| Rivco Investments Ltd | Real estate | 2026 |
| River View London Ltd | Administrative & support | 2022 |
| Riverdale Mahoney Limited | Manufacturing | 1988 |
| Riverside (Ware) Ltd | Construction | 2020 |
| Riverside Early Years Training Limited | Administrative & support | 2005 |
| Riverside Heights Management Company Limited | Households | 2004 |
| Riverside Place (Knutsford) Management Company Limited | Households | 2014 |
| Riverside Point (Warrington) Management Company Limited | Households | 2013 |
| Riverside Wharf (Northampton) Management Company Limited | Households | 2002 |
| RJ Cross Ltd | Professional & scientific | 2024 |
| Rjaa 2003 Limited | Professional & scientific | 2002 |
| RJB Commerce Ltd | Wholesale & retail | 2026 |
| RJP Flooring Ltd | Construction | 2019 |
| RJT Plumbing and Heating Limited | Construction | 2024 |
| RJW Property Limited | Real estate | 2022 |
| RMG Asset Management Limited | Professional & scientific | 2001 |
| RMG Client Services Limited | Real estate | 2002 |
| Robert Craig Property Services Limited | Real estate | 2000 |
| Robert Gibbs (Contracting) Company Limited | Wholesale & retail | 1986 |
| Robertson Court Management Company Limited | Households | 2002 |
| Robinson and Sons Investments Limited | Financial services | 2012 |
| Robinsons Ground Maintenance Company Limited | Administrative & support | 2015 |
| Roborough Eco Homes Residents Management Company Limited | Households | 2017 |
| Robson Place Management Company Limited | Households | 2007 |
| ROCKA77 Limited | Hospitality | 2025 |
| Rockafella's 77 Limited | Other services | 2022 |
| Rocket Content Ltd | Professional & scientific | 2020 |
| Rocklan Limited | Information & communication | 2017 |
| Rodenbury Management Company Limited | Households | 1988 |
| Rodman Lettings Limited | Real estate | 2020 |
| Roebuck Gardens Management Company Limited | Households | 2005 |
| Roker Park (Sunderland) Management Company Limited | Households | 1998 |
| Rolathene Limited | Wholesale & retail | 1989 |
| Roltons Limited | Construction | 2021 |
| Romeonyc Ltd | Wholesale & retail | 2024 |
| Romstable Limited | Wholesale & retail | 1977 |
| Roofi & Co Ltd | Construction | 2026 |
| Room at the Top Recruitment Limited | Administrative & support | 2009 |
| Roro Logistics Ltd | Transport & logistics | 2014 |
| Rosa's Electrical Limited | Construction | 2025 |
| Rosali Ltd | Wholesale & retail | 2010 |
| Rose & Crown Management Company Limited | Real estate | 2000 |
| Rosemont Property Management Limited | Households | 2000 |
| Rosemoor (NO. 1) Management Company Limited | Households | 2007 |
| Rosemoor (NO. 2) Management Company Limited | Households | 2007 |
| Rosescu Ltd | Transport & logistics | 2019 |
| Rosewood & Brook House Ltd | Health & social care | 2006 |
| Rosewood Park LH Residents Management Company Limited | Households | 2017 |
| ROT Punkt UK Ltd | Other services | 2014 |
| Rotary Club of Hoddesdon Benevolent Fund Limited | Other services | 2016 |
| Rotunda (Kingswood) Management Limited | Households | 2010 |
| Rough Magicke Drama Limited | Education | 2013 |
| Roundwood (Garforth) Management Company Limited | Households | 2018 |
| Roussillon Park Management Company Limited | Households | 2011 |
| Rowlands (Food Providers) Limited | Wholesale & retail | 1941 |
| ROX Trans Ltd | Transport & logistics | 2018 |
| Roya Fashion Limited | Professional & scientific | 2018 |
| Royal Bowland Park Residents Management Company Limited | Households | 2021 |
| Royal Park (Daventry) Management Company Limited | Households | 2004 |
| Rozzey Wine Ltd | Wholesale & retail | 2016 |
| RP Recovery Ltd | Water & waste | 2023 |
| RPG Structure Ltd | Construction | 2026 |
| Rsmccomb Services Ltd | Administrative & support | 2022 |
| RSR Bodyworx and Detailing Ltd | Other services | 2019 |
| RTR Plumbing and Heating Ltd | Construction | 2019 |
| RTR Property Solutions Ltd | Administrative & support | 2025 |
| Ruby Environmental Limited | Professional & scientific | 2016 |
| Ruby Pixel Limited | Information & communication | 2014 |
| Rugby (Bilton Court Northern) Management Company Limited | Households | 2006 |
| Runshaw Management Company Limited | Households | 2003 |
| Runton Investments Limited | Financial services | 2007 |
| Rushmore Grange (Washington) Management Company Limited | Households | 2006 |
| Russ Builders Limited | Construction | 2008 |
| Russell Stone Fixing Ltd | Construction | 2004 |
| Russo's Kitchen Limited | Hospitality | 2025 |
| Rutherford Park (Rochdale) Management Company Limited | Households | 2005 |
| Ryburn Vale Ripponden Management Company Limited | Real estate | 2006 |
| RYE Catering Ltd | Hospitality | 2022 |
| RYE House Laser Combat Limited | Arts & recreation | 2010 |
| RYE House Village Management Company Limited | Households | 1999 |
| RYE Park Cafe & Restaurant Ltd | Hospitality | 2008 |
| RYE Park Maintenance Limited | Administrative & support | 2011 |
| RYE Road Ltd | Other services | 2022 |
| Ryewood Residents Management Company Limited | Professional & scientific | 2012 |
| S & D Propertysmiths Ltd | Construction | 2024 |
| S & L Ices Ltd | Wholesale & retail | 2018 |
| S & L Smart Solutions Ltd | Other services | 2011 |
| S & N Lettings Ltd | Real estate | 2020 |
| S & P New Homes Ltd | Construction | 2021 |
| S & R Electrical & Security Services Limited | Construction | 2002 |
| S Cristina Ltd | Transport & logistics | 2024 |
| S J Roofing Ltd | Construction | 2025 |
| S N Samuels Ltd | Construction | 2024 |
| S P Cranstone Limited | Construction | 2013 |
| S Robles Ltd | Transport & logistics | 2019 |
| S T W Building Services Ltd | Construction | 2026 |
| S W Property Services & Maintenance Ltd | Construction | 2024 |
| S&R Construction and Electrical Limited | Construction | 2025 |
| S.P.T. Electrical Installations Ltd | Construction | 2013 |
| S.R. Landscapes Limited | Extraterritorial | 2003 |