0 Insurance Industry

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from these and its other operations over the years to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the firms that make up its manufacturing, service, and retailing operations (which include five of Berkshire's largest noninsurance pretax earnings generators: Precision Castparts, Lubrizol, Clayton Homes, Marmon and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.

China Life Insurance Co Ltd is a dominant player in the Chinese life insurance industry. The firm offers group and individual life insurance through exclusive agents, bancassurance, and other marketing platforms. While the bulk of profits stem from life insurance policies, additional operations include short-term policies such as accident and health insurance. The company is currently undergoing a business transformation toward the sale of long-term protection products and away from short-term and single-premium products.

ACE acquired Chubb in the first quarter of 2016 and assumed the Chubb name. The combination makes the new Chubb one of the largest domestic property and casualty insurers, with operations in 54 countries spanning commercial and personal P&C insurance, reinsurance, and life insurance.

Marsh & McLennan is a professional-services firm that provides advice and solutions in the areas of risk, strategy, and human capital. The company operates through two main segments: risk and insurance services and consulting. In risk and insurance services, the firm offers services via Marsh (an insurance broker) and Guy Carpenter (a risk and reinsurance specialist). The consulting division comprises Mercer (a provider of human resource services) and Oliver Wyman (a management and economic consultancy).