| Abbey&Mulik Limited | London | 2023 |
| Abbeycomp - IT Solutions Limited | | 2002 |
| Abbeycrown Systems Limited | Aldermaston | 1994 |
| Abbeyfield Communications Limited | Rayleigh | 2012 |
| Abbeyfield Films Ltd | Alton | 2008 |
| Abbeyflex Limited | Bedford | 2024 |
| Abbeygate Cinema Limited | Bury St. Edmunds | 2014 |
| Abbeygate IT Management Services Ltd | London | 2013 |
| Abbeygate IT Solutions Ltd | Thetford | 2021 |
| Abbeygreen Group Ltd | Paisley | 2023 |
| Abbeymagic Limited | Oxford | 1990 |
| Abbeymax Solutions Limited | Bonnyrigg | 2025 |
| Abbeymore Consultancy Limited | Watford | 1994 |
| Abbeynash Technology Ltd | Dartford | 2023 |
| Abbeynest Limited | London | 1998 |
| Abbeyoak Press Limited | Chippenham | 2004 |
| Abbeyoake Limited | Chippenham | 2013 |
| Abbeyset Limited | Rickmansworth | 1992 |
| Abbeystreet Limited | Caerphilly | 1996 |
| Abbeytech Consultancy Limited | Fareham | 2007 |
| Abbeytek Ltd. | Pickering | 1998 |
| Abbeyx Ltd | London | 2021 |
| Abbfem Consulting Limited | Newport Pagnell | 2014 |
| Abbie Nail Artist Ltd | Romford | 2023 |
| Abbie Rushton Editorial Limited | Norwich | 2024 |
| Abbie Stephens Limited | Isleworth | 2018 |
| Abbiecom Limited | Canvey Island | 2012 |
| Abbiexhooper Ltd | Yeovil | 2026 |
| Abbigrace Productions Limited | London | 2022 |
| Abbili Limited | London | 2019 |
| Abbitech Ltd | Cardiff | 2019 |
| Abbiys Limited | London | 2017 |
| Abbot IT Solutions Ltd | Birmingham | 2022 |
| Abbot Solutions Limited | Derby | 2008 |
| Abbot Telecoms Ltd | Reading | 2018 |
| Abbot-Davies Associates Ltd | Bradley Stoke | 2016 |
| Abbots Advisory Limited | Ross-On-Wye | 2026 |
| Abbots March Limited | Uxbridge | 2022 |
| Abbotsbury Software Limited | Weymouth | 1980 |
| Abbotsford Industries Limited | London | 2026 |
| Abbotswood Automation Ltd | Romsey | 2026 |
| Abbotswood Corporate Services Limited | Penzance | 2008 |
| Abbotswood Services Limited | Sutton | 2008 |
| Abbott and Taylor Limited | London | 2012 |
| Abbott Browne Limited | Stockport | 2019 |
| Abbott Chalew Limited | Crowborough | 2019 |
| Abbott Designs Limited | Aylesbury | 2005 |
| Abbott Fibre Services Ltd | London | 2022 |
| Abbott Green Services Ltd | London | 2023 |
| Abbott Internet Consultants Limited | Shipston-On-Stour | 2009 |
| Abbott Landscapes Ltd | Halesowen | 2007 |
| Abbott Media Ltd | Westgate-On-Sea | 2017 |
| Abbott Rogers Associates Limited | Hemel Hempstead | 2017 |
| Abbott Technologies International Ltd | Croydon | 2018 |
| Abbott Venture Ltd | Huntingdon | 2026 |
| Abbott's Communications Ltd | London | 2019 |
| Abbottcam Ltd | Norwich | 2023 |
| Abbottech Ltd | London | 2025 |
| Abbotts & Regency Limited | Croydon | 2013 |
| Abbotts Advisory Limited | Ross-On-Wye | 2026 |
| Abbotts Park Homes Limited | Norwich | 2016 |
| Abbottvision NO Offence Limited | London | 2013 |
| Abbottvision NO Offence S2 Limited | London | 2015 |
| Abbottvision NO Offence S3 Limited | London | 2017 |
| Abbottvision Productions Ltd | London | 2019 |
| Abbottvision Wolfe Ltd | London | 2019 |
| Abbpay Solutions Ltd | Newport Pagnell, England | 2025 |
| Abbrr Limited | Milton Keynes | 2015 |
| Abbs Consultancy Ltd | Chandler Ford | 2017 |
| Abbs International Services Ltd | Eastham | 2011 |
| Abbsolut Ltd | Swindon | 2010 |
| Abbusys Limited | Surrey | 2004 |
| Abby & Partners Ltd | Harrow | 2025 |
| Abby AI Limited | Maidstone | 2024 |
| Abby App Ltd | London | 2023 |
| Abby Beech Limited | Eckington | 2024 |
| Abby Digital Europe Limited | Coventry | 2023 |
| Abby Higgins Ltd | Dromore | 2026 |
| Abby IO Ltd | London | 2023 |
| Abby Normal Limited | Bracknell | 2024 |
| Abby Support Limited | London | 2022 |
| Abby Technologies Ltd | Grangemouth | 2025 |
| Abbyfuture Ltd | London | 2025 |
| Abbyy UK Ltd | London | 2006 |
| ABC (Allison Bayani Consulting) Limited | Wimborne | 2026 |
| ABC Ability Limited | London | 2025 |
| ABC Accountancy & Marketing Services Ltd | London | 2006 |
| ABC Business Solutions Ltd | Braunton | 2010 |
| ABC Cinemas Limited | London | 1996 |
| ABC Clinical Desk Ltd | London | 2026 |
| ABC Cloud Services Ltd | London | 2020 |
| ABC Community Ssdab Ltd | Newry | 2022 |
| ABC Companion Co. Limited | Manchester | 2025 |
| ABC Computing Limited | Colwyn Bay | 1997 |
| ABC Consulting Services Ltd | London | 2004 |
| ABC Consulting Solutions Limited | London | 2012 |
| ABC Cyber Ltd | Stoke-On-Trent | 2026 |
| ABC Data Recovery Limited | Sheffield | 2015 |
| ABC Design and Communications Limited | Preston | 2009 |
| ABC Digit Ltd | London | 2025 |