| Rendob Investments Ltd | Real estate | 2025 |
| Rendtech MCR Ltd | Construction | 2024 |
| Renee Worch Properties Limited | Real estate | 1992 |
| Renegade Rally Ltd | Professional & scientific | 2020 |
| Rennalps Limited | Other services | 2014 |
| Rennari Limited | Wholesale & retail | 2019 |
| Renova Shaw Property Group Ltd | Real estate | 2024 |
| Renovit Ltd | Construction | 2025 |
| Rensow Management Ltd | Real estate | 2024 |
| Rensow Properties Limited | Real estate | 2022 |
| Rent Glance Ltd | Information & communication | 2025 |
| Rental NJC Ltd | Real estate | 2026 |
| Rentalz Ltd | Other services | 2022 |
| Rentiel & Associates Ltd | Professional & scientific | 2023 |
| Rentiel Calculations Ltd | Other services | 2006 |
| Rentiel Media Limited | Information & communication | 2021 |
| Replica Music Limited | Arts & recreation | 2018 |
| Reputation Cube Limited | Other services | 2019 |
| Reside Home and Construction Limited | Manufacturing | 2022 |
| Residentexamcoach Limited | Education | 2025 |
| Resincrest Limited | Wholesale & retail | 1982 |
| Resistance Technology Limited | Manufacturing | 1991 |
| Restarted Education Ltd | Education | 2024 |
| Result Coaching and Training CIC | Professional & scientific | 2012 |
| Retail Nominees Limited | Extraterritorial | 2006 |
| Retail Store Ltd | Wholesale & retail | 2024 |
| Retail Store Pro Ltd | Wholesale & retail | 2025 |
| Rethinking Cities Limited | Professional & scientific | 2006 |
| Retreat SGM Properties Ltd | Real estate | 2026 |
| Retrofire Ltd | Arts & recreation | 2021 |
| Reuben’S Fragrances Ltd | Wholesale & retail | 2026 |
| REV X Cars Limited | Wholesale & retail | 2025 |
| Revealthis Ltd | Information & communication | 2025 |
| Revenue Nominees Limited | Extraterritorial | 2004 |
| Reverse NOW Ltd | Health & social care | 2019 |
| Reverser Limited | Professional & scientific | 2025 |
| Revia Finance Ltd | Administrative & support | 2026 |
| Revisewell Limited | Information & communication | 2025 |
| Revive Real Estate SPV Limited | Construction | 2021 |
| Revogue Ltd | Wholesale & retail | 2021 |
| Rewarding YOU Ltd | Wholesale & retail | 2023 |
| Rewired Media Consulting Limited | Professional & scientific | 2025 |
| REX Estates Management Ltd | Real estate | 2025 |
| Rezure Limited | Wholesale & retail | 2025 |
| RF Landscape Ltd | Administrative & support | 2022 |
| RFI Management Ltd | Professional & scientific | 2024 |
| RFM Trading Ltd | Construction | 2011 |
| RG Commercial Solutions Limited | Construction | 2025 |
| RG Transport 2000 Limited | Transport & logistics | 2019 |
| RGP Investments (M/C) Ltd | Real estate | 2020 |
| RGW Int’L Consulting Services Limited | Professional & scientific | 2026 |
| Rhema Crave Kitchen Ltd | Hospitality | 2025 |
| RHI Projects Limited | Financial services | 2013 |
| Rhinos Constructions (Manchester) Ltd | Construction | 2021 |
| Rhodium Stone Ltd Ltd | Professional & scientific | 2026 |
| RIA Traders Ltd | Wholesale & retail | 2024 |
| Rialto Textiles Limited | Wholesale & retail | 1991 |
| Ricebox & Sidebox Limited | Hospitality | 2025 |
| Richard Harmer Consulting Limited | Professional & scientific | 2025 |
| Richardson Mail Limited | Financial services | 2010 |
| Richborough 13 Ltd | Real estate | 2026 |
| Rico Healthcare (Grange) Limited | Health & social care | 2010 |
| Rico Pro-Build Ltd | Construction | 2026 |
| Ricon Recruitment Limited | Administrative & support | 2018 |
| Ridding Road Durham SPV Limited | Construction | 2020 |
| Ridgmont Limited | Hospitality | 1991 |
| Ridhai Company Ltd | Hospitality | 2022 |
| Rift Energy Ltd | Manufacturing | 2025 |
| Rigby Green 2 Ltd | Extraterritorial | 2019 |
| Rigby Green Ltd | Extraterritorial | 2017 |
| Rigglotel Limited | Information & communication | 2019 |
| Right Carpets MK Ltd | Wholesale & retail | 2018 |
| Rightroad Limited | Wholesale & retail | 1991 |
| Rigwell Ltd | Wholesale & retail | 2001 |
| Rihan Contracting Ltd | Construction | 2022 |
| Rimay Group Ltd | Financial services | 2025 |
| Riminov Estates Ltd | Professional & scientific | 2015 |
| Rimonov Limited | Wholesale & retail | 2015 |
| Rimrock Ltd | Administrative & support | 2010 |
| Rinah Limited | Real estate | 2015 |
| Ringley Nominees Ltd | Extraterritorial | 2017 |
| Ringwood Marketing Ltd | Wholesale & retail | 2018 |
| Riptide Creative Agency Ltd | Information & communication | 2021 |
| Risch Designs Ltd | Information & communication | 2016 |
| Rise&Smash Kitchens Ltd | Hospitality | 2026 |
| Risendale Ltd | Extraterritorial | 2004 |
| Rising Moon Productions Limited | Arts & recreation | 2015 |
| Rita Cleaning Services Ltd | Administrative & support | 2025 |
| Rite Bites Limited | Hospitality | 2013 |
| Ritelite UK Limited | Wholesale & retail | 2024 |
| Rivcob Estates Ltd | Real estate | 2021 |
| Riverside Grooming Ltd | Other services | 2013 |
| Riverslea Investments Ltd | Professional & scientific | 1983 |
| Riverview Group Limited | Real estate | 2017 |
| Riverway Estates Limited | Real estate | 2020 |
| Riverwell Avenues Management Company Limited | Households | 2022 |
| RJ Distributors Ltd | Wholesale & retail | 2024 |
| RJ Interior Improvements Limited | Construction | 2021 |
| RJ Media LLP | | 2007 |
| RJC Technology Ltd | Information & communication | 2014 |