| R.J.Lawrence Dental Laboratory Ltd | Manufacturing | 2003 |
| R.S. Miller Holdings Limited | Real estate | 1998 |
| R.T. Bearings Limited | Manufacturing | 1981 |
| RA17 Properties Ltd | Real estate | 2024 |
| Rabbit & Rule Limited | Professional & scientific | 2025 |
| RAD1975 Limited | Other services | 2017 |
| Rainbow Frog Properties Ltd | Real estate | 2022 |
| Raja Sahib Store Limited | Wholesale & retail | 2020 |
| Rajaram Properties Ltd | Real estate | 2026 |
| Rajesh Kumar Ltd | Wholesale & retail | 2025 |
| Ramzan & Kiyani Ltd | Real estate | 2015 |
| Ramzan Limited | Wholesale & retail | 2004 |
| Ranscombe Limited | Wholesale & retail | 2002 |
| Rapid Furniture Ltd | Wholesale & retail | 2022 |
| Ravas Properties Limited | Real estate | 2020 |
| Raykon Healthcare Limited | Health & social care | 2017 |
| Raykon Property Services Limited | Real estate | 2023 |
| RB 109 Limited | Hospitality | 2024 |
| RB Active Care Limited | Health & social care | 2017 |
| RB Education Group Limited | Financial services | 2019 |
| RB Gym & Sport Limited | Arts & recreation | 2010 |
| RB Sports Activities Limited | Arts & recreation | 2015 |
| RBW Management Services Ltd | Professional & scientific | 2018 |
| RCC Property Vision Limited | Real estate | 2023 |
| RCY Finishings Limited | Construction | 2018 |
| RD Accounting Limited | Professional & scientific | 2016 |
| RDD Properties Limited | Real estate | 2020 |
| Rdgl Holdings Limited | Financial services | 2020 |
| Rdgl Investment Holdings Limited | Financial services | 2020 |
| Rdgl Investments Limited | Administrative & support | 2020 |
| RDP10 Properties Limited | Real estate | 2022 |
| Rdpo Trading Ltd | Financial services | 2025 |
| Re-Evolved Limited | Administrative & support | 1984 |
| Reader Masonry Ltd | Construction | 2015 |
| Realta Homes (Midlands) Limited | Construction | 2013 |
| Reclaim App Limited | Information & communication | 2026 |
| Recoup Group Ltd | Administrative & support | 2017 |
| Recoup Group TTE Ltd | Professional & scientific | 2014 |
| Red by Night Ltd | Hospitality | 2019 |
| Red Oak Soft Limited | Information & communication | 2023 |
| Redfox Sports Management Limited | Arts & recreation | 2010 |
| Redlaw Electrical Laminations Ltd | Manufacturing | 2024 |
| Redline RPM Limited | Administrative & support | 2018 |
| Redwood Mobility Solutions Ltd | Manufacturing | 2024 |
| Reepol Limited | Construction | 2022 |
| Reeves Consulting Engineers Limited | Construction | 2020 |
| Refresh Cleaning and Property Maintenance Group Limited | Administrative & support | 2022 |
| Regency Homes (Brierley Hill) Limited | Real estate | 1986 |
| Regency Homes Group Limited | Financial services | 2017 |
| Regency Homes Kingswinford Ltd | Extraterritorial | 2020 |
| Rehman Solutions Ltd | Transport & logistics | 2025 |
| Relentless Coaching Limited | Education | 2024 |
| Relocatable Limited | Administrative & support | 2008 |
| Relocatable Structures Limited | Administrative & support | 2010 |
| Relonerdass Ltd | Transport & logistics | 2017 |
| Rendering Beads and Tapes Ltd | Wholesale & retail | 2025 |
| Rense & Shine Car Valeting Limited | Administrative & support | 2020 |
| Repair & Revive Ltd | Wholesale & retail | 2025 |
| REPAIR4PC Limited | Other services | 2018 |
| Residential Engineering Design Ltd | Professional & scientific | 2016 |
| Resistance Wires Limited | Extraterritorial | 2014 |
| Resolute Consultancy International Limited | Real estate | 2021 |
| Retail Delivery Limited | Professional & scientific | 2007 |
| Retro Flex Gym Ltd | Arts & recreation | 2023 |
| Reverieclthn Limited | Wholesale & retail | 2025 |
| REX Kang Holdings Ltd | Financial services | 2026 |
| RGK Wheelchairs Limited | Manufacturing | 2003 |
| RH Landscaping & Driveways Limited | Administrative & support | 2023 |
| RH Survey Services Ltd | Other services | 2025 |
| RH98 Properties Limited | Real estate | 2021 |
| Rhea Secure Ambulance Service Ltd | Transport & logistics | 2025 |
| Rhino Cargo Control Limited | Manufacturing | 2019 |
| Rhys Branding Limited | Manufacturing | 2022 |
| Rhythms Restaurant Limited | Hospitality | 2018 |
| Riatex Limited | Transport & logistics | 2018 |
| Riccan Group Limited | Professional & scientific | 2022 |
| Richard Beedle Steel Solutions Ltd | Administrative & support | 2013 |
| Richman Residences Limited | Real estate | 2021 |
| Ricki Clarke Services Limited | Construction | 2016 |
| Ricky Evans Darts Limited | Arts & recreation | 2019 |
| Ridgeway Manufacturing Limited | Manufacturing | 2008 |
| Ridgway Property Holdings Limited | Financial services | 2012 |
| Ridgway Property Rentals Limited | Real estate | 2024 |
| Ringshop.Co.Uk Limited | Wholesale & retail | 2002 |
| Rise Web Services Ltd | Information & communication | 2023 |
| River Training Services Limited | Education | 2016 |
| Riverbuild Robotics Ltd | Extraterritorial | 2019 |
| RJ Car and Commercial Limited | Wholesale & retail | 2014 |
| Rj&Sm Investco Limited | Financial services | 2025 |
| RJS Refining Ltd | Water & waste | 2022 |
| RKS Superstores Limited | Wholesale & retail | 2019 |
| RMJ Subcon CNC Machining Limited | Manufacturing | 2024 |
| Roadworker Abuse and Incursion Safety Exchange (Raise) Ltd | Information & communication | 2026 |
| Robert Hayward Ltd | Professional & scientific | 2019 |
| Robins Timber Company Limited | Extraterritorial | 2016 |
| Robinson Brothers Investments Limited | Real estate | 2020 |
| Robinson’S Central Heating Ltd | Construction | 2022 |
| Robot Store Limited | Wholesale & retail | 2017 |
| Rock Marsh Properties Limited | Real estate | 2021 |
| Rockfryer Fish and Chips Ltd | Administrative & support | 2023 |