Aon plc provides risk management services, insurance and reinsurance brokerage, and human resource consulting and outsourcing services worldwide. Its Risk Solutions segment offers retail brokerage products and services, including affinity products, general underwriting management services, placement services, and captive management services; and advisory services to the technology, financial services, agribusiness, aviation, construction, health care, energy, and other industries. This segment also provides various risk management solutions for property liability, general liability, professional liability, directors' and officers' liability, workers' compensation, and various healthcare products; risk consulting services; and health and benefits consulting services, such as structuring, funding, and administering employee benefit programs. In addition, this segment offers reinsurance brokerage services for treaty and facultative reinsurance, as well as specialty lines, such as professional liability, workers' compensation, accident, life, and health; actuarial, enterprise risk management, catastrophe management, and rating agency advisory services; and capital management transaction and advisory services. The company's HR Solutions segment offers human capital services in the areas of retirement, compensation, strategic human capital, investment consulting, benefits administration, exchanges, and human resource business process outsourcing. The company was founded in 1919 and is headquartered in London, the United Kingdom.