| Akbm Group Holdings Ltd | Hayes | 2026 |
| AKC Capital Ltd | Richmond | 2025 |
| AKC Group Holdings Limited | Bournemouth | 2019 |
| AKC Holdings Limited | Brighton | 2012 |
| AKC Independent Financial Advisers Ltd | Livingston | 2016 |
| AKC Property Management Ltd | Bury | 2022 |
| Akce Group Limited | Rochester | 2024 |
| Akcm Services Limited | London | 2016 |
| Akcr Limited | Newport | 2024 |
| Akcros Acquisition Limited | Manchester | 2016 |
| Akda & Associates Limited | Harlow | 2011 |
| Akdemir Holdings Limited | Hull | 2022 |
| Akegata Ltd | Solihull | 2026 |
| Akeh Capital Ltd | London | 2025 |
| Akehurst Holdings Ltd | Haywards Heath | 2023 |
| Akela Enterprises Limited | Hayes | 2024 |
| Aken Capital Limited | London | 2017 |
| Akeo Investments Ltd | Brentford | 2021 |
| Aker Invest UK Limited | London | 2023 |
| Akereos Capital Ltd | London | 2016 |
| Akerlof (Holdings) Limited | Northampton | 2022 |
| Akers Pritchett Ltd | Nottingham | 2020 |
| Akers Properties Ltd | Otley | 2018 |
| Akessa Healthcare Ltd | London | 2023 |
| Akessa Holdings Limited | London | 2024 |
| Akestatica Holdings Ltd | Hayes | 2026 |
| Aketon Limited | Harrogate | 2003 |
| AKF Holding (Manchester) Limited | Manchester | 2023 |
| Akfg Ltd | Suffolk | 2025 |
| Akfp Ltd | Lisburn | 1995 |
| AKG Financial Analytics Ltd | Aylesbury | 1995 |
| Akgis Ltd | Surbiton | 2023 |
| AKH Consultancy Ltd | Ilford | 2011 |
| AKH Investments & Holdings Limited | Little Hallinbury | 2021 |
| Akhdar Limited | London | 2024 |
| Akhenaton Capital Management Limited | London | 2019 |
| Akhet Limited | Hove | 2021 |
| Akhigbe and Sons Ltd | London | 2019 |
| Akhil Property Ltd | Skeffington | 2019 |
| Akhjps Ltd | Harrow | 2026 |
| Akhomes Investment Limited | Birmingham | 2025 |
| Akhondzada Group Ltd | Manchester | 2022 |
| Akhs Holdings Limited | London | 2025 |
| Akhtar Capital (UK) Ltd | London | 2021 |
| Akhtar Franchise Holdings (UK) Ltd | London | 2017 |
| Akhtar Holdings and Investments Ltd | Dudley | 2026 |
| Akhtar Hussain Holdings and Investments Limited | Harrow | 2023 |
| Akhtar Investments Ltd | Luton | 2024 |
| Akhtar Property Holdings Ltd | Falkirk | 2025 |
| Akhters Holdings Limited | Nottingham | 2025 |
| Akhum Limited | Ilford | 2023 |
| AKI Capital Ltd | Ellesmere Port | 2026 |
| AKI Holdings Limited | Preston | 2021 |
| AKI Investments Ltd | London | 2019 |
| Akicap Holdings Ltd | London | 2025 |
| Akicap Ltd | London | 2025 |
| Akici Holding Limited | Waltham Cross | 2025 |
| Akig Holdings Ltd | Torpoint | 2025 |
| Akil Limited | London | 2011 |
| Akilli UK Ltd | Manchester | 2020 |
| Akin Group Ltd | Warwick | 2026 |
| Akin Holdings Ltd | Croydon | 2019 |
| Akina Investments Limited | Salford | 2025 |
| Akinfenwa Holding Company (AHC) Ltd | Dunstable | 2025 |
| Akinloye Trading & Investments Holdings Limited | Stanford-Le-Hope | 2021 |
| Akinova Limited | London | 2017 |
| Akinti Holdings Ltd | London | 2025 |
| Akio Financial Planning Limited | Dartford | 2026 |
| Akira Advisors Limited | London | 2020 |
| Akira Financial Limited | Bath | 2006 |
| Akira Holdings Limited | Leamington Spa | 2023 |
| Akira Investments Limited | London | 2021 |
| Akira Partners UK Ltd | London | 2009 |
| Akira Systems Finance Limited | Bath | 2024 |
| Akiro K Ltd | Crookham Village | 2021 |
| Akiro Mono Ltd | Fleet | 2021 |
| Akita Group Limited | Cardiff | 2008 |
| Akixi Bidco Ltd | Peterborough | 2022 |
| Akixi Midco Ltd | Peterborough | 2022 |
| Akixi Topco Ltd | Peterborough | 2022 |
| AKJ FX Ltd | London | 2025 |
| AKJ Investments Ltd | London | 2015 |
| Akjbm Holdings Ltd | Bolton | 2024 |
| Akjel Limited | Didcot | 2024 |
| Akjlts Holding Limited | Hessle | 2025 |
| AKK30 Holdings Limited | Sidcup | 2020 |
| Akka App UK Ltd | London | 2023 |
| Akka Financial Technologies Ltd | London | 2025 |
| Akkerman Ltd | Bromley | 2025 |
| Akkistrading Ltd | Sunderland | 2024 |
| Akkv Bridging Limited | Haymarket | 2022 |
| AKL Financial Management Ltd | Glasgow | 2009 |
| AKL Mortgages Ltd | Belfast | 2024 |
| Akleja Ltd | London | 2021 |
| Aklu Miah Holdings Ltd | London | 2020 |
| AKM & SON Holdings Limited | Harrow | 2022 |
| AKM Capital Group Limited | London | 2026 |
| AKM Financial Services Ltd | London | 2020 |
| AKM UK Group Ltd | Bedford | 1999 |
| Akmc Holdings Ltd | Barnet | 2023 |