Columbus Shipping & Trading Agency, Inc., offers Full Service Vessel Agency & Husbandry services on the Great Lakes. Founded by Robert A. Gierszal in 1968 at the Port of Erie, Pennsylvania the Agency is now operated by second generation shipping professionals Tom & Greg Gierszal, with company headquarters in Cleveland, Ohio. Columbus serves the ports of Cleveland, Erie, Ashtabula, Toledo, Detroit, Pt Huron, Buffalo and Oswego.