| PWE Properties Ltd | Real estate | 2025 |
| Q8 Import and Export Limited | Wholesale & retail | 2019 |
| Qayiya Ltd | Health & social care | 2011 |
| QFI Holdings Ltd | Financial services | 2025 |
| Quality Brick Craft Limited | Construction | 2025 |
| Quantum Accounting Ltd | Professional & scientific | 2017 |
| Quantum Fusion Strategies Ltd | Professional & scientific | 2023 |
| Quantum Social Care Ltd | Health & social care | 2020 |
| Queen's Moss Ltd | Hospitality | 2021 |
| Queens Supermarket Ltd | Wholesale & retail | 2024 |
| Quicktouch Care Investment Ltd | Financial services | 2015 |
| R & R Business Limited | Real estate | 2025 |
| R - Logix Ltd | Transport & logistics | 2026 |
| R a S Property Solution Limited | Real estate | 2024 |
| R Gill Consulting Ltd | Information & communication | 2024 |
| R J Cluster Limited | Wholesale & retail | 2017 |
| R Logistic Ltd | Transport & logistics | 2021 |
| R S Bespoke Developments Ltd | Construction | 2015 |
| R&P Invest Ltd | Real estate | 2016 |
| R.M.C.Tailor Limited | Professional & scientific | 2014 |
| R.S Fruits & Vegetables Ltd | Wholesale & retail | 2026 |
| R2Z Stays Ltd | Hospitality | 2025 |
| RA Plumbing (London) Ltd | Construction | 2011 |
| RA Properties and Maintenace Ltd | Real estate | 2025 |
| Rabstarconsultancy Ltd | Information & communication | 2024 |
| Rackfix Ltd | Construction | 2015 |
| Rada Auto's Limited | Wholesale & retail | 2025 |
| Radar Consulting Ltd | Professional & scientific | 2021 |
| Radkul Ltd | Transport & logistics | 2013 |
| RAE Events Ltd | Administrative & support | 2025 |
| Raflo Electrical Solution Ltd | Construction | 2016 |
| RAJ Accounting Solutions Ltd | Professional & scientific | 2020 |
| RAJ Healthcare Ltd | Health & social care | 2022 |
| Rajaasvi Ltd | Wholesale & retail | 2025 |
| Rajakanna Limited | Wholesale & retail | 2011 |
| Rajegas Ltd | Real estate | 2022 |
| RAK Home Appliance Limited | Manufacturing | 2009 |
| Rakaposhi Trading Limited | Administrative & support | 2023 |
| Rakita Ltd | Manufacturing | 2021 |
| Ramani Construction Limited | Construction | 2026 |
| Ramses 21 Ltd | Transport & logistics | 2017 |
| Rania Pretty Shop Ltd | Wholesale & retail | 2025 |
| Ranshi Accountants Ltd | Professional & scientific | 2019 |
| Rapid Care Support Limited | Health & social care | 2024 |
| Rapid Route Services Ltd | Transport & logistics | 2026 |
| Rapkeh Investment Limited | Real estate | 2024 |
| Rasul Properties Ltd | Real estate | 2020 |
| Rayan London Bakery Ltd | Hospitality | 2021 |
| Rayan's Barbers Limited | Other services | 2011 |
| Razer Communications Ltd | Administrative & support | 2014 |
| Razvan Trans Logistics Limited | Transport & logistics | 2016 |
| RB Cables Limited | Construction | 2019 |
| RB Cars Valeting Limited | Administrative & support | 2023 |
| RB Chauffeurs Ltd | Transport & logistics | 2019 |
| RC1 Training Ltd | Education | 2013 |
| RCK Services Limited | Professional & scientific | 2017 |
| RCL Enterprise Limited | Construction | 2018 |
| RE Decorating Works Limited | Construction | 2025 |
| Reading Road Limited | Real estate | 2020 |
| Ready for Readies Ltd | Professional & scientific | 2025 |
| Real Voltage Ltd | Construction | 2025 |
| Red Level Limited | Manufacturing | 2026 |
| Red Oak Construction Ltd | Construction | 2021 |
| Red Orkide Ltd | Hospitality | 2024 |
| Red Ruby Store Limited | Wholesale & retail | 2020 |
| Red Temp Works Ltd | Professional & scientific | 2025 |
| Reddin Construction Ltd | Construction | 2025 |
| Redian Limited | Public administration | 2019 |
| Redolondon Ltd | Construction | 2015 |
| Reelcast Rentals Ltd | Administrative & support | 2026 |
| Reem Alhakami Abaya Ltd | Wholesale & retail | 2025 |
| REG Estate Ltd | Real estate | 2025 |
| Rehana Health Care Limited | Health & social care | 2021 |
| Rehimi Limited | Wholesale & retail | 2024 |
| Rehoboth Retail Limited | Administrative & support | 2018 |
| Reimagine Home Ltd | Households | 2025 |
| Reins Piccadilly Ltd | Hospitality | 2026 |
| Renee Estates Ltd | Real estate | 2025 |
| Retailium Ltd | Wholesale & retail | 2026 |
| Revenue Drive Ltd | Financial services | 2026 |
| Revive Physical Therapy Ltd | Health & social care | 2026 |
| Revolutionary Electronic Network Limited | Information & communication | 2026 |
| Reynolds Commissioning Services Ltd | Professional & scientific | 2024 |
| RF International Investment Group Limited | Real estate | 2026 |
| Riches London Limited | Wholesale & retail | 2020 |
| Ride the Lightning Ltd | Construction | 2013 |
| Rightchoice Agents Ltd | Real estate | 2017 |
| Rihana Ltd | Wholesale & retail | 2021 |
| Rihana Retail Ltd | Wholesale & retail | 2021 |
| Riky & Carly Limited | Real estate | 2020 |
| Rinehart Property Specialists Ltd. | Real estate | 2020 |
| Ripon Close Management Company Limited | Households | 2009 |
| RIT Residential Ltd | Real estate | 2025 |
| Rita's Wholesale Ltd | Hospitality | 2022 |
| Ritz Construction Ltd | Construction | 2022 |
| Ritzzy Ltd | Wholesale & retail | 2024 |
| River & Lakes Ltd | Wholesale & retail | 2025 |
| Rivermill Limited | Wholesale & retail | 2003 |
| Riya Cars Limited | Transport & logistics | 2019 |
| RIZ & BIA Limited | Wholesale & retail | 2026 |