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Gaelic Tugboat Co., Detroit, MI

Galcon Marine Ltd., Toronto, ON

Genesis Energy LP, Houston, TX

Geo. Gradel Co., Toledo, OH

Gordon’s Welding, Sarnia, ON

Grand River Navigation Co., Avon Lake, OH

Great Lakes Dock & Materials LLC, Muskegon, MI

Great Lakes Fleet Inc., Duluth, MN

Great Lakes Offshore Services Inc., Port Dover, ON

The Great Lakes Towing Co., Cleveland, OH