| Abbott Veterinary Physiotherapy Ltd | Bromley | 2021 |
| Abbott's Office Services Limited | Cranfield | 2005 |
| Abbott's Packaging Limited | Middle March Business Park | 1942 |
| Abbotts & Park Ltd | London | 2020 |
| Abbotts Consulting Limited | London | 2018 |
| Abbotts Estate Agents Ltd | Altrincham | 1991 |
| Abbotts Financial Limited | London | 2011 |
| Abbotts Langley Nominee Limited | Southampton | 2015 |
| Abbotts Martin Ltd | London | 2017 |
| Abbpharm Ltd | Stockport | 2022 |
| Abbra Solutions Limited | Shanklin | 2012 |
| Abbrecus Ltd | Halifax | 2013 |
| Abbs Inspek Ltd | Huntingdon | 2024 |
| Abbsb Limited | Kingswinford | 2012 |
| Abbseuo UK Ltd | London | 2023 |
| Abby Accounting Ltd | Rayleigh | 2022 |
| Abby Carpenter Limited | Surbiton | 2019 |
| Abby Fire (Northwest) Ltd | Blackburn | 2025 |
| Abby RAY Ltd | Felixstowe | 2025 |
| Abby Shacklock Coaching and Advisory Ltd | Southampton | 2026 |
| Abby Sumrie Ltd | London | 2025 |
| Abby Wilkes Limited | West Midlands | 2006 |
| Abby Zihler Ltd | Chelmsford | 2024 |
| Abbyed Ltd | Benfleet | 2018 |
| Abby’S HRM Consultancy Ltd | Greenwich | 2025 |
| ABC (EDI) Ltd | Edinburgh | 2022 |
| ABC (Solent) Limited | Romsey | 2011 |
| ABC 123 Ltd | Christchurch | 1997 |
| ABC 2014 Limited | Workington | 2013 |
| ABC 6 Ltd | London | 2024 |
| ABC Abacus Ltd | Long Stratton | 2008 |
| ABC Accountancy and Book Keeping Services Limited | Carmarthen | 2012 |
| ABC Accountancy Ltd | Fleet | 2025 |
| ABC Accountancy Moray Limited | Forres | 2019 |
| ABC Accountancy Services (UK) Ltd | Colchester | 2017 |
| ABC Accountants Limited | Waterlooville | 2004 |
| ABC Accounting & Consultancy Limited | Manchester | 2021 |
| ABC Accounting and Bookkeeping Company Ltd | Sheffield | 2019 |
| ABC Accounting Ltd | Liverpool | 2015 |
| ABC Accounting Services (South West) Limited | Devizes | 1995 |
| ABC Accounts (Sussex) Ltd | Pevensey | 2011 |
| ABC Accounts Limited | Leicester | 2010 |
| ABC Actuarial Limited | Bromley | 2018 |
| ABC Advisors Limited | London | 2021 |
| ABC Alpha Business Centres UK Limited | Nottingham | 2012 |
| ABC Alpha Business Centres VI UK Limited | Nottingham | 2015 |
| ABC Analysis Ltd | Hartley Wintney | 2023 |
| ABC Assignments Limited | Lancashire | 2007 |
| ABC Bar & Kitchen Equipment Limited | Essex | 2005 |
| ABC Bespoke QS Ltd | Hook | 2017 |
| ABC BIZ Solutions Limited | Aberdeen | 2023 |
| ABC Block Management Limited | London | 2014 |
| ABC Book Keeping & Accounting Services Limited | Northallerton | 2003 |
| ABC Bookkeeping & Accountancy Limited | London | 2009 |
| ABC Bookkeeping and Accountancy (UK) Ltd | Birmingham | 2014 |
| ABC Bookkeeping Ltd | London | 2023 |
| ABC Bromley Ltd | London | 2015 |
| ABC Bureau Ltd | Warrington | 2016 |
| ABC Business Communications Ltd | | 2005 |
| ABC Business Innovation Consultants Ltd | Derry | 2013 |
| ABC Business Services UK Limited | Liverpool | 2025 |
| ABC Case Management Services Ltd | Liverpool | 2012 |
| ABC Claims Assist Ltd | Glasgow | 2026 |
| ABC Cleaning 24/7 Ltd | London | 2025 |
| ABC Community Network | Craigavon | 1999 |
| ABC Consortium Limited | Orpington | 2020 |
| ABC Construction (Scotland) Ltd. | Glasgow | 2019 |
| ABC Construction and Materials Limited | Manchester | 2019 |
| ABC Construction Consultants Limited | Harrow | 2011 |
| ABC Consulting Accountants and Business Advisers Limited | Rossendale | 1998 |
| ABC Consulting Group (Shropshire) Limited | Oswestry | 2014 |
| ABC Controls Ltd | Harrow | 2007 |
| ABC Creative House Limited | Rotherham | 2026 |
| ABC Debt Solutions Limited | Bolton | 2018 |
| ABC Devon Ltd | Barnstaple | 2012 |
| ABC Digital Marketing Limited | Southall | 2024 |
| ABC Education Culture Exchange Centre Ltd | Cardiff | 2012 |
| ABC Electricity Limited | Stoke-On-Trent | 2025 |
| ABC Elevators Limited | Bognor Regis | 2018 |
| ABC Energy Consultants Limited | Tonbridge | 2015 |
| ABC Environs Limited | Hampshire | 2000 |
| ABC Estates (London) Ltd | London | 2014 |
| ABC Facility Ltd | London | 2023 |
| ABC Family Law Services Limited | Luton | 2017 |
| ABC FEL Limited | London | 2019 |
| ABC Fire Safety Security Ltd | Middlesbrough | 2026 |
| ABC FML Limited | London | 2016 |
| ABC Generation Limited | Walsall | 2009 |
| ABC Global Communications Limited | London | 2025 |
| ABC Health Advisory Group Ltd | London | 2026 |
| ABC Health and Safety Consultancy Limited | Surrey | 2007 |
| ABC House & Extension Calculations Ltd | Herne Bay | 2016 |
| ABC Immigration London Limited | London | 2024 |
| ABC Investments Group Limited | London | 2023 |
| ABC Knitwear Limited | London | 2015 |
| ABC Legal Limited | Edinburgh | 2025 |
| ABC Leicester Limited | Leicester | 2012 |
| ABC Lifelong Learning Online Ltd | East Grinstead | 2020 |
| ABC Logistics Consultancy Ltd | Bideford | 2013 |
| ABC Management Consultants Ltd | Solihull | 2002 |