| Prospect Property Group Limited | Real estate | 2024 |
| Protec Enamel Limited | Extraterritorial | 1994 |
| PRP Patterns Limited | Professional & scientific | 2013 |
| Psalm Cleaning Services Limited | Administrative & support | 2003 |
| PSD Consulting Limited | Professional & scientific | 2018 |
| PSD Holdings Limited | Extraterritorial | 2006 |
| Psldrive Limited | Education | 2025 |
| PSM Plastering & Property Maintenance Limited | Administrative & support | 2010 |
| PSP Courier Limited | Transport & logistics | 2015 |
| PT Industrial Maintenance Services Ltd | Administrative & support | 2026 |
| Pure Aesthetics by Becki Ltd | Wholesale & retail | 2026 |
| Pure Hearing Solutions Ltd | Health & social care | 2024 |
| Pure Peels & Skin Care Supplies Limited | Wholesale & retail | 2019 |
| Pure Supps Limited | Other services | 2016 |
| Pureato Preps Ltd | Manufacturing | 2023 |
| Purewal and Co. Consulting Ltd | Professional & scientific | 2025 |
| Purus Clean Ltd | Administrative & support | 2025 |
| Pvsl Limited | Professional & scientific | 2006 |
| Pwfm Limited | Administrative & support | 2001 |
| PYE Green Management Company Limited | Real estate | 2015 |
| Pygmalion Music Limited | Education | 2012 |
| Q 2 Build Limited | Construction | 2025 |
| Q.B.S. (Scaffolding) Limited | Construction | 2005 |
| QIN Candles Ltd | Manufacturing | 2020 |
| QSP Conversions Ltd | Construction | 2019 |
| QSR Trading Limited | Financial services | 2019 |
| Qualita Electrical Limited | Energy | 2011 |
| Quality Balustrades Limited | Manufacturing | 2019 |
| Quality Cottages Ltd | Real estate | 2024 |
| Quality Installations and Glazing Limited | Construction | 2015 |
| Quantex Consulting (Central) Limited | Extraterritorial | 2019 |
| Quantex Consulting (Holdings) Limited | Financial services | 2021 |
| Quantex Consulting (Northern) Limited | Extraterritorial | 2019 |
| Quantex Consulting (Southern) Limited | Extraterritorial | 2019 |
| Quantex Consulting Limited | Professional & scientific | 2000 |
| Quantum Manufacturing Limited | Manufacturing | 1993 |
| Quietproof Ltd | Information & communication | 2025 |
| Qupa Ltd | Transport & logistics | 2023 |
| R & C Commercials Limited | Real estate | 2019 |
| R & L Site Services Limited | Construction | 2026 |
| R & R Consultancy Limited | Professional & scientific | 2006 |
| R & S Design Services Limited | Professional & scientific | 2020 |
| R & S Walsh Investment Properties Ltd | Financial services | 2023 |
| R Freedman Consultancy Limited | Construction | 2016 |
| R H Ductwork Limited | Energy | 2016 |
| R Hale Brickwork Limited | Construction | 2017 |
| R J Properties (Midlands) Limited | Construction | 2005 |
| R Line Taxis Limited | Transport & logistics | 2026 |
| R P Technologies Group Limited | Professional & scientific | 2020 |
| R W Home Renovations Limited | Real estate | 2014 |
| R&D Product Services Limited | Professional & scientific | 2022 |
| R.J. Hall (Decorating Contractors) Ltd | Construction | 2003 |
| R3 Regain Rebuild Relive Limited | Administrative & support | 2026 |
| Race Co Cycles UK Ltd | Wholesale & retail | 2018 |
| Raees Mohammed Ltd | Construction | 2023 |
| Raelwell Limited | Financial services | 1964 |
| Raffle My House Limited | Wholesale & retail | 2019 |
| Raffle Records Ltd | Professional & scientific | 2018 |
| Railform Services Limited | Transport & logistics | 1989 |
| Railplan Ltd | Professional & scientific | 2024 |
| Rainbow Electrics Ltd | Construction | 2025 |
| Rajass Limited | Financial services | 2015 |
| Raklad Enterprises Limited | Wholesale & retail | 2024 |
| RAM Lock Ltd | Administrative & support | 2022 |
| Ramas (Holdings) Ltd | Professional & scientific | 2018 |
| Randhawa Properties 2024 Ltd | Real estate | 2024 |
| Randhawa UK Convenience Stores Ltd | Wholesale & retail | 2024 |
| Rank Business Ltd | Professional & scientific | 2019 |
| Rapid Roadside Recovery Ltd | Other services | 2026 |
| Rapid Tyre Service and Supplies Ltd | Wholesale & retail | 2025 |
| Rapidfba Ltd | Wholesale & retail | 2026 |
| Rated Directories Limited | Professional & scientific | 2013 |
| Ravenswhere Ltd | Professional & scientific | 2013 |
| RAW Pet Food Supplies Ltd | Wholesale & retail | 2021 |
| Raybloc Holdings Limited | Financial services | 2024 |
| Raybloc Limited | Financial services | 2020 |
| RB Capital Investments Limited | Financial services | 2025 |
| Rb-Consult-Uk Limited | Professional & scientific | 2026 |
| RC Building & Property Solutions Ltd | Construction | 2026 |
| RC Roofing and Cladding Solutions Ltd | Construction | 2019 |
| RC Technical Services (Midlands) Limited | Professional & scientific | 2011 |
| RCT Manufacturing Limited | Manufacturing | 2003 |
| RD Outdoor Ltd | Construction | 2017 |
| RDF Commercials Limited | Wholesale & retail | 2025 |
| RDJ Steelwork Solutions Ltd | Construction | 2019 |
| RDR Housing Ltd | Real estate | 2024 |
| RDW Electrical Ltd | Construction | 2019 |
| READY4LIFE Care Limited | Health & social care | 2025 |
| Reakt Media Limited | Administrative & support | 2014 |
| Real Coffee BAG Company Limited | Manufacturing | 2013 |
| Real Eyes Personal & Organisation Development Limited | Professional & scientific | 2009 |
| Reaperware Ltd | Manufacturing | 2023 |
| Rebellion's Pubs Ltd | Hospitality | 2023 |
| Rebelya Ltd | Arts & recreation | 2022 |
| Recover Upholstery Limited | Manufacturing | 2015 |
| Recovery Care Limited | Health & social care | 2012 |
| Recruit Therapists Ltd | Administrative & support | 2022 |
| Recuperata Limited | Extraterritorial | 2012 |
| Recuperrates Limited | Extraterritorial | 2012 |
| Red - One Solutions Ltd | Information & communication | 2022 |