| Anthony Lesley Ltd | Birmingham | 2018 |
| Anthony Mann Limited | London | 2017 |
| Anthony Mayes London Limited | London | 2024 |
| Anthony Mcgill Ltd. | Glasgow | 2017 |
| Anthony Michael Hair Design Limited | West Midlands | 2000 |
| Anthony Michael Limited | East Sussex | 1997 |
| Anthony Nails 196 Ltd | London | 2022 |
| Anthony Nails 6868 Ltd | Alloa | 2026 |
| Anthony Nails Spa Ltd | Romford | 2024 |
| Anthony Nguyen Ltd | Truro | 2025 |
| Anthony Paul Designer Goldsmith Limited | Maidenhead | 2008 |
| Anthony Phillips Productions Limited | London | 1977 |
| Anthony Pratt Fine Arts Limited | Kent | 1991 |
| Anthony Pytlinski Hair Limited | Shuttington | 2019 |
| Anthony Rawsthorne Group Ltd | London | 2024 |
| Anthony Scott Hair Ltd | Derby | 2018 |
| Anthony Shopland 123 Limited | Aberdare | 2020 |
| Anthony Travis Associates Limited | Berkshire | 2002 |
| Anthony Travis Limited | Reading | 2022 |
| Anthony Turner Creative Limited | London | 2014 |
| Anthony Waring of Dartmouth Limited | Torquay | 2013 |
| Anthony Webb & SON Limited | Cannock | 2007 |
| Anthony William Furniture Ltd | Wigan | 2017 |
| Anthony Wyke QA and QC Inspection Services Ltd | Middlesbrough | 2008 |
| Anthony's Barbers Limited | Sidcup | 2025 |
| Anthony's Hairdressing for MEN Limited | London | 2006 |
| Anthonyvarg Holdings Ltd | Hounslow | 2021 |
| Anthos One Ltd | Bath | 2019 |
| Anthropocene Actions C.I.C. | Bristol | 2017 |
| Anti Caste Discrimination Alliance (Acda) | Letchworth | 2017 |
| Anti Copying in Design Limited | Chichester | 1997 |
| Anti Entropy UK | London | 2025 |
| Anti Gone London Ltd | Pinner | 2014 |
| Anti Ltd | Arnold, | 2024 |
| Anti-Ageing Aesthetics Kendal Ltd | London | 2024 |
| Anti-Ageing Aesthetics Ltd | London | 2018 |
| Anti-Bored Sourcing Ltd | Bourne | 2025 |
| Anti-Ligature Inspections Services Ltd | Merseyside, Liverpool | 2024 |
| Anti-Poaching Support Unit Ltd | Hockley | 2021 |
| Anti-Snap Locks (West Midlands) Ltd | Wolverhampton | 2018 |
| Anti.Dote Salons Limited | York | 2021 |
| Antibody Production Services Limited | Radlett | 2015 |
| Antics Events Ltd | Peterborough | 2019 |
| Antidote Boutiques Ltd | Tarporley | 2020 |
| Antidote Hair Ltd | Kingswinford | 2020 |
| Antidotehairuk Limited | Sheffield | 2022 |
| Antilles Network Limited | Dunstable | 2025 |
| Antinous 333 Ltd | Watford | 2023 |
| Antioch (North Wales) | Colwyn Bay | 2003 |
| Antioch Christ Missions Centre | Romford | 2019 |
| Antiochian Orthodox Church of OUR Lady and Saint Ninian Ltd | Castle Douglas | 2025 |
| Antiochian Orthodox Society of Britain | London | 1987 |
| Antiquarian Booksellers Association (International) | London | 2003 |
| Antiquarian Horological Society(The) | London | 1954 |
| Antique Auctions Support Network Ltd | London | 2008 |
| Antique Bronze Limited | London | 1993 |
| Antique Ceramic Restoration Ltd | Macclesfield | 2008 |
| Antique Conservation Ltd | Cheadle | 2017 |
| Antique Retail Ltd | Aberdeen | 2025 |
| Antique Unique Upholstery Limited | Leigh-On-Sea | 2020 |
| Antiqueclockwise Ltd | Corsham | 2012 |
| Antiquities Dealers' Association | Southend On Sea | 2022 |
| Antiqusy Limited | London | 2023 |
| Antirrhinum Majus Ltd | London | 2025 |
| Antiwes Ltd | Ottery St. Mary | 2018 |
| Antler Financial Services Limited | Manchester | 2023 |
| Antler Hair & Beauty Limited | Harrow | 2010 |
| Antler Ventures Scotland GP I Ltd | Glasgow | 2019 |
| Anto's Yacht Services Limited | Ipswich | 2024 |
| Antoaneta Beauty Ltd | New Malden | 2021 |
| Antoines Limited | Reigate | 2008 |
| Antolin Interiors Services Limited | Redditch | 2015 |
| Antoma Ltd | London | 2026 |
| Anton AJ Limited | Wigan | 2022 |
| Anton Antoni Barber BUS Limited | Dover | 2018 |
| Anton Hill Associates Limited | Hexham | 2018 |
| Antonacci Hair & Beauty Ltd | Manchester | 2019 |
| Antone's Chelsea Ltd | Chelsea | 2023 |
| Antonella Beauty Ltd | Croydon | 2016 |
| Antonella Hair Boutique Ltd | London | 2024 |
| Antones House of Hair Limited | London | 2003 |
| Antoni Ventures Ltd | Towcester | 2025 |
| Antonia Edward Hair Design Limited | Billingham | 2002 |
| Antonia Edwards Upholstery Limited | Basingstoke | 2014 |
| Antonia Julia Ltd | London | 2023 |
| Antoninus Limited | Bristol | 2012 |
| Antonio Barrow Limited | Barrow In Furness | 2025 |
| Antonio Cruz Makeup Ltd | Manchester | 2024 |
| Antonio Giovanni Limited | Ipswich | 1999 |
| Antonio OIL Ltd | London | 2022 |
| Antonio Traders Ltd | Glasgow | 2019 |
| Antonios Hair Studio Ltd | Twickenham | 2026 |
| Antonios Luxury Handbag and Leather Repairs Ltd | London | 2023 |
| Antonios MG Ltd | Coulsdon | 2022 |
| Antoniou Hair Fashions Limited | Kent | 1968 |
| Antony and Patricia 24 Limited | Rossendale | 2024 |
| Antony Daniel Barbers Ltd | Northampton | 2026 |
| Antony FOX Services Ltd | Campbeltown | 2022 |
| Antony Harwood Limited | London | 2000 |
| Antony Turner Permanent Makeup Limited | Leeds | 2021 |