| Abros Ltd | Surrey | 2001 |
| Abrras Training Limited | Brechin | 2023 |
| Abrs Consultancy Limited | Woking | 2016 |
| Abry Consulting Limited | Warrington | 2014 |
| Abry Star Industries Ltd | London | 2025 |
| Abryx Consultancy Ltd | London | 2025 |
| ABS & Co Accountants Ltd | Liverpool | 2025 |
| ABS (Nationwide) Limited | Leominster | 2008 |
| ABS - Allstar Business Solutions Limited | London | 2025 |
| ABS Accountancy Ltd | Buxton | 2015 |
| ABS Accountancy Services Ltd | Harrow | 2025 |
| ABS Accountants ( Bangor ) Ltd | Bangor | 2013 |
| ABS Accountants Ltd | Bangor | 2010 |
| ABS Accounting Ltd | London | 2025 |
| ABS Advisors Limited | Romford | 2015 |
| ABS Associates Limited | Stanmore | 2013 |
| ABS Business Services Limited | Stourbridge | 2002 |
| ABS Commercial Catering Engineers Limited | London | 2025 |
| ABS Commercial Solutions Limited | Chorley | 2014 |
| ABS Construction Claims Limited | Denmead | 2016 |
| ABS Consultants Ltd | Chinnor | 2019 |
| ABS Consulting Ltd. | Warrington | 1987 |
| ABS Consulting Partners Limited | London | 2026 |
| ABS Designs Consulting Ltd | Sutton Coldfield | 2022 |
| ABS Europe Ltd. | London | 1990 |
| ABS Fashion Club Limited | Glasgow | 2022 |
| ABS Group Events Limited | London | 2023 |
| ABS Group Ltd. | Warrington | 1990 |
| ABS Heating Services Limited | Gloucester | 2017 |
| ABS Henn Ltd | Wolverhampton | 2020 |
| ABS Holding Group Ltd | Preston | 2017 |
| ABS Insight Limited | Ilkley | 2020 |
| ABS IT Ltd | Chester | 2019 |
| ABS Laboratories Holdings Limited | York | 2020 |
| ABS Laboratories Limited | York | 2020 |
| ABS Lawyers Limited | Borehamwood | 2016 |
| ABS Legal Limited | High Wycombe | 2020 |
| ABS Liverpool Ltd | Livepool | 2024 |
| ABS Management Consultancy Ltd | Manchester | 2017 |
| ABS Manor Ltd | Barnet | 2025 |
| ABS Marine Services Ltd. | London | 1990 |
| ABS Network Solutions Ltd | Chorley | 2020 |
| ABS Optics Limited | Batley | 2023 |
| ABS Payroll Ltd | Manchester | 2019 |
| ABS QE Assurance Services (UK) Ltd | Warrington | 2021 |
| ABS Service Accountancy & Bookkeeping Ltd | Newcastle Upon Tyne | 2015 |
| ABS Service Link Limited | London | 2022 |
| ABS Solicitors Group Ltd | Braintree | 2025 |
| ABS Wholesale Limited | Ringwood | 1995 |
| Absaar Consulting Ltd | Spalding | 2021 |
| Absaara Ltd | Solihull | 2008 |
| Absabe Group Limited | London | 2021 |
| Absalg Limited | Belfast | 2022 |
| Absalom Brand Consultancy Ltd | Henley-In-Arden | 2025 |
| Absarb Securities Ltd | Liverpool | 2017 |
| Absaro | Wigan | 2025 |
| Absc Limited | Andover | 2015 |
| Abscapco (UK) Limited | London | 2019 |
| Absco Consulting Ltd | London | 2012 |
| Absd Ltd | London | 2014 |
| Abseil Ltd | Edinburgh | 2022 |
| Abseilute Inspection Solutions Ltd | Beccles | 2014 |
| Abseilution Safety and Rescue Ltd | London | 2026 |
| Absence Cover Ltd | London | 2019 |
| Absentia (1962) Ltd | Hemel Hempstead | 2013 |
| Absentia Accounting Ltd | Bristol | 2019 |
| Absg Finance Limited | Stockport | 2022 |
| Abshire Solutions Limited | Coventry | 2018 |
| Abshot Housing Solutions Ltd | Fareham | 2024 |
| Absire Studio Ltd | Cardiff | 2019 |
| Absk Ltd | Leicester | 2026 |
| Absn Holdings Limited | Newark | 2008 |
| Absol Park Limited | Dunmow | 2009 |
| Absolar Solutions Ltd | Southampton | 2019 |
| Absolem Retail Ltd | Hindhead | 2017 |
| Absolu Limited | Tonbridge | 2016 |
| Absolut HR Ltd | Northampton | 2018 |
| Absolutdata Ltd | Romford | 2014 |
| Absolute 2 Design Consultants Limited | Skipton | 2016 |
| Absolute Accident Management Limited | Southport | 2008 |
| Absolute Accountancy Ltd | Brentwood | 2024 |
| Absolute Accountancy Services Limited | Swansea | 2017 |
| Absolute Accountancy Solutions Ltd | Belvedere | 2021 |
| Absolute Accountants Limited | Hatfield | 2014 |
| Absolute Accountants London Ltd | London | 2025 |
| Absolute Accountax Ltd. | Basingstoke | 2015 |
| Absolute Accounting Limited | Ashford | 2015 |
| Absolute Accounts Limited | Dunblane | 2024 |
| Absolute Advantage Consulting Limited | Greater London | 2017 |
| Absolute Aerospace Consultancy Ltd | Cheltenham | 2011 |
| Absolute Allied Consultancy Ltd | Purley | 2024 |
| Absolute Apex Limited | Knutsford | 1996 |
| Absolute Arabic Ltd | Brighton | 2023 |
| Absolute Architecture Limited | Alcester | 2009 |
| Absolute Artworking Limited | London | 2010 |
| Absolute Asset Management Limited | Glasgow | 2008 |
| Absolute Associates Consulting Ltd | Weymouth | 2013 |
| Absolute Bathroom Interiors Limited | Potters Bar | 2021 |
| Absolute Bookkeeping Ltd | Hastings | 2009 |
| Absolute Books Limited | Southall | 2009 |