| Arshad N Family Limited | London | 2024 |
| Arshinton Group Ltd | London | 2006 |
| Arsi Labs Ltd | Leicester | 2022 |
| Arslan Financial Services Ltd | Ruislip | 2014 |
| Arsp Property Investment Ltd | Godalming | 2021 |
| Arspg Holdings Limited | Ammanford | 2018 |
| Arsuni Ltd | London | 2025 |
| Art 3SHOLD Ltd | London | 2022 |
| Art 86 Limited | Bolton | 2019 |
| Art Asset Operations Limited | London | 2023 |
| Art Business Ventures (UK) Ltd | London | 2025 |
| Art Capital Group Ltd | London | 2026 |
| Art Crematoria Holdco 2 Limited | London | 2025 |
| Art Crematoria Holdco Limited | London | 2024 |
| Art Development Services Limited | Birmingham | 2004 |
| Art Estates (Holdings) Limited | Guildford | 2023 |
| Art Group Holdings Limited | Newcastle-Under-Lyme | 2007 |
| Art Holding Co. Limited | London | 2020 |
| Art Holdings Limited | London | 1986 |
| Art Income Holdco Limited | London | 2022 |
| Art Investments UK Limited | West Malling | 2006 |
| Art of Financial Planning Limited | Taplow | 2013 |
| Art of Football (Property) Ltd | Nottingham | 2022 |
| Art of Mortgage Co Ltd | Derby | 2025 |
| Art of Tea Leisure Holdings Limited | Manchester | 2010 |
| Art of Travel Enterprises Ltd | Cardiff | 2025 |
| Art on ALL Limited | Newry | 2026 |
| Art on Glass Holdings Ltd | Wisbech | 2018 |
| Art Republic Limited | Stevenage | 2025 |
| Art SAN Holdings Ltd | Plymouth | 2025 |
| Art Southend Limited | London | 2020 |
| Art Stone Properties Ltd | Northampton | 2026 |
| Art UK Holdings Ltd | Lewes | 2024 |
| Art Which Ltd | London | 2021 |
| Art-Safe Holdings Ltd | Rugeley | 2023 |
| Artak Consultancy Ltd | Milton Keynes | 2025 |
| Artal Group Limited | Manchester | 2024 |
| Artal Holdings Limited | Manchester | 2020 |
| Artancient Holdings Limited | London | 2013 |
| Artannes Capital Limited | London | 2003 |
| Artav Holdings Limited | Middlesbrough | 2021 |
| Artboy Limited | London | 2005 |
| Artbrisk Capital Ltd | London | 2020 |
| Artclaims Limited | Stroud | 2018 |
| Artco Capital Limited | London | 2025 |
| Artco Holding Ltd | Lincoln | 2021 |
| Artcry Ltd | Brighton | 2020 |
| Arte Holdings Limited | London | 2020 |
| Artech Holdings Limited | Brighton | 2020 |
| Arted Capital Limited | London | 2024 |
| Artefact Partners Ltd | London | 2025 |
| Artek Fabrication Limited | York | 2025 |
| Artel Holdings Limited | London | 2021 |
| Artelia Capital Limited | London | 2024 |
| Artelia Limited | London | 2024 |
| Artelia Ventures Limited | London | 2024 |
| Artell UK Ltd | Birmingham | 2024 |
| Artelna Limited | Didcot | 2010 |
| Artem Investment & Advisory Ltd | London | 2021 |
| Artem Wealth Group Limited | Wakefield | 2026 |
| Artemide Holding Ltd | London | 2019 |
| Artemiris Holdings Ltd | Barnet | 2022 |
| Artemis (Northern) Ltd | Widnes | 2013 |
| Artemis 2 Limited | London | 2026 |
| Artemis Acquisitions (UK) Limited | London | 2017 |
| Artemis Adjusting Limited | Northampton | 2017 |
| Artemis Advisors Limited | Edgware | 2005 |
| Artemis Aerospace Holdings Limited | Hove | 2024 |
| Artemis AG Limited | London | 2011 |
| Artemis Alpha Trust PLC | London | 1931 |
| Artemis Asset Finance Limited | Alfreton | 2026 |
| Artemis Asset Management Limited | Edinburgh | 2007 |
| Artemis Bidco Limited | Hemel Hempstead | 2021 |
| Artemis Bridging Limited | Glasgow | 2018 |
| Artemis Education QIQ Holdings Limited | London | 2024 |
| Artemis Energy Limited | London | 2025 |
| Artemis Financial Planning Limited | Loughborough | 2025 |
| Artemis Financial Services Limited | Darlington | 2023 |
| Artemis Forge Ltd | Llanymynech | 2026 |
| Artemis Fortitude Solutions Limited | Bournemouth | 2016 |
| Artemis Fund Managers Limited | London | 1986 |
| Artemis Holdco (UK) Limited | London | 2018 |
| Artemis IM Holdings Ltd | Bromley | 2026 |
| Artemis Insurance Brokers Ltd. | Purley | 2010 |
| Artemis Land and Agriculture Limited | London | 2018 |
| Artemis Midco (UK) Limited | London | 2018 |
| Artemis MM Resources London Ltd | London | 2021 |
| Artemis Mortgages Parent Limited | London | 2021 |
| Artemis Mortgages PLC | London | 2021 |
| Artemis Mortgages Seller Limited | London | 2023 |
| Artemis NE Ltd | Middlesbrough | 2025 |
| Artemis Nova Holdings Ltd | Llanymynech | 2026 |
| Artemis Origination Holdings Limited | London | 2023 |
| Artemis Projex Holdings Limited | Harrow | 2025 |
| Artemis Security Ltd | Ware | 2025 |
| Artemis Strategic Asset Management Limited | Edinburgh | 1997 |
| Artemis Surgical Ltd | Otley | 2026 |
| Artemis Topco Limited | London | 2023 |
| Artemis UK Future Leaders PLC | London | 1987 |
| ARTEMIS12 Limited | London | 2025 |