| Rejuvenated Residentials Ltd | Real estate | 2026 |
| Relevant Spaces Ltd | Financial services | 2022 |
| Reliant Cars Limited | Extraterritorial | 1997 |
| Reliant Parts World Limited | Administrative & support | 1995 |
| Reload Supplements Limited | Wholesale & retail | 2018 |
| Relyability Limited | Health & social care | 2013 |
| Rendform Limited | Construction | 2024 |
| Renew Kings Ltd | Manufacturing | 2023 |
| Rengas (Midlands) Ltd | Energy | 2026 |
| Renn&Roast Ltd | Hospitality | 2026 |
| Renovareuk.Co.Uk Ltd. | Manufacturing | 2016 |
| Renovated and New Homes Partnership Limited | Financial services | 2000 |
| Renshaw Solutions Ltd | Administrative & support | 2023 |
| Replica Dining Ltd | Hospitality | 2018 |
| Repoint UK Limited | Construction | 2024 |
| Research Hivemind Ltd | Professional & scientific | 2024 |
| Residential and Commercial Engineering Ltd | Construction | 2013 |
| Resilient Solutions Consultancy Limited | Financial services | 2025 |
| Resolute Training Limited | Education | 2005 |
| Restall & Doyle Building Services Ltd | Extraterritorial | 2015 |
| Results Driven Marketing Limited | Information & communication | 2009 |
| Retail Touch UK Limited | Wholesale & retail | 2025 |
| Revamp Massage Ltd | Other services | 2024 |
| Reverse ENG Ltd | Professional & scientific | 2026 |
| Revive Staffordshire C.I.C. | Health & social care | 2023 |
| RF Dining Ltd | Hospitality | 2023 |
| RG14 Limited | Extraterritorial | 2008 |
| RGC Group Limited | Agriculture & fishing | 2014 |
| RGS Midlands Limited | Administrative & support | 2023 |
| RH Carpentry & Joinery Ltd | Construction | 2011 |
| RHS Fitness Limited | Health & social care | 2022 |
| Riayk Limited | Administrative & support | 2016 |
| RIC Consultancy Limited | Professional & scientific | 2012 |
| Richard Court RTM Company Limited | Households | 2011 |
| Richard Ellis Developments Limited | Construction | 2015 |
| Richard King MA Fine Art Limited | Arts & recreation | 2019 |
| Richardson's Property Group Limited | Real estate | 2024 |
| Ricky Potter Transport Limited | Transport & logistics | 2016 |
| Ridgeway Foods Limited | Agriculture & fishing | 2015 |
| Ridgeway Group Limited | Agriculture & fishing | 2015 |
| Ridgewood Homes Ltd | Construction | 2012 |
| Ridgewood Properties (Midlands) Limited | Real estate | 2001 |
| Ridgewood Property Management Limited | Extraterritorial | 2014 |
| Rigfix Developments Limited | Construction | 2017 |
| Rigfix Holdings Limited | Financial services | 2017 |
| Rigfix Ltd | Construction | 2003 |
| Rigfix Regen Limited | Real estate | 2021 |
| Right Place Developments Limited | Real estate | 2025 |
| Right Tool Giveaways Ltd | Construction | 2025 |
| Rimac Fabrications Limited | Manufacturing | 2000 |
| Rising Corporations Ltd | Wholesale & retail | 2024 |
| Ritec Automation Limited | Professional & scientific | 2002 |
| Riteway Plumbing and Heating Services Limited | Construction | 1994 |
| Riverfusion Limited | Professional & scientific | 2024 |
| Rivertek Services (UK) Ltd | Wholesale & retail | 2016 |
| Rivo Digital Ltd | Information & communication | 2018 |
| Rizraz Ltd | Wholesale & retail | 2024 |
| RJ Pubco Limited | Hospitality | 2021 |
| RJA Installations Limited | Construction | 2014 |
| RJC Roofing and Upvc Contractors Limited | Construction | 2024 |
| RJF Painting and Decorating Limited | Construction | 2017 |
| RJF Training Solutions Limited | Education | 2024 |
| RJH Dumper Hire Limited | Administrative & support | 2018 |
| RJH Media Ltd | Information & communication | 2023 |
| RJJ Transport Ltd | Transport & logistics | 2018 |
| RJN Glazing & Installations Limited | Other services | 2014 |
| RKS Property Management Services Limited | Real estate | 2021 |
| RL Premier Installations Ltd | Construction | 2020 |
| RMB Decorators Limited | Construction | 2002 |
| Roadchef Bidco Limited | Professional & scientific | 2014 |
| Roadchef Management Trustees Limited | Professional & scientific | 1993 |
| Roadchef Midco Limited | Professional & scientific | 2014 |
| Roadchef Newco 1 Limited | Professional & scientific | 2014 |
| Roadchef Newco 2 Limited | Professional & scientific | 2014 |
| Roadchef Newco 3 Limited | Professional & scientific | 2015 |
| Roadchef Topco Limited | Professional & scientific | 2014 |
| ROB Norman Music Ltd | Information & communication | 2018 |
| Robert C a Holdings Limited | Financial services | 2021 |
| Robert Paul Kitchens Ltd | Manufacturing | 2022 |
| Roberts-Reaney Ltd | Health & social care | 2015 |
| Robin Hood Maintenance Limited | Households | 2017 |
| Rock IT Music Projects Limited | Education | 2014 |
| Rock Partitions Limited | Construction | 2007 |
| Rockford Construction Limited | Real estate | 2015 |
| Rockstar Corp Ltd | Financial services | 2025 |
| Rockstar Equine Limited | Education | 2026 |
| Rodmersham Management Limited | Professional & scientific | 2025 |
| Roger Clarke Properties Limited | Real estate | 2018 |
| Roger Wootton Ltd | Other services | 2025 |
| Rogers Renovations Building & Landscaping Ltd | Construction | 2025 |
| Rokholt Development Limited | Construction | 1967 |
| Rokholt Haulage Ltd | Transport & logistics | 2026 |
| Roksavage Ltd | Wholesale & retail | 2025 |
| Rolfe and Wills Limited | Wholesale & retail | 2022 |
| Roltun Technical Services Ltd | Construction | 2017 |
| Roman Cory Brickwork Limited | Construction | 2022 |
| Roof Core Limited | Construction | 2026 |
| Rooftrim Limited | Construction | 2003 |
| Root Property Solutions Ltd | Real estate | 2021 |
| Rose Barber Hednesford Ltd | Other services | 2025 |