This is a powerhouse company, associated with a powerhouse personality: Warren Buffet. Founded in 1889, Warren Buffet has recently transformed the company from a mediocre entity into a real powerhouse, one of the largest companies globally. The company engages in a conglomerate of businesses including insurance, investments in rail transportation, energy, services, retailing, manufacturing, utilities, and finance. Berkshire Hathaway provides primary insurance and reinsurance alike, of casualty and property risks. Berkshire Hathaway subsidiaries include the U.S. Liability Company, Berkshire Hathaway Primary Group, GEICO, Berkshire Hathaway Reinsurance Group, Central States Indemnity Company, Medical Protective Company, and the Applied Underwriters.