| Risk Management UK Limited | Professional & scientific | 2008 |
| Risk Security Management (SW) Ltd | Administrative & support | 2026 |
| Ristorante Sapori Limited | Hospitality | 2019 |
| River EXE Cafe Limited | Hospitality | 2012 |
| River EXE Ferries Limited | Transport & logistics | 2025 |
| River EXE Group Limited | Financial services | 2014 |
| River EXE Living Limited | Construction | 2025 |
| River EXE Marine Services Limited | Administrative & support | 2023 |
| River EXE Partnership Limited | Wholesale & retail | 2016 |
| River Meadows (NO.2) Management Company Limited | Households | 2003 |
| River Meadows Management Co Limited | Households | 1993 |
| Riverah Realty Limited | Real estate | 2018 |
| Riverdale Estate (Seaton) Limited | Real estate | 1966 |
| Riverside Cafe Exeter Limited | Hospitality | 2003 |
| Riverside Court Limited | Administrative & support | 1981 |
| Riverside Quarter Ltd | Real estate | 2018 |
| Riverside Tiverton Management Limited | Households | 2017 |
| Riviera Formwork Ltd | Construction | 2021 |
| Riviera Slots Ltd | Administrative & support | 2024 |
| RJ Collectibles Ltd | Wholesale & retail | 2026 |
| RJ Dowding Property Limited | Real estate | 2024 |
| RJ Toms Plumbing & Heating Limited | Construction | 2013 |
| RJB Aviation Limited | Professional & scientific | 2023 |
| RJG Engineering Consultancy Ltd | Professional & scientific | 2023 |
| RJG Homes Ltd | Real estate | 2022 |
| RJS (SW) Limited | Construction | 2018 |
| Rjwm Financial Solutions Ltd | Financial services | 2026 |
| RL Taylor Crushing Limited | Extraterritorial | 2010 |
| RL Taylor Haulage Limited | Mining & quarrying | 1995 |
| RL Taylor Holdings Limited | Extraterritorial | 2010 |
| RLA Pharma Ltd | Wholesale & retail | 2026 |
| RLB Groundworks and Civils Ltd | Construction | 2022 |
| RLD Quality Limited | Professional & scientific | 2020 |
| RLM Investments Limited | Real estate | 2016 |
| RM FM Limited | Water & waste | 2023 |
| RM Thermal Ltd | Construction | 2013 |
| RMC SW Limited | Wholesale & retail | 2013 |
| Rmcommerce Ltd | Wholesale & retail | 2013 |
| Rmfc Locksmith Ltd | Administrative & support | 2026 |
| RMG Motors & Body Repairs Limited | Wholesale & retail | 2025 |
| RML (SW) Ltd | Real estate | 2019 |
| Rmland Ltd | Real estate | 2013 |
| RMP Landscaping Ltd | Administrative & support | 2022 |
| Rmsh Limited | Wholesale & retail | 2025 |
| Rmsw Investments Limited | Real estate | 2006 |
| RMT Law Limited | Professional & scientific | 2024 |
| RNC Management Company Ltd | Real estate | 2020 |
| Roadform Civil Engineering Company Limited | Construction | 1988 |
| Roam Design Build & Maintain Limited | Construction | 2021 |
| Roam Services Limited | Professional & scientific | 2019 |
| Roar Centre Ltd | Education | 2025 |
| ROB and Rens' Cleaning Services Ltd | Administrative & support | 2025 |
| ROB Pugh Electrical Ltd | Construction | 2022 |
| Rob's POP UP Restaurant Limited | Hospitality | 2019 |
| Robbins Medical Services Limited | Health & social care | 2015 |
| Robert Cole Agricultural Engineers Limited | Wholesale & retail | 2003 |
| Robert G Tudor Limited | Professional & scientific | 2008 |
| Robert Veitch & SON Limited | Professional & scientific | 1927 |
| Robert Williams Limited | Hospitality | 2004 |
| Robert Winstanley and Co Limited | Construction | 2001 |
| Roberts & Prowse (Swindon) Limited | Manufacturing | 1999 |
| Roberts of Devon Limited | | 1981 |
| Robertson Eadie Limited | Construction | 2002 |
| Robin Flying Club Ltd | Other services | 1996 |
| Robin Flying Group | Education | 2019 |
| Robin Jones Architect Limited | Professional & scientific | 2003 |
| Robinpurple@ Limited | Wholesale & retail | 2019 |
| Robins Law Ltd | Professional & scientific | 2022 |
| Robinson Jary Ltd | Professional & scientific | 2016 |
| Robinson Plant Limited | Administrative & support | 2004 |
| Robolights Limited | Manufacturing | 2002 |
| Roborough Developments (SW) Ltd | Construction | 2022 |
| Roborough Developments Ltd | Construction | 2020 |
| Robotic Chef Limited | Hospitality | 2018 |
| Robs Fish Bar Limited | Hospitality | 2002 |
| Robson Shaw Limited | Professional & scientific | 2017 |
| Roche MOT & Tyre Centre Ltd | Wholesale & retail | 2015 |
| Rochelles Ltd | Wholesale & retail | 2006 |
| Rock 2 Recovery CIC | Health & social care | 2015 |
| Rock and Roll Rental Limited | Extraterritorial | 2012 |
| Rock Bridge Consultancy Ltd | Professional & scientific | 2019 |
| Rock Bridge Property Ltd | Real estate | 2017 |
| Rock Chiropractic DC Limited | Health & social care | 2015 |
| Rock Coaching CIC | Health & social care | 2025 |
| Rock House (Exeter) Management Company Limited | Households | 2012 |
| Rock Physiotherapy Exeter Limited | Health & social care | 2021 |
| Rock Solid Processing Limited | Water & waste | 2016 |
| Rockbox Ltd | Hospitality | 2024 |
| Rockside Holdings Ltd | Professional & scientific | 2021 |
| Rockstar Night Ltd | Hospitality | 2025 |
| Rocksteady Training and Promotions Limited | Administrative & support | 2009 |
| Rocky Gull Limited | Real estate | 1990 |
| Rodgers Industrial Estate Ltd | Real estate | 2012 |
| Rodney Spiller Wealth Management Ltd | Professional & scientific | 2013 |
| Roein Ltd | Financial services | 2025 |
| Rogamo Ltd | Wholesale & retail | 2020 |
| Rogers & Bercht Ltd | Real estate | 2018 |
| Rogeston Properties Ltd | Real estate | 2025 |
| Rogue Motion Ltd | Wholesale & retail | 2025 |
| ROJ (SW) Ltd | Hospitality | 2023 |