| Abelote | Wigan | 2024 |
| Abels Chesney Ltd | Norwich | 2020 |
| Abels International Moving Services Limited | Potters Bar | 2007 |
| Abels Surveyors Ltd | Stroud | 1999 |
| Abels UK Moving Services Limited | Potters Bar | 2007 |
| Abelscroft Consulting Limited | London | 2024 |
| Abelson Associates Limited | Manchester | 2019 |
| Abeltek Ltd | Kirkcaldy | 2026 |
| Abema Advisory and Consulting Ltd | London Colney | 2024 |
| Aben Interiors & Projects Limited | Derby | 2021 |
| Abendsons Ltd | Harlow | 2014 |
| Abeni Ltd | Bangor | 2003 |
| Abeni Solutions Ltd | London | 2021 |
| Abensour & Partners Limited | London | 2002 |
| Abenzy Education Limited | Salford | 2025 |
| Abeo Limited | Scarborough | 2006 |
| Abeo Verto Limited | Solihull | 2010 |
| Aber Accounting Services Limited | Leicester | 2015 |
| Aber Advisory Ltd | London | 2025 |
| Aber Animal Clinic Limited | Westcliff-On-Sea | 2011 |
| Aber Business Consultancy Ltd | Aberystwyth | 2012 |
| Aber Consultancy Services Ltd | Guildford | 2020 |
| Aber Consulting Limited | Tonbridge | 2014 |
| Aber Shock and Detonation Research Limited | Ceredigion | 2006 |
| Aberavon Accounting Ltd | | 2004 |
| Aberavon Company Services Ltd | Port Talbot | 2025 |
| Aberavon Lawyers Limited | | 2005 |
| Abercalwat Consulting Limited | Aberdeen | 2024 |
| Abercastle Investments Limited | Edinburgh | 1985 |
| Aberclay Limited | Oxford | 2015 |
| Abercon IT Limited | Dundee | 2013 |
| Aberconway Consulting Limited | Llandudno | 2018 |
| Abercorn Design Studio Ltd | Harrow | 2011 |
| Abercorn Environmental Ltd. | Barnstaple | 2005 |
| Abercorn Finance Ltd | Hillsborough | 2024 |
| Abercorn Law Ltd | London | 2022 |
| Abercorn Legal Services Limited | Brecon | 2014 |
| Abercorn Limited | London | 2008 |
| Abercorn Partners Limited | London | 2023 |
| Abercorn Surveyors Ltd. | Barnstaple | 2005 |
| Abercorn Ventures Limited | Newcastle Upon Tyne | 2024 |
| Abercrombie & Kent Philanthropy | Cheltenham | 2011 |
| Abercrombie Business Consulting Ltd | Leeds | 2019 |
| Abercrombie Construction Safety Ltd | Deal | 2010 |
| Abercrombie Design Ltd | Glasgow | 2021 |
| Abercrombie Partners Ltd | Peterborough | 2013 |
| Abercrombie Safety Engineering Limited | Plymouth | 2002 |
| Abercromby Power Limited | Edinburgh | 2015 |
| Abercromby Project Finance Limited | Edinburgh | 2011 |
| Abercus Limited | Aberdeen | 2010 |
| Aberdare Accountancy Services Limited | Aberdare | 2019 |
| Aberdare Advisors Limited | Kington | 2025 |
| Aberdare Associates Ltd | London | 2024 |
| Aberdare Cables | Eastleigh | 1950 |
| Aberdare Investments Limited | London | 2008 |
| Aberdare-Mowbray Consultants Ltd | Jarrow | 2024 |
| Aberdee Limited | Burntisland | 2025 |
| Aberdeen Accountants Limited | Aberdeen | 2017 |
| Aberdeen Advisors Limited | London | 2024 |
| Aberdeen AI Engineering Ltd | Aberdeen | 2025 |
| Aberdeen Air Ltd | Banchory | 2009 |
| Aberdeen Alarm Company Limited | Aberdeen | 2007 |
| Aberdeen Business Coaching Ltd | Peterculter | 2018 |
| Aberdeen Cancer Care Limited | Aberdeen | 2015 |
| Aberdeen City Heritage Trust | Aberdeen | 2004 |
| Aberdeen Commercial Energy Solutions Ltd | Aberdeen | 2014 |
| Aberdeen Compass Adjusting Ltd | Aberdeen | 2013 |
| Aberdeen Crushing Ltd | Inverurie | 2013 |
| Aberdeen Design Limited | Aberdeen | 2001 |
| Aberdeen Energy Ventures Ltd | Westhill | 2025 |
| Aberdeen Engineering Solutions Ltd | Liverpool | 2013 |
| Aberdeen Environmental Management Ltd | Aberdeen | 2010 |
| Aberdeen Environmental Services (Holdings) Limited | Glasgow | 2000 |
| Aberdeen Fire Consultancy Ltd | Mastrick | 2021 |
| Aberdeen Foam Limited | Liverpool | 2002 |
| Aberdeen Garden Services Limited | Edinburgh | 2023 |
| Aberdeen Group PLC | Edinburgh | 2005 |
| Aberdeen Industries Limited | Glasgow | 1985 |
| Aberdeen Industry Investments Limited | West Yorkshire | 2013 |
| Aberdeen Inshore Engineering Limited | Aberdeen | 1965 |
| Aberdeen International Associates Limited | Aberdeen | 2016 |
| Aberdeen Internet Services Limited | Witham | 1995 |
| Aberdeen Land Investments Ltd | Barnet | 2011 |
| Aberdeen Limited | London | 2015 |
| Aberdeen Marine Ltd | Kilmarnock | 2016 |
| Aberdeen Marine Safety Ltd | Aberdeen | 2017 |
| Aberdeen Marine Surveyors Ltd | Aberdeen | 2021 |
| Aberdeen MCK Ltd | London | 2025 |
| Aberdeen Metallurgical Services Limited | | 2005 |
| Aberdeen MOT Cover Limited | Aberdeen | 2016 |
| Aberdeen Motor Trawlers Limited | Aberdeen | 1955 |
| Aberdeen Near Water Trawlers Limited | Aberdeen | 1958 |
| Aberdeen North VETS4PETS Limited | Handforth | 2017 |
| Aberdeen One Energy Limited | Bournemouth | 2024 |
| Aberdeen Orthopaedic Developments Limited | Aberdeen | 2001 |
| Aberdeen Payroll & Pensions Limited | Aberdeen | 2014 |
| Aberdeen Pdms Projects Ltd. | Aberdeen | 2007 |
| Aberdeen Photobooth Ltd | Inverurie | 2022 |
| Aberdeen Property Management Limited | Aberdeen | 2020 |
| Aberdeen Scaffolding Limited | Westhill | 2009 |