| Pycc Properties Limited | Real estate | 2020 |
| Pyramid Property Limited | Extraterritorial | 2023 |
| PZ Plumber Limited | Construction | 2021 |
| Q J Solutions Ltd | Construction | 2018 |
| Qaderz Ltd | Wholesale & retail | 2024 |
| Qazitech Ltd | Information & communication | 2020 |
| QIK Ltd | Transport & logistics | 2025 |
| Qing Zhen Eats Ltd | Hospitality | 2024 |
| QKC Shipping Ltd | Wholesale & retail | 2024 |
| Qmma Limited | Other services | 2024 |
| Qodex Ltd | Information & communication | 2025 |
| Quadratos Management Ltd | Extraterritorial | 2015 |
| Qualcert UK Ltd | Education | 2023 |
| Qualita Limited | Wholesale & retail | 2008 |
| Quality 1ST Cleaning Services Ltd | Other services | 2013 |
| Quality Basra International Limited | Wholesale & retail | 2024 |
| Quality Carpenters & Construction Ltd | Construction | 2026 |
| Quality Control Roofing Supplies Ltd | Wholesale & retail | 2025 |
| Quality First Early Years Consultancy Ltd | Professional & scientific | 2026 |
| Quamina Foods UK Limited | Other services | 2017 |
| Quansah Windows Limited | Manufacturing | 2025 |
| Quantum Blue Technology Ltd | Information & communication | 2024 |
| Quaranta Ltd | Professional & scientific | 2026 |
| Queer Theatre Ltd | Arts & recreation | 2012 |
| Quick Easy Shop Ltd | Wholesale & retail | 2026 |
| Quinoa Store Ltd | Wholesale & retail | 2014 |
| Qureshi Enterprise Limited | Hospitality | 2012 |
| Qwest Property Solutions Limited | Real estate | 2012 |
| R & N Transport Ltd | Transport & logistics | 2015 |
| R a Marshall Design Ltd | Professional & scientific | 2018 |
| R Construction Ltd | Construction | 2020 |
| R H Investments Group Ltd | Administrative & support | 2021 |
| R J Imports Ltd | Wholesale & retail | 2025 |
| R N K Fresh Fish Ltd | Wholesale & retail | 2026 |
| R Y Sports Ltd | Professional & scientific | 2016 |
| R&S Trading Ltd | Wholesale & retail | 2022 |
| R&W Import Export Limited | Wholesale & retail | 2013 |
| R.Enterprisers Ltd | Wholesale & retail | 2025 |
| RA UK Store Ltd | Wholesale & retail | 2025 |
| RA Wholesale Limited | Wholesale & retail | 2021 |
| Raavana Production Ltd | Information & communication | 2025 |
| RAB Mimosa Limited | Professional & scientific | 2013 |
| Rabaty Food Centre Ltd | Wholesale & retail | 2025 |
| Racing DEW Ltd | Wholesale & retail | 2020 |
| Radiance Production Limited | Information & communication | 2009 |
| Radiant Delights Ltd | Manufacturing | 2024 |
| Radjon Limited | Wholesale & retail | 2001 |
| Rado Contractors Ltd | Construction | 2022 |
| Radzden Ltd | Health & social care | 2023 |
| Ragala Trade Limited | Wholesale & retail | 2025 |
| Raheem Distributors Limited | Wholesale & retail | 2019 |
| Raheem Global Services Limited | Public administration | 2024 |
| Rainbow Medical Services Ltd | Administrative & support | 2002 |
| Rainbow Misberb Ltd | Health & social care | 2014 |
| Rainbow Motors Limited | Wholesale & retail | 2016 |
| Rajstudios Ltd | Professional & scientific | 2024 |
| Ramzi Enterprises Limited | Hospitality | 2018 |
| Rana Foods & Halal Meat Limited | Wholesale & retail | 2014 |
| Rana Kash Builders Ltd | Construction | 2021 |
| Rana Training Ltd | Education | 2022 |
| Random Analysis Limited | Information & communication | 2008 |
| Range Cars Limited | Administrative & support | 2019 |
| Ranis Property Ltd | Real estate | 2025 |
| Ranns Builders Merchants Limited | Construction | 2002 |
| Ranns Construction Limited | Construction | 2002 |
| Rapid Hydraulics Limited | Manufacturing | 2008 |
| Rapid Improvement Limited | Administrative & support | 2007 |
| Rapid Improvement Pharmaceuticals Ltd | Other services | 2025 |
| Rapid Trucko Ltd | Transport & logistics | 2023 |
| Rapid Wraps Ltd | Manufacturing | 2024 |
| Rare Nail and Beauty Salon Ltd | Other services | 2023 |
| Rashang Ltd | Wholesale & retail | 2026 |
| Rashid Latif Photography Ltd | Information & communication | 2011 |
| Rasons Supermarket Ltd | Wholesale & retail | 2018 |
| Rastarolla Ltd | Information & communication | 2025 |
| Raynes Park Construction Limited | Extraterritorial | 2020 |
| Raynexus Ltd | Information & communication | 2015 |
| Rays Business Ltd | Transport & logistics | 2022 |
| Rayze Consultancy Ltd | Information & communication | 2020 |
| Rayze Properties Ltd | Real estate | 2020 |
| Razc Ltd | Construction | 2025 |
| RB New Technology Ltd | Professional & scientific | 2018 |
| RBB Builders Ltd | Construction | 2025 |
| RBB Building Ltd | Construction | 2015 |
| RBK Solution Ltd | Health & social care | 2015 |
| RBN Food Ltd | Administrative & support | 2016 |
| RC Security Chauffeurs Ltd | Transport & logistics | 2024 |
| Rccg the House of Resurrection | Real estate | 2011 |
| RCD Cars Ltd | Transport & logistics | 2015 |
| RD & M Developments London Limited | Real estate | 2023 |
| RD Acquisitions Ltd | Real estate | 2022 |
| RD Car Steam Ltd | Wholesale & retail | 2017 |
| RE Executive Group Ltd | Wholesale & retail | 2023 |
| Reach Further Collaborative CIC | Education | 2025 |
| Reach OUT Ltd | Other services | 2020 |
| Realsimplify Ltd | Wholesale & retail | 2025 |
| Reboot Studio Ltd | Arts & recreation | 2026 |
| Recreate Homes Limited | Real estate | 2021 |
| Recycled Thermal Energy Limited | Administrative & support | 2014 |
| Red & Blue London Ltd | Construction | 2007 |