 2022 |
| Reiki Corner Limited | Health & social care | 2016 |
| Reindeer Property Investments Limited | Real estate | 2001 |
| Remove IT (IT) Limited | Wholesale & retail | 2021 |
| REN Global Limited | Administrative & support | 2021 |
| Renewable Metals UK Limited | Water & waste | 2024 |
| Rent to Sell Limited | Real estate | 2024 |
| Research and Development Ltd | Professional & scientific | 2022 |
| Resolute Invest Ltd | Real estate | 2020 |
| Respect Health Solutions Ltd | Information & communication | 2021 |
| Responsible Business ESG Ltd | Professional & scientific | 2025 |
| Retrove Ltd | Wholesale & retail | 2025 |
| Revamp Electrical Limited | Manufacturing | 2017 |
| Revive ! Auto Innovations (Trafford) Limited | Wholesale & retail | 2007 |
| Revolver Hostel Edinburgh Ltd | Hospitality | 2024 |
| Rewilding Cheshire Ltd | Extraterritorial | 2025 |
| Rewilding High Legh Ltd | Extraterritorial | 2025 |
| Rewilding Ltd | Extraterritorial | 2025 |
| Rewilding North West Ltd | Extraterritorial | 2025 |
| Rewilding Warrington Ltd | Extraterritorial | 2025 |
| REX Street Ventures Ltd | Real estate | 2026 |
| Reza Nassab Limited | Other services | 2014 |
| RGH Audi Specialists Ltd | Wholesale & retail | 2019 |
| RGS IT Development Limited | Information & communication | 2012 |
| RH Associates Limited | Professional & scientific | 2025 |
| Ricamargo International Ltd | Professional & scientific | 2021 |
| Ricardo Progress Grants Limited | Health & social care | 2022 |
| Richard Armitage Wealth Management South West Limited | Professional & scientific | 2022 |
| Richard Trenholm Consultancy Services Limited | Professional & scientific | 2007 |
| Rider Hunt International Limited | Mining & quarrying | 1988 |
| Riders Properties Limited | Real estate | 2001 |
| Rigel Shipping EOT Limited | Administrative & support | 2020 |
| Right Side Quadrant Limited | Professional & scientific | 2025 |