| AD42 Limited | Altrincham | 2015 |
| AD4ENERGY Limited | Birmingham | 2014 |
| AD61 Limited | London | 2019 |
| ADA & Co Legal Ltd | Sheffield | 2022 |
| ADA (Glossop) Limited | 31 King Street West | 2003 |
| ADA Advisory Ltd | South Croydon | 2023 |
| ADA Car Consultancy Limited | Waltham Cross | 2021 |
| ADA Cleaning Ltd | Edgware | 2026 |
| ADA Cleaning Solutions Ltd | Wellingborough | 2025 |
| ADA Consultancy Limited | Watford | 2015 |
| ADA Design Ltd | Nottingham | 2017 |
| ADA Events Ltd | Ormskirk | 2025 |
| ADA FX Ltd | Leigh-On-Sea | 2017 |
| ADA Meher Ltd | Leeds | 2025 |
| ADA Onsite Ltd | Inverness | 2013 |
| Adaa Boutique Ltd | Birmingham | 2017 |
| Adab Solutions Ltd | London | 2023 |
| Adac Global Holdings Ltd | Ealing | 2025 |
| Adact Primary Authority Partnership Ltd | Doncaster | 2018 |
| Adaever Limited | Wolverhampton | 2016 |
| Adagio Hush Ltd | London | 2025 |
| Adair Leadership Ltd | Godalming | 2021 |
| Adair Support Limited | Croydon | 2022 |
| Adakoy Consulting Limited | Cowrbidge | 2024 |
| Adal Global Cars Limited | Hayes | 2025 |
| Adal Studio Ltd | Newbury | 2026 |
| Adalent Ltd | London | 2022 |
| Adalgo Limited | Enfield | 2008 |
| Adali Cleaning Services Limited | Swanley Village | 2019 |
| Adalia Lagos UK Ltd | Grays | 2025 |
| Adaline Recruitment Limited | Bromley | 2022 |
| Adalta Solutions Limited | Cheadle Hulme | 2009 |
| Adalya Group Ltd | Maidstone | 2025 |
| Adam & EVE Property Solutions Ltd | London | 2025 |
| Adam & EVE Spa Limited | Bewdley | 2010 |
| Adam & J Limited | Bolton | 2021 |
| Adam & Nigel Limited | London | 2018 |
| Adam & Rahman Legal Services Limited | Sutton Coldfield | 2017 |
| Adam & Rebecca Ltd | Bristol | 2024 |
| Adam (Bearsden) Limited | Paisley | 2018 |
| Adam ALI Iqbal Ltd | Stockton-On-Tees | 2023 |
| Adam and EVE Property Care Chippenham Ltd | Chippenham | 2020 |
| Adam Appointments Limited | Dalkeith | 2002 |
| Adam Auto Splash Ltd | Edinburgh | 2024 |
| Adam Barbers 1 Ltd | Leigh | 2024 |
| Adam Bartlett Window Cleaning Ltd | Walsall | 2021 |
| Adam Bednarz Ltd | Edinburgh | 2016 |
| Adam Billig Property Ltd | Bromsgrove | 2013 |
| Adam Birtle Props Ltd | Middlewich | 2023 |
| Adam Biss Sourcing Ltd | Freshwater | 2025 |
| Adam Bokey Ltd | London | 2007 |
| Adam Bradstock Design and Build Limited | East Grinstead | 2015 |
| Adam Brinkley Carpentry Limited | Colchester | 2007 |
| Adam Burden Carpentry Limited | Weymouth | 2017 |
| Adam Business Support Services Limited | Bradford | 2013 |
| Adam Butler Limited | Liverpool | 2006 |
| Adam Car Wash and Valeting Ltd | Staines-Upon-Thames | 2025 |
| Adam Christopher John Selley Limited | Kingston Upon Hull | 2023 |
| Adam Clarke Fencing Ltd | Eastleigh | 2021 |
| Adam Clark’S Garden Maintenance Ltd | Ascot | 2019 |
| Adam Claxton Vehicle Mechanic Limited | Aylsham | 2016 |
| Adam Cleaning Service Limited | Coventry | 2025 |
| Adam Crowe Window Cleaning Ltd | Dunoon | 2025 |
| Adam Curley Ltd. | Havant | 2011 |
| Adam Czaplinski Security Limited | Peterborough | 2023 |
| Adam David Owens Wealth Management Limited | Sheffield | 2017 |
| Adam Dunn Ltd. | Alnwick | 2012 |
| Adam East Ltd | Nottingham | 2017 |
| Adam Executive Cars Limited | Solihull | 2018 |
| Adam Farley Ltd | Plymouth | 2019 |
| Adam Fletcher Associates Limited | Droitwich | 2001 |
| Adam Frampton Plant Hire Limited | Newport | 2003 |
| Adam Frost Design Limited | Lincs | 2005 |
| Adam Gahlin Fine Art Limited | London | 2007 |
| Adam Gault Photography Limited | London | 2008 |
| Adam Geoffrey Management Limited | Manchester | 1994 |
| Adam Gibson Treecare Specialist Limited | Southampton | 2017 |
| Adam Gill | Whitehaven | 2011 |
| Adam Global Network Limited | Billericay | 2026 |
| Adam Grange Landscapes Ltd | Harrogate | 2023 |
| Adam Gray Projects Ltd | Exeter | 2013 |
| Adam Green Limited | Worcester Park | 2017 |
| Adam Hand Car Valeting Ltd | Southampton | 2024 |
| Adam Hayes Electrical Limited | Worthing | 2010 |
| Adam Herrington Property Developments Ltd | York | 2025 |
| Adam Hewitson Hair Ltd | Glasgow | 2017 |
| Adam Hindle Limited | London | 2017 |
| Adam Holding Union Ltd | Oldham | 2025 |
| Adam Hoyle Associates Limited | Harlech | 2016 |
| Adam Hughes Limited | Walthamstow | 2015 |
| Adam Hunt Contracting Limited | Ashton-Under-Lyne | 2022 |
| Adam Hussain Limited | Bradford | 2019 |
| Adam Hutchins Limited | Milton Keynes | 2006 |
| Adam Investments London Limited | Nottingham | 2010 |
| Adam Jackson Lettings Support Ltd | Consett | 2026 |
| Adam Jake Associates Ltd | Nottingham | 2004 |
| Adam James Associates Limited | Colne | 2016 |
| Adam James Dean Ltd | Newcastle Upon Tyne | 2019 |
| Adam Jenkins Design Ltd | Bury St. Edmunds | 2018 |
| Adam Jobs Ltd | London | 2023 |