HIH Insurance was Australia's second largest insurance company. It was placed into provisional liquidation on 15 March 2001. The demise of HIH is considered to be the largest corporate collapse in Australia's history, with liquidators estimating that HIH's losses totalled up to $5.3 billion. Investigations into the cause of the collapse have led to conviction and imprisonment of a handful of members of HIH management on various charges relating to fraud.
HIH Insurance was founded in 1968 by Ray Williams and Michael Payne. Known as "M W Payne Underwriting Agency Pty Ltd", it was acquired in 1971 by British company CE Heath PLC. Ray Williams was appointed to the board of CE Heath in 1980. The business operations of CE Heath were subsequently transferred to "CE Heath International Holdings Ltd" in 1989 with CE Heath PLC retaining 90% ownership of CE Heath International Holdings. In 1992, CE Heath International Holdings floated on the Australian Stock Exchange.
In 1995, CE Heath International Holdings acquired CIC Insurance Group. The remaining 48% holding that CE Heath PLC maintained in CE Heath International Holdings was sold to a subsidiary of CIC Insurance Group called CIC Holdings Limited. CIC Holdings increased its share in CE Heath International Holdings to 50% and CIC Holdings was purchased by Winterthur Swiss Insurance Company (Winterthur Swiss). In May 1996, CE Heath International Holdings changed its name to HIH Winterthur.