Since its incorporation in 1899, The Great Lakes Group has built a 125-year Cleveland maritime history around the working waterways of the Great Lakes. The group is best known through The Great Lakes Towing Company, which operates the largest U.S.-flag tugboat fleet and supports commercial shipping across more than 40 ports. Its Cleveland shipyard extends that long-running marine role into vessel construction and repair.
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Lloyd’s Register
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Green Marine
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Subchapter M Compliance
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McNational, IncFounded in 1913 to help build Portsmouth, Ohio’s first floodwall, McNational, Inc. is a marine transportation, shipyard, and repair group serving the inland waterways. Now operating across the Ohio, Tennessee, and Mississippi rivers, the company combines harbor and line-haul boats with six full-service shipyards, including facilities capable of constructing and repairing vessels up to 300 feet long. Its marine and rail engine work includes an AAR M1003-certified diesel shop, while its McGinnis division continues the family name’s South Point, Ohio, shipyard tradition.SOUTH POINT, OH
Donjon Shipbuilding & RepairDonjon Shipbuilding & Repair is an Erie, Pennsylvania shipyard and part of Donjon Marine, a marine services company with more than six decades of experience. Known for its unusually large Great Lakes dry dock, the 44-acre yard serves domestic and international customers with vessel construction and repair work.ERIE, PA
The General Ship Repair CorporationFounded on Baltimore’s waterfront in 1924 by Charles Buck Lynch, The General Ship Repair Corporation is a family-owned shipyard that repairs and maintains workboats, tugs, barges, and other vessels. Now under fourth-generation Lynch ownership, the company works from two 1,000-ton floating dry docks and also provides industrial fabrication and repair through its Baltimore Metal Works division. Its 45-person team supports vessels both at the yard and throughout the port with 24-hour mobile repair service.BALTIMORE, MD
Superior Marine, IncFounded by Dale and Carolyn Manns in 1977, Superior Marine remains owned and operated by their sons, Michael, Stephen, and Matthew. The Ohio River company has grown from a barge-repair operation into a marine service yard, with its Burlington facility supporting commercial river fleets and custom vessel work.SOUTH POINT, OH