| Andy Tennant Management Limited | Arts & recreation | 2010 |
| Andy Tiernan Classics Limited | Wholesale & retail | 1982 |
| Andy Ureche Ltd | Construction | 2024 |
| Andys Driving Solutions Limited | Administrative & support | 2016 |
| Angel 7 Ltd. | Wholesale & retail | 2017 |
| Angel Amore Healthcare Solutions Limited | Other services | 2024 |
| Angel Place Management Limited | Households | 2015 |
| Angel Retail Traders Limited | Wholesale & retail | 2026 |
| Angela Hayward Accountant Limited | Professional & scientific | 2023 |
| Angela Leech Ltd | Health & social care | 2010 |
| Angellss Ltd | Wholesale & retail | 2025 |
| Angi's Solutions Ltd | Administrative & support | 2019 |
| Anglia Bespoke Care Ltd | Health & social care | 2021 |
| Anglia Block Paving Limited | Construction | 2012 |
| Anglia Brick Cutting Limited | Construction | 2008 |
| Anglia Care Trust | Other services | 1988 |
| Anglia Co-Living Ltd | Real estate | 2025 |
| Anglia Commercial Flooring Limited | Construction | 2016 |
| Anglia Container Services Limited | Extraterritorial | 2000 |
| Anglia Contractors Limited | Construction | 2017 |
| Anglia EAR Care Solutions Ltd | Health & social care | 2018 |
| Anglia Factors (Ipswich) Limited | Wholesale & retail | 1988 |
| Anglia Foilblocking Limited | Manufacturing | 1998 |
| Anglia Foiling Limited | Extraterritorial | 2001 |
| Anglia Home Solutions Limited | Administrative & support | 2024 |
| Anglia Indoor Kart Racing Limited | Arts & recreation | 1990 |
| Anglia Indoor Karting (Ipswich) Limited | Arts & recreation | 2013 |
| Anglia Joinery Limited | Extraterritorial | 2003 |
| Anglia Karting Holdings Limited | Financial services | 2025 |
| Anglia Living Care Services Ltd | Health & social care | 2013 |
| Anglia Oncology Ltd | Health & social care | 2017 |
| Anglia Probate and Trusts Ltd | Other services | 2009 |
| Anglia Research Services Limited | Administrative & support | 2005 |
| Anglia Site Storage Limited | Real estate | 2009 |
| Anglia Time Recorders Ltd | Administrative & support | 2005 |
| Anglia Truck Tyre Management Limited | Wholesale & retail | 2001 |
| Anglia Vision Limited | Health & social care | 2014 |
| Anglia( Civils ) Limited | Construction | 2015 |
| Angliametro Ltd | Transport & logistics | 2026 |
| Anglian Azure Ltd | Hospitality | 2022 |
| Anglian Building Control Limited | Professional & scientific | 1993 |
| Anglian Burglar Alarms Limited | Extraterritorial | 2007 |
| Anglian Cladding Services Limited | Construction | 2012 |
| Anglian Convenience Stores Limited | Wholesale & retail | 1996 |
| Anglian Dubs Ltd | Wholesale & retail | 2023 |
| Anglian Energy Limited | Professional & scientific | 2004 |
| Anglian Engineering Services Ltd | Wholesale & retail | 2014 |
| Anglian Excavations Limited | Mining & quarrying | 2002 |
| Anglian Media Solutions Limited | Information & communication | 2024 |
| Anglian Podiatry Limited | Health & social care | 2015 |
| Anglian Pumping Services Limited | Wholesale & retail | 1983 |
| Anglian Roofing Supplies (Holdings) Limited | Wholesale & retail | 2017 |
| Anglian Roofing Supplies EOT Limited | Professional & scientific | 2025 |
| Anglian Roofing Supplies Limited | Wholesale & retail | 2006 |
| Anglian Security & Fire Limited | Administrative & support | 1982 |
| Anglian Truck Tyre Management Cambs Limited | Wholesale & retail | 2024 |
| Anglian Truck Tyre Management Norwich Limited | Wholesale & retail | 2024 |
| Anglian Truck Tyre Management South Limited | Wholesale & retail | 2020 |
| Anglian Upcycling Ltd | Water & waste | 2023 |
| Anglian Utilities Limited | Professional & scientific | 2021 |
| Angliaon Ltd | Wholesale & retail | 2018 |
| Anglo Consultancy Limited | Real estate | 1998 |
| Anglo Entertainment Ltd | Arts & recreation | 2021 |
| Anglo Group Limited | Transport & logistics | 2016 |
| Anglo-Norden Canada Limited | Wholesale & retail | 1980 |
| Anglo-Norden Forest Products Limited | Wholesale & retail | 1971 |
| Anglostar Developments Limited | Construction | 2013 |
| Angmac Ltd | Financial services | 2005 |
| Angry Goat Ltd | Transport & logistics | 2016 |
| Angus Beattie Consulting Ltd | Professional & scientific | 2022 |
| Animals in Motion Limited | Professional & scientific | 2023 |
| Anisha Money Transfer Ltd | Wholesale & retail | 2009 |
| Anjaneya Properties Ltd | Real estate | 2021 |
| Anluko Limited | Financial services | 2024 |
| Anmhb Rentals Limited | Real estate | 2024 |
| Anna EN Ltd | Administrative & support | 2018 |
| Anna Hargreaves Ltd | Information & communication | 2024 |
| Anna Hopkin Performance Limited | Arts & recreation | 2021 |
| Anna Scott Coaching Limited | Other services | 2022 |
| Anna Swift Trading Ltd | Wholesale & retail | 2021 |
| Anna’S Flowers Bedwells Ltd | Wholesale & retail | 2026 |
| Anne Marie Francis Limited | Real estate | 2024 |
| Anne Wright Interiors Limited | Construction | 2017 |
| Annelis Trans Ltd | Transport & logistics | 2024 |
| Annex Holding Limited | Real estate | 2023 |
| Anno 1971 Limited | Transport & logistics | 2016 |
| Another Bowl Ltd | Hospitality | 2023 |
| Another World VR Arenas Ltd | Information & communication | 2025 |
| Anpas Residential Limited | Real estate | 2020 |
| Ansa 2025 Ltd | Hospitality | 2025 |
| ANT Leasing Ltd | Administrative & support | 2026 |
| Antanovic Transport Limited | Transport & logistics | 2022 |
| Antedia Limited | Real estate | 2021 |
| ANTHAN2025 Ltd | Hospitality | 2025 |
| Anthony Properties Ltd | Households | 2020 |
| Anthony Property Holdings Ltd | Real estate | 2024 |
| Anti Gram Electrical Ltd | Construction | 2018 |
| Anto's Yacht Services Limited | Other services | 2024 |
| Anton DZ Limited | Construction | 2025 |
| Antonia Andreea Ltd | Wholesale & retail | 2026 |