| Alhambra Theatre Trust | Edinburgh | 2008 |
| ALI Kurr Ltd | Ingatestone | 2017 |
| ALI Mcnamara Limited | Chatteris | 2014 |
| ALI Shan Rupyal Tent Pegging Club Community Interest Company | Liversedge | 2022 |
| ALI Stephens Design Limited | London | 2014 |
| ALI Woods Gigs Limited | London | 2025 |
| Ali's Dance Limited | Maidstone | 2010 |
| Ali.Glam.Fitness Limited | Norwich | 2025 |
| Alia Productions Ltd | Stevenage | 2024 |
| Aliance Sports Ltd | Watford | 2022 |
| Alias Music Events Ltd | Hove | 2022 |
| Alibi Days Ltd | Southampton | 2023 |
| Alibi Events Ltd | London | 2025 |
| Alice Art Co. Limited | Southend-On-Sea | 2022 |
| Alice Bastin Limited | London | 2022 |
| Alice Beaumont Co Limited | London | 2022 |
| Alice Black Limited | London | 2016 |
| Alice Boggis-Rolfe Fine Art Limited | Cirencester | 2018 |
| Alice C L Jones Ltd | Marlow | 2024 |
| Alice Coulthard Limited | Sheffield | 2009 |
| Alice Davies Ltd | Minehead | 2025 |
| Alice Goss Ltd | London | 2022 |
| Alice House Creates Ltd | Wallingford | 2024 |
| Alice in Natureland Ltd | Marlow | 2025 |
| Alice in Wonderland Tattoo Studio Ltd | Bicester | 2020 |
| Alice Isaac Ltd | Margate | 2025 |
| Alice Jennings Fitness Ltd | Chester | 2020 |
| Alice Jordan Fitness Ltd | Chertsey | 2023 |
| Alice Kate Ltd | Leigh-On-Sea | 2026 |
| Alice L Lees Ltd | London | 2025 |
| Alice LOU Ltd | Hurst | 2022 |
| Alice Masters Art Limited | London | 2024 |
| Alice Milburn-Foster Ltd | Banbury | 2022 |
| Alice Nicholls Limited | Hornchurch | 2018 |
| Alice Normington Design Limited | London | 2015 |
| Alice Oseman Limited | 3 Dorset Rise | 2022 |
| Alice Owen Lifestyle Coaching Ltd | Shepton Mallet | 2024 |
| Alice Pescott Frost Events Limited | Ipswich | 2024 |
| Alice Powell Racing Limited | Chipping Norton | 2009 |
| Alice Rose Entertainment Ltd | Leeds | 2026 |
| Alice Roseberry-Haynes Ltd | London | 2020 |
| Alice Shirley Limited | London | 2019 |
| Alice Tait Ltd | Bristol | 2024 |
| Alice Theatre Project CIC | Shetland | 2020 |
| Alice Vincent Ltd | London | 2021 |
| Alice's Adventures Underground Limited | London | 2014 |
| Alicefit Ltd | Isleworth | 2025 |
| Alicekirkpatrickstudio Ltd | London | 2018 |
| Alicenotes Limited | London | 2007 |
| Alicia Draws Ltd | Reading | 2026 |
| Alicia Dubnyckyj Fine Art Limited | Birmingham | 2004 |
| Alicia Hawker Eventing Ltd | Chippenham | 2023 |
| Alico Exports Limited | Harrow | 1980 |
| Alidad Limited | London | 1985 |
| Alien Beauty LAB Ltd | St. Helens | 2024 |
| Alien Bloodvision Limited | Chichester | 2025 |
| Alien Trax Limited | | 1996 |
| Alien WAR Limited | Glasgow | 1992 |
| Alien Wars Entertainment Ltd | Chesham | 2024 |
| Aliens of Extraordinary Ability Ltd | London | 2019 |
| Alif Communities CIC | London | 2019 |
| Alighieri Ltd | London | 2014 |
| Aligma Group Ltd | London | 2025 |
| Align & Flow Limited | Wokingham | 2025 |
| Align & Flow Pilates Ltd | London | 2025 |
| Align & Reform Limited | Oldham | 2025 |
| Align Health & Fitness Ltd | Herne Bay | 2024 |
| Align Manchester Ltd | Stockport | 2023 |
| Align Performance Sports Ltd | Portsmouth | 2022 |
| Align Pilates Studio London Limited | Rickmansworth | 2025 |
| Align Pilates Studio Ltd | Maidstone | 2023 |
| Align Pilates With Rosie Ltd | Dundee | 2017 |
| Align With Claire Limited | Manchester | 2025 |
| Aligne Pilates Studio Ltd | Reading | 2025 |
| Aligne Wellness Studios Ltd | Loughborough | 2025 |
| Aligned Atoms Ltd | Magherafelt | 2026 |
| Aligned Performance Limited | Dorchester | 2012 |
| Aligning Cultures Ltd | Milton Keynes | 2025 |
| Aligné Reformer Studio Ltd | Stourport-On-Severn | 2025 |
| Alijack Limited | Romford | 2019 |
| Alimel North West Limited | Chester | 2015 |
| Alimentarius Limited | Hove | 2003 |
| Alimentation Limited | Suffolk | 2002 |
| Alina Levichkina-Fenn Ltd | London | 2019 |
| Alina Orchestra Limited | Bedfordshire | 2017 |
| Aline Estate Limited | Stornoway | 1992 |
| Aline Gaiad Ltd | London | 2026 |
| Alinea 2025 Limited | Altrincham | 2025 |
| Alineapart Ltd | Alton | 2020 |
| Aliona Baranova Ltd | Dartford | 2024 |
| Aliquant and Co Limited | Aylesbury | 2015 |
| Alis Dojang Ltd | Harrow | 2016 |
| Alis Richardson Fitness Ltd | Tunbridge Wells | 2022 |
| Alisha-Jayne Dance Academy Ltd | Shrewsbury | 2024 |
| Alison Garlick Equestrian Limited | Aldbury | 2021 |
| Alison Hammond Ltd | Bridport | 2014 |
| Alison Johnson Artist Limited | Kenilworth | 2021 |
| Alison Mcwhirter Ltd | Dumfries | 2017 |
| Alison RAY Dance Company Ltd | Dunstable | 2017 |
| Alison Roberts Limited | Ruislip | 2003 |