| Recruitment Solutions (Holdings) Ltd | Financial services | 2012 |
| Recruitment Solutions (South West) Limited | Administrative & support | 1999 |
| Recruitment Workforce Limited | Construction | 2018 |
| Red Bird Holdings Limited | Real estate | 2019 |
| Red Brick Devon Ltd | Hospitality | 2022 |
| Red Cloud Properties Ltd | Real estate | 2015 |
| Red COW Properties Ltd | Real estate | 2024 |
| Red Devon Holdings Limited | Financial services | 2019 |
| Red Dragon (Exeter) Limited | Transport & logistics | 2021 |
| Red Earth Bath Limited | Real estate | 2011 |
| Red Earth Bideford Limited | Construction | 2017 |
| Red Earth Consultancy Limited | Administrative & support | 2008 |
| Red Earth Developments Limited | Construction | 2004 |
| Red Earth Futures Limited | Real estate | 2016 |
| Red Earth Infrastructure Limited | Real estate | 2014 |
| Red Earth Yealm Limited | Construction | 2016 |
| Red Gate Management Ltd | Extraterritorial | 2013 |
| Red Hot Holdings Limited | Financial services | 2021 |
| Red Hot Products Limited | Wholesale & retail | 2009 |
| Red House Management (Exeter) Limited | Households | 2008 |
| Red House Mysteries Ltd | Arts & recreation | 2015 |
| Red Oak Property Developments SW Ltd | Construction | 2024 |
| Red One Ltd | Other services | 2010 |
| Red Pear Sports & Entertainment Limited | Professional & scientific | 2015 |
| Red Rock Geoscience Limited | Professional & scientific | 2011 |
| Red Southwest Ltd | Construction | 2015 |
| Red Stag Developments Limited | Construction | 2020 |
| Red Translations UK Limited | Professional & scientific | 2014 |
| Red Vend Limited | Wholesale & retail | 2025 |
| Redcliffe (CB) Ltd | Health & social care | 2016 |
| Redd Brick Houses Limited | Health & social care | 2018 |
| Redd Nurseries Limited | Health & social care | 2001 |
| Redefining Horizons - Championing Change for Humanitarian Mental Health CIC | Health & social care | 2025 |
| Redhayes Management Company Limited | Households | 2018 |
| Redi to Dine Limited | Hospitality | 2025 |
| Redland Carehome Ltd | Health & social care | 2025 |
| Redland Wealth Management Group Limited | Professional & scientific | 2019 |
| Redlands (Exeter) Limited | Real estate | 2022 |
| Redlands Management Company (Sidmouth) Limited(The) | Households | 1976 |
| Redleif Care Ltd | Health & social care | 2019 |
| Redman Donald Estate Agents Limited | Real estate | 2011 |
| Redman Groundworks Ltd | Construction | 2025 |
| Redman Recruitment Ltd | Administrative & support | 2025 |
| Redmond-Smith Enterprises Ltd | Health & social care | 2019 |
| Rednour Ltd | Wholesale & retail | 2023 |
| Redpunchgames Ltd | Information & communication | 2019 |
| Redraw Internet Limited | Information & communication | 2009 |
| Redrok (UK) Limited | Professional & scientific | 2017 |
| Redsoul Design Limited | Professional & scientific | 2018 |
| Redstone Ecology Ltd | Professional & scientific | 2022 |
| Redstone Hospitality Ltd | Hospitality | 2025 |
| Redvers Court Management Company Limited | Households | 1989 |
| Redwood Salvage Ltd | Water & waste | 2019 |
| Redwoods Accountants (Exeter) Ltd | Professional & scientific | 2025 |
| Redworth Consulting Ltd | Information & communication | 2013 |
| Reed Corporation Ltd | Financial services | 2025 |
| Reed Engineering Ltd | Manufacturing | 2017 |
| Reed Realty Ltd | Construction | 2026 |
| Reedchreed Ltd | Construction | 2025 |
| Reef Business Systems Limited | Professional & scientific | 2007 |
| Reefside Leisure Limited | Hospitality | 2009 |
| Rees Carpets & Flooring Services Ltd | Wholesale & retail | 2022 |
| Rees Commercial Flooring Services Ltd | Wholesale & retail | 2023 |
| Reeves Interim Management Limited | Professional & scientific | 2008 |
| Refactor Software Ltd | Information & communication | 2011 |
| Refedd Limited | Wholesale & retail | 2002 |
| Refresh Building & Maintenance Ltd | Construction | 2023 |
| Refrigerate Ltd | Professional & scientific | 2024 |
| Refrigerated Vehicle Rental Limited | Administrative & support | 2003 |
| Refs on Tour Ltd | Arts & recreation | 2026 |
| Refuel Exeter Ltd | Wholesale & retail | 2023 |
| Refuel Property Holdings Ltd | Real estate | 2026 |
| Refugee Support (Devon) Ltd | Health & social care | 2011 |
| Regal Lettings (South West) Limited | Real estate | 2018 |
| Regal Services Limited | Professional & scientific | 1993 |
| Regen Renov Ltd | Construction | 2024 |
| Regen SW | Professional & scientific | 2002 |
| Regency Walk (Sidmouth) Management Company Limited | Households | 2010 |
| Regency Wines Holdings Limited | Extraterritorial | 2022 |
| Regenesis Wounds and Research Ltd | Health & social care | 2024 |
| Regent ST Ltd | Real estate | 2024 |
| Regents House Heavitree Limited | Households | 2015 |
| Regional & City Airports (Investments) Limited | Financial services | 2019 |
| Regional & City Airports Group Limited | Financial services | 2019 |
| Regional & City Airports Limited | Transport & logistics | 2012 |
| Regional Corporate Solutions Limited | Administrative & support | 2005 |
| Rehuman Consulting Ltd | Professional & scientific | 2023 |
| Reibstein Monsell Consultancy Limited | Health & social care | 2014 |
| Reid Trapnell Plumbing and Heating Limited | Construction | 2008 |
| Reignsupreme Accounting Ltd | Professional & scientific | 2009 |
| Reignsupreme Group Ltd | Financial services | 2024 |
| Reignsupreme Online Ltd | Professional & scientific | 2019 |
| Reiki Rascals Limited | Health & social care | 2012 |
| Release the Hounds Ltd | Other services | 2024 |
| Reliance Financial Limited | Professional & scientific | 2025 |
| Relief Across Borders CIC | Education | 2025 |
| Remade Wessex Limited | Professional & scientific | 2005 |
| Remake IT Ltd | Administrative & support | 2021 |
| REMAP2RACE Franchise Group Ltd | Wholesale & retail | 2023 |
| Remedi Solutions Ltd | Professional & scientific | 2012 |