| Alytrail Solutions Ltd | London | 2025 |
| Alyusr Engineering Consulting Company Ltd | London | 2025 |
| Alyyzandre Studio Limited | London | 2023 |
| Alyza Limited | Stevenage | 2026 |
| ALZ Accountancy Limited | Newark | 2011 |
| ALZ Software Ltd | London | 2013 |
| Alza Accounting & Management Solutions Ltd | Staines-Upon-Thames | 2012 |
| Alzabin Ltd | Eastbourne | 2021 |
| Alzaga Management Ltd | London | 2021 |
| Alzan | Bristol | 2018 |
| Alzawawy Ltd | London | 2015 |
| Alzayn Holdings Limited | Leicester | 2025 |
| Alzoka Limited | Sawbridgeworth | 2017 |
| Alzote Limited | Bournemouth | 2022 |
| Alztec Limited | Ripley | 2022 |
| Alzuti Ltd | Weybridge | 2018 |
| Alèclee Designs Ltd | Sutton Coldfield | 2025 |
| AM & Advisors Ltd | Harrow | 2024 |
| AM & Associates Ltd. | Lancaster | 2011 |
| AM & BEN C Limited | London | 2008 |
| AM & Brother Ltd | Rochdale | 2019 |
| AM & L Properties Limited | London | 2007 |
| AM & Partners Ltd | London | 2018 |
| AM & TB Management Ltd | Stratford Upon Avon | 2018 |
| AM (Preston) Limited | Preston | 2010 |
| AM 3D Design Consultants Ltd | Barrow-In-Furness | 2021 |
| AM 76 Limited | Derby | 2019 |
| AM Abstract Labs Ltd | London | 2025 |
| AM Accountancy & Office Management Ltd | Barwell | 2005 |
| AM Accountancy Ltd | Fleet | 2023 |
| AM Accountancy Services Ltd | Birmingham | 2026 |
| AM Accountancy Solutions Limited | Hyde | 2023 |
| AM Accountants & Tax Advisors Ltd | Middlesbrough | 2023 |
| AM Accountax Limited | London | 2016 |
| AM Accountex Ltd | London | 2018 |
| AM Accounting & Tax Solutions Ltd | Northampton | 2025 |
| AM Accounting (Salisbury) Ltd | Salisbury | 2023 |
| AM Accounting and Consulting Limited | Cheadle | 2026 |
| AM Accounting Services Ltd | Leeds | 2015 |
| AM Accounting Solutions Limited | London | 2021 |
| AM Accounts Inc Ltd | Eastleigh | 2026 |
| AM Accounts Ltd | Matlock | 2004 |
| AM Accounts Services Limited | Rotherham | 2016 |
| AM Advisers Ltd | Sevenoaks | 2017 |
| AM Advisory Ltd. | Lichfield | 2016 |
| AM Advisory Solutions Ltd | Hove | 2025 |
| AM Architectural Ltd | Ellesmere | 2024 |
| AM Architecture + Design Ltd | Swanley | 2020 |
| AM Audit Limited | Preston | 2013 |
| AM Awan Consultancy Services Limited | London | 2016 |
| AM BID Services Ltd | Edinburgh | 2014 |
| AM Black Ltd | Barnet | 2011 |
| AM Bodach Ltd | Falkirk | 2025 |
| AM Book Keeping Ltd | Bathgate | 2019 |
| AM Bookkeeping & Accounting Ltd | Plymouth | 2025 |
| AM Brand Consultancy Ltd | Farnham | 2018 |
| AM Branding Ltd | Cambridge | 2020 |
| AM Brands Creative Limited | Harrow | 2022 |
| AM Building Surveyors Limited | Leeds | 2024 |
| AM Burch Services Limited | Cheltenham | 2024 |
| AM Business and Accountancy Services Ltd | Harrogate | 2015 |
| AM Business Associates Ltd | Bridgnorth | 2009 |
| AM Business Consulting Ltd | Fordingbridge | 2024 |
| AM Business Solutions Limited | Warrington | 2007 |
| AM Byth Global Ltd. | Leigh | 2014 |
| AM Capital Finance Ltd | London | 2025 |
| AM Capital Partners Ltd | Altrincham | 2023 |
| AM Celebrant Ltd | Newton Mearns | 2023 |
| AM Change Consulting Ltd | Salford | 2019 |
| AM Civil Engineering Services Ltd | Belfast | 2021 |
| AM Civil Solutions Ltd | Bury | 2026 |
| AM Clack Limited | Sutton Coldfield | 2012 |
| AM Coaching & Consulting Ltd | London | 2022 |
| AM Commercial Consultancy Limited | Kettering | 2023 |
| AM Communications Limited | Lincoln | 2022 |
| AM Construction & Engineering Limited | Epsom | 2016 |
| AM Construction Consulting Limited | Ballyclare | 2018 |
| AM Construction Cost Management Ltd | Ashford | 2019 |
| AM Construction Management Ltd | Glasgow | 2020 |
| AM Construction Services (Burton) Ltd | Burton On Trent | 2017 |
| AM Consult Services Ltd | Uxbridge | 2025 |
| AM Consultancies Limited | London | 2019 |
| AM Consultancy (UK) Limited | London | 2013 |
| AM Consultancy BFD Ltd | Leeds | 2026 |
| AM Consultancy Projects Limited | Stockport | 2012 |
| AM Consultancy Scotland Ltd | Edinburgh | 2023 |
| AM Consultants 2018 Ltd | London | 2025 |
| AM Consulting & Contracting Limited | Glasgow | 2017 |
| AM Consulting (London) Limited | London | 2012 |
| AM Consulting (NI) Ltd | Bangor | 2014 |
| AM Consulting (Scotland) Ltd | Glasgow | 2020 |
| AM Consulting Engineers Holdings Ltd | Belfast | 2025 |
| AM Consulting Engineers Ltd | Westhill | 2012 |
| AM Consulting Group Ltd | London | 2026 |
| AM Consulting International Ltd | London | 2015 |
| AM Consulting Solutions Ltd | Stockton-On-Tees | 2025 |
| AM Coordination Services Ltd | Pembroke | 2023 |
| AM Corporate Finance Limited | Aberdeen | 2013 |
| AM Corporate Group Ltd | Harrow | 2025 |
| AM Corporate Ltd | Solihull | 2026 |