With roots dating back to 1828, Willis Towers Watson operates in over 140 countries and markets, offering consulting and management services to optimize benefits, cultivate talent, and protect institutions and individuals. They work with investors, insurers, and reinsurers to provide risk and return management solutions, including captives, climate quantification, cyber risk management, and insurance consulting. The company was acquired by Aon plc for $30 billion and serves various industries such as medical, service, insurance, information technology, and consulting. Additionally, Willis Re, their reinsurance division, was acquired by Arthur J. Gallagher & Co. in May 2021.