| Retailcraft Limited | Wholesale & retail | 2024 |
| Retrobox Clothing Ltd | Wholesale & retail | 2024 |
| Return on Inclusion Limited | Real estate | 2025 |
| Revival Autos Limited | Wholesale & retail | 2026 |
| Reyes-Ronso Limited | Real estate | 2020 |
| RF Fintech Limited | Information & communication | 2026 |
| Rftb T/A LE Bar a VIN Limited | Hospitality | 2013 |
| RG Infotech Ltd | Information & communication | 2021 |
| Rgtree Limited | Administrative & support | 2019 |
| RH Traction Services Ltd | Transport & logistics | 2021 |
| Rhesaw Consulting Limited | Professional & scientific | 2013 |
| Rhino Design Ltd | Professional & scientific | 2020 |
| Rhino Rail Consultants Limited | Construction | 2014 |
| Rhjb Cambridge Ltd | Real estate | 2022 |
| Rhoda Maina Limited | Administrative & support | 2017 |
| Rhythm Health Limited | Manufacturing | 2014 |
| Rica’S Whitstable Ltd | Administrative & support | 2024 |
| Riccy Ltd | Administrative & support | 2023 |
| Rice Drop Group Limited | Hospitality | 2023 |
| Rich Hoxley Limited | Administrative & support | 2024 |
| Richard Jarman Production Management Limited | Arts & recreation | 2014 |
| Richard Pattison Limited | Administrative & support | 2012 |
| Richsteve Limited | Real estate | 2012 |
| Ridgecroft Investments Ltd | Real estate | 2014 |
| Rifaray Limited | Wholesale & retail | 2012 |
| Riorge Solutions Ltd | Information & communication | 2012 |
| Rise London Limited | Hospitality | 2018 |
| Rixon and Murray Developments Ltd | Construction | 2025 |
| Rixon, Rixon and Murray Ltd | Construction | 2016 |
| Riya Healthcare Limited | Public administration | 2021 |
| RKM Food Services Limited | Wholesale & retail | 2025 |
| RLC Electrical Limited | Construction | 2024 |
| RM New Horizon Limited | Real estate | 2025 |
| RMI Properties Limited | Real estate | 2015 |
| RN Roofing Limited | Construction | 2003 |
| RNC Plant Limited | Construction | 2019 |
| RNT Developments Ltd | Construction | 2017 |
| Roak Mtjg Limited | Professional & scientific | 2021 |
| Roar Source Limited | Professional & scientific | 2018 |
| Robert Ball Illustration Limited | Arts & recreation | 2013 |
| Robert Petty Consultancy Limited | Other services | 2009 |
| Robey Resources Ltd | Administrative & support | 2025 |
| Robin Hood Service Station Limited | Wholesale & retail | 2002 |
| Robish Limited | Professional & scientific | 2008 |
| Robmar Property Limited | Real estate | 2023 |
| Robson Frankham Limited | Professional & scientific | 2020 |
| Robus Group Ltd | Financial services | 2023 |
| Robus Marketing Limited | Professional & scientific | 2017 |
| Robynson Ltd | Professional & scientific | 2026 |
| Rock Electrical Contractors Ltd | Construction | 2017 |
| Rocket Boots Theatre Ltd | Other services | 2014 |
| Rodan Polished Plaster Limited | Construction | 2015 |
| Rodanto Limited | Wholesale & retail | 1953 |
| Roger Davison Limited | Administrative & support | 2005 |
| Rohit Singh Limited | Professional & scientific | 2025 |
| Rojak Ltd | Administrative & support | 2012 |
| Roller Garage Solutions Ltd | Construction | 2021 |
| Rolling Kitchen Ltd | Administrative & support | 2024 |
| Rolo Automation Limited | Wholesale & retail | 2023 |
| Roman Bathroom Studio Limited | Wholesale & retail | 2004 |
| Roosters Consultancy Company Limited | Wholesale & retail | 2014 |
| Rose Bruford (International) Limited | Hospitality | 1990 |
| Roseau Carp Fishery Limited | Agriculture & fishing | 2017 |
| Rosef Ltd | Hospitality | 2023 |
| Rosepride Homes Limited | Construction | 2006 |
| Rosepride Limited | Construction | 1989 |
| Rosepride Properties Ltd | Construction | 2002 |
| Rosiebelle Properties Limited | Real estate | 2024 |
| Ross Malin Carpentry Limited | Construction | 2013 |
| Rosshill Limited | Administrative & support | 2020 |
| Rossos Poole Limited | Hospitality | 2020 |
| Route Services Limited | Professional & scientific | 2021 |
| Rowan Construction Services Limited | Construction | 2023 |
| Rowell Roofing Ltd | Construction | 2024 |
| Roxrose Projects Ltd | Professional & scientific | 2008 |
| Royalton Investments Limited | Professional & scientific | 2018 |
| RPB Engineering Limited | Professional & scientific | 2019 |
| RPC Project Managment Limited | Construction | 2023 |
| RPL Utilities Limited | Energy | 2017 |
| RPM Driver Services Limited | Transport & logistics | 2020 |
| RR Granites Limited | Manufacturing | 2020 |
| RR Management Group Limited | Professional & scientific | 2025 |
| RRK Catering Ltd | Hospitality | 2020 |
| RRK Design Ltd | Wholesale & retail | 2025 |
| RRM Management Services Limited | Construction | 2024 |
| RS Drinks Retails Ltd | Wholesale & retail | 2026 |
| RSH Heating Specialists Limited | Construction | 2015 |
| RSM Asset Limited | Real estate | 2017 |
| RSN 24HR Homecare Ltd | Professional & scientific | 2016 |
| RT Drafting Solutions Limited | Professional & scientific | 2015 |
| RT Hotels Limited | Hospitality | 2014 |
| RT Telecom Services Limited | Information & communication | 2007 |
| RTS Property Development Ltd | Real estate | 2023 |
| RTT Consultancy Services Limited | Administrative & support | 2017 |
| Ruadhan Property Ltd | Real estate | 2021 |
| Rubicon Securities Limited | Professional & scientific | 2013 |
| Ruby Broking Ltd | Financial services | 2011 |
| Rugby Media Limited | Administrative & support | 2015 |
| Russel Bock Ltd | Administrative & support | 2016 |
| Russell King Associates Limited | Administrative & support | 2014 |