| Anomalous Investments 3 Ltd | London | 2025 |
| Anomalous Investments Ltd | London | 2022 |
| Anomaly Consultants Limited | Brentwood | 2002 |
| Anomaly Group Holdings Ltd | Menai Bridge | 2013 |
| Anon UK Holding Limited | Leeds | 2004 |
| Anora Investments Ltd | London | 2025 |
| Anord Mardix Acquisitions Limited | Kendal | 2017 |
| Anoseir Ltd | Whalley Range | 2020 |
| Another Corporate Company Limited | London | 2024 |
| Another Holding Company Limited | Worcester | 2024 |
| Another Lane EN Limited | Clifton Moor | 2011 |
| Another Lane GB Ltd | Staines | 2014 |
| Another Place (Mortgage Brokers) Ltd | Chester | 2019 |
| Anotherway Ventures Limited | London | 2022 |
| Anoushka Ltd | South Croydon | 2011 |
| Anoushner Ltd | London | 2024 |
| Anova Financial Trading Ltd | Birmingham | 2019 |
| Anova Holdings Limited | Harpenden | 2021 |
| Anovi Holdings Limited | Lutterworth | 2019 |
| ANP Capital Ltd | Ruddington | 2026 |
| ANP Dental Ltd | Leeds | 2023 |
| ANP Fire Assessment Ltd | London | 2025 |
| ANP Invest Limited | London | 2015 |
| ANP Investments Limited | Northampton | 2013 |
| ANP Ltd | Cardiff | 2017 |
| ANP Media Holdings and Investments Ltd | Dudley | 2024 |
| Anpa Forward Ltd | London | 2007 |
| Anpr Enforcer Ltd | Dartford | 2018 |
| Anpro Holdings Limited | London | 1988 |
| Anpthapwes Ltd | Bolton | 2026 |
| Anqa Global Advisors Limited | London | 2025 |
| ANR Corporation Ltd | Sutton Coldfield | 2013 |
| ANR Group Limited | Blackwood | 2025 |
| ANR Mortgages Ltd | Birmingham | 2023 |
| ANR RP Limited | Reading | 2023 |
| ANR Solar (UK) Limited | Reading | 2023 |
| Anra Group Ltd | Bognor Regis | 2018 |
| Anray Limited | London | 2007 |
| Anrel Holdings Ltd | London | 2025 |
| Anrg Holdings Limited | London | 2026 |
| Anro Financial Planning Limited | Isleworth | 2018 |
| Anro Holdings Limited | London | 2023 |
| Anrok Limited | Northwood | 2021 |
| Anrupe Services Limited | London | 2016 |
| ANS Bidco Limited | Manchester | 2020 |
| ANS Group Global Holdings Limited | Chichester | 2019 |
| ANS Group Holdings Limited | Manchester | 2020 |
| ANS Holdco Ltd | Birmingham | 2023 |
| ANS International Ltd | London | 2020 |
| ANS Midco 2 Limited | Manchester | 2018 |
| ANS Midco 3 Limited | Manchester | 2018 |
| ANS Property Holdings Limited | Walsall | 2024 |
| ANS1 Ltd | Blackburn | 2023 |
| Ansa Elevators AB Ltd | Oldham | 2022 |
| Ansaam United Limited | Stainmore | 2018 |
| Ansaari Limited | London | 2016 |
| Ansar Finance Investments Limited | Manchester | 2004 |
| Ansar Finance Ltd | Manchester | 2004 |
| Ansari Holding Limited | Nottingham | 2025 |
| Ansars Estate Agents Ltd | Smethwick | 2013 |
| Ansasoha Holdings Ltd | Rugby | 2023 |
| Ansbrook Limited | Harrow | 2022 |
| Ansco Holdings Limited | Swindon | 2018 |
| Ansco Properties Limited | Romford | 2001 |
| Anscombe Limited | Burton-On-Trent | 2026 |
| Ansell Group Risk Consulting Ltd | Dorking | 2024 |
| Ansell Holdings Ltd | Much Hadham | 2025 |
| Anser Ltd | Carlisle | 2021 |
| Ansh Financial Services Ltd | Borehamwood | 2024 |
| Anshika Services Limited | Bedworth | 2020 |
| Ansiram Management Group Limited | London | 2026 |
| Anslow Holdings Limited | Burton-On-Trent | 2023 |
| Ansom Capital Limited | London | 2024 |
| Anson Capital Ltd | Colchester | 2026 |
| Anson Pharma Holding Ltd | London | 2025 |
| Ansonby Group Ltd | St. Albans | 2023 |
| Ansonsco 10 Limited | Oldbury | 2019 |
| Ansor GP Member 1 Limited | London | 2019 |
| Ansor GP Member 2 Limited | Edinburgh | 2019 |
| Ansor II GP Member 1 Limited | London | 2024 |
| Ansor II GP Member 2 Limited | Edinburgh | 2024 |
| Anstar Group Limited | Leeds | 2026 |
| Anstee & Co Limited | Warwick | 2012 |
| Anstey Financial Planning Limited | Exeter | 2000 |
| Anstey Ventures Limited | Bristol | 2025 |
| Anstone RHS Limited | Brighton | 2025 |
| Ansty House Holdings Limited | Henfield | 2025 |
| Ansui | Kenilworth | 2018 |
| ANT Asset Management Limited | Cardiff | 2021 |
| ANT Holdings Limited | Atherstone | 2015 |
| ANT Investment Group Limited | Batley | 2025 |
| ANT Protect Limited | Sheffield | 2010 |
| ANT Worldwide Ltd | Clevedon | 2023 |
| Antalya Services Ltd | Wolverhampton | 2022 |
| Antarctica Asset Management (Europe) Limited | London | 2015 |
| Antares Agency Acquisition Ltd | London | 2023 |
| Antares Capital I Limited | London | 2009 |
| Antares Capital III Limited | London | 2010 |
| Antares Capital Investments Ltd | Newport | 2021 |
| Antares Capital IV Limited | London | 2011 |