Leading insurance brokers in the U.S. 2020-2022, by revenue
Based on 2023 brokerage revenues from U.S. clients, the largest insurance broker in the United States is Marsh & McLennan Cos Inc. At this time, the New York-based professional services firm reported revenues from U.S. insurance broking of over 10 billion U.S. dollars. The next largest insurance broker in the U.S. market - Aon - is a UK-based company with 5.6 billion U.S. dollars in brokerage revenue from the U.S. market.