Aon Corporation was created in 1982 when the Ryan Insurance Group merged with the Combined Insurance Company of America.
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Aon Corporation was created in 1982 when the Ryan Insurance Group merged with the Combined Insurance Company of America.
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Aon Corporation is headquartered in the UK and incorporated in Ireland, with its listing based in the US.
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Aon Corporation continued through the 1950s and 1960s, continuing to sell health and accident policies.
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Aon Corporation trimmed staff and took other cost-cutting measures, and in 1987 he changed Combined's name to Aon.
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Also that year, Endurance Specialty, a Bermuda-based underwriting operation that Aon Corporation helped to establish in November 2001 along with other investors, went public.
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In late 2007, Aon Corporation announced the divestiture of its underwriting business.
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In 2010, Aon Corporation made its most significant acquisition to date with the purchase of Hewitt Associates for $4.
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On 10 February 2017, Aon Corporation announced that it was selling its employee benefits outsourcing business to private equity firm The Blackstone Group for US$4.
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In February 2020, Aon Corporation named Eric Andersen as president of Aon Corporation after co-president Michael O'Connor departed the company to pursue new opportunities.
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Aon Corporation said its conduct was not deliberate, adding it had since "significantly strengthened and enhanced its controls around the usage of third parties".
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On 5 January 2007, Aon Corporation announced that its Aon Corporation Affinity group had acquired the WedSafe Wedding Insurance program.
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On 22 August 2008, Aon Corporation announced that it had acquired London-based Benfield Group.
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On 12 July 2010, Aon Corporation announced that it had agreed to buy Lincolnshire, Illinois-based Hewitt Associates for $4.
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On 7 April 2011, Aon Corporation announced that it had acquired Johannesburg, South Africa-based Glenrand MIB.
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On 22 October 2012, Aon Corporation announced that it agreed to buy OmniPoint, Inc, a Workday consulting firm.
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On 14 November 2016, Aon Corporation acquired CoCubes an online Indian Assessment firm, facilitating hiring of entry-level engineering graduates.
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On 10 February 2017, Aon Corporation plc agreed to sell its human resources outsourcing platform for US$4.
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In September 2017, Aon Corporation announced its intent to purchase real estate investment management firm The Townsend Group from Colony NorthStar for $475 million, expanding Aon Corporation's property investment management portfolio.
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On 9 March 2020, Aon Corporation announced its merger with Willis Towers Watson for nearly $30 billion in an all-stock deal that creates the world's largest insurance broker.
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On 3 June 2009, it was reported that Aon Corporation had signed a four-year shirt sponsorship deal with English football giant Manchester United.
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On 1 June 2010, Aon Corporation replaced American insurance company AIG as the principal sponsor of the club.
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