| Rashida Catering Ltd | Hospitality | 2024 |
| Rashmi Neeraj Limited | Health & social care | 2018 |
| Rasul Dent Ltd | Health & social care | 2023 |
| Rationed Floors Ltd | Construction | 2025 |
| Ratnagiri Ltd | Health & social care | 2022 |
| Rauf Logistics Ltd | Transport & logistics | 2021 |
| Ravian Traders Limited | Wholesale & retail | 2026 |
| Rawand KRD Ltd | Wholesale & retail | 2025 |
| Rawna 25 Ltd | Professional & scientific | 2025 |
| Rawtenstall Sushi Limited | Hospitality | 2023 |
| Ray's Podiatry Ltd | Health & social care | 2021 |
| Rayaan Ismail Limited | Professional & scientific | 2016 |
| Rayak Engineering Limited | Professional & scientific | 2025 |
| Rayhan Alam Ltd | Hospitality | 2013 |
| Rayka Hygiene Services Limited | Health & social care | 2024 |
| Rayman Bedding Limited | Wholesale & retail | 2025 |
| Rayman Hire Ltd | Administrative & support | 2026 |
| Rayson Ltd | Health & social care | 2025 |
| RAZ Barber OL11 Ltd | Other services | 2017 |
| RAZ Collection Ltd | Wholesale & retail | 2024 |
| Raza Investments Ltd | Real estate | 2024 |
| Razisma Ltd | Real estate | 2024 |
| Razor Datacenters UK Ltd | Wholesale & retail | 2025 |
| RB Exterior Limited | Administrative & support | 2025 |
| RB Marine Power Engineering (UK) Limited | Construction | 2019 |
| RB Smedley Limited | Financial services | 2025 |
| RBD Trading Ltd | Wholesale & retail | 2024 |
| RBG Track Works Limited | Construction | 2019 |
| RBH (Design and Build) Limited | Construction | 2011 |
| RBH Professional Limited | Extraterritorial | 2011 |
| RBP Investments Ltd | Administrative & support | 2017 |
| Rbuk Legal Ltd | Administrative & support | 2004 |
| RC Rentals Ltd | Transport & logistics | 2021 |
| RCD Leaflets Limited | Information & communication | 2009 |
| RCS Civils Ltd | Construction | 2024 |
| RDB Agricultural Contractors Ltd | Administrative & support | 2024 |
| RDL Business Services Limited | Information & communication | 2008 |
| RDT Services (UK) Limited | Administrative & support | 2012 |
| Re-Lec Solutions Ltd. | Real estate | 2018 |
| Reactive Limited | Construction | 2023 |
| Ready 4 Pass Ltd | Education | 2026 |
| Real Estate Capital Investments Limited | Construction | 2009 |
| Real Trust Ltd | Education | 2026 |
| Realistic Pixels Ltd | Information & communication | 2007 |
| Rebel Canvas Ltd | Manufacturing | 2020 |
| REBEL2K Limited | Information & communication | 2023 |
| Recardo Carwash Limited | Administrative & support | 2025 |
| Recardo Hand Car Wash Limited | Administrative & support | 2025 |
| Reclaim My Power Limited | Administrative & support | 2023 |
| Recognition 2014 Limited | Administrative & support | 2014 |
| Recomm Solutions Ltd | Wholesale & retail | 2023 |
| Recovery Heroes 247 Ltd | Wholesale & retail | 2021 |
| Recruitment Empire Limited | Administrative & support | 2008 |
| Recruitment Solutions (North West) Ltd | Administrative & support | 2004 |
| Recuro Sports Injury & Performance Clinic Ltd | Health & social care | 2022 |
| Red 68 Estates Limited | Real estate | 2023 |
| Red 68 Group Limited | Professional & scientific | 2023 |
| Red 68 Properties Limited | Real estate | 2023 |
| Red Express Direct Limited | Wholesale & retail | 2007 |
| Red Mango Limited | Extraterritorial | 2011 |
| Red Oak Stairs and Windows Ltd | Manufacturing | 2010 |
| Red Robin Early Education Ltd | Education | 2024 |
| Red Rose Landscapes Playground Specialists Ltd | Administrative & support | 2022 |
| Red Rose Preservations Ltd | Construction | 1995 |
| Red Stone Developers & Construction Ltd. | Construction | 2012 |
| Redbank Motors Ltd | Wholesale & retail | 2014 |
| Redbeardsuk Ltd | Transport & logistics | 2024 |
| Redfearn Maintenance Limited | Construction | 2023 |
| Redline Financial Limited | Financial services | 2014 |
| Reed Karaoke Bar Limited | Hospitality | 2017 |
| Reetakataria Property Limited | Real estate | 2025 |
| Refined Internet Ltd | Administrative & support | 2012 |
| Refreshaframe Ltd | Construction | 2022 |
| Regal Salons Ltd | Other services | 2020 |
| Regalty Estates Limited | Real estate | 2009 |
| Regent Security Ltd | Administrative & support | 2022 |
| Regplatesuk Limited | Wholesale & retail | 2026 |
| Rehan Travel Ltd | Administrative & support | 2022 |
| Rehana Homes Ltd | Real estate | 2025 |
| Rehoboth Wellness Clinic and Property Ventures Ltd | Wholesale & retail | 2024 |
| Reiss Energy Management Limited | Professional & scientific | 2014 |
| Relf Consulting Limited | Professional & scientific | 2018 |
| Reliable Art Patches Ltd | Wholesale & retail | 2023 |
| Relvion Limited | Wholesale & retail | 2025 |
| Remady Limited | Wholesale & retail | 2023 |
| Remaison Construction Ltd | Construction | 2024 |
| Remica Care Limited | Administrative & support | 2026 |
| Rennio Industries Ltd | Professional & scientific | 2023 |
| Renovaserve Ltd | Administrative & support | 2023 |
| Rentruck (Rochdale) Limited | Extraterritorial | 1962 |
| Repair Maintenance Solutions Limited | Wholesale & retail | 2010 |
| Repair My Boiler Ltd | Manufacturing | 2018 |
| Rescomm Ltd | Real estate | 2018 |
| Researchcore Ltd | Information & communication | 2018 |
| Reserved Marketing & Design Ltd | Wholesale & retail | 2015 |
| Resethealthdetox Ltd | Health & social care | 2026 |
| Reshma Balti Ltd | Hospitality | 2025 |
| Reside Estate Agents Ltd | Real estate | 2014 |
| Resilient Mindsets Ltd | Education | 2024 |
| Resource IT Services Ltd | Information & communication | 2018 |