| Aviato Holdings Limited | Edinburgh | 2023 |
| Aviator Corporate Services Ltd | Basingstoke | 2023 |
| Avibe Ltd | Glasgow | 2015 |
| Avibuy Aircraft and Parts Limited | Ruislip | 2022 |
| Avictus Limited | Bexhill | 2019 |
| Avidity Productions Ltd | London | 2014 |
| Aviella-Uk Ltd | Erith | 2025 |
| Aviemore Community Enterprise Company Ltd | Aviemore | 2002 |
| Aviemore Landscapes Ltd | Seaford | 2015 |
| Avigails School Limited | London | 2018 |
| Avighna FNX Ltd | Bromley | 2020 |
| Avila Haus Aesthetics Ltd | Bushey | 2025 |
| Avila Yoga & Meditations Ltd | Towcester | 2025 |
| Avim Consultancy Ltd | Wembley | 2013 |
| Avimar Ltd. | Midlothian | 2002 |
| Avin Services Ltd | London | 2026 |
| Avin-Clinic Ltd | Leicester | 2025 |
| Avinatan Resources Limited | London | 2005 |
| Avinex Limited | London | 2006 |
| Avington Holdings Limited | Edinburgh | 2023 |
| Avinit Tattoo & Body Piercing Limited | Orpington | 2004 |
| Avins Hair and Beauty Ltd | Haywards Heath | 2015 |
| Avion Support Services Ltd | London | 2026 |
| Avion Training and Consultancy Ltd | Southampton | 2011 |
| Avionicare Limited | Leigh-On-Sea | 1989 |
| Aviora Trading Ltd | Manchester | 2025 |
| Aviorapay Ltd | Liverpool | 2026 |
| Avira Group Ltd | Stevenage | 2022 |
| Aviraj Limited | Leicester | 2019 |
| Avis Upkeep Ltd | London | 2021 |
| Avisav Ltd | London | 2019 |
| Avisavvy Consulting Ltd | Halesowen | 2023 |
| Avish Nail & Beauty Ltd | Glasgow | 2018 |
| Avislim Ltd | Gloucester | 2019 |
| Avit Limited | Enfield | 2021 |
| Avita Retail Limited | Wembley | 2013 |
| Aviva Beauty Academy Ltd | Luton | 2019 |
| Aviva Central Services UK Limited | Norwich | 1996 |
| Aviva Day Spa Limited | Luton | 2012 |
| Aviva Employment Services Limited | London | 1996 |
| Aviva Investors Infrastructure Income NO.6A1 Limited | London | 2021 |
| Aviva Investors Infrastructure Income NO.6C Limited | London | 2021 |
| Aviva Investors Infrastructure Income NO.6C1 Limited | London | 2021 |
| Aviva Israel Ltd | London | 2025 |
| Aviva Professionals Ltd | Luton | 2020 |
| Aviyshair Ltd | Basingstoke | 2020 |
| Avkp Limited | London | 2019 |
| AVL Events Ltd | Bristol | 2021 |
| AVL Health Limited | Hove | 2023 |
| Avlee Law Limited | Lincoln | 2014 |
| Avlik Modern Structure Limited | Enfield | 2020 |
| Avlon Court Management Company Limited | Bordon | 2007 |
| Avlon's Hair Studio Ltd | Swindon | 2025 |
| AVM Aesthetics Ltd | Ormskirk | 2017 |
| AVM Hairdresser Ltd | Ilford | 2020 |
| AVM Property Solutions Ltd | London | 2023 |
| AVM Studios Ltd | Macclesfield | 2019 |
| Avmax Ltd | Wappenham | 2009 |
| Avnei Tzedek Limited | Salford | 2023 |
| Avnel Beauty Spa Ltd | Belfast | 2023 |
| Avni Aesthetic Ltd | Wolverhampton | 2024 |
| Avoca Hair and Beauty Limited | Spalding | 2019 |
| Avocado Associates Limited | London | 2018 |
| Avocado Beauty & Laser Clinic Ltd | London | 2018 |
| Avocado Natural Organic Limited | Walsall | 2024 |
| Avocet Steel Strip Limited | Crewe | 1996 |
| Avocor Limited | Camberley | 2000 |
| Avod Services Ltd | Fleet | 2019 |
| Avodas Hatfilah Ltd | Canvey Island | 2023 |
| Avogama International Limited | London | 2017 |
| Avoir Accessories Limited | Cardiff | 2017 |
| Avoir Design & Build Ltd | Stafford | 2025 |
| Avoir Design Limited | Stafford | 2023 |
| Avoir Fashion Limited | Mildenhall | 2017 |
| Avon and Tributaries Angling Association | Keynsham | 2000 |
| Avon Boating EBT Trustee Limited | Stratford Upon Avon | 2015 |
| Avon Court (Netley) Limited | Southampton | 1968 |
| Avon Dog Services Ltd | Radstock | 2013 |
| Avon Extinguishers Limited | Bristol | 2003 |
| Avon Forest Services Limited | Blandford Forum | 2017 |
| Avon Forest Training Limited | Blandford Forum | 2015 |
| Avon GAS Turbine Services Ltd | Rutland | 2023 |
| Avon K9 Ltd | Bristol | 2025 |
| Avon Lippiatt Hobbs (Contracting) Limited | Southend-On-Sea | 1978 |
| Avon Local Medical Committee Limited | Bristol | 2008 |
| Avon Resources Ltd | Worcester | 2020 |
| Avon Rubber Pension Trust Limited | Melksham | 1980 |
| Avon Saunas Ltd | Bristol | 2025 |
| Avon Sheds Limited | Bristol | 2013 |
| Avon Tattoo Ltd | Bristol | 2014 |
| Avon Trout Fishery Ltd | Airdrie | 2020 |
| Avon Valley Churches of Christ Limited | Bristol | 2025 |
| Avon Valley Cleaning & Restoration Limited | Chippenham | 2010 |
| Avon Valley Framing Limited | Ringwood | 2011 |
| Avon Valley Nurseries Limited | Fordingbridge | 2002 |
| Avonbrae Limited | | 2005 |
| Avonchem Diagnostics Limited | Witney | 2010 |
| Avondale Consult Limited | Benfleet | 2024 |
| Avondale Foot Care & Beauty Ltd | Reading | 2023 |
| Avondec Limited | Stalybridge | 2020 |