| ADR Engineering Solutions Ltd | Slough | 2015 |
| ADR Ltd | Llanrwst | 2026 |
| ADR Market Ltd | London | 2023 |
| ADR Motors Ltd | London | 2024 |
| ADR Motorworks Ltd | Nuneaton | 2024 |
| ADR Performance Centre Ltd | Kidderminster | 2021 |
| ADR Performance Engineering Ltd | Sheringham | 2015 |
| ADR Service & Repairs Limited | Witney | 2005 |
| ADR Stores Ltd | Bradford | 2023 |
| ADR Sustainable Clothing Ltd | High Wycombe | 2024 |
| ADR Trading Limited | Manchester | 2025 |
| ADR UK Tyremart Limited | Newark | 1978 |
| ADR Wheelz Ltd | London | 2025 |
| Adra (Cymru) CYF | Caernarfon | 2007 |
| Adra G&K Ltd | Crewe | 2025 |
| Adra Services Limited | Banstead | 2014 |
| Adra Shop Ltd | Penarth | 2025 |
| Adra Trade Limited | Kington | 2020 |
| Adram Solutions Ltd | Scarborough | 2026 |
| Adramelec Ltd | London | 2024 |
| Adran Maintenance Limited | Hull | 2023 |
| Adray Ltd | Hayes | 2023 |
| Adre Limited | Hengoed | 2026 |
| Adreach Ltd | London | 2024 |
| Adrees & Sons Ltd | Birmingham | 2022 |
| Adrees Manier Ltd | Southampton | 2025 |
| Adremit Limited | Lancs | 2003 |
| Adrenalin 4X4 Limited | Rotherham | 2009 |
| Adrenalin Hub Limited | Wedmore | 2016 |
| Adrenalin Uplift Limited | Innerleithen | 2017 |
| Adrenaline Games Ltd | Leeds | 2023 |
| Adrenaline Junkie Clothing & Supplements Ltd | Coventry | 2018 |
| Adrenaline MX Ltd | Burton-On-Trent | 2018 |
| Adrenaline Proshop Ltd | Cambridge | 2013 |
| Adrenaline PV Ltd | Gravesend | 2023 |
| Adrenaline Rush Competitions Ltd | Winsford | 2023 |
| Adrenalyn Ltd | London | 2024 |
| Adrenia Ltd | London | 2023 |
| Adrernce Limited | London | 2025 |
| Adret Limited | London | 2017 |
| Adrevivex Ltd | London | 2025 |
| Adri Foods Ltd | Southall | 2019 |
| Adri Ventures Limited | Belfast | 2024 |
| Adria Concessionaires Limited | Sudbury | 1988 |
| Adria Foods Ltd | Corby | 2015 |
| Adrian & Co Jewellers Ltd | Cookstown | 2011 |
| Adrian & Maura Mcnally Ltd | Armagh | 2005 |
| Adrian 24/7 Ltd | Grays | 2023 |
| Adrian Alan Limited | Hove | 1974 |
| Adrian Automotive Limited | Smethwick | 2016 |
| Adrian Ayley (UK) Limited | Maldon | 1998 |
| Adrian Bell Golf Limited | Corby | 2009 |
| Adrian Biddell Fine Art Limited | Letchworth | 2017 |
| Adrian Cave Limited | Honiton | 2002 |
| Adrian Digital Ltd | Bromsgrove | 2025 |
| Adrian Edwards Limited | Worcester | 1999 |
| Adrian Eeles Limited | Thatcham | 2011 |
| Adrian Export Services Limited | London | 2024 |
| Adrian Forster Limited | Loughborough | 2003 |
| Adrian Fytche Furniture Sales Limited | Kettering | 2013 |
| Adrian Gorst Services Limited | Louth | 2018 |
| Adrian Grant Commercials Ltd | Crumlin | 2017 |
| Adrian Group of Companies Ltd | Gloucester | 2026 |
| Adrian Harries Ltd | Caerphilly | 2021 |
| Adrian Harrington Limited | West Wickham | 1997 |
| Adrian Hart Cars Limited | Ipswich | 2012 |
| Adrian Harvey Motor Engineers Ltd | Lymington | 2005 |
| Adrian Invest Ltd | West Bromwich | 2024 |
| Adrian Ispas Ltd | Oldham | 2019 |
| Adrian Kostyra Ltd | Corby | 2024 |
| Adrian Kozera Ltd | Leeds | 2019 |
| Adrian Leeson Cars Ltd | Belfast | 2017 |
| Adrian Mecklenburgh Limited | Newton-Le-Willows | 1980 |
| Adrian Mibus Limited | London | 1974 |
| Adrian Morpeth Footwear Limited | Thirsk | 2001 |
| Adrian Motors Ltd | Doncaster | 2026 |
| Adrian Padley Motors Limited | Boston | 2002 |
| Adrian Pearson (Agencies) Ltd | Knaresborough | 2004 |
| Adrian Pollock Cars Ltd | Omagh | 2020 |
| Adrian Sassoon Limited | | 1993 |
| Adrian Thomas Limited | Lampeter | 2003 |
| Adrian Timis Company Ltd | Atherstone | 2025 |
| Adrian Vickerton Limited | Stockport | 2006 |
| Adrian Weiner Transport Ltd | Pontefract | 2015 |
| Adrian White Building Supplies Ltd. | London | 1992 |
| Adrian Wilson Garage Limited | Staffordshire | 2002 |
| Adriana Electronics Ltd | Luton | 2020 |
| Adriana Red Limited | London | 2025 |
| Adrianna Al-Kobecy Limited | Canterbury | 2024 |
| Adrianna Papell UK Limited | London | 2011 |
| Adriano & Marisa Ltd. | Dalkeith | 2004 |
| Adriano Cars Ltd | Peterborough | 2020 |
| Adriano Ltd | Newcastle Upon Tyne | 2011 |
| Adrianpons Limited | Cardiff | 2025 |
| Adrian’S Garage Ltd | Broadstairs | 2025 |
| Adriart Ltd | London | 2024 |
| Adriatic (UK) Ltd | London | 2014 |
| Adriatic Wines Limited | London | 2022 |
| Adriatica Immobiliare Ltd | Cardiff | 2014 |
| Adriel Group Ltd | Hamilton | 2025 |