| ABC Management Consulting Limited | Bath | 2014 |
| ABC Management Consultors Limited | Glasgow | 2020 |
| ABC Marketing (UK) Limited | Bedfordshire | 2000 |
| ABC Mechanics Ltd | Barnsley | 2026 |
| ABC Media Marketing Ltd | Telford | 2021 |
| ABC Media Standard Ltd. | Kington | 2025 |
| ABC Music Holdings Limited | Hersham | 2016 |
| ABC NDT Ltd | Burntisland | 2025 |
| ABC North East Limited | Durham | 2009 |
| ABC North West Limited | Lancashire | 2007 |
| ABC Office Limited | Inverness | 1992 |
| ABC Paraplanning Limited | Nottingham | 2020 |
| ABC Parker Engineering Limited | Cheshire | 2017 |
| ABC Plumbing & Heating (Herts) Limited | Stoke-On-Trent | 2026 |
| ABC Porada Accountancy & Translation Services Ltd | Slough | 2012 |
| ABC Power Limited | Stafford | 2020 |
| ABC Prime Limited | London | 2013 |
| ABC QS Services Limited | Rye | 2022 |
| ABC Racking Employee Ownership Trustee Limited | Walsall | 2025 |
| ABC Regulatory UK Ltd | London | 2024 |
| ABC Safety Ltd | Newark | 2023 |
| ABC Salon Marketing Limited | Southampton | 2010 |
| ABC Sanders Limited | York | 2013 |
| ABC Schools (Holdings) Limited | Edinburgh | 2005 |
| ABC Servicios Ltd | London | 2026 |
| ABC Simple Accounting Ltd | Bromley | 2023 |
| ABC Solicitors Yorkshire Limited | Halifax | 2014 |
| ABC Solutions Limited | Bristol | 2003 |
| ABC Sound Limited | Horsham | 2011 |
| ABC Southern Limited | London | 2018 |
| ABC Specialist Limited | Leicester | 2012 |
| ABC Strategy Limited | London | 2014 |
| ABC Strategy London Limited | London | 2012 |
| ABC Studio Consultant Ltd | London | 2023 |
| ABC Studios Ltd | Eastleigh | 2014 |
| ABC Systems Engineering Ltd | Stockport | 2025 |
| ABC Talent Consulting Ltd | London | 2023 |
| ABC Tax Accountants Limited | Baldock | 2015 |
| ABC Translations Ltd | Brighton | 2006 |
| ABC United Ltd | London | 2022 |
| ABC Venture Studio Opco Ltd | Romford | 2024 |
| ABC Wills Limited | Hornchurch | 2021 |
| ABC Worcester Limited | Worcester | 2013 |
| Abc&T Ltd | Calne | 2023 |
| Abc-Adr Limited | London | 2025 |
| Abc-Advice Ltd | London | 2024 |
| ABC111 Limited | London | 2003 |
| ABC123 Accounting Services Limited | Essex | 2002 |
| ABC123 Investments Limited | Manchester | 2019 |
| ABC123 Technical Solutions Ltd | London | 2020 |
| ABC2KYC Ltd | London | 2011 |
| ABC3 GRP Limited | Eye | 2011 |
| ABC3 Limited | Dundee | 2006 |
| ABC4 Limited | Reading | 2015 |
| ABC45 Ltd | Glasgow | 2025 |
| ABC4SAFETYUK Limited | Brierley Hill | 2018 |
| ABC9 Limited | Doncaster | 2006 |
| Abcad Solutions Ltd | Chigwell | 2019 |
| Abcarbon Limited | Saltburn-By-The-Sea | 2025 |
| Abcc Connect Limited | London | 2019 |
| Abcc Holdings Limited | Litlington | 2020 |
| Abccia Limited | Chatham | 2018 |
| Abcd Ltd | Manchester | 2025 |
| Abcd Marketing Limited | Ruislip, | 2026 |
| Abcd-Engineering Ltd | Nottingham | 2020 |
| ABCD8 Ltd | Glasgow | 2024 |
| Abcdesign (NE) Ltd | Shildon | 2024 |
| Abcdmedia Ltd | London | 2024 |
| Abchange Consultancy Ltd | East Barnet | 2011 |
| Abci Retirement Benefits Limited | Moira | 2019 |
| Abcint Nominees Limited | | 1984 |
| Abcl Accounting Ltd | St. Albans | 2022 |
| Abcl Review Limited | Sevenoaks | 2022 |
| Abclassic Photography Ltd | Sunderland | 2023 |
| Abclonal UK Limited | Swansea | 2021 |
| Abclosing Ltd | London | 2025 |
| Abco Computers Limited | Herts | 1992 |
| Abco Management Limited | North Shields | 1997 |
| Abco Seals Holdings Limited | Sheffield | 2005 |
| Abcodia CS Ltd | Manchester | 2013 |
| Abcodia Limited | Manchester | 2010 |
| Abcom Consulting Ltd | Barnsley | 2019 |
| Abcon International Limited | London | 2012 |
| Abcoordinations Ltd | Bromsgrove | 2026 |
| Abcreste Consulting Ltd. | Kingston Upon Thames | 2013 |
| Abcroft Interiors Limited | London | 2006 |
| Abcs Accountancy Limited | Cirencester | 2005 |
| Abcs-Uk Ltd | East Malling | 2021 |
| Abcsupplychain Ltd | London | 2020 |
| ABD & Associates UK Limited | Swanscombe | 2025 |
| ABD 42 Ltd | Manchester | 2025 |
| ABD Baig Consulting UK Limited | London | 2025 |
| ABD Consultancy Limited | Norwich | 2017 |
| ABD Designs Limited | Billingshurst | 2025 |
| ABD EL Baky-Evangelista Ltd | London | 2025 |
| ABD Integrated Consulting Ltd | Gainsborough | 2024 |
| ABD Legal (Scotland) Ltd | Glasgow | 2024 |
| ABD Legal Consulting Limited | London | 2016 |
| ABD Networks Limited | St Ives | 2008 |
| ABD Partners Limited | London | 2018 |