| Avanti (ABI) Ltd | St. Leonards-On-Sea | 2011 |
| Avanti Care Services Limited | St Albans | 2017 |
| Avanti Childcare Limited | Keighley | 2019 |
| Avanti Children Services Ltd | Norwich | 2023 |
| Avanti Dental Limited | Northampton | 2019 |
| Avanti Fostering Ltd | Stanmore | 2019 |
| Avanti Home Care (NW) Ltd | Accrington | 2024 |
| Avanti Homecare (Ripley) Limited | Nottingham | 2020 |
| Avanti Homecare (Training) Limited | Nottingham | 2020 |
| Avanti Homecare Limited | Nottingham | 2018 |
| Avanti Living Limited | Birmingham | 2026 |
| Avanti Medcare Ltd | Leigh | 2022 |
| Avanti Medical Group Ltd | Luton | 2025 |
| Avanti Medical Limited | North Finchley | 2019 |
| Avanti Support Services Ltd | Waltham Cross | 2025 |
| Avantif Ltd | Tunbridge Wells | 2025 |
| Avantis Living Trade Limited | Bradford | 2022 |
| Avantus Clean Ltd | Glasgow Central | 2025 |
| Avanza Medical Limited | Beckenham | 2021 |
| Avara MED Limited | London | 2025 |
| Avari Care Ltd | Exeter | 2026 |
| Avas Medical Ltd | Chesham | 2016 |
| Avastatraya Ltd | King'S Lynn | 2018 |
| Avatar Care Ltd | London | 2020 |
| Avatar DNA Limited | London | 2019 |
| Avatar SWH Limited | Birmingham | 2021 |
| Avawell Ltd | West Hampstead | 2019 |
| AVB Enterprises Ltd | Leicester | 2023 |
| AVB Oncology Limited | Romsey | 2014 |
| AVB Radiology Solutions Limited | Paisley | 2017 |
| AVC Anaesthetic Services Ltd | London | 2012 |
| AVC Healthcare Limited | Canterbury | 2022 |
| Avch Limited | Wembley | 2011 |
| AVE @ Home Limited | Bromley | 2019 |
| AVE Kotze Psychology Practice Ltd | Ross On Wye | 2025 |
| AVE Maria Care Ltd | Sutton Coldfield | 2014 |
| AVE Maria Limited | Aylesbury | 2014 |
| AVE Maria Medics Limited | Scunthorpe | 2025 |
| Aveado Limited | Bristol | 2018 |
| Avebo Ltd | Borehamwood | 2024 |
| Avec Dieu Services Limited | London | 2019 |
| Avec Support Ltd | Wednesbury | 2019 |
| Avec Support Services Ltd | Loughborough | 2026 |
| Avecare Limited | Southport | 2017 |
| Avejesuloba Limited | London | 2014 |
| Avejune Care Ltd | London | 2024 |
| Avela Aesthetics Limited | Ashbourne | 2025 |
| Avela Care Limited | Bishop Auckland | 2025 |
| Avela Healthcare Limited | Haywards Heath | 2022 |
| Avelar Aesthetics Ltd | Southampton | 2023 |
| Aveley Lodge Retirement Homes Limited | Ipswich | 2009 |
| Aveline Therapy Limited | Birmingham | 2025 |
| Avelino Limited | Cambridge | 2015 |
| Avellino Care Ltd | Cannock | 2023 |
| AVELON88 Ltd | Dartford | 2025 |
| Avelyn & Gill Ltd | Hornchurch | 2016 |
| Aven Care Group Ltd | Northwood Hills | 2026 |
| Aven Care Limited | Prestatyn | 2026 |
| Avena Clinic Ltd | London | 2023 |
| Avena Healthcare Ltd | Manchester | 2024 |
| Avenbury Care Farm C.I.C. | Worcester | 2016 |
| Avenbury CF C.I.C. | Bishops Frome | 2016 |
| Avencia Care Ltd | Birmingham, | 2026 |
| Avengers Prime Care Ltd. | Ashford | 2015 |
| AVENGERS1ANGELS.HEALTHCARE Ltd | London | 2018 |
| Avening Limited | Cardiff | 2017 |
| Avenna THF Ltd | Aylesbury | 2017 |
| Avens Care Homes Limited | Plymouth | 2002 |
| Avens Ltd | Crowborough | 1994 |
| Avensys UK Ltd | Stourport-On-Severn | 2004 |
| Aventa Laboratory Limited | Birmingham | 2010 |
| Aventar Healthcare Limited | Bedworth | 2025 |
| Aventis Health Ltd | Newport | 2026 |
| Aventon Care Homes Ltd | London | 2025 |
| Aventon Care Homes Properties Ltd | London | 2025 |
| Aventura's Barbers Ltd | Croydon | 2015 |
| Aventurine Healing Ltd | Diss | 2014 |
| Aventurine House Ltd | Leeds | 2022 |
| Aventus Care Homes Ltd | Birmingham | 2019 |
| Aventus Care Limited | Northampton | 2015 |
| Aventus Care Solutions Limited | Birmingham | 2023 |
| Aventus Clinic Limited | Hitchin | 2021 |
| Aventus Dental Limited | Birmingham | 2022 |
| Aventus Healthcare Limited | London | 2017 |
| Avenue Aesthetics & Beauty Ltd | Lanark | 2024 |
| Avenue Care (Fareham) Limited | Titchfield Common | 2003 |
| Avenue Care Limited | Gloucester | 2023 |
| Avenue Care Services Limited | Dunfermline | 2014 |
| Avenue Community Nursing Home Limited | Middlesborough | 1985 |
| Avenue Dental Care Limited | Portsmouth | 2014 |
| Avenue Family Healthcare Limited | Harrow | 2021 |
| Avenue Health Limited | Sutton | 2012 |
| Avenue House Lymington Limited | Bournemouth | 2006 |
| Avenue Impact Development CIC | Derby | 2023 |
| Avenue Medical Limited | Romsey | 2025 |
| Avenue Osteopaths Limited | Loughton | 2016 |
| Avenue Pharm Investments Ltd | Harrow | 2007 |
| Avenue Therapies Ltd | Gerrards Cross | 2017 |
| Avenue Wellbeing Clinic Ltd | Harrow | 2025 |
| Avenues Care Ltd | Camberley | 2019 |