| R & R Catering Hire Limited | Hospitality | 1988 |
| R & S Plumbing & GAS Services Limited | Construction | 2013 |
| R a Flatt Residential Letting Limited | Real estate | 2008 |
| R a Jones Consulting Limited | Professional & scientific | 2025 |
| R a K Construction (Cotswolds) Ltd | Construction | 2021 |
| R a K Construction (South West) Ltd | Construction | 2020 |
| R a K Investments (South West) Ltd | Real estate | 2021 |
| R a Shaw Construction Limited | Construction | 2025 |
| R and K Stores Limited | Wholesale & retail | 2022 |
| R and L. Jackson (Sevenhampton) LLP | | 2006 |
| R D Barry Enterprises Limited | Real estate | 2024 |
| R D Batty Ltd | Transport & logistics | 2012 |
| R D Brasariee Ltd | Hospitality | 2024 |
| R E People Limited | Administrative & support | 2005 |
| R E Personnel Limited | Administrative & support | 2001 |
| R E Resource Group Limited | Extraterritorial | 2012 |
| R E Technology Solutions Limited | Professional & scientific | 2016 |
| R Eastment Consulting Limited | Professional & scientific | 2012 |
| R H Shackell Limited | Administrative & support | 2002 |
| R J Clarke Contractors Land Ltd | Agriculture & fishing | 2025 |
| R J Clarke Contractors Ltd | Administrative & support | 2016 |
| R J Hall Forklifts Limited | Manufacturing | 1997 |
| R J P Refrigeration Contractors Limited | Other services | 1997 |
| R J Spicer Ltd | Construction | 2025 |
| R K Davies Engineering Limited | Professional & scientific | 2000 |
| R K Decorating Ltd | Construction | 2019 |
| R K F (UK) Ltd | Wholesale & retail | 2011 |
| R K Singh Limited | Health & social care | 2011 |
| R M Lansdown Limited | Real estate | 2025 |
| R P Air Engineering Limited | Manufacturing | 2015 |
| R S Berry & SON Limited | Construction | 2009 |
| R Search Ltd | Administrative & support | 2020 |
| R T Global Enterprises Ltd | Professional & scientific | 2018 |
| R T Henrick Limited | Wholesale & retail | 2022 |
| R W & B Services Limited | Professional & scientific | 2014 |
| R Williams Consultants Limited | Water & waste | 2005 |
| R&A Pro Services Ltd | Professional & scientific | 2020 |
| R&J Property Limited | Real estate | 2019 |
| R&J Williams Holdings Limited | Financial services | 2022 |
| R&M Security Consultancy Ltd | Administrative & support | 2026 |
| R&P Cheltenham Limited | Manufacturing | 1997 |
| R&P Engineering LLP | | 2002 |
| R&R Properties and Services Ltd | Real estate | 2025 |
| R. a. H. (Orchard Court) Limited | Households | 1988 |
| R. a. O'Donnell Jewellers Ltd | Wholesale & retail | 2012 |
| R. Partridge (Cassington) Limited | Real estate | 1959 |
| R. S. Pickering & Son's Ltd | Wholesale & retail | 2009 |
| R.A. Modelling Ltd | Other services | 2020 |
| R.A.H. (Berkeley House) Limited | Households | 1988 |
| R.C.Comms (Gloucester) Limited | Information & communication | 2019 |
| R.F.Beard Limited | Construction | 1920 |
| R.R.S. Land & Property Development Ltd | Real estate | 2014 |
| R2 System Solution Ltd | Wholesale & retail | 2025 |
| R3 Digital Ltd | Information & communication | 2019 |
| R360 Limited | Education | 2016 |
| R4R Properties Ltd | Real estate | 2019 |
| R76 Acquisitions Ltd | Real estate | 2025 |
| R76 Ltd | Extraterritorial | 2025 |
| RA & RA Ltd | Construction | 2018 |
| RA Airport Chauffeur Ltd | Transport & logistics | 2025 |
| Rabia Group Ltd | Administrative & support | 2022 |
| Rabia Properties Ltd | Real estate | 2019 |
| Rabo's Property Maintenance Limited | Construction | 2024 |
| Racastram Investments Limited | Real estate | 2013 |
| Raccoon Art and Design Limited | Professional & scientific | 2021 |
| Racecourse Holdings Trust Limited | Professional & scientific | 1966 |
| Racecourse Investments Limited | Extraterritorial | 2010 |
| Rachel Wallace Consulting Ltd | Education | 2012 |
| Rachelartdesign Limited | Professional & scientific | 2012 |
| Racing Bronze Ltd | Arts & recreation | 2019 |
| Radar INS Ltd | Financial services | 2024 |
| Radars Consulting Ltd | Professional & scientific | 2024 |
| Radcombe Services Limited | Households | 2016 |
| Radford Windows Limited | Construction | 2015 |
| Radio Technical Services EOT Limited | Financial services | 2026 |
| Radio Trading Desk Limited | Professional & scientific | 2012 |
| Radioactive Frog Ltd. | Professional & scientific | 2016 |
| Radix Traffic Limited | Manufacturing | 1987 |
| Radko Ltd | Education | 2023 |
| Radnet Technologies Limited | Wholesale & retail | 2025 |
| Rads Enterprises Ltd | Information & communication | 2024 |
| RAE Wolf Ltd | Professional & scientific | 2026 |
| Raffa the Gaffa Ltd | Construction | 2026 |
| Raffa Transport Ltd | Transport & logistics | 2017 |
| Rafferty Roofing Ltd | Construction | 2017 |
| Rafflegaff Ltd | Wholesale & retail | 2025 |
| Raggedy MAN Press Ltd | Extraterritorial | 2023 |
| Raglan Court Management Company Limited | Households | 2007 |
| Railway Buildings Management Company Limited | Professional & scientific | 1998 |
| Railway Paths Limited | Professional & scientific | 1998 |
| Railway Ventures Limited | Transport & logistics | 2026 |
| Rain Group Limited | Hospitality | 2022 |
| Rainbow Nutrition Ltd | Health & social care | 2020 |
| Rainbow Pride Ltd | Arts & recreation | 2024 |
| Rainbow Transformations CIC | Administrative & support | 2022 |
| Rainbowls Stroud Limited | Hospitality | 2023 |
| Raindog Films Limited | Information & communication | 2012 |
| Raine and Mason Limited | Manufacturing | 2021 |
| Raine Fairbairn Management Limited | Other services | 1960 |
| Rainiko Ltd | Energy | 2019 |