Aon plc, a professional services firm, provides a range of risk and human capital solutions worldwide. It offers commercial risk solutions, including retail brokerage, specialty solutions, global risk consulting and captive management, and affinity programs; and health solutions, such as consulting and brokerage, consumer benefit, and talent advisory services. The company also provides insurance-linked securities, capital raising, strategic advice, restructuring, and merger and acquisition services; and risk management products and services, capital market solutions, and corporate finance advisory services. In addition, the company offers treaty and facultative reinsurance services; strategic design advice and actuarial services; and investment advisory services on developing and maintaining investment programs across various plan types, including defined benefit plans, defined contribution plans, and trusts for corporations, public pensions, endowments, and foundations.