| AB Marketing Consultancy Ltd | London | 2018 |
| AB Marketing Services Limited | Cambridge | 2009 |
| AB MARKETING2025 Ltd | London | 2025 |
| AB Mauri (UK) Limited | London | 1987 |
| AB Mechanical Group Ltd | Castell-Nedd | 2025 |
| AB Medcomms Ltd | Hove / East Sussex | 2025 |
| AB Microelectronics Limited | Weybridge | 1984 |
| AB Neilan Ltd | Glasgow | 2022 |
| AB Network Ltd | London | 2025 |
| AB Northern Accounting Limited | Whitley Bay | 2022 |
| AB Notaries Limited | Enfield | 2023 |
| AB Offshore Ltd | Blackpool | 2018 |
| AB OVO Ventures Ltd | Edinburgh | 2016 |
| AB Paul Ltd | Londonderry | 2024 |
| AB PAY Limited | Manchester | 2023 |
| AB Performance Coaching Ltd | St. Ives | 2025 |
| AB Photography UK Ltd | Flint | 2025 |
| AB Plant Engineering Ltd | Scunthorpe | 2022 |
| AB Plant Services Ltd | Crumlin | 2021 |
| AB Power Ltd | Salisbury | 2019 |
| AB Power Systems Ltd | Northallerton | 2014 |
| AB Process Support Ltd | Warrington | 2017 |
| AB Procurement Services Limited | London | 2015 |
| AB Procurement Solutions Limited | Middlewich | 2024 |
| AB Product Design Limited | London | 2026 |
| AB Professional Consultancy Limited | London | 2019 |
| AB Professionals Ltd | Cardiff | 2018 |
| AB Project Management Consultancy Ltd | Shepton Mallet | 2024 |
| AB QS Solutions Ltd | Royal Victoria Docks | 2015 |
| AB R&D Advisors Ltd | Blackpool | 2026 |
| AB RE Holding Ltd | London | 2023 |
| AB Remedy Limited | Uxbridge | 2023 |
| AB Research Consulting Ltd | London | 2024 |
| AB Retail Consulting Limited | Stratford Upon Avon | 2013 |
| AB Risk Limited | Llandudno | 2008 |
| AB Robinson Engineering Limited | Kidderminster | 2016 |
| AB Roger & Young Limited | Montrose | 2014 |
| AB Rogers Limited | London | 2004 |
| AB Sales Consultancy Limited | Wigan | 2026 |
| AB Scientific Ltd | London | 2014 |
| AB Sciex UK Limited | Solihull | 2009 |
| AB Scot Accountants Ltd | Glasgow | 2024 |
| AB Security Consulting Limited | Chepstow | 2025 |
| AB Site Services Ltd | Grimsby | 2023 |
| AB Specialist Installations Ltd | Ipswich | 2024 |
| AB Squared Limited | Hessle | 2021 |
| AB Strategic Finance Ltd | London | 2024 |
| AB Strategy & Consulting Limited | Hornchurch | 2025 |
| AB Strategy Consulting Ltd | Harrow | 2024 |
| AB Structural Ltd | London | 2021 |
| AB Sugar China Holdings Limited | London | 2015 |
| AB Supply Chain Ltd | Wigan | 2021 |
| AB T&Cs Ltd | Wednesbury | 2014 |
| AB Tax Services Ltd | Watford | 2018 |
| AB Tax Solutions Ltd | Wallington | 2026 |
| AB Tech Survey Ltd | Glasgow | 2024 |
| AB Technical & Offshore Services Ltd | Gateshead | 2018 |
| AB Technician Services Ltd | Banff | 2024 |
| AB Trade Holding Co Ltd | Mansfield | 2026 |
| AB Trading and Investing Ltd | Harpenden | 2013 |
| AB Transformation Limited | London | 2018 |
| AB Translation & Benefits Ltd | Newark | 2018 |
| AB Transmission Protection Limited | Sheffield | 2011 |
| AB UK Consulting Services Ltd | London | 2024 |
| AB UK Solutions Ltd | Lowestoft | 2010 |
| AB UK Trading Limited | London | 2024 |
| AB VENTURES91 Limited | London | 2026 |
| AB Virtue Ltd | Aberdeen | 2021 |
| AB Water Service Ltd | St. Helens | 2023 |
| AB Wealth Management Limited | Warminster | 2019 |
| AB Wellness Academy Ltd | Bradford | 2026 |
| AB Whitney & Co. UK Limited | London | 2019 |
| AB Willows Care Services Ltd | Warwick | 2022 |
| AB World Foods (Holdings) Limited | London | 2007 |
| AB Yacht Design & Naval Architecture Limited | Hove | 2023 |
| Ab&C Consultancy Limited | Stockport | 2024 |
| Ab&C Consulting Ltd | Litlington | 2021 |
| Ab&C Management Ltd | Edinburgh | 2025 |
| Ab&C Safety Consultants Limited | Liverpool | 2025 |
| Ab&I Clearbooks Ltd | Coulsdon | 2025 |
| Ab,C Copywriter Limited | Lewes | 2013 |
| AB-1 Solutions Limited | London | 2020 |
| Ab-Aura Beauty Limited | Epsom | 2025 |
| Ab-Cd Solutions Ltd | Farnham | 2005 |
| Ab-D Satellite System Engineering Limited | Letchworth | 2015 |
| Ab-En Limited | Congleton | 2013 |
| Ab-M & E Projects Limited | Tonbridge | 2015 |
| Ab-Ra Consulting Ltd | London | 2023 |
| Ab-Sea Surveys Limited | London | 2016 |
| Ab-Solve Limited | Whitley Bay | 2012 |
| Ab-Vf Accounting & Book-Keeping Services Ltd | Braintree | 2025 |
| Ab.Rf Locums Ltd | Leicester | 2025 |
| AB1 Capital Ltd | Birmingham | 2024 |
| AB1 Design Ltd | Stockton-On-Tees | 2022 |
| AB1 Group Limited | London | 2020 |
| AB10 Engineering Ltd | Middlesbrough | 2021 |
| AB10 Limited | Aberdeen | 2017 |
| AB11 Consulting Ltd | Ashtead | 2026 |
| AB11 Limited | Aberdeen | 2019 |
| AB12 GP Ltd | London | 2023 |