2010 ACE Celebrates its 25th Anniversary.

2009 ACE European Group opens office in Turkey.

2008 ACE expands its ability to provide supplemental accident & health and life & disability insurance with its purchase of Combined Insurance Company of America for $2.56 billion.
ACE Limited announces the re-domestication of the holding company from the Cayman Islands to Switzerland, establishing a corporate holding company office in Zurich.

2007 ACE launches new Swiss company, ACE Insurance Switzerland Limited.

2005 ACE receives regulatory approvals to begin providing commercial property and casualty insurance in Poland and Russia.

2002 ACE European Group opens its new headquarters in London.

2001 ACE opens its new global headquarters in Hamilton, Bermuda.

1999 ACE acquires the global property and casualty business of CIGNA Corporation for $3.5 billion, making ACE one of only a handful of truly international property and casualty insurance companies. With this acquisition, ACE inherits the rich history of the pioneering Insurance Company of North America (INA), which wrote its first policy in 1792.

1998 ACE Global Markets is formed in London from ACE’s existing operations at Lloyd's. ACE Global Markets acquires Lloyd’s based Tarquin Limited.

1996 ACE acquires London-based Lloyd's managing agency Ockham Worldwide and the balance of Methuen Underwriting.

1993 ACE Limited successfully completes its initial public offering and is authorised for listing and trading on the New York Stock Exchange

1985 ACE Bermuda writes its first official insurance policy.
ACE Limited and its Bermuda insurance subsidiary are incorporated in the Cayman Islands and establish headquarters in Hamilton, Bermuda.

ACE was established by a consortium of 34 Fortune 500 companies to provide hard-to-find excess liability and directors and officers liability insurance.

United Kingdom history

1983 CIGNA acquired Crusader Insurance plc

1982 CIGNA formed from the merger between Connecticut General and INA Corporations.

1930 INA opened an international office in 37 Lime Street, London.

1922 Two underwriting managers agreed to act for INA in the marine market in London.

1899 Mutual Property Recovery and Accident Company, later to become Crusader Insurance, was formed in Scotland

1887 INA employed an agent in London who, during the course of the next ten years supervised the establishment of agencies in Birmingham, Manchester, Liverpool, Bristol, Dublin and Belfast.

1794 Two people from Philadelphia, who had entered business in England, were appointed settling agents before the High Court of Admiralty sitting in London.