| Raven Topco Limited | Administrative & support | 2016 |
| Raveningham Farms,Limited | Agriculture & fishing | 1951 |
| Raveningham Group Broadband Community Interest Company | Information & communication | 2017 |
| Ravenscroft Consultants Limited | Professional & scientific | 2022 |
| Raventech Ltd | Information & communication | 2025 |
| Ravin AI (UK) Limited | Information & communication | 2019 |
| RAW Dog Food Company (East Anglia) Ltd | Wholesale & retail | 2016 |
| RAW Group Global Limited | Wholesale & retail | 2020 |
| RAW Tipis Limited | Administrative & support | 2022 |
| Rawen Beauty Ltd | Other services | 2025 |
| Rawlins & Company Limited | Hospitality | 2005 |
| Rawr Fitness UK Ltd | Health & social care | 2019 |
| RAY Munn Paints & Interiors Ltd | Manufacturing | 2015 |
| RAY Read Design Limited | Construction | 2014 |
| Raybenn Ltd | Wholesale & retail | 2021 |
| Raycone Limited | Real estate | 1998 |
| Rayhamax Limited | Transport & logistics | 2021 |
| Raymart Wholesale Ltd | Wholesale & retail | 2011 |
| Rayner & Green Care Limited | Professional & scientific | 2007 |
| Raynham Street Properties Ltd | Real estate | 2019 |
| Raytech Electrical Ltd | Construction | 2008 |
| Raythex Ltd | Wholesale & retail | 2023 |
| Rayyan Construction Ltd | Construction | 2013 |
| Rayyan Medicine Limited | Health & social care | 2021 |
| Raza Fashion Ltd | Wholesale & retail | 2016 |
| Raza Logistics Limited | Transport & logistics | 2019 |
| Razteam Invest Ltd | Construction | 2015 |
| Razzell Aviation Limited | Manufacturing | 2023 |
| RB & RE Motors Limited | Wholesale & retail | 2004 |
| RB Eastern Properties Ltd | Real estate | 2023 |
| RB Quality Engineering Limited | Professional & scientific | 2017 |
| RB1 Training Ltd | Education | 2022 |
| RBA Electrical Limited | Construction | 2024 |
| Rbdi Holdings Limited | Information & communication | 2024 |
| RBE Services Ltd | Construction | 2018 |
| RBI Consultancy Ltd | Financial services | 2015 |
| RBL Interiors Limited | Construction | 2005 |
| RBO Investments Limited | Real estate | 2017 |
| Rbrooksroofing Ltd | Construction | 2023 |
| RBS (Hevingham) Limited | Wholesale & retail | 2003 |
| RC Khan Housing Ltd | Professional & scientific | 2025 |
| RC Lifts Limited | Construction | 2018 |
| Rc(Mcr) Ltd | Administrative & support | 2018 |
| Rcalindas Ltd | Manufacturing | 2022 |
| RCI Joinery Limited | Manufacturing | 2021 |
| Rcln Ltd | Construction | 2019 |
| RCM Advisory (Services) Limited | Professional & scientific | 2018 |
| RCM Advisory Limited | Professional & scientific | 2017 |
| Rcmik Health Care Ltd | Health & social care | 2014 |
| RCP Brighton Ltd | Real estate | 2014 |
| RCP Parking Limited | Transport & logistics | 1994 |
| RCR Event Productions Ltd | Arts & recreation | 2025 |
| RCR Services (UK) Ltd | Education | 2013 |
| RCV Technical Ltd | Wholesale & retail | 2026 |
| RCW Chiropractic Limited | Health & social care | 2022 |
| RD & D Properties Limited | Construction | 2009 |
| RD Coached Ltd | Information & communication | 2021 |
| RD Guest Plumbing & Heating Ltd | Construction | 2015 |
| RD Networks Installation Ltd Ltd | Construction | 2023 |
| RD UK Property Ltd | Real estate | 2023 |
| RDA Audio Ltd | Manufacturing | 2019 |
| RDB Distributions Ltd | Wholesale & retail | 2026 |
| Rdbj Ltd | Wholesale & retail | 2022 |
| RDC Design Limited | Administrative & support | 2007 |
| Rdennis Limited | Extraterritorial | 2017 |
| RDW Construction Ltd | Construction | 2018 |
| RE - DO Norfolk CIC | Wholesale & retail | 2021 |
| Re-Focus Associates Limited | Professional & scientific | 2004 |
| Re-Gen Clinic Limited | Health & social care | 2019 |
| Reach Bidco Limited | Financial services | 2025 |
| Reach Care Services Limited | Health & social care | 2007 |
| Reach Holdco Limited | Financial services | 2025 |
| Reach Investco Limited | Financial services | 2025 |
| Reach Midco Limited | Financial services | 2025 |
| Reach Topco Limited | Financial services | 2025 |
| Reachlog Limited | Wholesale & retail | 1988 |
| Reachout Norfolk Ltd | Health & social care | 2014 |
| React Payroll Limited | Administrative & support | 2020 |
| Reactive Contracting Group Ltd | Construction | 2017 |
| Read Brothers Limited | Manufacturing | 1988 |
| Read Garden Rooms Ltd | Construction | 2020 |
| Read Holdings (Norwich) Limited | Financial services | 2019 |
| Read Mills Management Company Limited | Households | 2005 |
| Read Timber Limited | Wholesale & retail | 1978 |
| Reads Real Estate Holdings Limited | Real estate | 2024 |
| Reads Real Estate Limited | Real estate | 2024 |
| Readtown Limited | Professional & scientific | 1989 |
| Ready for the Races Ltd | Wholesale & retail | 2026 |
| Ready SET MOW Ltd | Wholesale & retail | 2021 |
| Ready SET REP Ltd | Wholesale & retail | 2023 |
| Ready SET Travel Ltd | Wholesale & retail | 2024 |
| Ready When YOU ARE Ltd | Information & communication | 2022 |
| READY2COOK Norfolk Ltd | Hospitality | 2017 |
| Readysitgeek Limited | Other services | 2025 |
| Reagit UK Ltd | Professional & scientific | 2019 |
| Real Assurance Risk Management Ltd | Professional & scientific | 2001 |
| Real Consulting (Cost and Project Management) LLP | | 2012 |
| Real Journey Right Path Ltd | Hospitality | 2024 |
| Real Original Ltd | Wholesale & retail | 2018 |
| Real Project Management Limited | Information & communication | 2005 |