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The Great Lakes Group
A full-service marine transportation organization of diversified marine-related companies operating on the Great Lakes; the East, Gulf, and West Coasts of the United States; as well as Puerto Rico, the islands of the Caribbean, and internationally. The Great Lakes Group includes: The Great Lakes Towing Company and Great Lakes Shipyard, Puerto Rico Towing & Barge Co., Tugz International LLC, and Soo Linehandling Services, Inc.