| 1 Nomadic Star Ltd | Wholesale & retail | 2020 |
| 100BGMM (Trading) Ltd | Wholesale & retail | 2024 |
| 115 Wilsham Street Ltd | Construction | 2025 |
| 115 Wilsham Street Properties Ltd | Construction | 2025 |
| 128 Trafford Road Limited | Real estate | 2015 |
| 23-26 Lady Mary Road Norwich Limited | Real estate | 2014 |
| 31C Thorpe Road Norwich Company Limited | Households | 2018 |
| 3TAB Holdings Limited | Professional & scientific | 2017 |
| 4 Eton Mews Ltd | Construction | 2023 |
| 7 Church Street Limited | Households | 2005 |
| 70 Clarence Road (Freehold) Limited | Real estate | 2014 |
| 80S Obsession Ltd | Extraterritorial | 2019 |
| A & B Tyres (East Anglia) Limited | Wholesale & retail | 2011 |
| A Bridge Groundworks Ltd | Construction | 2020 |
| A C Pursehouse Ltd | Education | 2023 |
| A J Waters Construction Limited | Construction | 2022 |
| A P D'Eath (Electrical) Ltd | Manufacturing | 1996 |
| A V W Controls Limited | Manufacturing | 1998 |
| A Waterfield & Sons Limited | Construction | 2004 |
| A Williams Trading LLP | | 2018 |
| A&L Valeting Car Centre Ltd | Wholesale & retail | 2025 |
| A.B.Buxus.Nl Ltd | Wholesale & retail | 2019 |
| A.Chandler (Norfolk) Limited | Agriculture & fishing | 1986 |
| AA Utilities Limited | Construction | 2009 |
| Aaron Windows Installations Limited | Construction | 2005 |
| Able Taxis Limited | Transport & logistics | 2000 |
| Absolute Mechanical Ltd | Construction | 2007 |
| Accelerated Consultative Experience Ltd | Professional & scientific | 2016 |
| Accounting & Bookkeeping Solution Specialists Limited | Extraterritorial | 2018 |
| Ace Tax and Accountancy Services Ltd | Professional & scientific | 2023 |
| Acer Resources Ltd | Agriculture & fishing | 2022 |
| Acidms Limited | Water & waste | 2015 |
| ACM Building & Maintenance Ltd | Construction | 2022 |
| AD Projects Ltd | Professional & scientific | 2022 |
| Address London Properties Limited | Real estate | 2021 |
| ADI Goodsell Consulting Ltd | Professional & scientific | 2019 |
| Adkins Opticians Ltd | Health & social care | 2005 |
| Advanced Construction Technologies Limited | Construction | 2018 |
| Adventurers Getaway Ltd | Arts & recreation | 2026 |
| Advies Wealth Management Ltd | Financial services | 2013 |
| Aeptrade Ltd | Administrative & support | 2025 |
| Affordable Funeral Supplies Ltd | Other services | 2023 |
| AGM Partners LLP | | 2002 |
| Agricomp Ltd | Administrative & support | 2022 |
| Ahepa Enfield Chapter C.I.C. | Other services | 2022 |
| Airevo Consulting Limited | Information & communication | 2020 |
| AJ Driver Joinery Limited | Construction | 2000 |
| Ajflx Limited | Professional & scientific | 2025 |
| Alastair Rankin Limited | Transport & logistics | 2013 |
| Alba Mews Ltd | Financial services | 2024 |
| Albright of Diss Limited | Wholesale & retail | 2023 |
| Alderson James Consulting Limited | Administrative & support | 2011 |
| Alex Ryden Consulting Limited | Professional & scientific | 2025 |
| Alex Saunders Limited | Agriculture & fishing | 2026 |
| Ali-Clad by TWN Limited | Construction | 2016 |
| Almair Energy Limited | Real estate | 2024 |
| Alopex Aluminium Glazing Limited | Construction | 2023 |
| Alpha Air Testers Ltd | Construction | 2018 |
| Alsten Kōchi Homes Ltd | Professional & scientific | 2019 |
| Alsten Kōchi Ltd | Other services | 2019 |
| Altair Geological and Environmental Services Ltd | Construction | 2026 |
| Alterlect Limited | Administrative & support | 2012 |
| Aluco Health Ltd | Manufacturing | 2024 |
| Aluscreen Limited | Manufacturing | 2003 |
| Alverstone Motors Ltd | Wholesale & retail | 2022 |
| Amanda Mcmurray Limited | Professional & scientific | 2008 |
| Amark Agriculture Limited | Agriculture & fishing | 2016 |
| Amazon Cars Limited | Wholesale & retail | 2012 |
| American Autoflow Limited | Manufacturing | 2005 |
| Amicasa Limited | Real estate | 2023 |
| Ampersand Brew Co Ltd | Manufacturing | 2017 |
| Ampersand PUB Co Ltd | Hospitality | 2020 |
| ANA Maria Teodorescu Ltd | Health & social care | 2019 |
| ANC Property Ltd | Construction | 2016 |
| Ancrum Software Limited | Information & communication | 2023 |
| Anderson Bros Ltd | Wholesale & retail | 2019 |
| Andlan Care Ltd | Health & social care | 2021 |
| Andrei & Sons Ltd | Real estate | 2024 |
| Andrew Driver Properties Limited | Real estate | 2000 |
| Andrew Hannon Ltd. | Information & communication | 2016 |
| Andrew Jones Broadcast Ltd | Information & communication | 2014 |
| Andrew P R Love Architecture Ltd | Professional & scientific | 2003 |
| Andrews Survey & Valuation Limited | Professional & scientific | 2016 |
| Anglia Autoflow Limited | Manufacturing | 1969 |
| Anglia Catering Equipment Ltd | Wholesale & retail | 2012 |
| Anglia Cleaning Limited | Administrative & support | 2008 |
| Anglia Eggs Limited | Extraterritorial | 2010 |
| Anglia Engineering - Norwich Agency Limited | Wholesale & retail | 2002 |
| Anglia Farm Supplies Limited | Wholesale & retail | 2025 |
| Anglia Free Range Eggs Limited | Wholesale & retail | 2010 |
| Anglian Industrial Maintenance Services Ltd | Construction | 2017 |
| Anglian Lamb (2024) Ltd | Wholesale & retail | 2023 |
| Anglian Lamb Ltd | Wholesale & retail | 2016 |
| Anglo-Euro Properties Limited | Real estate | 2000 |
| Animals Feeds and Supplies Diss Limited | Agriculture & fishing | 2015 |
| Animed Direct Limited | Wholesale & retail | 2009 |
| Anthony James Brice LP | | 2015 |
| Anyshare Limited | Real estate | 1987 |
| Applied Candour Ltd | Professional & scientific | 2026 |
| Aquanimals Swim School Limited | Education | 2016 |