| 10 Highcroft Road Freehold Limited | Households | 2023 |
| 22 Ladbroke Road Limited | Households | 2003 |
| 3 in One Services Ltd | Transport & logistics | 2007 |
| 36-38 Earsham Street Management Limited | Real estate | 2018 |
| 60 A-C Macfarlane Road Management Limited | Households | 2017 |
| 808 Scaffolding Manchester Ltd | Construction | 2026 |
| A R Rapps Ltd | Professional & scientific | 2016 |
| A W Potter LLP | | 2016 |
| Ace GAS Services Limited | Construction | 2025 |
| AJM Supplies Limited | Wholesale & retail | 2022 |
| AJS Geoservices Ltd | Professional & scientific | 2024 |
| Albion Nights Ltd | Hospitality | 2021 |
| Allan Collyer & Sons Limited | Agriculture & fishing | 2003 |
| Allens Cadge & Gilbert Ltd | Professional & scientific | 2016 |
| Alpha Victor Ltd | Arts & recreation | 2015 |
| Altere Studios Limited | Manufacturing | 2024 |
| Always B Reporting Ltd | Health & social care | 2022 |
| Amazing Fish and Chips Ltd | Hospitality | 2016 |
| Amitola Limited | Agriculture & fishing | 2007 |
| Anderson Plant Hire Limited | Administrative & support | 2024 |
| Andrew Harvey Private Hire Limited | Transport & logistics | 2026 |
| Anglian Air Protect (Passive Fall Protection) Limited | Wholesale & retail | 2003 |
| Anglo-Scott Pharma Limited | Wholesale & retail | 2023 |
| APH Homes & Heating Ltd | Construction | 2020 |
| Aqua Warmth Limited | Construction | 2015 |
| Arjay Ltd | Wholesale & retail | 2025 |
| Artistic Fields Limited | Information & communication | 2019 |
| Arturius Limited | Arts & recreation | 2023 |
| Astral Property Ltd | Real estate | 2025 |
| Azimuth AI Ltd | Information & communication | 2026 |
| B R Gooderham Agricultural Services Ltd | Agriculture & fishing | 2015 |
| Back in the Groove CIC | Education | 2022 |
| Baked. on Earsham ST Limited | Hospitality | 2025 |
| BB Property Restorations Ltd | Real estate | 2023 |
| BCR Garage Limited | Wholesale & retail | 2023 |
| Bdsa Land Limited | Other services | 2004 |
| Beccles Basketball Ltd | Education | 2023 |
| Bellibone Holdings Ltd | Construction | 2019 |
| BEN Davidson Surveying Ltd | Professional & scientific | 2025 |
| BEN Flint Plumbing and Heating Limited | Construction | 2021 |
| Best Proactive Limited | Information & communication | 1997 |
| Bigod Properties Ltd | Real estate | 2022 |
| Bigod's Kitchen Limited | Hospitality | 2021 |
| Bigod's Progress Limited | Hospitality | 2021 |
| Bitesize Property Ltd | Construction | 2025 |
| BK Food EN Ltd | Hospitality | 2025 |
| Black Shuck Festival CIC | Arts & recreation | 2024 |
| BLACK24 Ltd | Real estate | 2009 |
| Bnem Holdings (EA) Limited | Real estate | 2025 |
| Bravura Brands Ltd | Wholesale & retail | 2024 |
| Broadleys Electric Only Chauffeur Company Ltd | Transport & logistics | 2026 |
| Brown Site Construction Limited | Real estate | 2000 |
| Bruce Seaman Farms Limited | Agriculture & fishing | 1981 |
| Bruno Peek Pageantmaster Ltd | Arts & recreation | 2008 |
| BSK Stores Limited | Wholesale & retail | 2026 |
| BTD Holdings Ltd | Public administration | 2024 |
| Bullit Services Limited | Agriculture & fishing | 2009 |
| Bungay Arts and Theatre Society | Arts & recreation | 1997 |
| Bungay Castle Trust | Arts & recreation | 1987 |
| Bungay Community Centre | Health & social care | 2004 |
| Bungay Pet Supplies Ltd | Wholesale & retail | 2020 |
| Bungay Shopper Ltd | Wholesale & retail | 2015 |
| Bungay Store Ltd | Wholesale & retail | 2026 |
| Bungaytandoori Limited | Hospitality | 2025 |
| Butter Block Ltd | Professional & scientific | 2025 |
| Buttercross Garden Cafe Bungay Ltd | Hospitality | 2023 |
| Buttercross Garden Cafe Ltd | Wholesale & retail | 2010 |
| BY Ellis Ltd | Professional & scientific | 2023 |
| C&S Developments (East Anglia) Limited | Construction | 2014 |
| C. & J. Skinner Limited | Agriculture & fishing | 1958 |
| C.R. Cawston Limited | Agriculture & fishing | 1961 |
| Cablex UK Trade Ltd | Manufacturing | 1970 |
| CAH Trustee Limited | Other services | 2017 |
| Call ME Ltd | Information & communication | 2021 |
| CG Motorworks Limited | Wholesale & retail | 2019 |
| Cipity Partners Limited | Professional & scientific | 2021 |
| CJS Wastewater Services Limited | Water & waste | 2024 |
| Clays Ltd. | Manufacturing | 1938 |
| Clean Green Innovation Limited | Professional & scientific | 2022 |
| Click 'N' CUT Ltd | Manufacturing | 2026 |
| Clifford Brothers Brewery Limited | Manufacturing | 2016 |
| Cloudhaul Ltd | Information & communication | 2021 |
| Cloudship Ltd | Information & communication | 2018 |
| Community Assessment Therapy Services Ltd | Health & social care | 2023 |
| Conveyors Direct (UK) Limited | Manufacturing | 1999 |
| Corrodon Consulting Ltd | Professional & scientific | 2012 |
| CP Ceilings Ltd | Construction | 2011 |
| CR Packages Ltd | Wholesale & retail | 2025 |
| Craftwork Building Services Ltd. | Construction | 2019 |
| Crofton-Sleigh Engineering Ltd | Professional & scientific | 2026 |
| Cross Street Limited | Hospitality | 2025 |
| Crossways Service Centre Limited | Wholesale & retail | 1997 |
| Curious Brewery Limited | Manufacturing | 2021 |
| Cygnus Brewing Co Limited | Manufacturing | 2017 |
| D Milne Plumbing and Heating Limited | Construction | 2020 |
| Daniel Foster Plumbing & Heating Limited | Construction | 2014 |
| Davenport Enterprises Limited | Information & communication | 2022 |
| David Aspinall Limited | Wholesale & retail | 2010 |
| David Baker Farms Limited | Agriculture & fishing | 1997 |
| David Lewis XML Associates Limited | Manufacturing | 2004 |