Interlake Maritime Services is a family of companies with more than 300 years of collective service on the Great Lakes. A family-owned and -led company in its second generation, Interlake Maritime Services and its more than 50 shoreside employees manage The Interlake Steamship Company, Interlake Logistics Solutions, Lake Michigan Carferry, Soo Maritime Services and Interlake Port Services from its corporate headquarters in Middleburg Heights, a suburb of Cleveland, Ohio, and regional offices in Ludington and Sault Sainte Marie, Mich.