| Allspring Global Investments (UK) Limited | London | 1999 |
| Allstadar Limited | London | 2025 |
| Allstaff EOT Trustees Limited | Paisley | 2023 |
| Allstaff Group Limited | Paisley | 2008 |
| Allstaff Solutions Limited | Paisley | 2018 |
| Allstar Group Limited | Leeds | 2021 |
| Allstar Investors Limited | Chester | 2019 |
| Allstar Traders Ltd | London | 2006 |
| Allstate Global Holdings Limited | Belfast | 2014 |
| Allstock Counsulting Limited | Pinner | 2014 |
| Allstoreys Group (Holdings) Ltd | Sutton Coldfield | 2019 |
| Allsworth Family Investments Limited | Chatham | 2017 |
| Alltask Holdings Limited | Rochester | 2014 |
| Allthread Fasteners (Holdings) Limited | Riversway, Preston | 2004 |
| Alltmore Asset Management Limited | Boat Of Garten | 2019 |
| Alltmore Limited | Boat Of Garten | 2019 |
| Alltrade Group Holdings Limited | Hove | 2024 |
| Alltrax Group Ltd | Leicester | 2016 |
| Alltrust Holdings Limited | Salisbury | 2005 |
| Alltrust Services Limited | Salisbury | 2005 |
| Alltype Holdings Limited | Bromley | 2020 |
| Allum and Company (Holdings) Limited | London | 2020 |
| Allum Holdings Group Limited | Bromsgrove | 2026 |
| Allumette Ltd | Birmingham | 2016 |
| Allure Capital Ltd | Taunton | 2021 |
| Allure Executive Limited | London | 2014 |
| Allvedo Group Ltd | London | 2026 |
| Allwag Holdings Limited | Billericay | 2026 |
| Allwater Group Limited | Cheddar | 2018 |
| Allweather Refrigeration Holdings Limited | Dartford | 2021 |
| Allwise Holdings Limited | London | 2018 |
| Allworking Ltd | Doncaster | 2026 |
| Allwyn Entertainment Financing (UK) PLC | London | 2022 |
| Allwyn Entertainment Ltd | Watford | 2021 |
| Allwyn UK Holding B Ltd | London | 2022 |
| Allwyn UK Holding C Ltd | London | 2022 |
| Allwyn UK Holding Ltd | London | 2021 |
| Allx Ltd | Harrow | 2014 |
| Ally (Exeter) Limited | Exeter | 2012 |
| Ally Ventures Ltd | London | 2022 |
| Ally's Angels Limited | Oakham | 2023 |
| Allydo Limited | London | 2023 |
| ALM & ALM Ltd | Seaham | 2025 |
| ALM - Investment Holding Ltd | Bridgend | 2019 |
| ALM Capital Investment PTE Limited | London | 2021 |
| ALM Financial Ltd | Craigavon | 2023 |
| ALM Globaltech Holdings Limited | Solihull | 2025 |
| ALM Group Holdings Limited | Exeter | 2025 |
| ALM Holdings (Telford) Ltd | Halesfield 8 | 2017 |
| ALM London Limited | London | 2022 |
| ALM Mortgages Limited | Wallington | 2018 |
| ALM Solutions Limited | Glasgow | 2011 |
| Alma Attic Limited | West Byfleet | 2003 |
| Alma Capital London Limited | London | 2005 |
| Alma Hill Bidco Limited | London | 2026 |
| Alma I Advisory Ltd | London | 2021 |
| Alma Invest Holding Ltd | London | 2014 |
| Alma MAY Enterprise Ltd | Hull | 2025 |
| Alma Mortgages Ltd | Elgin | 2025 |
| Alma Noor Ltd | London | 2025 |
| Alma Nutrix Limited | London | 2019 |
| Alma Partners Ltd | London | 2021 |
| Alma Rail Holdings Ltd | Kings Bromley | 2022 |
| Alma Resources Limited | Newcastle Upon Tyne | 2011 |
| Alma Supplies Limited | Liverpool | 2019 |
| Alma UK Holdings Ltd | London | 2021 |
| Alma Vale Wealth Management Limited | Bristol | 2013 |
| Alma Verde Limited | Bolton | 2025 |
| ALMA24 Limited | London | 2024 |
| Almacantar Group Limited | London | 2018 |
| Almaden Holdings Ltd | Milton Keynes | 2016 |
| Almadon Group Limited | Hoton | 2026 |
| Almadraba Limited | Chalgrove | 2011 |
| Almagema Ltd | Isle Of Skye | 2022 |
| Almalia Limited | Bradford | 2017 |
| Alman Partners Limited | London | 2023 |
| Almanac Ventures Limited | Oakham | 2024 |
| Almanar Security Ltd | Perth | 2024 |
| Almanson Holding Ltd | London | 2019 |
| Almape Holdings Limited | Cardiff | 2023 |
| Almar Enterprises Limited | Farnham | 1998 |
| Almar Holdings Limited | Manchester | 2018 |
| Almar Two Ltd | Hitchin | 2016 |
| Almary Green Holdings Limited | Norwich | 2018 |
| Almary Green Investments Limited | Norwich | 2001 |
| Almas Holdings Limited | Weybridge | 2023 |
| Almas Industries Ltd | London | 2012 |
| Almas Resources Ltd | London | 2026 |
| Almast Limited | Broadstone | 2006 |
| Almax Renew Ltd | London | 2023 |
| Almaz's Group Ltd | London | 2024 |
| Almcor (Retail Warehousing) Limited | London | 2021 |
| Almcor (RW Holdco) Limited | London | 2021 |
| Almcor (RW Intermediate) Limited | London | 2021 |
| Almcor (Spendarry) Limited | London | 2020 |
| Almcor Capital Limited | London | 2021 |
| Almcor Commercial Limited | London | 2021 |
| Almcor ISF Limited | London | 2022 |
| Almcq Ltd | Bexleyheath | 2024 |
| Almd Holdings Ltd | Crawley | 2026 |