| Adra Support Services Ltd | New Malden | 2023 |
| Adrad Facilities Limited | Sheffield | 2019 |
| Adrad Limited | Sheffield | 2015 |
| Adrant Chemicals Trading Limited | London | 2001 |
| Adrax Ltd | Stoke On Trent | 2025 |
| Adrc Consultants Ltd | Swindon | 2024 |
| Adrel Holdings Limited | Dundee | 2005 |
| Adrem Industrial Maintenance and Cleaning Limited | Ramsgate | 1971 |
| Adrenal Security Services Ltd | Stockport | 2026 |
| Adrenaline Management Ltd | St. Asaph | 2016 |
| Adrenaline Marketing Fuel Ltd | Cobham | 2019 |
| Adrenaline Media Limited | London | 2000 |
| Adrenaline Rush Aviation Limited | Queenborough | 2026 |
| Adrent Tree Surgery Ltd | Chessington | 2025 |
| Adria Blue Ltd | London | 2022 |
| Adria Facilities Management Ltd | London | 2019 |
| Adria Sports Ltd | Colindale | 2016 |
| Adriadventures Ltd | Skipton | 2019 |
| Adrian 85 Ltd | Grays | 2017 |
| Adrian Back Editorial Limited | Wimborne | 2020 |
| Adrian Brown Building Services Ltd | Lincoln | 2003 |
| Adrian Cameron Limited | Cheadle | 2006 |
| Adrian Clarke Photography Ltd | Sevenoaks | 2017 |
| Adrian Cleaning and Shine Ltd | Leeds | 2022 |
| Adrian Cleaning Service Ltd | Barking | 2025 |
| Adrian Fisher Associates Limited | Coulsdon | 2021 |
| Adrian Fisher Ltd | Coulsdon | 2009 |
| Adrian Francis (Holdings) Limited | Manchester | 2008 |
| Adrian Francisco Sanchez Ferrandez Ltd | Liverpool | 2025 |
| Adrian George Ltd | Llandrindod Wells | 2024 |
| Adrian Hague Ltd | Ilford | 2024 |
| Adrian Kapuscinski Limited | Ilford | 2014 |
| Adrian Koba Limited | Stevenage | 2016 |
| Adrian Landscaping & Property Services Ltd | Wokingham | 2026 |
| Adrian London Landscaping Ltd | Chesterfield | 2025 |
| Adrian Lower & Associates Ltd | London | 2017 |
| Adrian M.G. Ltd | Huntingdon | 2019 |
| Adrian Male Associates Limited | Crewkerne | 2008 |
| Adrian Marciante Limited | Brighton | 2008 |
| Adrian Mcclelland Limited | Kidlington | 2016 |
| Adrian Nebunu Ltd | Ipswich | 2017 |
| Adrian Nita Limited | Wokingham | 2022 |
| Adrian Oliver & Co Limited | Worthing | 2000 |
| Adrian Osbourn Consulting Limited | Cirencester | 2022 |
| Adrian Payne Chimney Sweep Limited | Crediton | 2011 |
| Adrian Peck Limited | Ipswich | 2024 |
| Adrian Perks Limited | Orpington | 2016 |
| Adrian Ramgobin Ltd | London | 2023 |
| Adrian Raymond Limited | Radstock | 1987 |
| Adrian Rotaru Ltd | Doncaster | 2016 |
| Adrian Wright Studio Ltd | London | 2019 |
| Adrian Young Limited | Leicestershire | 2007 |
| Adriana Boffa - Tour Guide Ltd | Edinburgh | 2026 |
| Adriana Pro Cleaning Ltd | Croydon | 2025 |
| Adrianna Sosnowska Consulting Ltd | Aberdeen | 2022 |
| Adriano Car Wash Limited | Rotherham | 2023 |
| Adrians Cleaning Services Limited | Hailsham | 2013 |
| Adrians Window Cleaning Services Limited | Liverpool | 2018 |
| Adrianvoinea Limited | Coventry | 2016 |
| Adriatic Adventures Ltd | Southsea | 2024 |
| Adriatik HCW Ltd | Woodford Green | 2017 |
| Adriel Care Limited | Poole | 2010 |
| Adriel Davis Ltd | London | 2025 |
| Adriel Limited | Royal Victoria Docks | 2008 |
| Adroc Limited | Bristol | 2011 |
| Adroit Jobs Limited | London | 2013 |
| Adroit Management Consultancy Ltd | London | 2015 |
| Adroit Plant Limited | Telford | 2015 |
| Adroit Security Ltd | London | 2025 |
| Adroit Staffing Limited | Witney | 2023 |
| Adronis Group Ltd | London | 2025 |
| Adrox Consulting Ltd. | Manchester | 2020 |
| Adrremus Transport Ltd | Bracknell | 2018 |
| Adry & ANA Cleaning Ltd | Watford | 2023 |
| ADS (NW) Ltd | Kington | 2021 |
| ADS 5 Property Rental Ltd | Sidcup | 2024 |
| ADS Actuarial Limited | Reading | 2015 |
| ADS Alphadoc Solutions Limited | Carmarthenshire | 2003 |
| ADS Cleaning & Restoration Ltd | Southsea | 2026 |
| ADS Cleaning Services Limited | Denny | 2025 |
| ADS Construction Consultancy Services Limited | Newport Pagnell | 2021 |
| ADS Developments Ltd | Epsom | 2017 |
| ADS E Cleaning Solution Ltd | Hayes | 2026 |
| ADS Employment Services Ltd | London | 2025 |
| ADS Equipment Hire Limited | Newton Abbot | 2016 |
| ADS Finance Ltd | Rugby | 2020 |
| ADS Fire & Security Ltd | Chester | 2020 |
| ADS Furnishings Ltd | Bexley | 2007 |
| ADS Garden Services (SW) Limited | Brixham | 2023 |
| ADS Gardens (Sussex) Ltd. | Horsham | 2017 |
| ADS Grow Business Ltd | Bramhall | 2019 |
| ADS Independent Living Solutions Limited | Watford | 2015 |
| ADS Recruitment Limited | Southampton | 1999 |
| ADS Recruitment Services Limited | Southampton | 2026 |
| ADS Subsea Limited | Buckie | 2013 |
| ADS Support Limited | Barnet | 2016 |
| ADS Training Solutions Ltd | Wells | 2025 |
| ADS Water Services Limited | Westbury | 2018 |
| ADS Window Films Limited | Plymouth | 2002 |
| Ads-Mbo Ltd | Blackpool | 2025 |