Marsh McLennan is Aon's #1 competitor. Marsh McLennan's headquarters is in New York, New York, and was founded in 1871. Like Aon, Marsh McLennan also works within the Professional Services sector. Marsh McLennan generates 151% of Aon's revenue.
Aon VS Gallagher
Gallagher is one of Aon's top rivals. Gallagher was founded in Rolling Meadows, Illinois} in 1927. Gallagher operates in the Insurance Brokers industry. Compared to Aon, Gallagher generates $4.5B less revenue.
Aon VS Mercer
Mercer is one of Aon's top competitors. Mercer is a Private company that was founded in 1945 in New York, New York. Mercer is in the Payroll & Benefit Support Services industry. Compared to Aon, Mercer has 40,000 fewer employees.
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Frequently Asked Questions about Aon
Who are Aon's top competitors?
Aon's top 3 competitors are Marsh McLennan, Gallagher, Mercer.
Who is similar to Aon?
Marsh McLennan is the most similar to Aon. Gallagher and Mercer are also similar to Aon.
Are Aon and Marsh McLennan competitors?
Yes, Marsh McLennan is one of Aon’s top competitors.