| Ambition Management Holdings Limited | Nottingham | 1999 |
| Ambition Plus Ltd | Faversham | 2010 |
| Ambition Public Relations Limited | Norwich | 2019 |
| Ambition Solutions Limited | Fleetwood | 2002 |
| Ambition Visa World Limited | London | 2013 |
| Ambitionabm Ltd | Newbury | 2010 |
| Ambitioned Ltd | Brentford | 2023 |
| Ambitions Web Ltd | Exeter | 2024 |
| Ambitious Creative Ltd | Deeside | 2013 |
| Ambitious Futures Limited | Nottingham | 2015 |
| Ambitious Humans Ltd | London | 2023 |
| Ambitious Humans Ventures Limited | Edinburgh | 2026 |
| Ambitious Ladies of London Ltd | London | 2025 |
| Ambitious Packaging Ltd | Glasgow | 2021 |
| Ambito Partners Ltd | Huntingdon | 2020 |
| Ambivent Group Limited | Northampton | 2016 |
| Ambivent Properties Limited | Northampton | 2016 |
| Ambivert Digital Ltd | Bedford | 2024 |
| Ambivon Ltd | London | 2026 |
| Ambiz Ltd | London | 2009 |
| Amble and Sonder Limited | Hartlepool | 2022 |
| Amble Holdings Limited | Greater London | 2016 |
| Amblecroft Limited | Peterborough | 1988 |
| Ambledene Limited | Preston | 2013 |
| Ambleglow Holdings Limited | Eastleigh | 2008 |
| Ambleglow Limited | Eastleigh | 1981 |
| Amblers Mill Limited | Retford | 2010 |
| Ambleside 1976 Limited | Birmingham | 2021 |
| Ambleside Animal Clinic Limited | Worcestershire | 2000 |
| Ambleside Consulting Limited | Loughton | 2006 |
| Ambleside Property Holdings Limited | Newtownards | 2021 |
| Ambleside Services Ltd | Walton-On-Thames | 2009 |
| Amblestowe Limited | Wisborough Green | 2017 |
| Amblr Studio Ltd | Bristol | 2024 |
| Ambly Accountants Ltd | Stoneleigh | 2016 |
| Ambo Ltd | Doncaster | 2002 |
| Ambonnay MS Limited | London | 2023 |
| Amborella Group Limited | London | 2018 |
| Ambr Consultancy Ltd | Sheffield | 2025 |
| Ambr Consulting Limited | Chester Le Street | 2016 |
| Ambr Corporation Limited | Bath | 2020 |
| Ambr Ltd | Hertford | 2020 |
| Ambra Grove Limited | Uckfield | 2025 |
| Ambrad Consulting Ltd | Hereford | 2024 |
| Ambrafund Advisers Limited | East Sussex | 2000 |
| Ambrconnect Limited | Stockport | 2026 |
| Ambre Consulting Limited | Heskin | 2008 |
| Ambreen Consultancy Limited | Isleworth | 2025 |
| Ambrelia for Ever Ltd | London | 2025 |
| Ambresbury Consulting Limited | Norwich | 2025 |
| Ambrey Analytics Limited | Hereford | 2023 |
| Ambrey Archaeology Ltd | Leominster | 2022 |
| Ambrey International Limited | Hereford | 2016 |
| Ambrey Risk Limited | Hereford | 2010 |
| Ambridge Capital Nominees (Mara) Limited | London | 2025 |
| Ambridge Knight Limited | London | 2024 |
| Ambridger Design Ltd | London | 2022 |
| Ambro Consulting Limited | London | 2009 |
| Ambro Photography Ltd | Sheffield | 2023 |
| Ambrook Consulting Limited | London | 2026 |
| Ambrosas Limited | Norwich | 2024 |
| Ambrose & Co Accounting Solutions Ltd | Middlesbrough | 2019 |
| Ambrose and Ambrose Ltd | Brighton | 2021 |
| Ambrose and Bell Limited | London | 2022 |
| Ambrose and Rose Ltd | North Walsham | 2022 |
| Ambrose and Sons Ltd | Maldon | 2024 |
| Ambrose Associates Taxation Services Limited | Bexleyheath | 2004 |
| Ambrose Bacchus Limited | Southampton | 2018 |
| Ambrose Builders Limited | Coalville | 1975 |
| Ambrose Business Services Ltd | Sherborne | 2018 |
| Ambrose Consultancy Limited | Broughty Ferry | 2022 |
| Ambrose Consulting Limited | Dorchester | 1993 |
| Ambrose Creative Ltd | Dunmow | 2014 |
| Ambrose Design Services Limited | Haywards Heath | 1997 |
| Ambrose Financial Consultancy Limited | Wigan | 2022 |
| Ambrose Healthcare (Holdings) Ltd | Cambridge | 2023 |
| Ambrose Healthcare Ltd | Cambridge | 2022 |
| Ambrose House Business Centre Limited | | 1996 |
| Ambrose Mccallum Architects Limited | London | 2008 |
| Ambrose NDT Consulting Ltd | London | 2022 |
| Ambrose Oaks Ltd | Mildenhall | 2022 |
| Ambrose Park PUB Company Limited | Hyde | 2026 |
| Ambrose Property Consultancy Limited | Grays | 2011 |
| Ambrose Solutions Ltd | Knebworth | 2018 |
| Ambrose Studio Ltd | London | 2023 |
| Ambrose Wilson Limited | Manchester | 1916 |
| Ambrose, Went, Curtis Limited | Clacton-On-Sea | 1991 |
| Ambrosetti Group Limited | London | 1988 |
| Ambrosia Capital Ltd | London | 2012 |
| Ambrosia Management Services Limited | Liverpool | 2009 |
| Ambrosini & Co Architecture & Design Ltd | Canterbury | 2026 |
| Ambroxtershire Ltd | Peterborough | 2025 |
| Ambroze Services Ltd | London | 2020 |
| Ambruch Ltd | Bournemouth | 2025 |
| Ambs 1 Limited | Edinburgh | 2005 |
| Ambs Architects Limited | London | 2022 |
| Ambt Packaging Limited | Formby | 2020 |
| Ambuc Limited | Glasgow | 2013 |
| Ambulance & Funeral Equipment Testing Ltd | Dudley | 2019 |
| Ambulance IQ Ltd | Newport | 2025 |