Great Lakes Dredge & Dock Company

Great Lakes Dredge & Dock Company traces its start to 1890 in Chicago, where early crews built shoreline works for the World’s Columbian Exposition. The firm moved its headquarters to Houston in 2020 and describes itself as the largest provider of dredging services in the United States. Its work covers channel deepening and maintenance, port expansion, coastal protection and beach restoration, land reclamation, and subsea rock installation for offshore energy. Clients range from the U.S. Army Corps of Engineers to port authorities and energy developers, and GLDD says it runs a fleet of about 200 specialized vessels. The company trades on Nasdaq under the ticker GLDD. Great Lakes worked major reaches of the Port of Corpus Christi’s $680 million channel improvement project alongside Callan Marine, according to 2023 DredgeWire reporting.