| Amber Finance Limited | Southend-On-Sea | 2007 |
| Amber Financial Advice Limited | Dudley | 2014 |
| Amber Financial Investments Limited | Bath | 2011 |
| Amber Financial Solutions Limited | Rotherham | 2025 |
| Amber Finco PLC | London | 2023 |
| Amber Ggwf FP Limited | London | 2025 |
| Amber Ggwf GP Limited | London | 2025 |
| Amber Group Holdings Limited | Chesterfield | 2017 |
| Amber Holdco Limited | London | 2023 |
| Amber Holdings Investments Ltd | Holsworthy | 2025 |
| Amber Holdings Rothley Limited | Quorn | 2021 |
| Amber House Holdings Ltd | London | 2026 |
| Amber IFA Company Limited | Wilmslow | 2013 |
| Amber Infrastructure Group Holdings Limited | London | 2015 |
| Amber Infrastructure Jvco Limited | London | 2025 |
| Amber Infrastructure LA Limited | London | 2017 |
| Amber Insurance Management Ltd | Leicester | 1993 |
| Amber Investment Partners Limited | London | 2021 |
| Amber Investments (1930) Limited | Leicester | 2023 |
| Amber Jvco II Limited | London | 2024 |
| Amber Jvco Limited | London | 2023 |
| Amber Labs Holdings Limited | London | 2025 |
| Amber Lake Holdings Limited | Cardiff | 2024 |
| Amber Landscaping Ltd | Orpington | 2021 |
| Amber Lark Limited | Wilden | 2015 |
| Amber Lily Limited | Maidstone | 2021 |
| Amber Loans Limited | Telford | 2026 |
| Amber Midco 1 Limited | London | 2023 |
| Amber Mortgage Solutions Limited | Hertford | 2007 |
| Amber Newco Limited | London | 2022 |
| Amber Ntca Green New Deal FP Ltd | London | 2021 |
| Amber Ntca Green New Deal GP Ltd | London | 2021 |
| Amber Overage Limited | Durham | 2018 |
| Amber Residential Properties Holdings Limited | Birmingham | 2024 |
| Amber Retirement Living Limited | London | 2017 |
| Amber River Chancery Ltd | London | 2001 |
| Amber River Group Limited | London | 2019 |
| Amber Rose Holdings Ltd | Leeds | 2024 |
| Amber Rose Homes Limited | Warrington | 2020 |
| Amber Shield Finance Ltd | Newport | 2024 |
| Amber Shore Consulting Ltd | London | 2019 |
| Amber Solar Energy Holdings Limited | London | 2014 |
| Amber Spring Partner Limited | London | 2019 |
| Amber Star Holdings Limited | Ipswich | 2021 |
| Amber Treasure Holdings Limited | Bromsgrove | 2015 |
| Amber US Investments Holdings Limited | London | 2017 |
| Amber Wealth Creation Limited | Long Hanborough | 2003 |
| Amber Wealth Limited | Ilford | 2013 |
| Amber Wealth Management Limited | Southend-On-Sea | 2025 |
| Amberbay Operations Ltd | Surbiton | 2011 |
| Amberclear Limited | Market Harborough | 1998 |
| Amberdee Investments Ltd | Rugby | 2026 |
| Ambergate UK Limited | Leeds | 2008 |
| Ambergris Ventures Ltd | Wilmslow, | 2022 |
| Amberleigh Trustee Limited | Welshpool | 2024 |
| Amberley Capital Limited | Derby | 2020 |
| Amberley Financial Services Limited | Clevedon | 2020 |
| Amberley Group Holdings Limited | Bolton | 2025 |
| Amberley Hulme Wealth Management Limited | Hove | 2018 |
| Amberlode Limited | Bradford | 2020 |
| Amberon Limited | Milton Keynes | 2024 |
| Ambers Analytics Ltd | Plymouth | 2014 |
| Amberside 2012 Limited | London | 1997 |
| Amberside ALP Limited | Wilmslow | 2017 |
| Amberside Capital Ltd | Berkhamsted | 2015 |
| Amberside Holdings Ltd | Berkhamsted | 2022 |
| Amberside Valuations Holdings Ltd | Berkhamsted | 2022 |
| Amberskye Investments Limited | Edinburgh | 2024 |
| Ambersmart Limited | Bracknell | 2002 |
| Ambersmith Wealth Consultancy Ltd | Kings Hill | 2018 |
| Amberstone Financial Planning Limited | Exeter | 2024 |
| Amberstone Holding Company Limited | Sudbury | 2021 |
| Amberstone Sterling Holdings Limited | Northampton | 2025 |
| Ambertina Capital Limited | Sheffield | 2025 |
| Amberview Investments Limited | | 1965 |
| Amberwood Mortgages Ltd | London | 2021 |
| Ambery Ltd | Atherton | 2026 |
| Ambex Group Limited | Bromsgrove | 1994 |
| Ambiance Holdings Limited | Coventry | 2019 |
| Ambianna Ltd | Oldham | 2025 |
| Ambidect Holdings Ltd | Congleton | 2024 |
| Ambient Energy Holdings Ltd | London | 2026 |
| Ambient Group Limited | Wolverhampton | 2017 |
| Ambient Technical Holdings Limited | Huddersfield | 2026 |
| Ambienta Ltd | London | 2022 |
| Ambienza Limited | London | 2025 |
| Ambikay Limited | Preston | 2022 |
| Ambio Capital Limited | Worthing | 2019 |
| Ambipar Holdings (UK) Limited | London | 2020 |
| Ambit Assets Ltd | Suffolk | 2006 |
| Ambition Financial Planning Ltd | Poole | 2021 |
| Ambition Investments Ltd | Hoddesdon | 2019 |
| Ambitions First Group Ltd | Nottingham | 2025 |
| Ambitious Badger Limited | Liphook | 2021 |
| Ambix Holdings Limited | Edinburgh | 2026 |
| Amblecote Holdings Ltd | Stourbridge | 2017 |
| Ambler Blackburn Financial Planning Ltd | Lancaster | 2014 |
| Ambler Blackburn Limited | Lancaster | 2010 |
| Ambler Financial Services Ltd | Castleford | 2024 |
| Ambleside Holdings Limited | Peterborough | 2016 |