| Riffi's Ltd | Health & social care | 2024 |
| Riliument Ltd | Administrative & support | 2024 |
| Ring Data LLP | | 2016 |
| Rivageuk Ltd | Manufacturing | 2021 |
| River House (Bewdley) Management Limited | Real estate | 2016 |
| Riverbright Limited | Administrative & support | 2015 |
| Rivergate View Limited | Administrative & support | 2026 |
| Riviera Home (UK) Limited | Wholesale & retail | 2011 |
| RJ Programmes Limited | Wholesale & retail | 2009 |
| RJB Rentals Limited | Real estate | 2025 |
| RJC Carpets & Flooring Ltd | Construction | 2015 |
| RJC Wealth Management Ltd | Financial services | 2013 |
| RJR Roofing Ltd | Construction | 2022 |
| RJW Engineering Limited | Administrative & support | 2003 |
| RK Foot Health Limited | Health & social care | 2024 |
| RM Price Limited | Real estate | 2024 |
| RNA Consultancy Ltd | Professional & scientific | 2021 |
| Roan Auto Services Limited | Wholesale & retail | 2002 |
| ROBERT18 Ltd | Transport & logistics | 2022 |
| Roberts & Hyde Ltd | Professional & scientific | 2022 |
| Robtec Automation Limited | Manufacturing | 1982 |
| Rockdeal Property Management (2014) Limited | Households | 2014 |
| Rocket Caravans Limited | Manufacturing | 2012 |
| Rockitfox Ltd | Information & communication | 2021 |
| Rockley Bank Flats Limited | Households | 2013 |
| Rockny House Limited | Health & social care | 2015 |
| Roden House Residents Company Limited | Administrative & support | 2008 |
| Roma Concept Furnishings Ltd | Manufacturing | 2016 |
| Roman Bridge Ltd | Administrative & support | 2021 |
| Romola 8 Ltd | Administrative & support | 2022 |
| Romy Base Ltd | Transport & logistics | 2025 |
| Roofing Solutions (West Midlands) Limited | Construction | 2007 |
| Roofscape Solutions Ltd | Construction | 2024 |
| Roomcroft Ltd | Transport & logistics | 2019 |
| Root Social Ltd | Professional & scientific | 2024 |
| Roptimat Ltd | Administrative & support | 2021 |
| Rose Hill Refridgeration and Electrical Ltd | Manufacturing | 2023 |
| Rose Housing Ltd | Real estate | 2022 |
| Rosemary Bennett Equestrian Limited | Professional & scientific | 2005 |
| Rosemary Bennett Riding School Limited | Arts & recreation | 2015 |
| Roseville House Limited | Real estate | 2011 |
| Ross Environmental Products Ltd | Administrative & support | 2002 |
| Rosscana Ltd | Administrative & support | 2019 |
| Rouminra Ltd | Administrative & support | 2024 |
| Round Roofing Limited | Extraterritorial | 2019 |
| Round the Clock Logistics Ltd | Transport & logistics | 2025 |
| Roundwood Rose Limited | Real estate | 2019 |
| Rousmerch Ltd | Administrative & support | 2021 |
| Rowan Acquisitions Limited | Financial services | 2024 |
| Rowan Steels Limited | Manufacturing | 1978 |
| Rowleybrook Properties Limited | Financial services | 2025 |
| Roxel (UK Rocket Motors) Limited | Manufacturing | 2002 |
| RP Trading AS Hair@Saint Limited | Administrative & support | 2016 |
| RPM Plumbing and Heating Limited | Construction | 2013 |
| RR Electrical Services (Worcs) Ltd | Construction | 2022 |
| RR Jeffery Ltd | Transport & logistics | 2022 |
| RRJ Psychology Ltd | Education | 2020 |
| RS GEN Ltd | Transport & logistics | 2015 |
| RS Property and Developments (Midlands) Ltd | Real estate | 2021 |
| RSW Cartwright Limited | Professional & scientific | 2014 |
| RU Parr Ltd | Construction | 2021 |
| Ruben Transport Ltd | Transport & logistics | 2022 |
| Rubi Management Services (UK) Ltd | Information & communication | 2013 |
| Ruby Kidderminster Ltd | Hospitality | 2022 |
| Rubyflint Ltd | Transport & logistics | 2019 |
| Ruediger Photography Ltd | Professional & scientific | 2006 |
| Rumore Ltd | Wholesale & retail | 2024 |
| Runway Global Limited | Professional & scientific | 2013 |
| Ruskin Properties (Developments) Limited | Construction | 2019 |
| Ruskin Properties Holdings Limited | Real estate | 2025 |
| Ruskin Properties Limited | Construction | 2013 |
| Russell Painter Ltd | Real estate | 2023 |
| RV General Building Limited | Construction | 2019 |
| Ryhazym Ltd | Administrative & support | 2024 |
| Rykors Ltd | Transport & logistics | 2024 |
| Rylevium Ltd | Wholesale & retail | 2024 |
| Rymorium Ltd | Transport & logistics | 2024 |
| Rynium Ltd | Transport & logistics | 2024 |
| Ryniumyst Ltd | Transport & logistics | 2024 |
| Ryqueiz Ltd | Transport & logistics | 2024 |
| Ryquipz Ltd | Transport & logistics | 2024 |
| Rysave Ltd | Transport & logistics | 2024 |
| Rysther Ltd | Transport & logistics | 2024 |
| Rytherium Ltd | Transport & logistics | 2024 |
| Rytherose Ltd | Transport & logistics | 2024 |
| Rythery Ltd | Transport & logistics | 2024 |
| Rythews Ltd | Administrative & support | 2024 |
| Rythin Ltd | Transport & logistics | 2024 |
| Rytones Ltd | Wholesale & retail | 2024 |
| S and C Properties (Kidderminster) Ltd | Real estate | 2020 |
| S FOX Services Ltd | Agriculture & fishing | 2021 |
| S J Davis Design & Build LLP | | 2024 |
| S Kirby Security Systems Ltd | Administrative & support | 2011 |
| S&D Fire Protection Limited | Construction | 2023 |
| S&S Property Collective Ltd | Real estate | 2025 |
| S.D.W. Installations Limited | Construction | 2010 |
| S.H. Controls Ltd | Professional & scientific | 2002 |
| S.I.S Residential Limited | Real estate | 2015 |
| S21 Convenience Ltd | Wholesale & retail | 2022 |
| S4 Mounting System UK Ltd | Manufacturing | 2025 |