| Amberside Ltd | Hemel Hempstead | 2022 |
| Amberside Management Solutions Ltd | Hemel Hempstead | 2017 |
| Amberside Nominees Ltd | Berkhamsted | 2018 |
| Amberside Technology Ltd | Hemel Hempstead | 2017 |
| Amberside Valuations Ltd | Berkhamsted | 2018 |
| Amberskye Designs Limited | Letchworth Garden City | 2024 |
| Ambersouth Limited | London | 2007 |
| Amberstar Landscapes Ltd | Barnsley | 2025 |
| Amberstone Design Limited | Chester Le Street | 2025 |
| Amberstone Enterprises Limited | Fleckney | 2009 |
| Amberstone Innovation Ltd | Stamford | 2025 |
| Amberstone Investments Ltd | Manchester | 2000 |
| Amberstone Limited | Glasgow | 2014 |
| Amberstone Surveying Limited | London | 2012 |
| Amberstride Limited | York | 2011 |
| Ambertree Management Ltd | London | 2024 |
| Amberwest Limited | Redditch | 2002 |
| Amberwood Advisory Services Ltd | Bedford | 2025 |
| Amberwood Associates Limited | Fleet | 2005 |
| Amberwood Group Ltd | New Malden | 2024 |
| Amberwood Investments Limited | Epsom | 2021 |
| Amberwrite Ltd | Leeds | 2012 |
| Amber’S Home Luxury Designs Limited | Barnsley | 2024 |
| Ambesi Limited | Thames Ditton | 2021 |
| Ambetus Ltd | Farnham | 2015 |
| Ambh Holdings Limited | Tadcaster | 2024 |
| Ambi London Ltd | Hounslow | 2024 |
| Ambia Corporation Limited | London | 2014 |
| Ambiance (Accountants) Limited | Sheffield | 2020 |
| Ambiance Developments Ltd | Thame | 2014 |
| Ambiarc Ltd | Manchester | 2026 |
| Ambice Group Ltd | Chalfont St. Giles | 2024 |
| Ambicon Limited | Chislehurst | 2018 |
| Ambicool (Wigan) Limited | Wigan | 2000 |
| Ambicosm Design Ltd | Newcastle Upon Tyne | 2023 |
| Ambidextrous Design Limited | Middlesex | 2017 |
| Ambidextrous Limited | London | 2010 |
| Ambidoo Ltd | London | 2018 |
| Ambidrive Ltd | London | 2023 |
| Ambiem Limited | London | 2024 |
| Ambience Engineering Limited | Leeds | 2010 |
| Ambience Kingston Ltd | Swansea | 2022 |
| Ambience Lighting Solutions Ltd | London | 2025 |
| Ambience Lincolnshire Ltd | Market Rasen | 2022 |
| Ambient Accounting Ltd | Manchester | 2017 |
| Ambient Air Conditioning Holdings Limited | Wolverhampton | 2009 |
| Ambient Assisted Living Limited | Chesham | 2011 |
| Ambient Associates Limited | Chichester | 2004 |
| Ambient Building Services Limited | Chelmsford | 2008 |
| Ambient Coaching Limited | London | 2020 |
| Ambient Communications Limited | London | 2003 |
| Ambient Concept Limited | Bishop'S Stortford | 2008 |
| Ambient Creative Services Ltd | County Durham | 2000 |
| Ambient Digital Ltd | London | 2014 |
| Ambient Forge Limited | Morden | 2021 |
| Ambient Holdings UK Limited | Chelmsford | 2007 |
| Ambient Igloo Limited | London | 2024 |
| Ambient Labs Ltd | Ruislip, | 2026 |
| Ambient Media Worldwide Ltd | Hammersmith | 2002 |
| Ambient Power Industries Ltd | Luton | 2022 |
| Ambient Production Services Limited | Milton Keynes | 2023 |
| Ambient Studio Ltd | London | 2020 |
| Ambient Tone Limited | Stowmarket | 2018 |
| Ambient Tribe Ltd. | Brighouse | 2003 |
| Ambient X Ltd | London | 2020 |
| Ambiental Advisor Ltd | Croydon | 2025 |
| Ambiental Environmental Assessment Limited | Peterborough | 2016 |
| Ambiental Technical Solutions Limited | Peterborough | 2002 |
| Ambiente Group UK Ltd | London | 2018 |
| Ambiente-I Limited | Nelson | 2006 |
| Ambientec Limited | Worthing | 2018 |
| Ambiento Ltd | Sutton | 2023 |
| Ambigram Architects Limited | London | 2014 |
| Ambigram Consulting Ltd | Cambridge | 2022 |
| Ambigraph Signs Ltd | Romford | 2019 |
| Ambillou Limited | London | 2010 |
| Ambio Limited | London | 1996 |
| Ambio Solutions Ltd | Irvine | 2019 |
| Ambiolabs Ltd | Liverpool | 2021 |
| Ambion Commercial Limited | Glasgow | 1991 |
| Ambion Consultants Limited | Bicester | 1995 |
| Ambion Limited | Glasgow | 1991 |
| Ambion Services Limited | Bicester | 1999 |
| Ambire Advisory Limited | Barry | 2025 |
| Ambis Consulting Limited | Pinner | 2026 |
| Ambisaw Limited | Rickmansworth | 2013 |
| Ambishun Consulting Limited | Lowestoft | 2020 |
| Ambisie Limited | Stockport | 2015 |
| Ambit Architectural Design Ltd | Stockport | 2010 |
| Ambit Group Limited | Saxmundham | 2006 |
| Ambit Limited | Saxmundham | 2007 |
| Ambit Marketing Limited | Saxmundham | 2005 |
| Ambit ND Limited | Crediton | 2018 |
| Ambit Solutions Limited | London | 2026 |
| Ambit Strategy Ltd. | London | 2020 |
| Ambit Surveys Ltd | London | 2021 |
| Ambition Acquisition Limited | Reading | 2023 |
| Ambition Brand Support Ltd. | Stowmarket | 2005 |
| Ambition Consultancy Ltd | Birmingham | 2024 |
| Ambition Ltd | London | 2020 |