| ARC Estates & Management Ltd | London | 2023 |
| ARC Film & Media Limited | London | 2012 |
| ARC Films Ltd | London | 2025 |
| ARC Futures Ltd | London | 2026 |
| ARC Global Engineering Limited | Suffolk | 2022 |
| ARC Group International Ltd | Rochdale | 2025 |
| ARC I.T. Solutions Limited | Newcastle Under Lyme | 2003 |
| ARC Images Ltd | Gloucester | 2019 |
| ARC Inc Limited | Twickenham | 2016 |
| ARC Insights Ltd | Rickmansworth | 2008 |
| ARC International Ltd | Leicester | 2023 |
| ARC Internet Limited | Oldham | 2010 |
| ARC IQ Ltd | London | 2026 |
| ARC IT Consultancy Ltd | Swindon | 2016 |
| ARC IT Solutions Group Limited | Newcastle Under Lyme | 2023 |
| ARC Labs Limited | Bath | 2025 |
| ARC Lamp Software Limited | Bristol | 2015 |
| ARC Lane Pictures Ltd | London | 2025 |
| ARC Litigation Consulting and Research Services Limited | London | 2022 |
| ARC Management Ltd | Borough | 1983 |
| ARC Management Systems Consulting Limited | Bury St. Edmunds | 2026 |
| ARC Media (Midlands) Limited | Stourbridge | 2012 |
| ARC Media Productions Ltd | Horsham | 2020 |
| ARC Medtech Limited | Stockton On Tees | 2019 |
| ARC Mind Ltd | Enfield | 2025 |
| ARC Music Productions International Limited | East Grinstead | 1987 |
| ARC NET Scotland Ltd | Edinburgh | 2015 |
| ARC Network Productions Ltd | Dartford | 2023 |
| ARC Networks Solutions Ltd | Westcliff-On-Sea | 2025 |
| ARC of London Ltd | Tring | 2024 |
| ARC Online Services Limited | Bishop'S Stortford | 2022 |
| ARC Pathway Limited | London | 2018 |
| ARC Payments Limited | Farnham | 2025 |
| ARC Phoenix Ltd | Farnborough | 2020 |
| ARC Post Ltd | London | 2014 |
| ARC Production Services Ltd | Taunton | 2015 |
| ARC Productions Limited | Hatfield | 2010 |
| ARC Publications Limited | Todmordon | 2005 |
| ARC Publishing Ltd | Lytham St. Annes | 2024 |
| ARC Records Limited | Huddersfield | 2025 |
| ARC Retail Technology Limited | Chesterfield | 2026 |
| ARC Root Consulting Ltd | Buckinghamshire | 2014 |
| ARC Services (UK) Ltd | Finchampstead | 2003 |
| ARC Simulations Ltd | London | 2022 |
| ARC Software Consultancy Limited | Surbiton | 1990 |
| ARC Software Ltd | Waterlooville | 2024 |
| ARC Software Solutions Ltd | Feltham | 2013 |
| ARC Solutions Ltd | Ashby-De-La-Zouch | 2019 |
| ARC Solutions PVT Ltd | Aylesbury | 2012 |
| ARC Solutions Scotland Limited | Hamilton | 2017 |
| ARC Sound Limited | Nottingham | 2008 |
| ARC Studio Pro Ltd | London | 2015 |
| ARC Studio Works Ltd | Harrow | 2024 |
| ARC Studios Group Ltd | London | 2026 |
| ARC Sync Ltd | Exeter | 2026 |
| ARC Talent Solutions Ltd | Bristol | 2025 |
| ARC Tech Consultancy Limited | Leicester | 2016 |
| ARC Tech Consulting Ltd | London | 2025 |
| ARC Technology Limited | Manchester | 1990 |
| ARC Telecom Ltd | London | 2015 |
| ARC UK Consulting Limited | Saffron Walden | 2024 |
| ARC Vision Monitoring Limited | Manchester | 2024 |
| ARC Web Limited | Greenford | 2000 |
| ARC Websites Ltd | London | 2024 |
| ARC X-Media Limited | London | 2015 |
| Arc-Hub Ltd | Kettering | 2020 |
| Arc-It Consulting Limited | Burgess Hill | 2021 |
| Arc-Pay Ltd | Oldham | 2019 |
| ARC2D2 Ltd | London | 2025 |
| ARC53 Ltd | Edinburgh | 2019 |
| ARC666 Ltd | Halifax | 2026 |
| Arca Consulting Ltd | Bristol | 2020 |
| Arca CTR Ltd | London | 2025 |
| Arca Innovations Ltd | Aylesbury | 2026 |
| Arca Labs Ltd | Milton Keynes | 2026 |
| Arca Solving Ltd | London | 2023 |
| Arca Technologies Limited | London | 2026 |
| Arca Veritas Ltd | London | 2026 |
| Arcade Advisory Ltd. | London | 2012 |
| Arcade Badgers Limited | Dundee | 2013 |
| Arcade Consulting Ltd | Leighton Buzzard | 1999 |
| Arcade Data Ltd | London | 2017 |
| Arcade Films London Ltd | London | 2018 |
| Arcade Interactive Ltd | London | 2023 |
| Arcade Joyride Ltd | Thornton-Cleveleys | 2023 |
| Arcade Labs Ltd | London | 2023 |
| Arcade Ltd | London | 2016 |
| Arcade Publishers Ltd | Cardiff | 2025 |
| Arcade Sports Group Limited | Twickenham | 2024 |
| Arcade Strange Limited | Bristol | 2023 |
| Arcade Strategies Limited | Huddersfield | 2017 |
| Arcade Tech Solutions Limited | London | 2026 |
| Arcadegeek Ltd | Stanmore | 2011 |
| Arcadeimage Limited | Stevenage | 2023 |
| Arcadelift Limited | London | 2025 |
| Arcademic Ltd | London | 2018 |
| Arcadeus Ltd | London | 2025 |
| Arcadia Cloud Ltd | Huntingdon | 2019 |
| Arcadia Digital Ltd | Leatherhead | 2025 |
| Arcadia Entertainment Ltd | London | 2024 |