| Arcj Distribution Ltd | Ongar | 2021 |
| Arclight Engineering Services Ltd | Warrington | 2018 |
| Arcmedia (Surrey) Ltd | South Godstone | 2008 |
| Arco Management Limited | Uxbridge | 2025 |
| Arco Real Estate Limited | London | 2021 |
| Arco Residential Limited | London | 2020 |
| Arcom Design Ltd | Hemel Hempstead | 2011 |
| Arcos Education Limited | Newcastle Upon Tyne | 2016 |
| Arcot Management Company Limited | Cardiff | 2004 |
| Arcphase Limited | | 1987 |
| Arcquility IT Solutions Limited | Uxbridge | 2024 |
| Arcsus IT Solutions Limited | Heanor | 2010 |
| Arctic Air Conditioning (NW) Ltd | St. Asaph | 2019 |
| Arctic Care Ltd | Wolverhampton | 2023 |
| Arctic Coast Ltd | Whitchurch | 2022 |
| Arctic Fresh Exports Ltd | London | 2026 |
| Arctic Ice (UK) Ltd | London | 2013 |
| Arctic Limited | Nottingham | 2007 |
| Arctic Paper UK Limited | London | 1983 |
| Arctic Services Group Ltd | London | 2025 |
| Arctic Services Limited | Radlett | 1998 |
| Arctic Smart Repairs Limited | Halesowen | 2013 |
| Arctic Tern Expeditions Limited | Pontefract | 2020 |
| Arctos Consulting Limited | Stevenage | 2024 |
| Arctura Holding Ltd. | Taunton | 2009 |
| Arctura Ltd. | Taunton | 2009 |
| Arctus Concierge Limited | Bridport | 2024 |
| Arcus Accountants Ltd | Oakham | 2019 |
| Arcus Physiotherapy Ltd | Ilminster | 2026 |
| Arcus Resources Ltd | Norwich | 2012 |
| Arcus Spmu Ltd | North Shields | 2024 |
| ARD Hand Car Wash Ltd | Battle | 2024 |
| ARD Leisure MCR Ltd | Rochdale | 2023 |
| Arda Gents Ltd | Brentwood | 2018 |
| Arda Stitch Ltd | Chester Le Street | 2026 |
| Ardala Cars Ltd | Waltham Abbey | 2016 |
| Ardash Ltd | Stockton-On-Tees | 2026 |
| Ardchattan Holdings Limited | Kilmarnock | 2014 |
| Ardea Picture Library Ltd | London | 2013 |
| Ardea Services (UK) Limited | London | 2022 |
| Ardechive Hydro Ltd | Forfar | 2015 |
| Ardecos & Sons Ltd | Ilford | 2024 |
| Ardeidae Limited | London | 2022 |
| Ardel Limited | Gerrards Cross | 2014 |
| Ardeley Village Green Management Company Limited | Stevenage | 2011 |
| Ardem Enterprise Ltd | Gravesend | 2015 |
| Arden & Rose Procurement Consultants Ltd | Esher | 2023 |
| Arden Aesthetics Limited | Bradford | 2021 |
| Arden Care Stratford Limited | Alcester | 2022 |
| Arden Clinic Limited | Bradford | 2011 |
| Arden Close Residents Management Company Ltd | Hayes | 2018 |
| Arden Eco Solutions Ltd | Birmingham | 2026 |
| Arden Group Holdings Limited | Coventry | 1994 |
| Arden Holdings Limited | Kintore | 1986 |
| Arden Media Limited | Oxford | 2008 |
| Arden Self Storage Limited | Banbury | 2006 |
| Arden Skincare Limited | Bradford | 2019 |
| Arden Smart Ironing & DRY Cleaning Limited | Birmingham | 2016 |
| Arden Ultraviolet Limited | Solihull | 2024 |
| Ardency Hair and Beauty Limited | Bolton | 2023 |
| Ardency Ltd | Birmingham | 2020 |
| Ardenfit Limited | Wolverhampton | 2019 |
| Ardenlea Enterprises Limited | Manchester | 2017 |
| Ardent Accounting Limited | London | 2019 |
| Ardent Corporation Ltd | Birmingham | 2020 |
| Ardent Expert Services Ltd | Manchester | 2020 |
| Ardentinny Community Trust Limited | Dunoon | 2003 |
| Ardentra Corp Limited | Craigavon | 2025 |
| Arder Limited | Oldham | 2017 |
| Ardfarnal Consulting Ltd | London | 2020 |
| Ardfield Engineering Limited | Harrow | 2019 |
| Ardgour Memorial Hall | Fort William | 2008 |
| Ardgowan Limited | Edinburgh | 2025 |
| Ardhikan Limited | Ilford | 2022 |
| ARDIL23 Limited | London | 2019 |
| Ardmat Services Limited | Leigh-On-Sea | 2013 |
| Ardmore Communications Ltd | London | 2026 |
| Ardmore Community Development Group Ltd | Londonderry | 2025 |
| Ardmore Woodley Limited | Ashford | 2020 |
| Ardnob Ltd | Wisbech | 2025 |
| Ardoch Agricultural Society Ltd. | Auchterarder | 2004 |
| Ardoch Development Trust | Dunblane | 2007 |
| Ardoff Limited | Thirsk | 2016 |
| Ardohr Limited | London | 1996 |
| Ardor & Co UK Limited | London | 2025 |
| Ardor Beauty Salon Ltd | London | 2025 |
| Ardor Beauty Studio Ltd | London | 2022 |
| Ardor Invictus Ltd | London | 2019 |
| Ardos Barber Shop Ltd | Newport | 2025 |
| Ardos Barbers Sunderland Ltd | Newcastle Upon Tyne | 2023 |
| Ardour Hair and Beauty Limited | London | 2020 |
| Ardr Limited | London | 2026 |
| Ardrishaig Community Trust | Tarbert | 2008 |
| Ardross Community Hall | Alness | 1997 |
| Ardrossan Community Development Trust Ltd | Ardrossan | 2019 |
| Ardsley Boarding Kennels Limited | Cleckheaton | 2010 |
| Ardua Communication Limited | Ashford | 1993 |
| Ardun Ltd | London | 2022 |
| Ardwell Community Kirk | Stranraer | 2016 |
| Ardy's Barbershop Ltd | Chichester | 2020 |