| Reaper One Seven Ltd | Wholesale & retail | 2017 |
| Rebuck Law Limited | Professional & scientific | 2009 |
| Recoco Property Limited | Real estate | 2015 |
| Recruiteasy Limited | Administrative & support | 2020 |
| Recruitment Shark Ltd | Administrative & support | 2018 |
| Recur Studio Ltd | Professional & scientific | 2015 |
| Red COW Village Amenity Limited | Households | 2013 |
| Red Dart Media Ltd | Information & communication | 2019 |
| Red Earth Landscaping Ltd | Administrative & support | 2013 |
| Red Mullet Properties Ltd | Real estate | 2021 |
| Red Rock Essex Limited | Hospitality | 2025 |
| Redback Cards Holdings Limited | Financial services | 2021 |
| Redback Cards Limited | Wholesale & retail | 2016 |
| Redbay Construction Limited | Construction | 2013 |
| Redfern Studios Limited | Education | 2023 |
| Redhill Developments (SW) Ltd | Real estate | 2025 |
| Redrock Property Maintenance Co Ltd | Households | 2023 |
| Redzarty Limited | Manufacturing | 2020 |
| Regal Estates South West Ltd | Construction | 2022 |
| Regarth Land Company Limited | Real estate | 1964 |
| REGEN360 Limited | Wholesale & retail | 2025 |
| Regenco | Education | 1998 |
| Regency Woodlands Ltd | Households | 2020 |
| Rego Exploration Limited | Mining & quarrying | 2015 |
| Reliant Metal Forming Limited | Manufacturing | 2000 |
| Relocate Homes Limited | Real estate | 2017 |
| Renaissance Conservatories Limited | Construction | 2013 |
| Rendells LLP | | 2017 |
| Render-Dry Limited | Construction | 2002 |
| Renewables Experts Limited | Professional & scientific | 2013 |
| Renovare Limited | Manufacturing | 1995 |
| Rental Properties 4 Life Limited | Real estate | 2025 |
| Rentec (SW) Ltd | Construction | 2020 |
| Rentexe Ltd | Wholesale & retail | 2018 |
| Renwick & Partners (UK) Limited | Professional & scientific | 2016 |
| Repairsmart UK Ltd | Other services | 2009 |
| Residents of the Old Town Hall, ST. Marychurch Ltd | Households | 2024 |
| Resili Media Limited | Information & communication | 2025 |
| Resin Transformations Limited | Extraterritorial | 2015 |
| Resolve Home Improvements Ltd | Construction | 2021 |
| Resourceful Bookkeeping Ltd | Professional & scientific | 2023 |
| Rest in Fleece Ltd | Other services | 2021 |
| Retail Advisory Group Ltd | Information & communication | 2024 |
| Retune SW Ltd | Wholesale & retail | 2024 |
| Revelations Hair Studio Ltd | Other services | 2022 |
| Revive Cosmetic Treatments Limited | Health & social care | 2006 |
| Revolution Marine Engineering Ltd. | Manufacturing | 2020 |
| Revolver (Holdings) Limited | Professional & scientific | 2001 |
| Rewlea Ltd | Arts & recreation | 2014 |
| RH Carpenters (SW) Ltd | Construction | 2026 |
| RH TM Support Limited | Professional & scientific | 2023 |
| Rhenish Tower (Holdings) Ltd | Financial services | 2023 |
| Rhino Play (SW) Limited | Construction | 2019 |
| Rich Legacy Legal Services Ltd | Professional & scientific | 2025 |
| Richard a Allen Consulting Limited | Other services | 2017 |
| Richard Armitage Wealth Management LLP | | 2022 |
| Richards Estates & Lettings Ltd | Real estate | 2025 |
| Richmond Building Devon Ltd | Construction | 2020 |
| Ridgeway Medical Ltd | Health & social care | 2022 |
| Rigel Assets Ltd | Real estate | 2020 |
| Right Approach HR Limited | Administrative & support | 2013 |
| Right Choice Admin Ltd | Administrative & support | 2023 |
| Rimcka Productions International Limited | Information & communication | 2005 |
| Rimone Homes Ltd | Real estate | 2020 |
| Rinseout Ltd | Arts & recreation | 2008 |
| Riva Training Limited | Health & social care | 2014 |
| Rive-It Limited | Other services | 2021 |
| River & Ridge Estate Agents Ltd | Real estate | 2026 |
| River Lemon Consultancy Limited | Professional & scientific | 2019 |
| River Lemon Retreats Ltd | Arts & recreation | 2015 |
| River Shipping Limited | Financial services | 2014 |
| River Teign Shellfish Limited | Agriculture & fishing | 2010 |
| Riverbank Construction (SW) Limited | Construction | 2014 |
| Riverdown Limited | Agriculture & fishing | 2002 |
| Riverside Hospitality Limited | Hospitality | 2025 |
| Riverside Marine SW Ltd | Manufacturing | 2026 |
| Riverside Property Limited | Professional & scientific | 2009 |
| Riverstone Capital Ltd | Financial services | 2021 |
| Riviera Construction Ltd | Construction | 2025 |
| Riviera Decking Limited | Construction | 2010 |
| Riviera Heights (Management) Ltd | Households | 2021 |
| Riviera Holdings Torbay Limited | Financial services | 2013 |
| Riviera Hot Tubs Limited | Manufacturing | 2013 |
| Riviera Labels Limited | Manufacturing | 1998 |
| Riviera Mortgages Limited | Financial services | 2011 |
| Riviera Stone Group Ltd | Wholesale & retail | 2024 |
| Riviera Stonemasons Limited | Manufacturing | 2011 |
| Rivieracraft Ltd | Manufacturing | 2018 |
| RJ Beer Contracting Limited | Agriculture & fishing | 2012 |
| RJH (SW) Limited | Professional & scientific | 2024 |
| RJK Property and Land Ltd | Real estate | 2026 |
| RJW Commercial Services Ltd | Professional & scientific | 2022 |
| Rjwp Holdings Ltd | Financial services | 2024 |
| RKB Construction (South West) Limited | Wholesale & retail | 2002 |
| RL Paving Limited | Construction | 2014 |
| RLS Carpentry Building Services Ltd | Construction | 2020 |
| RMC: Psychological Services Ltd | Professional & scientific | 2021 |
| Rmechanics Limited | Wholesale & retail | 2020 |
| RMK Electrical Contractors Ltd | Construction | 2023 |
| Roadform Plant Limited | Extraterritorial | 1992 |