| ARC Event Management Sussex Limited | Brighton | 2025 |
| ARC Fitness & Wellbeing Ltd | Beverley | 2025 |
| ARC Fitness Club Ltd | Shotts | 2026 |
| ARC Football Limited | Manchester | 2025 |
| ARC Global Limited | Bristol | 2014 |
| ARC Gym Ltd | Wokingham | 2018 |
| ARC Independent CIC | Glasgow | 2017 |
| ARC Input Limited | Bury St Edmunds | 1992 |
| ARC Leisure Ltd | Wokingham | 2019 |
| ARC Padel Limited | Uxbridge | 2025 |
| ARC Project Holdings Limited | London | 2025 |
| ARC Right Pyrotechnics Ltd | Preston | 2024 |
| ARC Sports Ltd | London | 2025 |
| ARC Studio Collective Ltd | London | 2026 |
| ARC Studios Limited | Banbury | 2025 |
| ARC Tennis and Sports Club | Bideford | 2015 |
| ARC Theatre Ensemble - London | London | 1993 |
| ARC Venture I Ltd | London | 2025 |
| ARC Wellness Ltd | London | 2024 |
| Arca (Plymouth) Limited | Plymouth | 2019 |
| Arca Digital Ltd | Mildenhall | 2026 |
| Arca Preservation Ltd | Fakenham | 2022 |
| Arca Studios Ltd | Spalding | 2026 |
| Arcade Arches Ltd | Chandler'S Ford | 2026 |
| Arcade Archive Ltd | Stroud | 2022 |
| Arcade Arena London Limited | London | 2025 |
| Arcade Arts Ltd | Bridlington | 2020 |
| Arcade Club 3 Limited | Blackpool | 2019 |
| Arcade Club Leeds Limited | Leeds | 2017 |
| Arcade Club Ltd. | Bury | 2016 |
| Arcade Club Sales Limited | Bury | 2016 |
| Arcade Fire Touring Limited | London | 2007 |
| Arcade Gallery Limited | Birmingham | 2017 |
| Arcade POP UP Ltd | Royton | 2023 |
| Arcade Project CIC | Southport | 2024 |
| Arcade Studios Ltd | Belfast | 2020 |
| Arcade Talent Agency Ltd | Sheffield | 2018 |
| Arcadia & Ricono Ltd | London | 1997 |
| Arcadia (Ryde) Limited | Wootton Bridge | 1946 |
| Arcadia Activities Limited | Bridgwater | 2018 |
| Arcadia Amusements Ltd | Newcastle | 2016 |
| Arcadia Butterfly Effect Limited | London | 2025 |
| Arcadia Casino Limited | Luton | 2020 |
| Arcadia Games Ltd | London | 2024 |
| Arcadia Gaming Lounges Limited | Redhill | 2025 |
| Arcadia Missa Limited | London | 2010 |
| Arcadia Reach C.I.C. | Bristol | 2017 |
| Arcadia Roller Derby Limited | Stockport | 2022 |
| Arcadian Marinades Ltd | Derby | 2019 |
| Arcadian Opera Limited | Buckingham | 2024 |
| Arcadian Opera Productions Limited | Buckingham | 2022 |
| Arcaine Limited | Stockport | 2022 |
| Arcana House Ltd | Leeds | 2026 |
| Arcana Immersive Ltd | Bristol | 2024 |
| Arcane Arts Limited | London | 2017 |
| Arcane Ecology Ltd. | Scarborough | 2020 |
| Arcangelo | Tenterden | 2010 |
| Arcanum Creative Limited | Glasgow | 2021 |
| Arcava Entertainment Limited | London | 2017 |
| Arcava Music Limited | London | 2017 |
| Arcava Productions Limited | London | 2017 |
| ARCB1 Ltd | London | 2021 |
| Arcche Limited | London | 2024 |
| Arch 1821 Limited | London | 2024 |
| Arch 468 Theatre Studio Ltd | London | 2009 |
| Arch 79 Studio Limited | London | 2019 |
| Arch 9 Ltd | London | 2014 |
| Arch Asset Managment Ltd. | West Malling | 1998 |
| Arch Drive Limited | Greysteel | 2007 |
| Arch Health & Fitness Ltd | Twickenham | 2025 |
| Arch Media Productions Limited | Corby | 2025 |
| Arch Pilates Limited | Rotherham | 2026 |
| Arch Pilates Studio Ltd | Montrose | 2026 |
| Arch Production Services Ltd | Southport | 2025 |
| Arch Side Leisure Limited | Worcester | 2025 |
| Archaea Mass Limited | Luton | 2000 |
| Archaeological Solutions Limited | Stoke-On-Trent | 2003 |
| Archaeotect Limited | Conwy | 2007 |
| Archaic Air International Publishing Ltd | London | 2020 |
| Archalian Ltd | Truro | 2017 |
| Archangel Amateur Boxing Club Ltd | London | 2025 |
| Archangel Events Ltd | Sheffield | 2023 |
| Archer 9 Ltd | Hassocks | 2025 |
| Archer Audio Limited | Richmond | 2022 |
| Archer Incorporated Ltd | Bromsgrove | 2019 |
| Archer Leisure Limited | Epsom | 1982 |
| Archer LX Ltd | London | 2022 |
| Archer Music Limited | London | 2018 |
| Archer Performances Ltd | London | 2021 |
| Archer Presents Ltd | London | 2021 |
| Archer Productions Ltd | London | 2016 |
| Archer Sharp Design Ltd | Bury St Edmunds | 2019 |
| Archer Sports Consultancy Ltd | Solihull | 2022 |
| Archer Story Company Ltd | London | 2026 |
| Archera Limited | Warwick | 2002 |
| Archerfield & Fidra Golf Courses Limited | Edinburgh | 2003 |
| Archers Health Club Limited | Reading | 2000 |
| Archertype Events Limited | Manchester | 2017 |
| Archery (B) Ltd | London | 2023 |
| Archery BE Ltd | London | 2025 |