| Associated Printing (Carn) Limited | London | 2018 |
| Associated Property Solutions Ltd. | Great Yarmouth | 2016 |
| Associated Trading Limited | London | 2018 |
| Associated Tyre Specialists (Investment) Limited | Birmingham | 1990 |
| Associated Wellbeing Holdings Limited | Porthcawl | 2025 |
| Associated Wellbeing Property Holdings Limited | Porthcawl | 2025 |
| Assore International Holdings Limited | Winchester | 2020 |
| Assp Group Limited | Malton | 2024 |
| Assp Holdings Limited | West Midlands | 2004 |
| Assum Limited | Chester | 2022 |
| Assur Capital Partners Limited | Dartford | 2023 |
| Assur Expert Ltd | London | 2023 |
| Assur Holdings Ltd | Reading | 2026 |
| Assura Financing PLC | Altrincham | 2016 |
| Assura IH Limited | Altrincham | 2015 |
| Assura Limited | Altrincham | 2014 |
| Assura Protect Limited | Borehamwood | 2013 |
| Assura Services Limited | Altrincham | 2003 |
| Assurance Group Limited | Banchory | 2021 |
| Assurance Universelle Courtiers Ltd | London | 1997 |
| Assurant Direct Limited | Crewe | 2005 |
| Assurant General Insurance Limited | Crewe | 1989 |
| Assurant Intermediary Limited | Crewe | 2000 |
| Assuranty Nationwide Limited | Market Harborough | 2010 |
| Assure Capital Ltd | Southport | 2022 |
| Assure Commercial Finance Ltd | Shipley | 2017 |
| Assure Corporate Holdings Ltd | Oldham | 2024 |
| Assure Financial Services Limited | Harrow | 2020 |
| Assure Group Holdings Limited | Malvern | 2012 |
| Assure Holdings Group Limited | Birmingham | 2025 |
| Assure Home Claims Limited | Glasgow | 2025 |
| Assure Insolvency Ltd | Oldham | 2025 |
| Assure Mortgages Limited | Yateley | 2012 |
| Assure Secure Protect Ltd | Chesterfield | 2012 |
| Assure Today Limited | Chertsey | 2019 |
| Assure Wealth Management Ltd | Chessington | 2014 |
| Assure-U International Ltd | Colchester | 2019 |
| Assure-U Ltd | Colchester | 2006 |
| Assurebio Group Ltd | London | 2024 |
| Assured Bidco Limited | Leeds | 2024 |
| Assured Claims Limited | Manchester | 2022 |
| Assured Cover Ltd | Liverpool | 2018 |
| Assured Cyber Ltd | London | 2021 |
| Assured Cyber Solutions Ltd | London | 2022 |
| Assured Direct Homeloans Ltd | Newton Abbot | 2006 |
| Assured Docs Limited | Manchester | 2017 |
| Assured Equity Finance Ltd | Rotherham | 2020 |
| Assured FG Ltd | Matlock | 2020 |
| Assured Finance Limited | Manchester | 2020 |
| Assured Financial Consultancy Ltd | Birmingham | 2021 |
| Assured Financial Group Ltd | Fleet | 2019 |
| Assured Financial Planning Limited | Harrogate | 2016 |
| Assured Financial Resources Ltd | Chessington | 2006 |
| Assured Financial Services Ltd | Liverpool | 2005 |
| Assured Financial Solutions UK Ltd | Nottinghamshire | 2004 |
| Assured Financing Ltd | Feltham | 2025 |
| Assured Fire Safety Consultancy Limited | Fleet | 2019 |
| Assured First Limited | Glasgow | 2020 |
| Assured Funding Ltd | Colchester | 2011 |
| Assured Guaranty (UK) Services Limited | London | 2004 |
| Assured Guaranty Credit Protection Ltd. | London | 2003 |
| Assured Guaranty Finance Overseas Ltd. | London | 2000 |
| Assured Guaranty UK Holdings Ltd | London | 2020 |
| Assured Guaranty UK Limited | London | 1990 |
| Assured Health Limited | Grimsby | 2003 |
| Assured Healthcare Solutions Holdings Ltd | Tamworth | 2024 |
| Assured Independent Financial Services Limited | Portsmouth | 2009 |
| Assured Inheritance Ltd | Nelson | 2015 |
| Assured Life (UK) Ltd. | London | 2014 |
| Assured Midco 1 Limited | Leeds | 2024 |
| Assured Midco 2 Limited | Leeds | 2024 |
| Assured Mortgage Advice Limited | St. Neots | 2012 |
| Assured Mortgage Services Ltd | Leicester | 2019 |
| Assured Motor Assessing Ltd | Kington | 2026 |
| Assured PAY Ltd | Ipswich | 2020 |
| Assured Pensions & Investments Ltd | Scarborough | 2019 |
| Assured Private Wealth Ltd | Lyndhurst | 2013 |
| Assured Products Trustees Limited | Ashtead | 2025 |
| Assured Referrals Limited | Rochdale | 2013 |
| Assured Retirement Limited | Bristol | 2014 |
| Assured Review Ltd | Manchester | 2013 |
| Assured Securities Limited | Ashton-Under-Lyne | 2024 |
| Assured Topco Limited | Leeds | 2024 |
| Assured Trade Limited | London | 2021 |
| Assured Underwriting Group Limited | London | 2018 |
| Assured Vehicle Rental (Holdings) Limited | Telford | 2016 |
| Assured Wealth Management Limited | Swindon | 2019 |
| Assured Wills and Probate Ltd | | 2002 |
| Assuredpartners International Limited | London | 2012 |
| Assuredpartners London Limited | London | 2001 |
| Assuredpartners Regions Ltd | Birmingham | 2003 |
| Assurelife Ltd | Hull | 2011 |
| Assurex Global London Holding Limited | London | 2026 |
| Assurex Global London Limited | London | 2025 |
| Assurity Consulting Holdings Limited | Horsham | 2016 |
| Assurity Solutions Ltd | Bristol | 2010 |
| Assystem Capital UK Limited | Bolton | 2025 |
| Assystem Holding UK Limited | Bolton | 2024 |
| AST Private Enterprise Ltd | Kington | 2016 |
| AST Resources Limited | Cobham | 2025 |