| Renaatdec Limited | Administrative & support | 2013 |
| Renaissance (Reading) Management Company Limited | Households | 2019 |
| Renaissance Corporate Limited | Professional & scientific | 2008 |
| Rendell & Partners Ltd | Financial services | 2024 |
| Renewable Energy Forum Limited | Professional & scientific | 2000 |
| Renightalize Ltd | Wholesale & retail | 2025 |
| Renovation Developments II Limited | Construction | 2026 |
| Renovation Developments Limited | Construction | 2014 |
| Renyuan Limited | Hospitality | 2024 |
| Reownit Limited | Wholesale & retail | 2025 |
| Repackagingservices.Co.Uk Ltd | Administrative & support | 2019 |
| Repleo Limited | Transport & logistics | 2013 |
| Reppik Partners Ltd | Professional & scientific | 2022 |
| Require Consultancy Ltd | Administrative & support | 2015 |
| Require Executive Ltd | Professional & scientific | 2025 |
| Resilica Care Ltd | Health & social care | 2025 |
| Resilience Movement Ltd | Extraterritorial | 2026 |
| Resilient OPS Ltd | Health & social care | 2024 |
| Resnet Ltd | Information & communication | 2023 |
| Resolution Mediation and Arbitration Limited | Professional & scientific | 2013 |
| Resolve Agency Limited | Administrative & support | 2012 |
| Resource Materials Ltd | Water & waste | 2026 |
| Response Envelopes Limited | Administrative & support | 2007 |
| Restart IT Services Ltd | Information & communication | 2022 |
| Resurgem Limited | Professional & scientific | 2017 |
| Retail Marketing Logistics Limited | Extraterritorial | 2016 |
| Retail Refinishing Limited | Construction | 2012 |
| Retention Dynamics Ltd | Professional & scientific | 2025 |
| Revalcore Ltd | Information & communication | 2026 |
| Reviseiq Ltd | Information & communication | 2026 |
| Revive Limited | Administrative & support | 2005 |
| Revived Tech Donations Ltd | Information & communication | 2025 |
| Revlve Ltd | Information & communication | 2012 |
| REX Garage (Salisbury) Limited | Wholesale & retail | 1965 |
| RG Boyes Properties Ltd | Real estate | 2020 |
| RH45 Game Consulting Limited | Professional & scientific | 2021 |
| RHL Solicitors Limited | Professional & scientific | 2015 |
| Rhodri Thomas Consultancy Ltd | Professional & scientific | 2025 |
| Rhomech Engineering Limited | Manufacturing | 2024 |
| Ribble Music Limited | Arts & recreation | 2023 |
| Richard Bristow Equine Ltd | Professional & scientific | 2019 |
| Richard Burrows Marine Design Ltd | Professional & scientific | 2026 |
| Richard Dennis Consultancy Limited | Professional & scientific | 2013 |
| Richard Hilliard Consulting Limited | Administrative & support | 2001 |
| Richard Lamb Limited | Real estate | 1958 |
| Richard Smith (M I) Limited | Manufacturing | 2003 |
| Richard Tidmarsh Design Limited | Information & communication | 2011 |
| Richardsons Real Estate (South West) Limited | Real estate | 2000 |
| Richmills Limited | Households | 1993 |
| Richmond Bell Architects Limited | Professional & scientific | 2009 |
| Richmond Bell Properties Limited | Real estate | 2019 |
| Richmond Drive Management Company Limited | Households | 2021 |
| Richmond Graphics Limited | Manufacturing | 2008 |
| Richmond Riverside Management Company Limited | Households | 2022 |
| Rick Connell Limited | Professional & scientific | 2008 |
| Rick Morris Groundworks Ltd | Administrative & support | 2020 |
| Rickett, Baldwin (Insurance Agents) Limited | Financial services | 1996 |
| Ridewalk Properties Limited | Construction | 1996 |
| Ridge Holdings Eire Limited | Financial services | 2021 |
| Ridleaves Limited | Agriculture & fishing | 2013 |
| Ridleys Orchard (Whitton) Management Company Limited | Households | 2021 |
| Right Track Wellbeing Ltd | Education | 2026 |
| Riley & GUY Limited | Construction | 2003 |
| Riley Residential Limited | Construction | 2023 |
| Ring Fort Management Limited | Households | 2014 |
| Ringend Flat Management Limited | Extraterritorial | 1994 |
| Ringwood and Verwood Glass Ltd | Construction | 2019 |
| Rippington Enterprises Limited | Education | 2012 |
| Rippington Ltd | Wholesale & retail | 2024 |
| Ripple Trustee Company Limited | Professional & scientific | 2019 |
| Rise Brickwork Limited | Construction | 2018 |
| Rising Events Limited | Arts & recreation | 2025 |
| Risk Security Ltd | Administrative & support | 2018 |
| Risky Business UK Ltd | Professional & scientific | 2011 |
| Rivaya Ltd | Wholesale & retail | 2012 |
| Rivendell Engineering Services Limited | Manufacturing | 2024 |
| River Bourne Community Farm CIC | Arts & recreation | 2008 |
| River Bourne Services Limited | Hospitality | 2023 |
| River Walk (Tonbridge) Management Company Limited | Households | 2025 |
| Riverside Gardens Tisbury Management Limited | Professional & scientific | 1983 |
| Riverside House (Developments) Limited | Construction | 2026 |
| Riverside Mews Flats (Management Company) Downton Limited | Households | 1996 |
| Riverside Publishing Solutions Limited | Information & communication | 2013 |
| Riverside Tennis Limited | Arts & recreation | 2005 |
| Rixon Holdings Ltd | Information & communication | 2025 |
| RJB Mechanical & Pipe Installations Limited | Professional & scientific | 2018 |
| RK Actuarial Services Ltd | Professional & scientific | 2017 |
| RKD Property Holding Ltd | Real estate | 2024 |
| RKF Group Limited | Wholesale & retail | 2022 |
| RLB Global Services Ltd | Professional & scientific | 2016 |
| Rlkc Limited | Administrative & support | 2014 |
| Rmpc Consulting Ltd | Professional & scientific | 2019 |
| Rmphc Limited | Real estate | 2020 |
| Rmprt UK Ltd. | Professional & scientific | 2021 |
| Rmvn Limited | Real estate | 1951 |
| RNR Carpentry Ltd | Construction | 2018 |
| Road Rental Services Limited | Administrative & support | 2023 |
| Road Trip Europe Ltd | Transport & logistics | 2016 |
| Road Warriors of Salisbury Ltd | Wholesale & retail | 2026 |
| Roadfridge Limited | Wholesale & retail | 2003 |