| Arbrix Conferences Limited | Ascot | 1999 |
| Arbroath Barbers Ltd | Arbroath | 2023 |
| Arbroath Nail&Spa Ltd | Arbroath | 2021 |
| Arbroath Nails & Spa Limited | Arbroath | 2026 |
| Arbscape Home & Garden Ltd | Newcastle Upon Tyne | 2022 |
| Arbtech.Io Limited | London | 2022 |
| Arbury Hill Limited | Corby | 2021 |
| Arbworx Limited | Brighton | 2008 |
| Arby O365 Ltd | London | 2017 |
| Arb’S Barber Shop Ltd | Cheltenham | 2023 |
| ARC (Axminster) Limited | Axminster | 2006 |
| ARC Appliance Care Ltd | Manchester | 2018 |
| ARC Cleaning Limited | Bexley | 2017 |
| ARC Cosmetic Clinic Ltd | Oldbury | 2021 |
| ARC Couriers Limited | Chatham | 2015 |
| ARC Development Group Limited | Malvern | 2021 |
| ARC Fine Arts Ltd | London | 2026 |
| ARC Fire Training Services Ltd | Wirral | 2010 |
| ARC Fitness Ltd | Londonderry | 2019 |
| ARC Fitness Zone Ltd | Lymm | 2022 |
| ARC Hairdresser Ltd | London | 2020 |
| ARC Hairdressing Limited | Hampshire | 2002 |
| ARC Holdings Kent Ltd | Maidstone | 2024 |
| ARC Interior Supply Ltd | London | 2012 |
| ARC Interiors Ltd | Norley | 2023 |
| ARC Labour Solutions Ltd | Pontypridd | 2017 |
| ARC Locksmiths Ltd | Stevenage | 2013 |
| ARC Marquees Limited | Perth | 2005 |
| ARC Media Group Limited | Lancaster | 2025 |
| ARC North Limited | Hexham | 2012 |
| ARC Performance Limited | Stockport | 2025 |
| ARC Projects (Maintenance) Limited | Hartley Wintney, Hook | 2007 |
| ARC Recruitment (Yorkshire) Limited | Halifax | 2004 |
| ARC Renewable Energy Limited | London | 2015 |
| ARC Skin Clinic Ltd | London | 2023 |
| ARC Skin Ltd | London | 2025 |
| ARC Slinw Little Hulton GP Holdco Limited | London | 2019 |
| ARC Slinw Little Hulton Limited | London | 2019 |
| ARC Stage Hire Limited | Altrincham | 2018 |
| ARC Support Solutions Ltd | London | 2021 |
| ARC Systems Limited | London | 2018 |
| ARC THY Bodii Aesthetics & Training Academy Ltd | Kilmarnock | 2026 |
| ARC Wellness Group Ltd | Brierley Hill | 2026 |
| ARC365 Limited | London | 2026 |
| Arca Beheer Limited | Hythe | 2025 |
| Arca Dog Walking and Pet Care Ltd | Bristol | 2019 |
| Arca Investment Consultancy Ltd | Birmingham | 2022 |
| Arca Packaging Limited | Leigh-On-Sea | 2010 |
| Arca Physiotherapy & Training Ltd | Cradley Heath | 2021 |
| Arcachon Limited | Leigh-On-Sea | 1998 |
| Arcade Arena Manchester Limited | London | 2020 |
| Arcade Associates Limited | St. Albans | 1997 |
| Arcade Eight Piercing Limited | Newport Pagnell | 2022 |
| Arcade Hair Salon Ltd | Croydon | 2020 |
| Arcade JAM Ltd | Cardiff | 2024 |
| Arcade Media Ltd | Worthing | 2021 |
| Arcadewatchrepairs Ltd | London | 2024 |
| Arcadia 99 Limited | London | 1986 |
| Arcadia Agri Limited | London | 2017 |
| Arcadia Corporate Services Ltd | Windsor | 2014 |
| Arcadia Custom Installation Limited | London | 2018 |
| Arcadia Dog Services Ltd | London | 2025 |
| Arcadia Garden Services Limited | Long Ashton | 2008 |
| Arcadia Gloabl Ltd | Birmingham | 2024 |
| Arcadia Glow Ltd | Manchester | 2025 |
| Arcadia House Estates Ltd | Salford | 2017 |
| Arcadia House Investments Ltd | Salford | 2017 |
| Arcadia House X Ltd | Salford | 2017 |
| Arcadia Investments Limited | London | 2015 |
| Arcadia Kitchens & Bathrooms Ltd | Birmingham | 2016 |
| Arcadia Services Ltd | Ilford | 2025 |
| Arcadia Signs Ltd | Nottingham | 2021 |
| Arcadia Spa Limited | London | 2022 |
| Arcadia Tattoo Ltd | London | 2023 |
| Arcadian Development Residential Limited | Wolverhampton | 2017 |
| Arcadian Security Ltd | Middlesbrough | 2017 |
| Arcal Construction Ltd | London | 2017 |
| Arcana (Winchester) Limited | Winchester | 2005 |
| Arcana 7 Ltd | Hamilton | 2019 |
| Arcana Center Corp Ltd | Kent, Folkestone | 2017 |
| Arcana Holistic Skin Treatments Ltd | Poole | 2022 |
| Arcana Limited | Winchester | 1992 |
| Arcana MK Ltd | Milton Keynes | 2017 |
| Arcana Romsey Limited | Winchester | 2025 |
| Arcana Studio Ltd | London | 2026 |
| Arcane Consultancy Ltd | Warrington | 2019 |
| Arcane Group Ltd | Pinner | 2020 |
| Arcane Worlds Limited | London | 2021 |
| Arcaneaurora Limited | London | 2024 |
| ARCANGEL888 Ltd | Littlehampton | 2025 |
| Arcarpentry SW Ltd | Yeovil | 2014 |
| Arcbright Ltd | Gillingham | 2023 |
| Arcc Holdings Ltd | London | 2016 |
| Arcc Project Consultancy Limited | Cheltenham | 2026 |
| Arcd Architects Ltd | Manchester | 2020 |
| Arceus Associates Ltd | London | 2023 |
| Arcexi Ltd | Gloucester | 2022 |
| Arch & Artistry Limited | Billingham | 2025 |
| Arch & Bark Ltd | Salford | 2026 |
| Arch & Locks Ltd | Harrow | 2024 |