| Anodox Energy Systems (UK) Ltd | London | 2023 |
| Anointed Scents Ltd | Dorking | 2024 |
| Anok Precision UK Ltd | Stafford | 2024 |
| Anoka London Limited | Manchester | 2025 |
| Anolkem Group (UK) Ltd | Kington | 2025 |
| Anomalia Games Ltd | London | 2018 |
| Anomalous Limited | London | 2016 |
| Anomalous UN Limited | Manchester | 2021 |
| Anomaly Brewing Ltd | New Malden | 2019 |
| Anomaly Guitar Limited | Chatham | 2018 |
| Anomé Ltd | Mitcham | 2022 |
| Anonymous Coffee Limited | Henley-On-Thames | 2021 |
| Anoona Jewels Limited | London | 2016 |
| Anopol (South) Limited | Birmingham | 1988 |
| Anopol Group Limited | Birmingham | 2013 |
| Anopol Limited | Birmingham | 1967 |
| Anor Limited | Yeovil | 2019 |
| Anorak Digital Colour Management Limited | Pontefract | 2000 |
| Anord Mardix (UK) Limited | Kendal | 1966 |
| Anord Mardix Critical Power Services Limited | Kendal | 2011 |
| Anotek (UK) Ltd | Colne | 2018 |
| Another Beer Ltd | York | 2018 |
| Another Brewery Limited | Bristol | 2015 |
| Another Cupboard Limited | Keighley | 2026 |
| Another Dimension Brewing Co Ltd | Lancing | 2020 |
| Another Knitted Thing Ltd | Manchester | 2023 |
| Another Level Building Ltd | Bexhill On Sea | 2021 |
| Another Level Joinery Limited | Manchester | 2023 |
| Another Loop Ltd | North Shields | 2025 |
| Another Moment Ltd | Faversham | 2026 |
| Another Perfect Delivery Limited | Swindon | 2000 |
| Another Plan Ltd | Brighton | 2019 |
| Another Poem Ltd | London | 2025 |
| Another Window Company Ltd | Worcester Park | 2026 |
| Anotheranother Ltd | Bury St. Edmunds | 2025 |
| Anotronic Limited | Soulbury Leighton Buzzard | 1982 |
| Anourioriginal Ltd | London | 2025 |
| Anouska Georgia London Limited | Buckhurst Hill | 2018 |
| Anovra Ltd | Bradford | 2026 |
| ANP Clothing Ltd | Leicester | 2025 |
| ANP Designs Limited | Pen-Y-Bont Ar Ogwr | 2025 |
| ANP Luxury Ltd | Winchester | 2026 |
| ANP Ventilation Ltd | London | 2022 |
| Anpal Ltd | Telford | 2004 |
| Anpario PLC | Worksop | 1997 |
| Anping County Yexiang Hardware Wiremesh Products Limited | Gillingham | 2019 |
| Anpio Woods Ltd | Orton Southgate | 2020 |
| Anplas Ltd | Bury St. Edmunds | 2025 |
| Anpo Limited | London | 2025 |
| Anprospe Ltd | Kington | 2024 |
| Anqa Beauty Ltd | Sunbury On Thames | 2025 |
| ANR Blend Limited | Blackwood | 2025 |
| ANR Manufacturing Limited | London | 1996 |
| ANR Probrand Limited | Blackwood | 2025 |
| ANR Snacks Limited | Blackwood | 2025 |
| ANR Tyres Limited | Grays | 2010 |
| Anray Upholstery Limited | Nottingham | 2025 |
| Anros Design & Construction Ltd | Feltham | 2023 |
| Anross Limited | Leadgate Industrial Estate | 1980 |
| ANS Appliances Limited | London | 2016 |
| ANS Bristol Ltd | Milton Keynes | 2010 |
| ANS Carpentry Ltd | Watford | 2018 |
| ANS Kitchens Ltd | Stoke-On-Trent | 2024 |
| ANS Precision Engineering Ltd | Bristol | 2008 |
| ANS Print Services Ltd | Wickford | 2004 |
| ANS Steel Limited | Wembley | 2025 |
| ANS Surface Repairs Limited | Cheadle | 2022 |
| ANS Wholesale Limited | Leicester | 2018 |
| Ansa Door Systems Limited | Brierley Hill | 2003 |
| Ansa Elevators Limited | Chadderton | 1999 |
| Ansaa Textile Ltd | Ilford | 2025 |
| Ansaldo Nuclear Limited | Wolverhampton | 2003 |
| Ansar (Supersound) Ltd | Wisbech | 2019 |
| Ansari Electronics Ltd | Edinburgh | 2020 |
| Ansbo Int'L Limited | Kington | 2011 |
| Ansbro Ltd | Salisbury | 2020 |
| Ansco Signs Limited | Muir Of Ord | 2004 |
| Ansell & Wakefield Engineering Ltd. | Bristol | 1997 |
| Ansell Brands Ltd | Much Hadham | 2025 |
| Ansell Handtools (Sheffield) Limited | Sheffield, | 1989 |
| Ansell Inc. Limited | Tonbridge | 2016 |
| Ansell Jones Limited | Shipley | 2004 |
| Ansells Carpentry & Renovations Ltd | Gloucester | 2023 |
| Anselm Fraser Design Ltd | London | 2022 |
| Anser Digital Markerting Ltd | Manchester | 2025 |
| Ansh Earth Ltd | London | 2026 |
| Ansh Strategies Ltd | Ayr | 2022 |
| Anshi Manufacturing Services Ltd | Kinross | 2011 |
| Ansible Motion Limited | Bradford-On-Avon | 2009 |
| Ansini Limited | Derbyshire | 1995 |
| Ansjac (Holdings) Limited | Chelmsford | 1974 |
| Anslow Construction and Fire Safety Ltd | Anslow, Burton-On-Trent | 2025 |
| Anspach & Hobday Limited | London | 2012 |
| Ansrsa Ltd | Solihull | 2024 |
| Anstar Limited | Leeds | 2018 |
| Anstee Coil Technology Limited | Stonehouse | 2014 |
| Anstee Indication Systems Limited | Birmingham | 2022 |
| Anston Electrical Limited | Sheffield | 2012 |
| Ansun Foods Limited | Gravesend | 2024 |
| Ansur Communications Limited | Plymouth | 2007 |