Company Information Company History: Worldwide Casualty Insurance Company was originally incorporated in Kentucky in 1981 under a prior name. In 1998, the present name was adopted and in 1999 it was acquired from its previous owner by the American Financial Group of Cincinnati, Ohio. The state of incorporation was changed from Kentucky to Ohio in 2002. All of Worldwide's stock is owned by Great American Insurance Company and the insurance business of Worldwide Casualty is reinsured by the affiliated insurer, Great American Insurance Company ...