| Avonbank Geophysics Ltd | Information & communication | 2020 |
| Avonbank Investments Limited | Extraterritorial | 2002 |
| Avonbridge Holdings Limited | Financial services | 2020 |
| Avoncare Community CIC | Professional & scientific | 2021 |
| Avoncliff Limited | Professional & scientific | 2000 |
| Avonco (Bristol) Limited | Real estate | 2004 |
| Avoncraft Engineering Ltd | Professional & scientific | 2001 |
| Avoncrest Properties Ltd | Real estate | 2024 |
| Avondale Catering Supplies Limited | Wholesale & retail | 2006 |
| Avondale Court (Bristol) Management Company Limited | Households | 1971 |
| Avondale Property Management Ltd | Real estate | 2023 |
| Avondale Property Services Limited | Construction | 2012 |
| Avongold Limited | Wholesale & retail | 1997 |
| Avonhirst and Woodland Villa Management Company Limited | Households | 2019 |
| Avonhurst Accountancy Services Limited | Professional & scientific | 2011 |
| Avonlea Court RTM Company Limited | Real estate | 2016 |
| Avonlea Electrical Contractors Limited | Construction | 2002 |
| Avonlea Solar South West Ltd | Construction | 2023 |
| Avonleigh Solutions Limited | Construction | 2013 |
| Avonmead Limited | Professional & scientific | 2017 |
| Avonmead Management Company Limited | Households | 1986 |
| Avonmed Services Ltd | Manufacturing | 2024 |
| Avonmouth Auto & Weld Limited | Wholesale & retail | 2002 |
| Avonmouth Auto Care Ltd | Wholesale & retail | 2003 |
| Avonmouth Auto Electrical Ltd | Wholesale & retail | 2009 |
| Avonmouth Battery Storage Limited | Energy | 2024 |
| Avonmouth Engineering Services Ltd | Manufacturing | 2020 |
| Avonmouth Football Club CIC | Arts & recreation | 2018 |
| Avonmouth Garage Ltd | Wholesale & retail | 2025 |
| Avonmouth Holdings Ltd | Real estate | 2024 |
| Avonmouth Mini-Market Ltd | Wholesale & retail | 2025 |
| Avonmouth Morrisons Daily Limited | Wholesale & retail | 2026 |
| Avonmouth Motor Services Ltd | Extraterritorial | 2018 |
| Avonmouth Paint Inspection Services Limited | Professional & scientific | 2009 |
| Avonmouth Shipping and Salvage Limited | Wholesale & retail | 1983 |
| Avonmouth Shipping and Salvage Properties Limited | Other services | 1989 |
| Avonmouth Trading Ltd | Wholesale & retail | 2022 |
| Avonmouth Truck & Trailer Ltd | Manufacturing | 2019 |
| Avonmouth Windows Limited | Construction | 2016 |
| Avonridge Investments Limited | Extraterritorial | 1964 |
| Avonshire Limited | Information & communication | 2017 |
| Avonshire Real Estate Limited | Real estate | 2023 |
| Avonside Insulation Supplies (ST) Limited | Wholesale & retail | 2009 |
| Avonside Insulation Supplies Holdings Ltd | Wholesale & retail | 2021 |
| Avonside Insulation Supplies Limited | Wholesale & retail | 1983 |
| Avonside Management Company Limited | Households | 1994 |
| Avonsnews UK Ltd | Wholesale & retail | 2016 |
| Avonvalley Landscapes Ltd | Administrative & support | 2022 |
| Avonview Development Group Ltd | Construction | 2026 |
| Avonwheels Ltd | Wholesale & retail | 2026 |
| AVQ Ltd | Construction | 2025 |
| AVR Construction Services Ltd | Construction | 2021 |
| AVR Management Ltd | Households | 2012 |
| Avram Autos Limited | Transport & logistics | 2019 |
| Avramdv Ltd | Information & communication | 2024 |
| AVRIL8 Ltd | Other services | 2025 |
| Avrion Risk Limited | Information & communication | 2022 |
| AVS Pipe Welding Fabrications Ltd | Manufacturing | 2013 |
| AVS Traders Ltd | Wholesale & retail | 2019 |
| AVS Vehicle Sales Ltd | Wholesale & retail | 2019 |
| Avsan Cove Limited | Health & social care | 2009 |
| Avsan Dental Edinburgh Limited | Health & social care | 2013 |
| Avsan Ferryburn Limited | Health & social care | 2013 |
| Avsan Fife Limited | Health & social care | 2012 |
| Avsan Fleet Limited | Health & social care | 2013 |
| Avsan Gloucester Limited | Health & social care | 2013 |
| Avsan Halstead Limited | Health & social care | 2013 |
| Avsan Kseat Limited | Health & social care | 2010 |
| Avsan Queenscross Limited | Health & social care | 2010 |
| Avsan Queensroad Limited | Health & social care | 2013 |
| Avsan Visage Limited | Health & social care | 2012 |
| Avsr Operations Ltd | Professional & scientific | 2026 |
| Avster Limited | Extraterritorial | 2014 |
| AVT (U.K.) Limited | Professional & scientific | 2016 |
| AVU Imaging Ltd | Professional & scientific | 2025 |
| AVZ Trans Ltd | Transport & logistics | 2025 |
| AW & S Rhodes Limited | Health & social care | 2003 |
| AW ALI Hiid Group Limited | Information & communication | 2026 |
| AW Bars Ltd | Hospitality | 2023 |
| AW Bricklaying Services Limited | Construction | 2005 |
| AW Palma Limited | Real estate | 2017 |
| AW World Ltd | Arts & recreation | 2024 |
| AW2 Property Ltd. | Real estate | 2016 |
| AWA Property Ltd | Real estate | 2021 |
| Awale Company Limited | Transport & logistics | 2026 |
| Award Care Group Ltd | Health & social care | 2026 |
| Award Training Limited | Education | 2024 |
| Awards for Young Musicians | Arts & recreation | 1998 |
| Aware Technologies Limited | Information & communication | 2015 |
| Awasi Mansion Ltd | Real estate | 2025 |
| Away From Home Ltd | Hospitality | 2016 |
| Away From My Desk Limited | Information & communication | 2010 |
| Away From My Desk Remote Support Limited | Information & communication | 2015 |
| Away Travel Limited | Wholesale & retail | 2016 |
| Aways Hire Ltd | Transport & logistics | 2022 |
| Awa’S Freedom Limited | Health & social care | 2026 |
| AWC Estates Ltd | Real estate | 2023 |
| AWE Legal Limited | Professional & scientific | 2015 |
| Aweis Transport Limited | Transport & logistics | 2018 |
| Awen Life Sciences Ltd | Professional & scientific | 2017 |