Great American Insurance Group promoted Michael Sullivan Jr. to executive vice president and David Thompson Jr. to senior vice president within its P&C operations, effective Jan. 1, 2017.

Sullivan will serve as reporting officer for Great American's environmental division, Great American Custom and Great American Professional Risk Insurance Services, in addition to his reporting responsibilities for Republic Indemnity, Strategic Comp and Summit.

Thompson will assume expanded reporting responsibilities, in addition to his role as reporting officer for Great American's specialty human services and trucking divisions as well as the P&C group's predictive analytics function. He will also have reporting responsibilities for Great American's alternative markets, excess liability and public sector divisions.

Great American Insurance Group members, including Great American Insurance Co., are subsidiaries of American Financial Group Inc.