| Rewarehouse Limited | Extraterritorial | 2025 |
| Rewearhouse Limited | Wholesale & retail | 2025 |
| Rewild Wellbeing CIC | Health & social care | 2025 |
| REX Camper Rentals Ltd | Administrative & support | 2023 |
| REX Metal Recycling Ltd | Water & waste | 2021 |
| Rexapp Limited | Information & communication | 2026 |
| Reximinca Limited | Real estate | 2010 |
| Rexwell Software Ltd | Information & communication | 2021 |
| Reydon Pizza Company Ltd | Hospitality | 2026 |
| Reystar Rail Limited | Professional & scientific | 2016 |
| Reywood Holdings Ltd | Financial services | 2018 |
| Rezidenz Holdings Ltd | Real estate | 2022 |
| Rfab Properties Ltd | Administrative & support | 2021 |
| RFS Asset Management & Compliance Ltd | Construction | 2024 |
| RFT Repairs Limited | Extraterritorial | 2012 |
| RG Carter Group Limited | Professional & scientific | 1967 |
| RG Clinical Services Ltd | Health & social care | 2026 |
| RG Digital Solutions Ltd | Information & communication | 2026 |
| RG Fibre Installation Ltd | Information & communication | 2020 |
| RG Holdings (Norwich) Ltd | Construction | 2022 |
| RG Leverett Limited | Construction | 2006 |
| RGA Property Solutions Ltd | Real estate | 2022 |
| RGA Technology Ltd | Administrative & support | 2007 |
| Rgcc Limited | Professional & scientific | 2016 |
| RGF Relocations & Installations Ltd | Construction | 2014 |
| RGM Electrical Solutions Ltd | Construction | 2022 |
| RGT Engineering Solutions Limited | Professional & scientific | 2021 |
| RH (Norwich) Limited | Financial services | 2021 |
| RH Comp Ltd | Construction | 2026 |
| RH Globe Limited | Wholesale & retail | 2026 |
| RHD Norfolk Ltd | Manufacturing | 2025 |
| Rhea Foods Ltd | Hospitality | 2020 |
| Rhencullen Care Group Ltd | Financial services | 2018 |
| Rhianna Ellington Textile Designs Limited | Arts & recreation | 2013 |
| Rhino Building and DIY Supplies Ltd | Wholesale & retail | 2012 |
| Rhino Capital Holdings Ltd | Financial services | 2022 |
| Rhino Heating Services Ltd | Construction | 2024 |
| Rhino Perimeter Security Ltd | Wholesale & retail | 2004 |
| RHK Dreamers Indian Cuisine Limited | Hospitality | 2017 |
| Rhns Holdings 1 Ltd | Real estate | 2025 |
| Rhombus Park Management Company Limited | Real estate | 2004 |
| RHS Flooring Ltd | Construction | 2016 |
| Rhst Holdings Limited | Financial services | 2023 |
| Rhythm Rollers Limited | Information & communication | 2015 |
| RIA Stiles Limited | Professional & scientific | 2020 |
| Riaah Group UK Limited | Hospitality | 2020 |
| Riago Limited | Health & social care | 2015 |
| Rialto I. T. Services Limited | Information & communication | 2011 |
| Ricco Fabio Limited | Administrative & support | 2009 |
| Rich Tingz Ltd | Wholesale & retail | 2021 |
| Richard Beck Energy Consulting Ltd | Professional & scientific | 2026 |
| Richard Cooper & SON Ltd | Agriculture & fishing | 2014 |
| Richard Craske Crop Storage Ltd | Professional & scientific | 2023 |
| Richard Crisp Associates Limited | Professional & scientific | 2015 |
| Richard Day Accountants Limited | Professional & scientific | 2020 |
| Richard Hamer Yacht Design Ltd | Professional & scientific | 2025 |
| Richard Hill Decorating Limited | Construction | 2008 |
| Richard Holden Ltd | Professional & scientific | 2024 |
| Richard Hughes Restaurants Ltd | Hospitality | 2006 |
| Richard John Andrews Ltd | Professional & scientific | 2016 |
| Richard Johnston Limited | Agriculture & fishing | 1980 |
| Richard Kirby Commercials Limited | Transport & logistics | 2006 |
| Richard Lomax & Associates Ltd | Professional & scientific | 1997 |
| Richard M. Ford Limited | Administrative & support | 1999 |
| Richard Murgatroyd Photography Limited | Professional & scientific | 2020 |
| Richard Spurling Limited | Extraterritorial | 2006 |
| Richard Utting Associates LLP | | 2011 |
| Richard Waterfield Lead Specialist Limited | Construction | 2007 |
| Richard Williams Audio Services Limited | Information & communication | 2024 |
| Richard Wills Training Associates Ltd | Professional & scientific | 2019 |
| Richards Consulting Services Ltd | Professional & scientific | 2025 |
| Richardson Global Enterprises Ltd | Real estate | 2022 |
| Richardson Haworth (Life and Pensions) Limited | Financial services | 1983 |
| Richardson Macarthur Limited | Professional & scientific | 1986 |
| Richardson UK Holdings Limited | Financial services | 2023 |
| Richardsons Leisure (Holdings) Limited | Manufacturing | 2020 |
| Richardsons of Norwich Ltd | Wholesale & retail | 2026 |
| Richardvince.Com Limited | Wholesale & retail | 2010 |
| Richmond Court (Norwich) Management Company Limited | Households | 2004 |
| Richmond Kettle Company Limited | Manufacturing | 2017 |
| Richmond Park Construction Limited | Arts & recreation | 2001 |
| Richmond Retail Ltd | Wholesale & retail | 2025 |
| Ricky Martin Consultancy Ltd | Professional & scientific | 2024 |
| Ricky Tyler Grounds Maintenance Ltd | Other services | 2015 |
| Riddles Bar Ltd | Hospitality | 2014 |
| Riddlesworth Properties Limited | Real estate | 2000 |
| Rider Estates Limited | Real estate | 2015 |
| Ridge Power Ltd | Wholesale & retail | 2022 |
| Ridgecore Ltd | Construction | 2023 |
| Ridgeway Computer Systems Limited | Information & communication | 1996 |
| Ridgeway Consultancy Limited | Information & communication | 2026 |
| Ridouts Bakery Ltd | Manufacturing | 2015 |
| Rienzi Technologies Ltd | Information & communication | 2017 |
| Rigato Ltd | Hospitality | 2025 |
| Rigby Engineering Solutions Ltd | Mining & quarrying | 2015 |
| Right Time Recruitment Limited | Administrative & support | 2016 |
| Rightford Limited | Arts & recreation | 2024 |
| Rightpave Limited | Administrative & support | 2024 |
| Rightprint Ltd | Wholesale & retail | 2014 |
| Rightstaff Limited | Administrative & support | 2017 |