| Alma Ventures Limited | Hampshire | 2000 |
| Almaagroup Ltd | London | 2021 |
| Almaarie Limited | London | 2017 |
| Almac Pharma Services Limited | Craigavon | 2003 |
| Almac Sales & Service Limited | Glasgow | 1988 |
| Almacit Engineering Ltd. | Morayshire | 2004 |
| Almacomposites Ltd | Southampton | 2013 |
| Almada Bakery Limited | London | 2021 |
| Almaj Charlotte Gadeke Ltd | London | 2024 |
| Almajd Trading Co., Ltd | Kington | 2024 |
| Almak Services Limited | Fordingbridge | 2008 |
| Almalik (UK) Ltd | London | 2013 |
| Alman Design Ltd | Whitstable | 2020 |
| Alman Global Limited | London | 2025 |
| Almanack Ltd | London | 2025 |
| Almantis Foods Ltd | Castleford | 2026 |
| Almar Services Limited | Manchester | 1987 |
| Almarine Ltd | Liskeard | 2022 |
| Almark Limited | Stockton-On-Tees | 2001 |
| Almarsad Media Limited | Feltham | 2025 |
| Almarssadpro Ltd | London | 2021 |
| Almas Clothing Ltd | Blackburn | 2015 |
| Almas Henna Ltd | London | 2025 |
| Almas Jewellers & Bridal Limited | Mirfield | 2016 |
| Almas Sweet World Limited | Manchester | 2015 |
| Almasah Food Industry UK Ltd | London | 2022 |
| Almasira Ltd | London | 2022 |
| Almasria Plast Ltd | Manchester | 2025 |
| Almasty Brewing Company Ltd | Newcastle Upon Tyne | 2014 |
| Almat NI. Ltd | Craigavon | 2022 |
| Almath Crucibles Limited | Burrough Green, Newmarket | 1996 |
| Almatni Electric and General Maintenance Services Ltd | Northolt | 2020 |
| Almax Security Chains Limited | Blaydon-On-Tyne | 2003 |
| Almaz Innovate Fife Foods Company Limited | Kirkcaldy | 2018 |
| Almaz Worktops Ltd | Harlow | 2020 |
| Almedina Bakery Ltd | Birmingham | 2023 |
| Almesco Limited | Exeter | 1989 |
| Almesse Limited | Manchester | 2025 |
| Almet Doors Ltd. | Glasgow | 2001 |
| Almet Sheet Metal Fabrication Limited | Washington | 2007 |
| Almetron Limited | Wrexham | 1983 |
| Almex Engineering Ltd | Swadlincote | 2009 |
| Almighty Agency Ltd | Leicester | 2023 |
| Almighty Foods Limited | Dundee | 2016 |
| Almighty Handyman Ltd | Luton | 2025 |
| Almit Metal Finishing Ltd | Darlington | 2004 |
| Almithaaliyah Ltd | Newcastle Upon Tyne | 2025 |
| Almk Ltd | Bradford | 2025 |
| Almo Creates Limited | Rickmansworth | 2024 |
| Almo Glazing Limited | Bury | 2011 |
| Almo Solutions Ltd | London | 2005 |
| Almocado London Ltd | Cardiff | 2010 |
| Almoheet for Business Ltd | London | 2023 |
| Almond Engineering Limited | Livingston | 2002 |
| Almond Park Motor Company Ltd | Edinburgh | 2023 |
| Almond Toast &Juice Co Ltd | Birmingham | 2024 |
| Almondsbury Forge Limited | Olveston | 2025 |
| Almondsbury Forge Works Limited | Bristol | 1980 |
| Almor Limited | London | 1992 |
| Almost Alchemy Limited | Cirencester | 2016 |
| Almost Enjoyable Ltd | Penarth | 2019 |
| Almost Ready Ltd | Manchester | 2025 |
| Almotech UK Limited | Newry | 2022 |
| Almumtaz Ltd | Manchester | 2026 |
| ALN Circuits Ltd | Bromsgrove | 1992 |
| ALN Design Ltd | St Albans | 2010 |
| Alna Home Ltd | Bordon | 2025 |
| Alnaira Group Ltd | Ruislip, | 2024 |
| Alnawas Limited | Wembley | 2012 |
| Alner Hamblin Electronics Limited | Bristol | 1987 |
| Alnev Ltd | Newark | 2019 |
| Alnmaritec Limited | Gosforth | 2006 |
| Alno Product Services Limited | Tewkesbury | 1992 |
| Alnojoom Trading Ltd | Leeds | 2023 |
| Alnotics Limited | Kettering | 2017 |
| Alnour for Trading and Contracting Ltd | England, Hg1 1Nd | 2025 |
| Alnours Group Ltd | Welling | 2025 |
| Alnwick Ales Limited | Newcastle Upon Tyne | 2003 |
| Alnwick Limited | Basildon | 1997 |
| Alnwick Welding Ltd | South Shields | 2016 |
| Alnylam UK Holdings Limited | Maidenhead | 2024 |
| ALO Sugar Nutrition UK Ltd | London | 2025 |
| Alo'Nuko Ltd | London | 2012 |
| Alob Appliances Ltd | Hull | 2025 |
| Aloe Naturelle Ltd | Nottingham | 2024 |
| Alohapayaz Ltd | Manchester | 2025 |
| Alohapaygate Ltd | London | 2025 |
| Aloks Designs Limited | Basildon | 2023 |
| Alommiel Ltd | Stourbridge | 2025 |
| Alon Products Ltd | London | 2020 |
| Alooda Limited | Lincoln | 2005 |
| Alora & Alora Ltd | Crawley | 2022 |
| Alora and Co Jewellery Ltd | Preston | 2026 |
| Alore Hydration Limited | Manchester | 2024 |
| Alostora Seafood Ltd | Manchester | 2023 |
| Alota Coffee Limited | Exeter | 2024 |
| Alotek Ltd | Ormskirk | 2021 |
| Alotek Shelters Ltd | Ormskirk | 2025 |
| Alouise Limited | Sheffield | 2020 |
| Aloya Ltd | Bromley | 2026 |