Aon plc is a British multinational corporation headquartered in London, United Kingdom, that provides risk management services, insurance and reinsurance brokerage, human capital and management consulting.

Aon is the largest reinsurance broker in the world.

, Aon is the principal sponsor of the Premier League team Manchester United.

Aon is a global provider of insurance and reinsurance brokerage services, insurance products, risk and insurance advice, web-based risk management information systems, as well as other consulting services.

The Aon logo is prominently displayed on the front of the club's new shirts.

It is currently the fourth-tallest building in Chicago and the sixth-tallest in the United States, after the Willis Tower, the Empire State Building, the Bank of America Tower, the Trump Tower Chicago, and the Aon Center.

The Aon Center ( 200 East Randolph Street, formerly Amoco Building ) is a modern skyscraper in the Chicago Loop, Chicago, Illinois, United States, designed by architect firms Edward Durell Stone and The Perkins and Will partnership, and completed in 1974 as the Standard Oil Building.

It has been benefited from steady economic growth and is now the second commercial and financial center of the city, housing international firms like Moody's, Citibank, Aon Corporation, Huawei, Millicom International Cellular, Nissan Motor Corporation represented by Taiyo Motors, Pan American Silver Corporation, a Sumitomo Corporation branch, Ernst & Young, and the " MegaCenter ", Bolivia's biggest shopping mall ( 52. 000 mts2 of construction ).

* Aon is the fantasy universe setting of the role-playing game Lone Wolf series

The Center is the 5th tallest completed building in Chicago, trailing the Willis Tower, Aon Center, John Hancock Center, and Trump International Hotel and Tower ( Chicago ) in height, but will be surpassed in height by the Waterview Tower if completed as planned.

* The Aon Center in Los Angeles, California, United States, is completed and becomes the tallest building in Los Angeles.

Aon Center is a 62-story, Modernist office skyscraper located at 707 Wilshire Boulevard in downtown Los Angeles, California.

The logo of the Aon Corporation, its anchor tenant, is displayed at the top in red.

The Aon Center is the name of two buildings.

When completed, the building was nearly identical in appearance to Stone's Aon Center in Chicago, Illinois ; completed two years previous as the Standard Oil Building, the Chicago tower is of the same floor plan and clad in the same marble, the only overtly visible difference being the vertical orientation of the windows, as opposed to the horizontal run of those on First Canadian Place.

The same white Carrara marble as that used on Aon Center is employed as an exterior cladding and interior finish for First Canadian Place, with approximate 45, 000 marble panels weighing around each.

The key note " Low A " is always represented in this notation by " in ", probably a contraction of " An Dàra Aon ", the second one, to distinguish the key note from the first note on the chanter —" low G ".

" Aon Center, at one point Los Angeles ' largest ( and presently second-largest ) tower, is at 707 Wilshire Boulevard in downtown Los Angeles.

In 2011, Aon was ranked as the largest insurance broker in the world based on revenue.

In 1997 it bought The Minet Group, as well as insurance brokerage Alexander & Alexander Services, Inc. in a deal that made Aon ( temporarily ) the largest insurance broker worldwide.

The firm made no U. S. buys in 1998, but doubled its employee base with purchases including Spain's largest retail insurance broker, Gil y Carvajal, and the formation of Aon Korea, the first non-Korean firm of its kind to be licensed there.

The brokerage unit Aon Risk Services provides retail property / casualty, liability, and other insurance products for groups and businesses, as well as risk management services.

Responding to industry demands, Aon announced its new fee disclosure policy in 1999, and the company reorganized to focus on buying personal line insurance firms and to integrate its acquisitions.

Despite its troubles, in 2000 Aon bought Reliance Group's accident and health insurance business, as well as Actuarial Sciences Associates, a compensation and employee benefits consulting company.

In 2003, the company saw revenues increase primarily because of rate hikes in the insurance industry ( meaning higher commissions for Aon ).

According to the SEC, Aon ’ s subsidiaries made improper payments of over $ 3. 6 million to government officials and third party facilitators in Costa Rica, Egypt, Vietnam, Indonesia, the United Arab Emirates, Myanmar and Bangladesh, between 1983 and 2007, in order to obtain and retain insurance contracts.

On June 1, 2010, Aon replaced troubled American insurance company AIG as the principal sponsor of the club.

* Aon plc, an insurance corporation

After he left Northwestern, he worked as an insurance executive for Aon Corporation until his death.

* Aon Corporation, an insurance corporation

In April 2008, ACE purchased the accident and health insurance provider Combined Insurance Company of America ( founded by W. Clement Stone in 1919 ) from Aon Corporation for $ 2. 56 billion.

The development has succeeded in attracting tenants thus far, with one-third of the tower already pre-let to insurance broker Aon, which moved its headquarters to London from Chicago.

On July 12, 2010, Chicago-based insurance broker, Aon Corp., announced that it had agreed to buy Hewitt Associates for $ 4. 9 billion in cash and stock.

Aon Re Global handles reinsurance brokerage services for aviation, marine, energy, professional liability, and other niche and specialty business lines.

Aon has approximately 600 offices worldwide, serving 120 countries with 61, 000 employees.

In January 2012, Aon announced that headquarters would be moved from Chicago to London.

Aon was created in 1982, when the Ryan Insurance Group ( founded by Pat Ryan in the 1960s ) merged with the Combined Insurance Company of America ( founded by W. Clement Stone in 1919 ).

In 1987, that company was renamed to Aon, a Gaelic word meaning oneness.

Its consulting unit, Aon Consulting Worldwide, specializes in employee benefits administration.

He also trimmed staff and took other cost-cutting measures, and in 1987 he changed Combined's name to Aon.

Aon built a global presence through purchases.

Also that year Endurance Specialty, a Bermuda-based underwriting operation that Aon helped to establish in November 2001 along with other investors, went public.

The next year Aon sold most of its holdings in Endurance.

The evacuation of Aon's offices, ordered by Eric Eisenberg, was carried out quickly as 925 of the 1, 100 Aon employees present at the time managed to evacuate the building before United Airlines Flight 175 struck it twenty stories below them.