| AVA Strategic Partners Limited | London | 2026 |
| AVA Tech Academy Ltd | Manchester | 2024 |
| AVA Technologies Global Ltd | Bideford | 2021 |
| AVA Technologies Limited | Uttoxeter | 2025 |
| AVA Technology Ltd | Edinburgh | 2024 |
| AVA Video Security Limited | London | 2017 |
| AVA Yazid Productions Limited | Sheffield | 2017 |
| Ava's Consultancy Services Ltd | Slough | 2024 |
| Avabit Ltd | Hove | 2017 |
| Avabuzz Ltd | London | 2020 |
| Avacas Limited | London | 2016 |
| Avacone Ltd | London | 2024 |
| Avaconsult Limited | Milton Keynes | 2015 |
| Avacote Limited | London | 2019 |
| Avacyn IT Ltd | Newbury | 2013 |
| Avada Cloud Limited | Chesterfield | 2021 |
| Avada Connect Ltd | Chesterfield | 2018 |
| Avada Services Limited | Chesterfield | 2025 |
| Avadata Limited | Pontefract | 2026 |
| Avades Consulting Limited | Woodford Green | 2018 |
| Avadhannla Ltd | Morden | 2019 |
| Avado Concepts Limited | Taunton | 2012 |
| Avadootha Enterprise Ltd | Bexleyheath | 2013 |
| Avadr Ltd | Mildenhall | 2023 |
| Avaeya Ltd | Southampton | 2017 |
| Avagio I.T.S. Ltd | London | 2007 |
| Avago Club Limited | Tiverton | 2023 |
| Avago Digital Ltd | Sandbach | 2021 |
| Avah Productions Ltd | London | 2024 |
| Avahan Limited | Stokes Poges | 2016 |
| Avai Technology Limited | Blackburn | 2020 |
| Avaiden Ltd | Ilford | 2015 |
| Avaifor Limited | Glossop | 2015 |
| Avail AI Ltd | Birmingham | 2018 |
| Avail Collective Ltd | Nottingham | 2022 |
| Avail Gateway Technology Limited | London | 2019 |
| Avail IT Ltd | Birmingham | 2026 |
| Avail Learning & Development Ltd | Swadlincote | 2016 |
| Availability Consulting Limited | Reading | 2010 |
| Availability Grid Ltd | London | 2019 |
| Available AV Ltd | Milton Keynes | 2022 |
| Available Domain Ltd | Halifax | 2022 |
| Available Lawyers Ltd | Reigate | 2014 |
| Available Light Ltd | London | 2025 |
| Availi Ltd | Shrewsbury | 2024 |
| Availnet Ltd | Warrington | 2012 |
| Availo Ltd | Liverpool | 2025 |
| Availo-Trade Ltd | Wirral | 2026 |
| Availto Ltd | Swadlincote | 2025 |
| Avaio Ltd | Maidstone | 2008 |
| Avaire Ltd | London | 2025 |
| Avajora Games Ltd | London | 2026 |
| Avak Energy Ltd | London | 2020 |
| Avakalan Limited | Pinner | 2025 |
| Avakkado Ltd | Hemel Hempstead | 2026 |
| Avakore Ltd | London | 2012 |
| Aval Collective Ltd | Glasgow | 2025 |
| Avala (UK) Limited | Bolton | 2012 |
| Avala Partners Ltd | Reading | 2025 |
| Avalabs Limited | London | 2018 |
| Avalance Limited | Suffolk | 2013 |
| Avalanche Consult Ltd | Bournemouth | 2022 |
| Avalanche Digital Limited | Bristol | 2012 |
| Avalanche Direct Limited | Harrogate | 2002 |
| Avalanche Entertainment Limited | London | 2012 |
| Avalanche Limited | London | 2013 |
| Avalanche Productions Ltd | Cardiff | 2022 |
| Avalanche Studios Group Limited | Liverpool | 2020 |
| Avalanche Tech Ltd | London | 2026 |
| Avalanche Telecoms Limited | Goole | 2018 |
| AVALANCHE360 Limited | Brentford | 2016 |
| Avalandia Limited | Hitchin | 2024 |
| Avalant Limited | Hull | 2025 |
| Avalar Software Ltd | Fleetwood | 2023 |
| Avalara EU Holdings UK Limited | Brighton | 2015 |
| Avalara Europe Ltd | Brighton | 2013 |
| Avalard Productions Ltd | Newtownards | 2022 |
| Avalca Limited | Mildenhall | 2017 |
| Avalesta Technology Ltd | Kingston Upon Thames | 2016 |
| Avali Film Ltd | Bradford | 2019 |
| Avalie Digital Ltd | Margate | 2023 |
| Avaline Holding Limited | Huddersfield | 2010 |
| Avaline Limited | London | 2025 |
| Avallo Ltd | London | 2024 |
| Avaloki Group Limited | London | 2022 |
| Avalon Computer Training Limited | Buckinghamshire | 2003 |
| Avalon Creative Ltd | West Midlands | 2007 |
| Avalon Creative Solutions Limited | Watford | 2010 |
| Avalon Digital Projects Limited | Manchester | 2021 |
| Avalon Digital Solutions Limited | Bridgwater | 2017 |
| Avalon Distribution Limited | London | 2008 |
| Avalon Factual Limited | London | 2012 |
| Avalon Holdings Limited | Herefordshire | 1983 |
| Avalon Information Services Ltd | Reading | 2017 |
| Avalon IT Developments Limited | Aldershot | 2022 |
| Avalon Kernow Limited | Penzance | 2025 |
| Avalon Maple Leaf Ltd | | 2004 |
| Avalon Marketing Limited | Haywards Heath | 2009 |
| Avalon Media Music Limited | Cobham | 2023 |
| Avalon Motion Pictures Limited | | 2001 |