| Ants Industries (UK) Co., Limited | Cardiff | 2010 |
| Antunes Accountancy Services Ltd | Surbiton | 2018 |
| Antunes Business Consulting Group Ltd | Manchester | 2026 |
| Antur (West Wales) Limited | London | 2008 |
| Anturas Consulting Ltd | Edinburgh | 2015 |
| Anturus Communications Limited | Dunkeld | 2016 |
| Anturus Limited | Pengam | 2018 |
| Antvision Ltd | Wilmslow | 2023 |
| Antwi Collective Ltd | London | 2026 |
| Antwis Engineering Limited | Sevenoaks | 1999 |
| Antwong Limited | London | 2024 |
| Antwort Limited | London | 2020 |
| Antworth Ltd | Mildenhall | 2018 |
| Antx Ltd | London | 2024 |
| Antylles Limited | Dorking | 2015 |
| Antz Network Limited | Manchester | 2011 |
| ANU Capital Limited | Kington | 2025 |
| ANU Consultants Limited | Exeter | 2013 |
| ANU Malyka Ltd | London | 2025 |
| Anuara ALI Limited | Bradford | 2022 |
| Anubis Consulting Ltd | London | 2026 |
| Anubis Contracting & Engineering Ltd | Bridgwater | 2020 |
| Anubis Development Limited | Redditch | 2006 |
| Anubis Real Estate Ltd | Edenbridge | 2026 |
| Anuc Ltd | London | 2018 |
| Anuj Shah Limited | Kenton | 2008 |
| Anuk Consultancy Limited | London | 2020 |
| Anulap Consulting Ltd | London | 2023 |
| Anuli Ltd | London | 2023 |
| Anulytics Limited | Twickenham | 2025 |
| Anume Limited | Eastbourne | 2012 |
| Anumegha Consulting Services Limited | Leighton Buzzard | 2023 |
| Anumerate Limited | Bromley | 2014 |
| Anumi Group Ltd | Harrogate | 2024 |
| Anuna Limited | Royston | 2014 |
| Anuneev Ltd | Shepperton | 2025 |
| Anup Bagade Limited | Hemel Hempstead | 2018 |
| Anupam Sharma Consulting Limited | Kentish Town | 2021 |
| Anura Ventures Limited | Croydon | 2019 |
| Anushka Consultancy Limited | London | 2021 |
| Anushka Consulting Limited | Harrow | 2004 |
| Anuuk Ltd | Birmingham | 2022 |
| Anuvu UK Holdings Limited | Great Warley | 2005 |
| ANV Engineering Ltd | Aberdeen | 2011 |
| ANV Intermediaries Limited | London | 2019 |
| ANV Private Limited | Godstone | 2022 |
| Anva Ltd | Ilford | 2023 |
| Anval Business Consultancy Ltd | Loughborough | 2022 |
| Anvald Technology Solutions Ltd | Norwich | 2023 |
| Anvari Design Limited | Bristol | 2014 |
| Anvast UK Limited | Castleford | 2010 |
| Anvaya Engineering Limited | Westhill | 2013 |
| Anvaya Limited | Pinner | 2016 |
| Anveer Limited | High Wycombe | 2020 |
| Anvenssa Ltd | Ashford | 2025 |
| Anvewo | Wigan | 2023 |
| Anvex Limited | Hayling Island | 1994 |
| Anvic Solutions Limited | Nelson | 2019 |
| Anvil Consultants Limited | Newport | 2006 |
| Anvil Consulting (North West) Limited | Northwich | 2001 |
| Anvil Consulting Limited | Alderley Edge | 2024 |
| Anvil Consulting Services Limited | Ballynahinch | 2024 |
| Anvil Design Ltd | Chester | 2025 |
| Anvil Equine Limited | Bridgwater | 2010 |
| Anvil Green Services Limited | Burscough | 2020 |
| Anvil Law Limited | Blackburn | 2012 |
| Anvil Machinery Safety Consultants Ltd | Leicester | 2026 |
| Anvil Manufacturing Consulting Limited | Leigh-On-Sea | 2026 |
| Anvil Resourcing Solutions Ltd | Tring | 2022 |
| Anvil Security Ltd | Tiverton | 2021 |
| Anvil Semiconductors Limited | London | 2010 |
| Anvil Technologies Limited | Edenbridge | 2025 |
| Anvilgem Limited | Market Drayton | 1984 |
| Anvilstar Limited | London | 1992 |
| Anvita International Limited | Horsham | 2012 |
| Anvivo Polar Research Ltd | London | 2013 |
| Anviya Global Ltd | London | 2026 |
| Anvoner Consulting Ltd | Kington | 2026 |
| Anvoner Law Ltd | London | 2022 |
| Anvora Digital Solutions Ltd | Birmingham | 2025 |
| ANW Architects Ltd | Burnley | 2021 |
| ANW Law Ltd | Leeds | 2021 |
| Anwaltskanzlei Stefan Seuss Ltd | Kington | 2022 |
| Anwar & Gousia Group Ltd | Sheffield | 2025 |
| Anwar Advisory Ltd | Rainham | 2025 |
| Anwar ALI Consultants Limited | Croydon | 2014 |
| Anwar Bhatti and Co Ltd | Thornton Heath | 2025 |
| Anwar Consultants Ltd | Hornchurch | 2011 |
| Anwar Holdings Ltd | Walsall | 2020 |
| Anwar IT Services Ltd | Manchester | 2013 |
| Anwar Legal Consultancy Limited | London | 2022 |
| Anwar Legal Services Limited | Manchester | 2025 |
| Anwara Limited | Rugby | 2012 |
| Anwcs Ltd | Lancing | 2024 |
| Anwedd Consulting Ltd | Whitehills Business Park | 2021 |
| Anwellhouse Accountancy Services Ltd | Carnforth | 2014 |
| Anwick Creative Limited | Nottingham | 2025 |
| Anwm Ltd | Derby | 2023 |
| Anxhelita Limited | Ipswich | 2026 |
| Anxiety LAB Ltd | Waltham Abbey | 2025 |