| Arale Ltd | Bracknell | 2015 |
| Aralex Consulting Limited | Pinner | 2003 |
| Aralia Creative Ltd | London | 2022 |
| Aralius Ltd | Birmingham | 2010 |
| Araliya Solutions Ltd | Chatham | 2011 |
| Aralon Advisory Services Limited | | 1982 |
| Aram Advisory Ltd | Bromley | 2026 |
| Aram Capital Ltd | London | 2012 |
| Aram Consulting Limited | Colwyn Bay | 2025 |
| Aram Inc. Ltd. | Sutton | 2017 |
| Aram Interpreting and Translation Services Ltd | London | 2026 |
| Aram Legal Counsel Limited | London | 2020 |
| Aram Strategy Ltd | London | 2026 |
| Aram& Co Ltd | Birmingham | 2019 |
| Arama Partners Ltd | Hounslow | 2018 |
| Aramamorsky Limited | London | 2018 |
| Aramar Limited | Wolverhampton | 1986 |
| Aramas Law Limited | Manchester | 2019 |
| Aramat Limited | Suffolk | 1999 |
| Aramax Management Solutions Limited | Stafford | 1999 |
| Aramco Group Ltd | Milton Keynes | 2026 |
| Aramco Ltd | Nelson | 2017 |
| Aramesh Trustees Limited | Upton | 2026 |
| Arami.Shotituk Ltd | Chigwell | 2026 |
| Aramiche Solutions Limited | Rainham | 2018 |
| Aramid Contracts Ltd | Bedford | 2011 |
| Araminta Marketing Ltd | London | 2017 |
| Araminta Solutions Limited | London | 2023 |
| Aramis Capital Ltd | London | 2025 |
| Aramis Holdings Limited | London | 2009 |
| Aramis Search UK Ltd | Exmouth | 2026 |
| Aramis Services Limited | London | 2024 |
| Aramm Legal Ltd | London | 2016 |
| Aramos Ltd | London | 2019 |
| Arams Southern | Manchester | 2020 |
| Aramund Capital Limited | London | 2023 |
| Aramune Technologies Limited | Belfast | 2021 |
| Aran Acoustics Ltd | London | 2013 |
| Aran Advisory Services Limited | Telford | 2023 |
| Aran Associates Ltd | Bury St. Edmunds | 2023 |
| Aran BAS Design Limited | London | 2014 |
| Aran Business Team Ltd | London | 2026 |
| Aran Consultancy Ltd | Harrow | 2010 |
| Aran Consultants Ltd | Hampshire | 2025 |
| Aran Diez Consulting Ltd | Sutton | 1992 |
| Aran Group Consultancy Ltd | St Neots | 2025 |
| Aran Professional Services Limited | Lytham St.Annes | 2017 |
| Aran Property Consultants Limited | Harrow | 2010 |
| Aran Scientific Communications Ltd | Upminster | 2022 |
| Aran VET Centre Limited | Llanymynech | 2008 |
| Aranca UK Limited | London | 2003 |
| Arancia Coaching Ltd | Manchester | 2023 |
| Arancini Solutions Ltd | Harpenden | 2025 |
| Arancor Ltd | Bournemouth | 2017 |
| Aranda People Limited | London | 2024 |
| Arandar Limited | Wantage | 2003 |
| Arandi Limited | Hertfordshire | 2007 |
| Arandur Accounting Limited | Polegate | 2013 |
| Arangath Ltd | London | 2026 |
| Arango Ltd | London | 2018 |
| Arani Solicitors Limited | Southall | 2006 |
| Araniq Ltd | London | 2023 |
| Aranjo Marketing Solutions Limited | Glasgow | 2013 |
| Aranoia Ltd | Cardiff | 2012 |
| Aranstone Investments Limited | Waterlooville | 2020 |
| Arantis Ltd | Bury | 2025 |
| Aranya Consulting Limited | Edgware | 2017 |
| Aranyaka Ltd | Stockport | 2024 |
| Araok Consulting Limited | London | 2017 |
| Arapaho Limited | Harrogate | 2003 |
| Arapaima Ltd | London | 2025 |
| Arapex Consulting Limited | Chigwell | 2023 |
| Araps Consulting Limited | London | 2015 |
| Araquis Limited | West Drayton | 2020 |
| Arara Consulting Ltd | London | 2017 |
| Ararat Accountants Ltd | South Ockendon | 2022 |
| Ararat Consultants Limited | London | 2025 |
| Ararat Designs Limited | Dorset | 2001 |
| Ararius Limited | London | 2019 |
| Ararna Limited | Coventry | 1999 |
| Aras Civils Limited | Sale | 2020 |
| Aras Legal Ltd | London | 2017 |
| Aras Translation and Immigration Services Ltd. | Birmingham | 2013 |
| Aras Ventures Ltd | London | 2024 |
| Arasaig Limited | Southampton | 2022 |
| Arascow Ltd | London | 2025 |
| Arase Consult Ltd | Warrington | 2017 |
| Arash JAM Studio Ltd | Surbiton | 2019 |
| Arash Ltd | Tadworth | 2018 |
| Arash Technologies Limited | Newmarket | 2020 |
| Arash&Co Limited | London | 2026 |
| Arata Ltd | Peterborough | 2020 |
| Aratellus Subsea Limited | Aberdeen | 2023 |
| Aratus Capital Limited | Birmingham | 2012 |
| Aratus Global Ltd | London | 2018 |
| Araucana Limited | Manchester | 2011 |
| Araucaria Partners Ltd | Bourne End | 2024 |
| Arav Consultancy Services Limited | Basingstoke | 2022 |
| Arav Fashion Services UK Ltd | Croydon | 2023 |
| Arava Group Ltd | London | 2026 |