| 1-4 Paston Court RTM Company Limited | Real estate | 2011 |
| 109 Sinclair Road Freehold Limited | Households | 2006 |
| 1881 Holdings Ltd. | Real estate | 2017 |
| 1893 RTM Company Ltd | Administrative & support | 2011 |
| 2 Little Birds Nurseries Ltd | Agriculture & fishing | 2026 |
| 71000 Steam Locomotive Limited | Transport & logistics | 1975 |
| A & G Holdings (Norwich) Ltd | Real estate | 2022 |
| A Moys Plumbing Services Ltd | Construction | 2000 |
| A W D Farms Ltd | Agriculture & fishing | 2022 |
| A. Clark (Trunch) Limited | Agriculture & fishing | 1970 |
| A.H. Consultancy (U.K.) Ltd | Professional & scientific | 2024 |
| AB Gents Ltd | Other services | 2024 |
| Abbey Pets Holding Company Ltd | Financial services | 2026 |
| ABN Consultancy (Norfolk) Ltd | Professional & scientific | 2016 |
| Accession Marketing Limited | Real estate | 2017 |
| Acorn Property Solutions (Norfolk) Ltd | Real estate | 2019 |
| AE Safety Associates Ltd | Professional & scientific | 2026 |
| AEG Sports Ltd | Arts & recreation | 2020 |
| Aldiss Boat Hire Ltd | Administrative & support | 2023 |
| Aldiss Marine Services Ltd | Manufacturing | 2020 |
| Allen & Pemble Limited | Financial services | 2008 |
| Alston Chambers Limited | Households | 2023 |
| Alston Chambers Property Management Limited | Households | 2021 |
| Amar Eco-Plaster Limited | Construction | 2018 |
| Ambrose and Rose Ltd | Professional & scientific | 2022 |
| American Pizza Norfolk Ltd | Hospitality | 2026 |
| Andrew Winston Mortgage Services Ltd | Professional & scientific | 2025 |
| Andy Brown Windows Doors and Conservatories Ltd | Construction | 2018 |
| Anglian Electrical Contractors Limited | Construction | 2006 |
| Anypower Ltd | Wholesale & retail | 2025 |
| Asgardium Ltd | Information & communication | 2026 |
| Ashford Commercial Limited | Manufacturing | 1985 |
| Ashford Windows Limited | Manufacturing | 2006 |
| Askvisas Ltd | Administrative & support | 2025 |
| Attew Properties Ltd | Real estate | 2024 |
| Aurum Lily Limited | Professional & scientific | 2009 |
| AV8 Aero Consulting Ltd | Transport & logistics | 2026 |
| AVA MAY Management Ltd | Professional & scientific | 2025 |
| Aylsham House Ltd | Professional & scientific | 2026 |
| B M D Transport & Aggregates Limited | Transport & logistics | 2021 |
| B&A Cars Ltd | Wholesale & retail | 2026 |
| Ballyhearth Punch Limited | Professional & scientific | 2022 |
| Banat Food Group Ltd | Hospitality | 2020 |
| BCK Automotive Ltd | Wholesale & retail | 2022 |
| BE Inspired Today Ltd | Professional & scientific | 2013 |
| Big NAP Pizza Co Ltd | Wholesale & retail | 2025 |
| Bindwell Limited | Agriculture & fishing | 1990 |
| Blackhorse Building Services Ltd | Construction | 2021 |
| Blue Topaz Bookkeeping Services Limited | Professional & scientific | 2017 |
| Bluebird Commercial Property Ltd | Real estate | 2017 |
| Boom Marketing & Smart Social Media Ltd | Administrative & support | 2018 |
| Bottom Line Management Ltd | Professional & scientific | 2016 |
| Brale Ltd | Hospitality | 2023 |
| Brass AGE Holdings Limited | Professional & scientific | 2022 |
| Brass AGE Limited | Construction | 2009 |
| Breckland Vets Limited | Professional & scientific | 2019 |
| Bricknells & Co Ltd | Hospitality | 2025 |
| Broad FEN Retreats Ltd | Hospitality | 2021 |
| Broadland Thatchers Ltd | Construction | 2011 |
| Broadside Property Limited | Construction | 2012 |
| BY the Broads Ltd | Wholesale & retail | 2025 |
| C B Property Lets ( Norfolk ) Ltd | Real estate | 2016 |
| C B Property Lets Ltd | Real estate | 2016 |
| C Harris Holdings Limited | Financial services | 2026 |
| C Harris Investments LLP | | 2026 |
| C.B.Arnold Limited | Agriculture & fishing | 1970 |
| C.B.Builders Norfolk Ltd | Construction | 2021 |
| C.R. Utting Limited | Manufacturing | 1998 |
| Caberfeidh (UK) Limited | Manufacturing | 1998 |
| Caister Vets Ltd | Professional & scientific | 2016 |
| Cannon Clarke Group Ltd | Real estate | 2023 |
| Capy Gainz Limited | Wholesale & retail | 2025 |
| Caravan UK Export Ltd | Transport & logistics | 2021 |
| Carl Bird Limited | Construction | 2002 |
| Casement Manufacturing Limited | Manufacturing | 2025 |
| Ceilingroses.Co.Uk Ltd | Wholesale & retail | 2025 |
| CFP Projects Limited | Professional & scientific | 2022 |
| Charmat Projects Ltd | Professional & scientific | 2026 |
| Chemix Ltd | Manufacturing | 2014 |
| Chloereynoldsphotography Ltd | Professional & scientific | 2025 |
| CHS Medi Holdings Ltd | Professional & scientific | 2026 |
| CHS Pharm SPV Ltd | Professional & scientific | 2026 |
| CJ Competitions Ltd | Wholesale & retail | 2026 |
| CLD Holdings Ltd | Real estate | 2024 |
| Clearlake Social Care Ltd | Health & social care | 2013 |
| Cledop UK Limited | Manufacturing | 2007 |
| Cluny Country Ltd | Wholesale & retail | 2021 |
| Coast to Coast Cabs Ltd | Transport & logistics | 2021 |
| Coastal Heating Norfolk Ltd | Construction | 2023 |
| Coish Properties Ltd | Financial services | 2026 |
| Coldframe Grow Systems Limited | Manufacturing | 2025 |
| Conquer Promotional Solutions Limited | Professional & scientific | 2002 |
| Conway Structural Solutions Ltd | Professional & scientific | 2020 |
| Cornish Way Business Park Management Company Ltd | Real estate | 2012 |
| Cosy Carpets & Flooring Limited | Financial services | 2025 |
| Cozy Pet Ltd | Wholesale & retail | 2015 |
| Create, Cook and Prosper Limited | Hospitality | 2017 |
| Crewmates Ltd | Information & communication | 2026 |
| Cromer Vets Limited | Professional & scientific | 2020 |
| Crostwight Hall Residents Limited | Professional & scientific | 1987 |