Harleysville Group Inc. (Harleysville Group) is an insurance holding, through its subsidiaries, it is engages in the property and casualty insurance business on a regional basis in the United States. The Company operates in three segments: the personal lines of insurance, the commercial lines of insurance and the investment function. As December 31, 2011, the Mutual Company owned approximately 53% of the Company�s interests. The Company and the Mutual Company operate together to focus on underwriting an array of personal and commercial coverages. These insurance coverages are marketed in the eastern and Midwestern United States through approximately 1,300 insurance agencies. Its property and casualty insurance subsidiaries are Harleysville-Atlantic Insurance Company, Harleysville Insurance Company, Harleysville Insurance Company of New Jersey, Harleysville Insurance Company of New York, Harleysville Insurance Company of Ohio and Harleysville Lake States Insurance Company.