Aon plc provides risk management services, insurance and reinsurance brokerage, and human resource consulting and outsourcing services worldwide. It operates through two segments, Risk Solutions and HR Solutions. The Risk Solutions segment offers retail brokerage services, including affinity products, managing general underwriting, placement, captive management services, and data and analytics; risk management solutions for property liability, general liability, professional liability, directors' and officers' liability, workers' compensation, and various healthcare products; and health and benefits consulting services comprising structuring, funding, and administering employee benefit programs. This segment also provides advisory services to technology, financial services, agribusiness, aviation, construction, health care, energy, and other industries. 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 for insurance and reinsurance clients. The 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. Aon plc was founded in 1919 and is headquartered in London, the United Kingdom.