| 10 Harleston Ltd | Wholesale & retail | 2024 |
| 4 Stracey Road Management Company Limited | Households | 2016 |
| 50 ST Marys Street Management Company Limited | Households | 1989 |
| 777TYRES.CO.UK Ltd | Wholesale & retail | 2019 |
| 99-104 Whistlefish Court (Norwich) RTM Company Ltd | Households | 2014 |
| A R Consultancy (International) Ltd | Administrative & support | 2017 |
| A14 East Anglia Limited | Wholesale & retail | 2008 |
| Acorn Bots Ltd | Manufacturing | 2018 |
| Adapt & Construction Ltd | Construction | 2026 |
| Agchem Access UK Ltd | Extraterritorial | 2007 |
| Agchemaccess Poland Ltd | Extraterritorial | 2007 |
| AGH Carpentry & SON Limited | Construction | 2017 |
| Air Techs | | 1997 |
| Allen's Butchers Limited | Wholesale & retail | 2012 |
| ALM Arrive in Style Limited | Transport & logistics | 2014 |
| AMP Homes Ltd | Construction | 2022 |
| Andrew Guthrie Travel Services Ltd | Administrative & support | 2025 |
| Andrew Lain Kitchens Ltd | Construction | 2019 |
| Anglia Homes Ltd | Construction | 2020 |
| Annatrice Limited | Professional & scientific | 2013 |
| APS Cufflinks Limited | Wholesale & retail | 2005 |
| Arco E11 Ltd | Hospitality | 2025 |
| Arts Services Direct Ltd | Professional & scientific | 2003 |
| Ashdown Services Ltd | Professional & scientific | 2025 |
| Aspire Home Care Limited | Other services | 2015 |
| Astley & Co Estate Agents Ltd | Real estate | 2007 |
| AT the Junction Ltd | Hospitality | 2024 |
| ATF Commercial Limited | Financial services | 1999 |
| Athiriver Properties Limited | Real estate | 2020 |
| Aurina Limited | Wholesale & retail | 2011 |
| B a Thompson Ltd | Information & communication | 2015 |
| Barbers Bees Ltd | Manufacturing | 2025 |
| Bargain Bathrooms and Tiles Ltd | Construction | 2017 |
| Bearing Supplies (Norwich) Limited | Wholesale & retail | 1999 |
| Beck ROW Village Store Ltd | Wholesale & retail | 2012 |
| BEN Willis Commercial Landscaping Ltd | Professional & scientific | 2012 |
| BEN Willis Landscaping Ltd | Professional & scientific | 2009 |
| BEN Willis Properties Ltd | Real estate | 2020 |
| Benchmark Wireline Products Ltd. | Manufacturing | 1978 |
| Berry Lodge Properties Ltd | Real estate | 2021 |
| Binmer Ltd | Real estate | 2024 |
| Blush Ltd. | Other services | 2001 |
| BMF Consulting Limited | Professional & scientific | 2019 |
| Body Mind Plus Limited | Wholesale & retail | 2026 |
| Boggis Investments Limited | Real estate | 2018 |
| Bonjasper Limited | Wholesale & retail | 2013 |
| Bonny-May Holdings Ltd | Financial services | 2025 |
| Bounce Back Physio Ltd | Health & social care | 2010 |
| BPM Outsource Ltd | Administrative & support | 2013 |
| Brad'Slab Ltd | Information & communication | 2024 |
| Brian Sillett Limited | Construction | 2007 |
| Brickettes Ltd | Hospitality | 2019 |
| Brickgen Limited | Agriculture & fishing | 2007 |
| Brightwater Environmental Ltd. | Wholesale & retail | 2006 |
| Brightwater Technology Limited | Water & waste | 2014 |
| Brobox Limited | Wholesale & retail | 2011 |
| Buzzell Associates Ltd | Professional & scientific | 2022 |
| Byte Computing Ltd | Information & communication | 2015 |
| C.H. Comber Limited | Administrative & support | 1980 |
| CA Carpentry and Construction Limited | Construction | 2019 |
| Cabane Limited | Information & communication | 2015 |
| Calum Ward and Co Accountants Ltd | Professional & scientific | 2026 |
| Cambridge Trade Frames Ltd | Manufacturing | 2023 |
| Cambridge Windows and Doors Ltd | Construction | 2024 |
| Cambridge Windows Ltd | Construction | 2022 |
| Cargate Interiors Ltd | Construction | 2016 |
| Caroline Hazell Ltd | Wholesale & retail | 2024 |
| Cat Conveyancing Consultancy Ltd | Professional & scientific | 2023 |
| Cejam 73 Limited | Financial services | 2020 |
| Cejam Limited | Professional & scientific | 2010 |
| Centiflex Systems Limited | Wholesale & retail | 1980 |
| Central Properties (SR) Limited | Real estate | 2025 |
| Central Properties (UK) Limited | Wholesale & retail | 1998 |
| Chapel Farmsteads Ltd | Agriculture & fishing | 2024 |
| Cheef Civil Engineering and Groundworks Ltd | Construction | 2023 |
| Chepstow Capital Limited | Professional & scientific | 2007 |
| Cherry Tree Vets Limited | Professional & scientific | 2015 |
| Chippymate Ltd | Information & communication | 2026 |
| CJB Developments Ltd | Construction | 2020 |
| CL Ubd/Mpd ENG Services Limited | Professional & scientific | 2021 |
| Clarity Construction Services Ltd | Administrative & support | 2015 |
| Club 100 Health Clubs Ltd | Arts & recreation | 2019 |
| Cmhs Limited | Administrative & support | 1999 |
| Complete Homes Developments Ltd | Construction | 2016 |
| Concept Build Limited | Construction | 2009 |
| Constable Court Residents Association Limited | Other services | 1993 |
| Cooke's Maintenance Ltd | Administrative & support | 2024 |
| Cornerstone (East Anglia) Ltd | Construction | 2004 |
| Courtyard of ST Peters Residents Association Limited | Households | 2008 |
| Crackerjack Events Ltd | Hospitality | 2011 |
| Craig Elgood Services Ltd | Agriculture & fishing | 2025 |
| Crop Euro Holdings Limited | Professional & scientific | 2007 |
| CTH Timber Supplies Ltd | Wholesale & retail | 2024 |
| Cullings Recycling Limited | Manufacturing | 2001 |
| Customs House Limited | Real estate | 2024 |
| D Fincham & Sons Demolition Limited | Construction | 2014 |
| D Nourish Ltd | Hospitality | 2019 |
| D.A.V. Property Limited | Real estate | 2001 |
| Dagr Pictures Ltd | Information & communication | 2023 |
| Danhire Trailer Sales & Towbars Ltd | Manufacturing | 2023 |