| R H Financial Limited | Financial services | 2006 |
| R H Motor Services Limited | Wholesale & retail | 2008 |
| R Hunter Electrical Services Ltd | Construction | 2016 |
| R J C Enterprises Limited | Wholesale & retail | 2002 |
| R J Crane Hire Limited | Construction | 1986 |
| R J Flint Limited | Financial services | 2025 |
| R J Francis Care Homes Limited | Health & social care | 2022 |
| R J Garage Services Ltd | Wholesale & retail | 2025 |
| R J Rogers Ltd | Construction | 2002 |
| R J Waters Limited | Agriculture & fishing | 2003 |
| R Knights Building Services Ltd | Construction | 2024 |
| R Kular Ltd | Real estate | 2026 |
| R L Burton Limited | Health & social care | 2010 |
| R M Hubbard Consultancy Ltd | Professional & scientific | 2015 |
| R Media & Communications Ltd | Information & communication | 2012 |
| R Moss Holdings Ltd | Financial services | 2025 |
| R P Shearwood Builders Limited | Construction | 2004 |
| R P Shearwood Properties Limited | Real estate | 2004 |
| R R Kershaw Builders Limited | Construction | 2011 |
| R Racing GT Ltd | Wholesale & retail | 2021 |
| R T Hair & Beauty Academy Ltd | Education | 2024 |
| R V Research Ltd | Wholesale & retail | 2026 |
| R W Paving & Landscaping Ltd | Construction | 2016 |
| R&B Drinks Ltd | Wholesale & retail | 2012 |
| R&B Home Improvements Ltd | Construction | 2016 |
| R&D Flavours Limited | Wholesale & retail | 2025 |
| R&K Brickwork Ltd | Construction | 2022 |
| R&K Logistics Ltd | Transport & logistics | 2021 |
| R&L Group EA Ltd | Construction | 2021 |
| R&M Property Solutions (East Anglia) Ltd | Real estate | 2022 |
| R&M Treatments Ltd | Other services | 2026 |
| R&Mcm Ltd | Wholesale & retail | 2023 |
| R&Q Construction Ltd | Construction | 2025 |
| R&Q Electrical Co Ltd | Construction | 2022 |
| R&S Auto Works Ltd | Wholesale & retail | 2020 |
| R&W Capital Investments Ltd | Financial services | 2022 |
| R-Kyva Ltd | Wholesale & retail | 2026 |
| R. Burton (Plumbing & Heating) Limited | Construction | 1992 |
| R. Charlish Limited | Professional & scientific | 1953 |
| R. Cole Plumbing Services Ltd | Construction | 2018 |
| R. E. Treacher & Associates Limited | Professional & scientific | 1985 |
| R. G. Carter Dereham Limited | Professional & scientific | 1939 |
| R. G. Carter Developments Limited | Professional & scientific | 2001 |
| R.& J.M.Place Limited | Financial services | 1954 |
| R.A Steak Limited | Hospitality | 2020 |
| R.A.G Plumbing & Heating Ltd | Construction | 2023 |
| R.A.H.Sehmi Ltd | Financial services | 2025 |
| R.Brereton Limited | Administrative & support | 1960 |
| R.C. Harber Limited | Real estate | 1976 |
| R.C. Snelling (Blofield) Limited | Professional & scientific | 1960 |
| R.C. Snelling Limited | Wholesale & retail | 1994 |
| R.E. Sheep Limited | Agriculture & fishing | 1988 |
| R.E.G. Energy Services (Norfolk) Limited | Energy | 2014 |
| R.E.H. Kennedy Limited | Manufacturing | 2004 |
| R.G. Carter Building Limited | Professional & scientific | 1999 |
| R.G. Carter Cambridge Limited | Construction | 1999 |
| R.G. Carter Central Limited | Professional & scientific | 2012 |
| R.G. Carter Civil Engineering Limited | Construction | 1999 |
| R.G. Carter Construction Limited | Construction | 1996 |
| R.G. Carter Engineering Limited | Professional & scientific | 2012 |
| R.G. Carter Investments Limited | Professional & scientific | 2001 |
| R.G. Carter Limited | Construction | 1932 |
| R.G. Carter Peterborough Limited | Professional & scientific | 1987 |
| R.G. Carter Projects Limited | Construction | 1985 |
| R.G. Carter Technical Services Limited | Construction | 1986 |
| R.G. Carter West Norfolk Limited | Professional & scientific | 1985 |
| R.Grid Ltd | Extraterritorial | 2019 |
| R.L. Johnson Ltd. | Wholesale & retail | 2001 |
| R.P.Colman & Co;Limited | Wholesale & retail | 1959 |
| R.P.I. Engineering Limited | Wholesale & retail | 2023 |
| R.Robinson & Co.(Motor Services)Limited | Professional & scientific | 1956 |
| R.T. Clamp Limited | Professional & scientific | 2013 |
| R.V. & D.T. Futter Limited | Real estate | 1955 |
| R2-INSTALLATIONS Ltd | Construction | 2018 |
| RA GP Medical Ltd | Health & social care | 2019 |
| RAA Catering Ltd | Extraterritorial | 2018 |
| RAB Global Consulting Limited | Professional & scientific | 2022 |
| Rabbit Box Pet Shop Limited | Wholesale & retail | 2024 |
| Rabbit Hill Limited | Real estate | 2014 |
| Rabbit Island Enterprises Ltd | Financial services | 2024 |
| Rabbits Salad Bar Ltd | Hospitality | 2025 |
| Race Car Graphics Limited | Extraterritorial | 2025 |
| Rachael Stock Norwich Ltd | Other services | 2023 |
| Rachel GEE Limited | Financial services | 2011 |
| Rachel Goel Consultancy Limited | Professional & scientific | 2015 |
| Rachel Stone ANP Ltd | Health & social care | 2024 |
| Racing Stars Ltd | Information & communication | 2019 |
| Racj Limited | Information & communication | 2022 |
| Rackham & Sales Ltd | Construction | 2016 |
| Rackham Group Limited | Professional & scientific | 2005 |
| Rackham Services Ltd | Construction | 2020 |
| Rackheath 6PD Ltd | Construction | 2022 |
| Rackheath Aggregates Ltd | Water & waste | 2025 |
| Rackheath Electrical Ltd | Construction | 2023 |
| Rackheath Engineering Ltd | Manufacturing | 2012 |
| Rackheath Hall Apartments Management Company Limited | Households | 2000 |
| Rackheath Hall Gardens Management Company Limited | Real estate | 2000 |
| Rackheath Pharm Ltd | Wholesale & retail | 2023 |
| Rackheath Stores Ltd | Wholesale & retail | 2021 |
| RAD Consultancy Solutions Limited | Information & communication | 2014 |