| Aktyvus Group Limited | London | 2025 |
| AKU Capital Ltd | Croydon | 2020 |
| AKU Optics Limited | Cheadle | 2026 |
| AKU Tech Limited | Luton | 2025 |
| Akua IT Services Ltd | Kington | 2018 |
| Akua Media Group Ltd | London | 2025 |
| Akuamedia Ltd | London | 2025 |
| Akuda Ltd. | Stockport | 2012 |
| Akudam Consulting Ltd | Chadwell Heath | 2017 |
| Akudapay Limited | London | 2025 |
| Akudozie Ltd | London | 2026 |
| Akudreams Ltd | Derby | 2014 |
| Akufit Ltd | London | 2026 |
| Akuko Ltd | Brighton | 2022 |
| Akula Solutions Limited | Hounslow | 2013 |
| Akulis Consultancy Ltd | London | 2023 |
| Akuma Arts Ltd | London | 2022 |
| Akuma Consulting Limited | London | 2025 |
| Akuma Corp Ltd. | London | 2016 |
| Akumar Consulting Limited | Tring | 2020 |
| Akumen Ltd | Bude | 2004 |
| Akunna Ezekwem Ltd | London | 2026 |
| Akunoshi Ltd | London | 2025 |
| Akupara Ltd | Durham | 2024 |
| AKUR8 Ltd | London | 2020 |
| Akurix Limited | | 2005 |
| Akuru Ltd | Orpington | 2021 |
| Akusoft Ltd | Godalming | 2018 |
| Akutari UK Ltd | London | 2024 |
| AKV Investments Limited | Peterborough | 2009 |
| Akvd Productions Limited | London | 2024 |
| Akvela Ltd | Luton | 2026 |
| Akveris Ltd | Congleton | 2026 |
| Akvideo Ltd | Hailsham | 2023 |
| Akvilon Ltd | London | 2024 |
| AKW Consultants Ltd | London | 2024 |
| AKW Consulting Ltd | Edinburgh | 2019 |
| AKW Software Services Limited | Aberdeen | 2018 |
| AKW Studio Limited | Northampton | 2023 |
| Akwa I.T. Ltd | London | 2018 |
| Akwaaba Village Entertainment Ltd | London | 2026 |
| Akwan Strategic Media Ltd | London | 2002 |
| Akwil Limited | Stockport | 2015 |
| Akwilkinson Consulting Limited | Warrington | 2015 |
| Akwocha Ltd | London | 2011 |
| Akwood Ltd | London | 2018 |
| AKX Enterprises Ltd | London | 2024 |
| AKX Estates Ltd | London | 2024 |
| AKX Group Ltd | London | 2024 |
| AKX Technologies Ltd | London | 2024 |
| Akxd Ltd | Cheltenham | 2026 |
| Akxells Limited | Bury St. Edmunds | 2025 |
| AKY X Group Ltd | London | 2022 |
| Akyn Ltd | London | 2023 |
| Akynmedia Ltd | London | 2025 |
| Akyrios Limited | Hounslow | 2024 |
| AKZ Media Ltd | Derby | 2025 |
| AKZ Sellers Limited | Ilford | 2025 |
| Akzent Limited | Thornton Heath | 2021 |
| Akzn Ltd | Glasgow | 2025 |
| Akçe Capital Limited | Rochester | 2024 |
| AL & EL Productions Ltd. | Epping | 1999 |
| AL & M Ltd | Higham Ferrers | 2019 |
| AL Accounting Bristol Ltd | Bristol | 2020 |
| AL Accounting Solutions Limited | South Croydon | 2006 |
| AL Akhtar Limited | Erith | 2025 |
| AL Ameen Consulting Limited | Batley | 2017 |
| AL Amin MUN Ltd | Southampton | 2025 |
| AL Analytical Services Limited | Manchester | 2014 |
| AL Anayah Global Company Limited | Luton | 2025 |
| AL Anazi Ltd | London | 2019 |
| AL Arab Publishing Limited | Rainham | 2025 |
| AL Baker Unlimited Limited | Waltham Abbey | 2013 |
| AL Bari Consulting Group Ltd | London | 2023 |
| AL Barron Limited | Chippenham | 2024 |
| AL Buraq Entertainment Limited | Birmingham | 2023 |
| AL Burraq IT Services Ltd | Birmingham | 2020 |
| AL Buruj Media Services Limited | Smethwick | 2026 |
| AL Chamberlain Ltd | Yeovil | 2019 |
| AL Comms Ltd | Darlington | 2026 |
| AL Communications Ltd | Hatfield | 2009 |
| AL Consultancy Ltd | Northampton | 2011 |
| AL Consulting Services Limited | Bracknell | 2016 |
| AL Core Partners Limited | Knutsford | 2019 |
| AL Core Technologies Limited | Knutsford | 2023 |
| AL Design Studio Ltd | Purley | 2024 |
| AL Fath Sonnah TV Ltd. | London | 2020 |
| AL Financial Services Limited | Sandhurst | 2018 |
| AL Fulani Ltd | London | 2022 |
| AL Global 4 Phones Limited | Aberdeen | 2002 |
| AL Hadaba Golden Group Ltd | London | 2025 |
| AL Haider Ltd | Bolton | 2017 |
| AL Hamda Ltd | Luton | 2025 |
| AL Hassan OIL Consultants (Private) Ltd | Stockport | 2024 |
| AL Hayat Publishing Company Limited | London | 1986 |
| AL Hijaz Tours Limited | Birmingham | 2010 |
| AL Hodhod Limited | Burgess Hill | 2008 |
| AL Horner Ltd | Worstead | 2021 |
| AL Imran Worldwide Technology Limited | Glasgow | 2024 |
| AL Innovation Solutions Ltd | Poole | 2025 |