| Artington Group Limited | London | 2021 |
| Artio Carbon Limited | London | 2023 |
| Artio Global Investors Ltd | Potters Bar | 2011 |
| Artio MGA Services Limited | London | 2025 |
| Artiqa Group Limited | London | 2023 |
| Artis Advance Ltd | London | 2026 |
| Artis Consultancy Limited | Etchingham | 2016 |
| Artis Finance Limited | Leeds | 2020 |
| Artis Fire Solutions Limited | Birmingham | 2020 |
| Artis FS Ltd | London | 2016 |
| Artis Globe Ltd | London | 2024 |
| Artis Group Holdings Ltd | Aylesbury | 2024 |
| Artis Loanco 1 PLC | Manchester | 2020 |
| Artis Medical Ltd | London | 2023 |
| Artisan Acquisitionco Limited | London | 2023 |
| Artisan AI Limited | Nottingham | 2026 |
| Artisan Albany House Holdings UK Limited | Kington | 2024 |
| Artisan Care Group Limited | Northampton | 2021 |
| Artisan Digital Holdings Limited | Abingdon | 2013 |
| Artisan Edinburgh Ferry Road Limited | Edinburgh | 2022 |
| Artisan Edinburgh Shandon Holdings UK Limited | Kington | 2024 |
| Artisan Financial Limited | Chesterfield | 2015 |
| Artisan Green Holdings Ltd | Cinderford | 2023 |
| Artisan Holdings Ltd | Bromsgrove | 2026 |
| Artisan IVY Holdco Limited | Northampton | 2021 |
| Artisan Joinery Holdings Limited | Leicester | 2023 |
| Artisan Landscapes Group Limited | Westbury-On-Trym | 2022 |
| Artisan Midco Limited | London | 2023 |
| Artisan Mortgages Limited | Chesterfield | 2023 |
| Artisan of Everything Ltd | Cambridge | 2024 |
| Artisan Real Estate Development Managers Limited | Kington | 2020 |
| Artisan Recruitment Group Ltd | Portsmouth | 2025 |
| Artisan Retail (Holdings) Limited | Ilkley | 2023 |
| Artisan Topco Limited | London | 2022 |
| Artisan UK Holdings Limited | Northampton | 2024 |
| Artisanea Limited | Bournemouth | 2013 |
| Artist Nation Management Limited | London | 2010 |
| Artistic License Ltd | London | 2019 |
| Artistic Spaces Group Limited | London | 2021 |
| Artists Inclusive Limited | London | 2024 |
| Artium Group Limited | Leeds | 2021 |
| Artius Property Protection Limited | Crawley | 2015 |
| Artles Trades Ltd | Gloucester | 2025 |
| Artless Wealth Ltd | Colchester | 2020 |
| Artmax 41-44 Great QU Street Limited | London | 2018 |
| Artmax 43 Cornmarket Street Limited | London | 2018 |
| Artmax 44-46 Cornmarket Street Limited | London | 2018 |
| Artmax 86/88 Market Street Limited | London | 2018 |
| Artmax Craven House Limited | London | 2018 |
| Artmax Property Limited | London | 2018 |
| Arto London Ltd | Egham | 2020 |
| Artocopus Limited | Edgware | 2015 |
| Artogen Ltd | Exeter | 2025 |
| Artoges Limited | Ballymena | 2026 |
| Artois International S.A. Ltd | Canvey Island | 2020 |
| Arton Financial Services Limited | Edinburgh | 2001 |
| Arton Knight and Company Limited | London | 2016 |
| Artone Holdings II Ltd | Dartford | 2025 |
| Artone Holdings Ltd | Burnley | 2024 |
| Artori Limited | Exeter | 2006 |
| Artorius Holdings Limited | Portchester | 2021 |
| Artorius Limited | Hereford | 2024 |
| Artorius Wealth Investment Management Limited | Manchester | 2014 |
| Artorius Wealth Limited | Manchester | 2014 |
| Artos Systems Holding Company Limited | London | 2022 |
| Artow Limited | Moreton-In-Marsh | 2025 |
| Artpress Holdings Ltd | Dartford | 2021 |
| Artrep Ltd | Leyland | 2019 |
| Artrim Holdings Limited | Folkestone | 2024 |
| Artron Services Limited | Biggin Hill | 2018 |
| Artrup Ltd | Leyland | 2019 |
| Arts & Crafts Group Limited | London | 2023 |
| Arts Alliance Ltd | London | 2008 |
| Arts and Crafts SPV Limited | Halifax | 2023 |
| Arts Bar Holdings Limited | Liverpool | 2024 |
| Arts Marketing Holding Ventures Ltd | London | 2022 |
| Arts of Living Ltd | London | 2023 |
| Arts Properties Holdings Limited | London | 2025 |
| Artscapy Finance Ltd | Portsmouth | 2024 |
| Artstardam Ltd | London | 2008 |
| Artsure Limited | London | 2017 |
| Artt Developments Limited | Haywards Heath | 2025 |
| Arttay Limited | Reading | 2016 |
| Artticus Limited | Liverpool | 2025 |
| Artura Funding Solutions Ltd | Braintree | 2020 |
| Artura Holdings Ltd | Colchester | 2025 |
| Artura Pharma Holdings Ltd | Nottingham | 2025 |
| Arturo Clis Holdings Ltd | London | 2018 |
| Arturus Group Ltd | Lincoln | 2025 |
| Artusi Restaurants Limited | Ramsgate | 2016 |
| Artv Group Ltd | Bromley | 2025 |
| Artvera Private Wealth Management (UK) Ltd | London | 2012 |
| Artvision Holding Ltd | London | 2025 |
| Artweave Limited | London | 2016 |
| Artwork Reproductions Limited | London | 2020 |
| Artworks Solutions (EOT) Limited | Bristol | 2023 |
| Arty Intelligence Ltd | Cathcart | 2026 |
| Arty's Enterprises Ltd | Mold | 2023 |
| Artystone Holdings Limited | London | 2021 |
| ARU Holdings Limited | Blackburn | 2020 |