| Redshelf Ltd | Information & communication | 2006 |
| Redshelf Trustee Limited | Financial services | 2025 |
| Redshift Holdings Ltd | Professional & scientific | 2020 |
| Redspinner Limited | Professional & scientific | 2008 |
| Redspot Care Limited | Health & social care | 2002 |
| Redstar Aero Services Limited | Transport & logistics | 2003 |
| Redstate Limited | Construction | 2018 |
| Redston Ltd | Information & communication | 2026 |
| Redston Systems Limited | Information & communication | 1994 |
| Redstone Trading Ltd | Hospitality | 2023 |
| Redstralis Ltd | Wholesale & retail | 2023 |
| Redsuite Group Ltd | Real estate | 2022 |
| Redundancy Advice Network | Administrative & support | 2001 |
| Redwell Holdings Limited | Construction | 2023 |
| Redwings Enterprises Limited | Wholesale & retail | 1993 |
| Redwings Horse Sanctuary | Agriculture & fishing | 1998 |
| Redxv Ltd | Transport & logistics | 2026 |
| Reebstew Logistics Limited | Transport & logistics | 2024 |
| Reed Design and Build Limited | Construction | 2013 |
| Reed Electrical Contractors Ltd | Construction | 2011 |
| Reedham Ferry Complex Limited | Transport & logistics | 2005 |
| Reedham Fish & Chips Ltd | Hospitality | 2007 |
| Reedham Mews Management Company Limited | Real estate | 2009 |
| Reedham Stores Company Ltd | Wholesale & retail | 2017 |
| Reel Connections CIC | Education | 2019 |
| Reel Connections Enterprises Limited | Education | 2022 |
| Reel Smart Media Limited | Information & communication | 2025 |
| Reema Express Limited | Professional & scientific | 2017 |
| Reepham Festival CIC | Arts & recreation | 2023 |
| Reepham Pizza Ltd | Hospitality | 2026 |
| Reeve & SON Construction Ltd | Construction | 2022 |
| Reeve & SON Estates Ltd | Real estate | 2023 |
| Reeve (Norwich) Ltd | Construction | 2024 |
| Reeve Social Media Ltd | Professional & scientific | 2020 |
| Reeves Property Services Limited | Construction | 2020 |
| Refined Healthcare Ltd | Health & social care | 2023 |
| Refined Interior Finishes Limited | Construction | 2023 |
| Reflect Aesthetics Ltd | Other services | 2017 |
| Reflection PR Limited | Professional & scientific | 2011 |
| Reflections Home Ltd | Wholesale & retail | 2020 |
| Reflex Action Jersey Ltd | Professional & scientific | 2023 |
| Reflex Multimedia Technologies Ltd | Information & communication | 2022 |
| Reflex Theatre Ltd. | Education | 2020 |
| Reflex Trainers Ltd | Professional & scientific | 2024 |
| Reform Flooring Ltd | Construction | 2008 |
| Refract Ltd | Information & communication | 2025 |
| Refresh AMS Ltd | Construction | 2018 |
| Refresh Interiors and Construction Ltd | Construction | 2016 |
| Refurb IT ALL Ltd | Other services | 2005 |
| Refyn Racewear Ltd | Wholesale & retail | 2023 |
| REG 44 Visitor Ltd | Health & social care | 2023 |
| Regael Limited | Wholesale & retail | 2020 |
| Regal Maintenance Management Company Limited | Households | 2014 |
| Regal Swan (Norfolk) Ltd | Real estate | 2025 |
| Regency Consultancy Limited | Real estate | 2020 |
| Regency Court (Norwich) Management Limited | Households | 2026 |
| Regency Kitchens & Bathrooms Ltd | Construction | 2013 |
| Regency Network Ltd | Professional & scientific | 2019 |
| Regent Garage (NFK) Ltd | Wholesale & retail | 2018 |
| Reggies Tea Stall Ltd | Wholesale & retail | 2022 |
| Reggys Ltd | Hospitality | 2026 |
| Regina's Limited | Wholesale & retail | 2005 |
| Reginspect Ltd | Information & communication | 2026 |
| Regional Car Parks Limited | Extraterritorial | 2006 |
| Regional Freight Services Limited | Transport & logistics | 1981 |
| Regis Bright Restaurants Ltd | Wholesale & retail | 2018 |
| Registered Investments Limited | Real estate | 2009 |
| Registered Office Services Limited | Administrative & support | 2024 |
| Rehability Social Housing Limited | Real estate | 2019 |
| Rehberg Ltd | Professional & scientific | 2023 |
| Reiba Ltd | Real estate | 2020 |
| Reiba SPV Ltd | Real estate | 2024 |
| Reid Mcdougall Ltd | Professional & scientific | 2026 |
| Reid Property Investments Ltd | Real estate | 2013 |
| Reids of Norwich Limited | Wholesale & retail | 2006 |
| Reign Gallery Ltd | Other services | 2024 |
| Reilly Coffee Company Limited | Wholesale & retail | 2013 |
| Reilly Contractors Limited | Construction | 2008 |
| Reinardyhart Ltd | Information & communication | 2017 |
| Reinstatement Ltd | Professional & scientific | 2024 |
| Reiten Motorrad Limited | Wholesale & retail | 2017 |
| Relationships Doctor Ltd | Administrative & support | 2003 |
| Reliant Real Estate Ltd | Real estate | 2021 |
| Relishing Digital Ltd | Professional & scientific | 2017 |
| Relms Energy Ltd | Other services | 2025 |
| Relocation Recruitment Limited | Extraterritorial | 2008 |
| REM Project Management Ltd | Professional & scientific | 2015 |
| Rembrandt B&B Limited | Real estate | 2013 |
| Remembrance Parks Construction Limited | Construction | 2019 |
| Remi Parsons Limited | Administrative & support | 2024 |
| Remicloglobal Ltd | Wholesale & retail | 2025 |
| Remix Estates Ltd | Construction | 2024 |
| Remix Group Ltd | Hospitality | 2021 |
| Remix Studio Limited | Information & communication | 2025 |
| Remote Technology Support Limited | Mining & quarrying | 2008 |
| REN Servicing Ltd | Construction | 2022 |
| Renaissance Events Ltd | Administrative & support | 2014 |
| Renata Steggles Limited | Professional & scientific | 2006 |
| Rencai Limited | Professional & scientific | 2013 |
| Rendells Precision Engineering Ltd | Manufacturing | 2011 |