Aon plc

Aon plc is a British-American professional services firm that provides a broad range of risk, retirement, and health solutions globally. The company's mission is to shape decisions for the better, aiming to protect and enrich the lives of people around the world. Aon plc is headquartered in London, United Kingdom, with its global operational headquarters located at 122 Leadenhall Street, while its North American operations are based in Chicago.

The firm operates primarily through two key divisions: Risk Capital and Human Capital. The Risk Capital segment offers commercial risk solutions, including insurance and specialty brokerage, global risk consulting, captive management, and cyber risk solutions, alongside reinsurance brokerage, analytics, and capital markets advisory. The Human Capital segment provides health solutions such as consulting and brokerage, consumer benefits solutions, and talent advisory services, as well as wealth and retirement solutions, including retirement consulting and investment advisory.

Aon plc is a publicly traded company on the New York Stock Exchange under the ticker symbol AON. Greg Case serves as the President and Chief Executive Officer. Recent strategic moves include the acquisition of NFP for $13.4 billion in December 2023 and the acquisition of Humn.ai's technology assets in March 2024. In June 2026, NFP, an Aon Company, acquired Signature Personal Insurance, further expanding its capabilities. The company is recognized as the second-largest insurance broker globally and is listed on the Fortune 500.