Aon Corp.

Categories: News | Companies
    • Stock symbol: NYSE: AOC
    • Annual revenue (2007): $7,471 million US
    • Founder(s): W. Clement Stone and Pat Ryan
    • Year Established: 1919
    • Industry: Reinsurance & Management consulting
    • HQ: Chicago, Illinois
    • Chairman: Pat Ryan
    • Staff: 42,500
    • Products: Insurance, Risk management, Human resource consulting
  • Aon Corp., founded in 1919, is the world's second largest insurance brokerage and the leading reinsurance broker. The company operates in three major segments: commercial brokerage, consulting services and consumer insurance underwriting.
  • Key Dates

    1. 1919: W. Clement Stone founded Combined International Corporation
    2. 1960s: Pat Ryan founded Ryan Insurance Group
    3. 1982: Ryan Insurance Group and Combined International Corporation merged
    4. 2000: Bought Reliance Group's accident and health insurance business
    5. September 11, 2001: 175 employees were killed during the collapse of the World Trade Center's south tower
    6. 2004-2005: Investigated by Eliot Spitzer
    7. 2007: Ranked as the second largest insurance broker in the world

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