| Prospect Tutors Limited | Education | 2024 |
| Prps Properties Limited | Real estate | 2023 |
| PRS Distribution Limited | Transport & logistics | 1999 |
| PRS Transport Limited | Extraterritorial | 1996 |
| Prudent Health Care Limited | Health & social care | 2014 |
| PSC Transport Services Ltd | Transport & logistics | 2026 |
| PSK Commercial Ltd | Real estate | 2016 |
| Psymind Solutions Ltd | Education | 2024 |
| Pulse Medsource Limited | Wholesale & retail | 2026 |
| Punjab Sweets and Spices Ltd | Hospitality | 2025 |
| Purcellian Ltd | Construction | 2008 |
| Pure Vision 4U Ltd | Hospitality | 2025 |
| Pureskin Ella Limited | Other services | 2025 |
| Puzzle FBA & Fulfilment Ltd | Transport & logistics | 2019 |
| Puzzle Freight Limited | Transport & logistics | 2017 |
| Pynesfield Limited | Mining & quarrying | 1996 |
| Pyrex UK Ltd | Administrative & support | 2009 |
| Qatar AMB Limited | Health & social care | 2026 |
| QC Consult Ltd | Professional & scientific | 2023 |
| QDP Holding Limited | Financial services | 2025 |
| Qdrive Group Limited | Financial services | 2025 |
| Qdrive Performance Limited | Transport & logistics | 2019 |
| QIK Group Limited | Professional & scientific | 2002 |
| QIK Guard Limited | Extraterritorial | 1965 |
| QIK LOO Limited | Professional & scientific | 1996 |
| QIK Space Limited | Extraterritorial | 1976 |
| Qintar a F Limited | Health & social care | 2025 |
| QPR Security Ltd | Administrative & support | 2026 |
| QTL Security Ltd | Administrative & support | 2024 |
| Quantum Bytez Ltd | Wholesale & retail | 2023 |
| Quicc Limited | Information & communication | 2019 |
| Quick BIZ Store Ltd | Wholesale & retail | 2026 |
| Quick Skip Hire Limited | Real estate | 2004 |
| Quick Tyres & Recovery 247 Ltd | Transport & logistics | 2025 |
| Quinticsurge Limited | Information & communication | 2021 |
| Qwikcars Ltd | Administrative & support | 2018 |
| R & C Estates Limited | Real estate | 2026 |
| R & V Cakes Limited | Wholesale & retail | 2023 |
| R & V Mann Construction Limited | Construction | 2017 |
| R Gospel a UK C.I.C. | Education | 2025 |
| R Plus R Ltd | Professional & scientific | 2015 |
| R&B Delights Limited | Hospitality | 2025 |
| R&J Drycleaners Limited | Other services | 2022 |
| R. Edinburgh Propco Limited | | 2022 |
| R.P.G. Sign Hire Limited | Other services | 1977 |
| R.Walsh & Co. Limited | Professional & scientific | 2014 |
| R2R Logica Limited | Information & communication | 2015 |
| R4RORI Properties Ltd | Real estate | 2021 |
| RA Cars Limited | Transport & logistics | 2023 |
| Raad Ltd. | Manufacturing | 2018 |
| Rabbit Ryde Ltd | Transport & logistics | 2025 |
| Rabilux Limited | Administrative & support | 1976 |
| Radiance Diagnostics Ltd | Health & social care | 2024 |
| Rahul Kumar Property Holdings Limited | Real estate | 2025 |
| Rahul Saroha Ltd | Construction | 2025 |
| RAI Accountancy Ltd | Professional & scientific | 2021 |
| Raicon Limited | Construction | 2020 |
| Railway Arms Limited | Hospitality | 2018 |
| Raitex Ltd | Professional & scientific | 2026 |
| RAJ Home Build Ltd | Construction | 2019 |
| Raja Marketing Limited | Other services | 2016 |
| Raja Sahib Metal Works Ltd | Manufacturing | 2022 |
| Raja's Enterprises Limited | Real estate | 2022 |
| Rajcontruction Ltd | Construction | 2025 |
| Rajmane Limited | Wholesale & retail | 2015 |
| Rajuglow Glamour Ltd | Administrative & support | 2023 |
| RAM Family & Child Care Ltd | Health & social care | 2025 |
| RAM Wheels Limited | Wholesale & retail | 2019 |
| Ramassidetours Ltd | Information & communication | 2025 |
| Ramd Limited | Construction | 2026 |
| Randeni Motors Ltd | Wholesale & retail | 2025 |
| Randhawa Invest Limited | Real estate | 2026 |
| Rani Staffing Limited | Administrative & support | 2022 |
| Rapbidder Limited | Information & communication | 2024 |
| Rapid Fit Tyres Ltd | Wholesale & retail | 2010 |
| Rapid Removals & Services Ltd | Transport & logistics | 2026 |
| Rarus Atelier Ltd | Wholesale & retail | 2026 |
| Rathodit Limited | Wholesale & retail | 2024 |
| Rating Easy Ltd | Financial services | 2017 |
| Ravenclause Limited | Information & communication | 2021 |
| RAY Movie Limited | Professional & scientific | 2021 |
| Rayann Logistics Ltd | Transport & logistics | 2026 |
| Rayley Capital Ltd | Real estate | 2023 |
| Rayna Enterprise Ltd | Wholesale & retail | 2023 |
| RB Chauffeuring Services Ltd | Transport & logistics | 2018 |
| REA Connect Ltd | Transport & logistics | 2026 |
| Ready Serserve Ltd | Hospitality | 2026 |
| Rebecca Peirce Garment Technology Limited | Manufacturing | 2025 |
| Red Mutex Limited | Information & communication | 2015 |
| Redgrove Investments Limited | Real estate | 2022 |
| Redwoods Cars Limited | Transport & logistics | 2022 |
| Redwoods of Heathrow Ltd | Transport & logistics | 2015 |
| Reehal Properties Limited | Real estate | 2024 |
| Reelsound Limited | Information & communication | 2010 |
| Reform Build Constructions Ltd | Construction | 2026 |
| Refugees in Effective and Active Partnership | Health & social care | 2002 |
| Refurb Computing Limited | Wholesale & retail | 2025 |
| Regalstone Properties Ltd | Real estate | 2025 |
| Regency Commercial Ltd | Real estate | 2003 |
| Reibal Ltd | Construction | 2026 |