| Amaxim Consulting Ltd | Tring | 2016 |
| Amaxus IT Ltd | Essex | 2013 |
| Amay RAM Limited | London | 2014 |
| Amaya Services Limited | Kingston Upon Thames | 2020 |
| Amaya Solutions Limited | Bournemouth | 2011 |
| Amaya Technology Ltd | Derby | 2023 |
| Amaya Valentina Ltd | London | 2018 |
| Amayah Warsame & Co Limited | London | 2021 |
| Amayzin Productions Limited | London | 2011 |
| Amaze Brighton and Hove | East Sussex | 1999 |
| Amaze Games Ltd | Bath | 2024 |
| Amaze Impacts Limited | Luton | 2025 |
| Amaze Media Limited | London | 2023 |
| Amaze Media Pro Ltd | London | 2024 |
| Amaze Technologies Limited | London | 2025 |
| Amazecard Limited | Doncaster | 2026 |
| Amazecraft Limited | London | 2024 |
| Amazeme UK Ltd | Romford | 2020 |
| Amazement Machines Limited | Bath | 2020 |
| Amazesys Solutions Limited | Slough | 2024 |
| Amazigh Ventures Limited | Bath | 2020 |
| Amazin Limited | London | 2017 |
| Amazing Advisory Limited | Burton On Trent | 2026 |
| Amazing Arts Limited | London | 2008 |
| Amazing Capitals Ltd | London | 2022 |
| Amazing Consultancy Services Limited | London | 2017 |
| Amazing Country Limited | London | 2025 |
| Amazing Feet Limited | Oxford | 1993 |
| Amazing Grace Films Limited | | 2004 |
| Amazing Grace Records Limited | London | 2001 |
| Amazing History Enterprises Limited | Hornchurch | 2020 |
| Amazing Interactives Limited | Stockton-On-Tees | 2004 |
| Amazing Internet Limited | Middlesex | 2000 |
| Amazing IOT Systems Limited | Doncaster | 2022 |
| Amazing IT Ltd | Colyton | 2020 |
| Amazing Learning Limited | Gateshead | 2000 |
| Amazing Limited | London | 2022 |
| Amazing Maurice 2 Productions Limited | Eastbourne | 2024 |
| Amazing People Limited | Watford | 2014 |
| Amazing Productions Limited | Hastings | 2014 |
| Amazing Squirrel Ltd | London | 2009 |
| Amazing Steps Ventures Ltd | Reading | 2011 |
| Amazing Success Group Ltd | Blackpool | 2018 |
| Amazing Technology Products & Services (Atps) Ltd | London | 2020 |
| Amazing TV Limited | London | 2025 |
| Amazingict Limited | Telford | 2016 |
| Amazingmedia Marketing Services Limited | Steeple Aston | 2015 |
| Amazingphil Limited | London | 2014 |
| Amazingtech Ltd | Wednesbury | 2025 |
| Amazon Artists Agency Limited | London | 2009 |
| Amazon Development Centre (Scotland) Limited | Edinburgh | 2004 |
| Amazon Digital UK Limited | London | 2008 |
| Amazon Films Ltd | Penryn | 2018 |
| Amazon Formula Ltd | London | 2025 |
| Amazon Kindle Publishing Network Ltd | London | 2025 |
| Amazon Kuiper UK Limited | London | 2013 |
| Amazon Music Limited | London | 1999 |
| Amazon Publishing Limited | Twickenham | 2009 |
| Amazon Records Limited | London | 1999 |
| Amazon Recovery Agency Ltd | London | 2025 |
| Amazon Self Publication Ltd | London | 2025 |
| Amazon Seller Agency Ltd | London | 2025 |
| Amazonialerta CIC | London | 2020 |
| Amazonian Music Publishing Ltd. | Sudbury | 1995 |
| Amazonox AI Ltd | London | 2024 |
| Amazora Solutions Ltd | London | 2026 |
| Amaztech Solutions Limited | Morden | 2011 |
| Amazula Ltd | London | 2013 |
| AMB Business and Technology Ltd | Greater London | 2023 |
| AMB Business Consultants Limited | London | 2013 |
| AMB Data Solutions Limited | Harrow | 2012 |
| AMB Findev Limited | London | 2026 |
| AMB Global Limited | Essex | 2007 |
| AMB Media Ltd | Rotherham | 2025 |
| AMB News Limited | Birmingham | 2022 |
| AMB Productions Ltd | Ivybridge | 2011 |
| AMB Solutions Limited | Burton-On-Trent | 2007 |
| AMB Telecoms Ltd | Bromsgrove | 2007 |
| AMB Web Solutions Ltd | Peterborough | 2022 |
| Amba Health and Care Limited | London | 2020 |
| Amba People Limited | London | 2001 |
| Amba Solution Ltd | Coventry | 2022 |
| Amba-Qual Group Limited | Glasgow | 2025 |
| Ambacelar Ltd | Enfield | 2022 |
| Ambadi Tech Consultancy Services Ltd | Sidcup | 2019 |
| Ambala IT Limited | Barking | 2024 |
| Ambali Ltd | Manchester | 2019 |
| Ambanja Pictures Limited | Wokingham | 2011 |
| Ambar Dhesi Events CIC | Washington | 2025 |
| Ambar Solutions Ltd | Bolton | 2022 |
| AMBAR2GROUP Limited | Dunstable | 2017 |
| Ambas Group Ltd | London | 2025 |
| Ambasada Films Ltd | London | 2020 |
| Ambasense Ltd | Northallerton | 2017 |
| Ambasoft UK Ltd | Northallerton | 2015 |
| Ambasol Limited | Ripley | 2005 |
| Ambasonic Ltd | Walsall | 2019 |
| Ambassador Business & Computers Limited | Chester | 1985 |
| Ambassador Cars Ltd | London | 2000 |
| Ambassador Films Ltd | Hove | 2025 |