| RAD FREI8HT Ltd | Transport & logistics | 2024 |
| RAD Hold Ltd | Financial services | 2023 |
| Radcon Support Services Ltd | Professional & scientific | 2017 |
| Radian Systems Limited | Extraterritorial | 1984 |
| Radibor Limited | Health & social care | 2012 |
| Radicalvertical Ltd | Information & communication | 2019 |
| Radidani Ltd | Transport & logistics | 2020 |
| Radnomics Limited | Professional & scientific | 2024 |
| RAE Aircraft Services Limited | Manufacturing | 2019 |
| Raei Limited | Health & social care | 2014 |
| Rafiki Holdings Ltd | Information & communication | 2020 |
| Rafters Clean Ltd | Administrative & support | 2015 |
| Ragged Robin East Anglia Limited | Wholesale & retail | 2014 |
| Ragged Robin Weddings & Events Ltd | Wholesale & retail | 2020 |
| Rahat Anwara Ltd | Health & social care | 2022 |
| Rahela's Rolling Kitchen Ltd | Hospitality | 2024 |
| Rahma Norwich Ltd | Hospitality | 2024 |
| Rahmaz Ltd | Other services | 2024 |
| Railfreight Europe Limited | Professional & scientific | 1989 |
| Railz Limited | Administrative & support | 2017 |
| Rainbird House Oral Healthcare Limited | Health & social care | 2014 |
| Rainbird Technologies Ltd | Information & communication | 2013 |
| Rainbow Financial Training Ltd | Professional & scientific | 2012 |
| Rainmist Limited | Wholesale & retail | 2021 |
| Rainthorpe Holdings Ltd | Real estate | 2020 |
| Raise Your Profile Ltd | Information & communication | 2009 |
| Rajestan Limited | Hospitality | 2019 |
| Rajnilaya Group LLP | | 2021 |
| Rajnilaya Ltd | Real estate | 2021 |
| Rajpath Ltd | Health & social care | 2026 |
| Rajput Medical Limited | Health & social care | 2020 |
| RAK Powerflushing Ltd | Other services | 2020 |
| Rakcas Ltd | Mining & quarrying | 2018 |
| Rake Drive Residents Management Company Limited | Real estate | 2025 |
| Rakhee Shah Ltd | Health & social care | 2018 |
| Raleigh Court (Norwich) Management Company Limited | Real estate | 1985 |
| Ralfs Ltd | Information & communication | 2021 |
| Rallycap Coffee Ltd | Manufacturing | 2025 |
| Ralos Projects Ltd | Construction | 2021 |
| Ralphie.Tech Ltd | Information & communication | 2017 |
| RAM Corp Ltd | Hospitality | 2024 |
| RAM Practice Limited | Health & social care | 2024 |
| Ram's Taverns Ltd | Hospitality | 2026 |
| Ramblers Financial Services Ltd | Financial services | 2026 |
| Rambling Wild Ltd | Wholesale & retail | 2021 |
| Rami Properties Limited | Real estate | 2020 |
| Ramkri Foods Limited | Hospitality | 2020 |
| Ramkri Property Investments Limited | Real estate | 2016 |
| Ramm & SON Building Services Ltd | Construction | 2021 |
| Rammy & Remmy Construction Ltd | Construction | 2026 |
| Ramp UP Recruiting Ltd | Administrative & support | 2025 |
| Ramsay Mortgages Limited | Financial services | 2021 |
| Ramsey Custom Homes Management Limited | Households | 2022 |
| Ranawake Limited | Professional & scientific | 2006 |
| Ranchwood (Promotions) Limited | Real estate | 1999 |
| Randall Wealth Management Limited | Financial services | 2004 |
| Randalls Developments Ltd | Construction | 2025 |
| Randell's Footcare Limited | Health & social care | 2014 |
| Randell's Healthcare Limited | Health & social care | 2016 |
| Randlewood Ltd | Professional & scientific | 2016 |
| Randon Limited | Real estate | 1997 |
| Ranelagh Road (Ipswich) Management Company Limited | Households | 2006 |
| Range Share Ltd | Manufacturing | 2021 |
| Range Trade Ltd | Wholesale & retail | 2025 |
| Ranger Tyres Limited | Wholesale & retail | 2016 |
| Rani Royale Ltd | Wholesale & retail | 2025 |
| Ranis Dining Limited | Hospitality | 2019 |
| Ranworth Consultants Ltd | Hospitality | 2025 |
| Ranworth Farms Limited | Agriculture & fishing | 1947 |
| Ranya (Norwich) Barber Ltd | Other services | 2022 |
| Ranya Hand Car Wash Ltd | Administrative & support | 2025 |
| Raodinzeus Ltd | Wholesale & retail | 2024 |
| Rapid Construction Solutions Ltd | Construction | 2023 |
| Rapid Fit Servicing Bodywork & Parts Limited | Wholesale & retail | 2025 |
| Rapid Garden Limited | Extraterritorial | 2023 |
| Rapid J Autos Limited | Wholesale & retail | 2014 |
| Rapid Surfaces North East Ltd | Construction | 2022 |
| Rare Bird Alert Limited | Administrative & support | 2018 |
| Rare Rips TCG Ltd | Wholesale & retail | 2026 |
| RAS and Sons Holdings Ltd | Financial services | 2025 |
| RAS and Sons Ltd | Administrative & support | 2025 |
| RAS Drylining Ltd | Construction | 2022 |
| Rasa Bridging Limited | Administrative & support | 2016 |
| Rasa Cafe Ltd | Hospitality | 2019 |
| Rasa Norwich Ltd | Wholesale & retail | 2014 |
| Rascals Events Limited | Arts & recreation | 2024 |
| Rasco Ltd | Professional & scientific | 2001 |
| RASHIDOV2000 Ltd | Transport & logistics | 2022 |
| Raspin Psychology Services Ltd | Health & social care | 2024 |
| Rasul and Rajwani Welfare | Health & social care | 2021 |
| Rasul Rental Properties Limited | Real estate | 2017 |
| Ratcliffe & Co Wines Ltd | Wholesale & retail | 2021 |
| Rated Leads Ltd | Information & communication | 2024 |
| Rather Good Productions Limited | Professional & scientific | 1996 |
| Ratio Holdings Ltd | Extraterritorial | 2022 |
| Rattana Abhay Limited | Health & social care | 2013 |
| Raven Bidco Limited | Administrative & support | 2016 |
| Raven Clothing Ltd | Wholesale & retail | 2026 |
| Raven Development Company Limited | Construction | 1969 |
| Raven Midco Limited | Administrative & support | 2016 |