| Aviator Sports and Live Lounge Ltd | Guisborough | 2025 |
| Avicenna Herbs Limited | Brighton | 2014 |
| Avicol Ltd | Bonnybridge | 2023 |
| Avid Star Limited | Brierley Hill | 2025 |
| Avida Go Limited | New Malden | 2017 |
| Avida Ltd | Birmingham | 2019 |
| Avidity Hotels (Corby) Ltd | Northampton | 2024 |
| Avidity Hotels (Edinburgh) Limited | Northampton | 2025 |
| Avidity Linx Ltd | London | 2014 |
| Avidity Models Ltd | London | 2019 |
| Aviemore Adventure Holidays Ltd | Aviemore | 2025 |
| Aviemore GIN Society Limited | Glasgow | 2017 |
| Aviemore Glamping Ltd | Aviemore | 2024 |
| Aviemore Independent Ltd | Carluke | 2018 |
| Aviemore Leisure Management Limited | Bathgate | 1997 |
| Aviemore Mountain Lodges Limited | Stirling | 2007 |
| Aview Management Limited | London | 2019 |
| Avighna Resources Limited | London | 2020 |
| Avighna Sustainability Limited | London | 2020 |
| Aviha Foods Limited | Watford | 2011 |
| Avila Kitchen Ltd | Buckley | 2019 |
| Avila Properties Ltd | Bedford | 2026 |
| Avila Trading Ltd | Weybridge | 2019 |
| Avila's Kitchen Limited | Hounslow | 2025 |
| Avilah Consulting Limited | London | 2018 |
| Avilah Foods Limited | Reading | 2015 |
| Avill Properties Limited | Minehead | 2006 |
| Avina Cafe Ltd | Ashton-Under-Lyne | 2022 |
| Avinash Jikoni Ltd | Harrow | 2026 |
| Avins Country Kitchen Ltd | Haywards Heath | 2015 |
| Avinu Heavenly Treats Ltd | Swanscombe | 2024 |
| Avion Catering Services Ltd | Hounslow | 2020 |
| Avion Managment Ltd | Cardiff | 2026 |
| Aviotti & Gobbato Ltd | Chester | 2018 |
| Aviran RK Limited | Bury St. Edmunds | 2025 |
| Aviro Holdings Ltd | Birmingham | 2026 |
| Avis & Co UK Limited | Uxbridge | 2005 |
| Avis Hotel Limited | Bromley | 2002 |
| Aviscon Integrated Services Limited | London | 2023 |
| Avisford Park Hotel Limited | Northwood | 2021 |
| Avista Resort & Travels Limited | London | 2024 |
| Aviv Ltd | London | 2024 |
| Aviyal Limited | London | 2009 |
| Avjin Limited | Plymouth | 2025 |
| AVK Fast Food Ltd | Dartford | 2024 |
| AVK Foods Private Limited | Warwick | 2023 |
| AVK Leisure Ltd | Glasgow | 2025 |
| AVK Restaurent Ltd | London | 2020 |
| AVK Retail Limited | Ravenshead | 2025 |
| AVL Consultancy Limited | Woking | 1986 |
| AVL Taverns Ltd | Bolton | 2019 |
| Avleen Dine & Catering Ltd | Hayes | 2022 |
| Avli Catering Limited | London | 2025 |
| Avlos Stay Ltd | Manchester | 2025 |
| AVM Fish N Chips Ltd | Middlesbrough | 2021 |
| AVM Food Trading Ltd | London | 2025 |
| Avma Group Limited | Gravesend | 2025 |
| Avmn Enterprise Ltd | Manchester | 2019 |
| Avmn New Enterprise Ltd | Stockport | 2024 |
| Avni Assets Ltd | London | 2025 |
| Avni Saini Ltd | Leicester | 2024 |
| Avni SUB Ltd | Eastleigh | 2023 |
| Avnikh Ltd | Stafford | 2013 |
| Avnikh Restaurants Ltd | Leicester | 2023 |
| AVO Events Co Ltd | Truro | 2026 |
| AVO Scotland Limited | Glasgow | 2017 |
| Avobar Ltd | London | 2017 |
| Avoca Express Ltd | Airdrie | 2025 |
| Avoca House Hotel (Swiss Cottage) Limited | Brentwood | 1978 |
| Avoca Inns Limited | Newcastle | 2018 |
| Avocadium Cakes and Pastries Ltd | New Malden | 2024 |
| Avocadium Catering Ltd | New Malden | 2024 |
| Avocadium Delirium Ltd | New Malden | 2023 |
| Avocado and Chickpeas Ltd | North Shields | 2020 |
| Avocado Envy Limited | Brighouse | 2022 |
| Avocado on Toast Limited | London | 2025 |
| Avocet and Sanderlings Limited | Lowestoft | 2022 |
| Avocet Care & Support Ltd | Rochford | 1969 |
| Avocet Inns Ltd | Lympstone, Exmouth | 2022 |
| Avocet Staffing Limited | Ely | 2019 |
| Avoda Housing CIC | Boston | 2026 |
| Avodah Services Limited | Coventry | 2022 |
| Avoeats Limited | London | 2025 |
| Avoid the Noise Ltd | Glasgow | 2022 |
| Avon Autistic Foundation Limited | Bristol | 1984 |
| Avon Beach Ltd | Poole | 2012 |
| Avon Business Holdings Ltd | London | 2021 |
| Avon Catering Limited | Kenilworth | 2024 |
| Avon China Limited | Milton Keynes | 2019 |
| Avon Estates (Parksales) Limited | Stratford Upon Avon | 1983 |
| Avon Estates Limited | Stratford Upon Avon | 2010 |
| Avon Events Ltd | Bristol | 2026 |
| Avon Farm Management Company Limited | Salisbury | 2003 |
| Avon Foods Limited | Egham | 2020 |
| Avon Haven Limited | Bristol | 2025 |
| Avon Holiday Cottages Ltd | Alcester | 2019 |
| Avon Kebab Ltd | London | 2026 |
| Avon Kitchen Limited | Devizes | 2022 |
| Avon Leisure Resources Ltd | Nr Pershore | 2003 |
| Avon Pacific Limited | Abinger Hammer | 2021 |