| Roots Staffing Solutions Ltd | Administrative & support | 2018 |
| Rootssixtysix Ltd | Hospitality | 2025 |
| Rory J Holbrook (Norwich & Brandon) Ltd | Transport & logistics | 2017 |
| Rosa Sport Ltd | Wholesale & retail | 2014 |
| Rosanna Pendleton Ltd | Professional & scientific | 2019 |
| Rose Care Holdings Limited | Real estate | 2020 |
| Rose Care Suffolk Limited | Other services | 2011 |
| Rose George 1621 Limited | Financial services | 2022 |
| Rose Lion Estate Ltd | Administrative & support | 2021 |
| Rose Museve Ltd | Public administration | 2013 |
| Rose Travel and Transport Limited | Transport & logistics | 2023 |
| Rose Villa Publications Limited | Information & communication | 2019 |
| Rose-Eyre Plumbing and Heating Limited | Construction | 2019 |
| Rose-Smart Legal Limited | Professional & scientific | 2025 |
| Roseanne Properties Limited | Real estate | 2024 |
| Roseau Limited | Hospitality | 2023 |
| Rosefinch Construction East Limited | Construction | 2025 |
| Roseville Close (27-32) Tenants Association Limited | Households | 2023 |
| Roseville Close RTM Company Limited | Households | 2014 |
| Rosewell Construction Limited | Construction | 2015 |
| Rosewood Trustees Limited | Professional & scientific | 2016 |
| Rosie B Norwich Counselling Limited | Health & social care | 2025 |
| Rosie Breen Ltd | Professional & scientific | 2022 |
| Rosiro Advanced Materials Limited | Financial services | 2019 |
| Ross Burrows (Barrister) Limited | Professional & scientific | 2024 |
| Ross Jackson Golf Ltd | Arts & recreation | 2013 |
| Ross Maritime Ltd | Professional & scientific | 2019 |
| Ross Smith Ltd | Wholesale & retail | 2023 |
| Rossi Long Consulting Limited | Professional & scientific | 2011 |
| Rossi Long Holdings Limited | Extraterritorial | 2016 |
| Rossi's Catering Limited | Hospitality | 2015 |
| Roster Home Care Ltd | Health & social care | 2022 |
| Rosterbox Limited | Information & communication | 2015 |
| Rostmen Limited | Wholesale & retail | 2019 |
| Rostrons Accountants Ltd | Professional & scientific | 2012 |
| Rosy M Bailey Ltd | Professional & scientific | 2023 |
| Rosy's Rentals Ltd | Households | 2021 |
| Rotana Cafe Birmingham Limited | Hospitality | 2016 |
| Rotate Editions Limited | Arts & recreation | 2012 |
| Rotator Ltd | Professional & scientific | 2020 |
| Rothstoke Ltd | Administrative & support | 2011 |
| Rotoflex Print and Packaging Limited | Manufacturing | 2012 |
| Rotoprecision (UK) Limited | Professional & scientific | 1997 |
| Rotorflight Aviation Ltd | Transport & logistics | 2017 |
| Rottweiler Property Soloutions Ltd | Real estate | 2026 |
| Roubles Limited | Wholesale & retail | 2006 |
| Roudham Trading Limited | Administrative & support | 2003 |
| Rough CUT Post Ltd | Information & communication | 2009 |
| Roundtree Way Containers Ltd | Administrative & support | 2023 |
| ROUTES2ROOTS Productions Limited | Information & communication | 2021 |
| Routezero Studios Ltd | Information & communication | 2026 |
| Roveel Limited | Information & communication | 2020 |
| Rovella Hair & Co Ltd | Other services | 2024 |
| Rovenak Limited | Hospitality | 2026 |
| Rovpro Limited | Professional & scientific | 2016 |
| Rowan House Lettings Limited | Real estate | 2024 |
| Rowantree Financial Planning Ltd | Financial services | 2025 |
| Rowe Family Trading Limited | Financial services | 2025 |
| Rowledge Pre-School Limited | Education | 2007 |
| Roxley Property Company (Norwich) Limited | Construction | 2006 |
| ROY Knight Limited | Arts & recreation | 2017 |
| ROY Properties (1997) Limited | Real estate | 1997 |
| Royal Docks Learning & Activity Centre | Health & social care | 2000 |
| Royal Norfolk Agricultural Association | Other services | 1984 |
| Royal Norwich Golf Club Limited | Arts & recreation | 2016 |
| Royale Dolls Ltd | Other services | 2019 |
| Royale Spice Restaurant Limited | Hospitality | 2019 |
| Royall and SON Limited | Arts & recreation | 1962 |
| Royce Business Solutions Ltd | Professional & scientific | 2019 |
| Roys Pharmacy(Wroxham),Limited | Wholesale & retail | 1922 |
| Roysia Homes Limited | Real estate | 2005 |
| Rozana Wedding Events Ltd | Hospitality | 2024 |
| RP Colman & Co Holdings Limited | Extraterritorial | 2018 |
| RP Design and Construction Ltd | Administrative & support | 2020 |
| RP Management (Norfolk) Ltd | Professional & scientific | 2018 |
| RP Watts Consulting Limited | Professional & scientific | 2024 |
| RPA Trustees Ltd | Financial services | 2018 |
| RPF Norfolk Limited | Professional & scientific | 2019 |
| RPH Carpentry Limited | Construction | 2011 |
| Rpholmes Ltd | Financial services | 2025 |
| RPM Fuels & Tanks Limited | Construction | 2007 |
| RPM Laser Limited | Professional & scientific | 2023 |
| RPM Performances Limited | Professional & scientific | 2020 |
| RPS Maintenance Services Limited | Administrative & support | 2008 |
| RPS Wensum Ltd | Real estate | 2025 |
| RPV Consultants Limited | Professional & scientific | 2017 |
| Rpwebb Limited | Professional & scientific | 2011 |
| RR Carpet Kings Ltd | Wholesale & retail | 2019 |
| RR Motion Ltd | Transport & logistics | 2016 |
| RR Property Investments (GB) Ltd | Real estate | 2022 |
| Rranaa Limited | Information & communication | 2025 |
| RRK Building Services Ltd | Construction | 2025 |
| RS Hartlebury Limited | Hospitality | 2017 |
| RS Homes and Property Ltd | Real estate | 2025 |
| RS IT Tech Ltd | Administrative & support | 2009 |
| RS Mortgages Ltd | Financial services | 2016 |
| RS Project Services Ltd | Professional & scientific | 2017 |
| RS Ranya Ltd | Other services | 2024 |
| RS Specialist Vehicles Ltd | Wholesale & retail | 2018 |
| RSA Group of Ltd | Wholesale & retail | 2024 |