The Western Dry Dock and Shipbuilding Company was a shipyard that operated at Port Arthur, Ontario, now part of Thunder Bay, on Lake Superior from 1911 to 1993. The shipyard was established in 1909 and renamed in 1916 as the Port Arthur Shipbuilding Company. The yard closed in 1993. It reopened as a repair yard Lakehead Marine and Industrial, however that venture failed in 2014. As of 2016, the shipyard was purchased by Heddle Marine. It is operated by Heddle Marine in partnership with Fabmar Metals Inc, of Thunder Bay. The venture focuses on ship repair services and winter layup options.
The American Steamship Company (ASC) is an American transportation company that operates a fleet of self-unloading vessels in the Great Lakes. The company is currently owned by Rand Logistics Inc.
MV Indiana Harbor is a very large diesel-powered lake freighter owned and operated by the American Steamship Company. This vessel was built in 1979 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
MV American Integrity is a ship built in 1978 by Bay Shipbuilding Company in Sturgeon Bay, Wisconsin. She is one of the thirteen 1,000 footers in the Great Lakes laker fleet. She was originally built as Lewis Wilson Foy and was renamed Oglebay Norton in 1991. She was renamed again after the sale to American Steamship Company in June, 2006. On September 24, 2017 the American Integrity broke the all-time record for the largest load through the Soo Locks with 75,095 tons of iron ore beating the record held for the last two weeks by the Edwin H. Gott. She was loaded to a draft of 29 ft 7 in on her way to Indiana Harbor.
The SS St. Marys Challenger is a freight-carrying vessel operating on the North American Great Lakes built in 1906. Originally an ore boat, she spent most of her career as a cement carrier when much larger ore boats became common. After a 107-year-long working career as a self-propelled boat, she was converted into a barge and paired with the tug Prentiss Brown as an articulated tug-barge. Before conversion, she was the oldest operating self-propelled lake freighter on the Great Lakes, as well as being one of the last freight-carrying vessels on the Great Lakes to be powered by steam engines.
Algoma Compass, formerly Roger M. Kyes and Adam E. Cornelius, is a self-unloading bulk carrier built in Toledo, Ohio in 1973 for the American Steamship Company. The bulk carrier carried bulk cargoes throughout the Great Lakes and St. Lawrence Seaway. The vessel has earned a reputation as a "hard luck" ship, experiencing mechanical failures and groundings. In 2018, the ship was acquired by Algoma Central and put in service as Algoma Compass.
Bay Shipbuilding Company (BSC) is a shipyard and dry dock company in Sturgeon Bay, Door County, Wisconsin. As of 2015, Bay Ships was a subsidiary of Fincantieri Marine Group and produces articulated tug and barges, OPA-90 compliant double hull tank ships and offshore support vessels. It also provides repair services to the lake freighter fleet. In the past the shipyard located in Sturgeon Bay has operated under several different names and traces its history back to 1918.
M/V Burns Harbor is a very large diesel-powered Lake freighter owned and operated by the American Steamship Company. This vessel was built in 1980 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
MV American Century is a very large diesel-powered Lake freighter owned and operated by the American Steamship Company. This vessel was built in 1981 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin, and included self-unloading technology.
MV American Courage is a diesel-powered lake freighter owned and operated by Grand River Navigation. This vessel was built in 1979 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
M/V Walter J. McCarthy Jr. is a 1000' diesel-powered lake freighter owned and operated by the American Steamship Company. This vessel was built in 1977 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
MV Edwin H. Gott is a very large diesel-powered lake freighter owned and operated by Great Lakes Fleet, Inc, a subsidiary of Canadian National Railway. This vessel was built in 1979 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin, and included self-unloading technology.
MV John J. Boland is a diesel-powered lake freighter owned and operated by the Buffalo-based American Steamship Company (ASC), a subsidiary of Rand Logistics. This vessel was built in 1973 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin. Initially named Charles E. Wilson, the vessel was renamed to its current name in 2000.
Algoma Buffalo, formerly Buffalo, is a diesel-powered lake freighter acquired by Algoma Central Corporation in 2018. This vessel was built in 1978 by Bay Shipbuilding Company at their yard in Sturgeon Bay, Wisconsin for the American Steamship Company and included self-unloading technology. The ship is 634 feet 10 inches (193.50 m) long and 68 feet (21 m) wide, with a carrying capacity of 24,457 tons deadweight (DWT), and is primarily used to ship road salt and construction goods. The vessel is currently in service.
MV American Mariner is a diesel-powered lake freighter owned and operated by the American Steamship Company (ASC). This vessel was built in 1980 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
M/V H. Lee White is a diesel-powered Lake freighter owned and operated by the American Steamship Company (ASC). This vessel was built in 1974 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin and included self-unloading technology.
MV Roger Blough is a ship built in 1972 by American Ship Building Company in Lorain, Ohio. She serves as a lake freighter on the Great Lakes. The ship is owned by Great Lakes Fleet, Inc. and is named for the former chairman of U.S. Steel, Roger Blough.
Peterson Builders Incorporated (PBI) was an American ship building company that constructed small to medium, naval and commercial ships and boats. The company mainly operated from a shipyard in Sturgeon Bay, Wisconsin. Spare parts and logistics were managed from Virginia Beach, Virginia and a ship repair operation in Ingleside, Texas made up part of PBI.
The MV Kaye E. Barker is a self-discharging lake freighter owned and operated by the Interlake Steamship Company. She was originally built as the SS Edward B. Greene, and was later renamed SS Benson Ford before being sold to Interlake and named the MV Kaye E. Barker. It primarily hauls hematite pellets, stone, and coal across the North American Great Lakes.
MV Mark W. Barker is a large diesel-powered lake freighter owned and operated by the Interlake Steamship Company. She is the first of the River-class freighters constructed for an American shipping company. MV Mark W. Barker is the first ship on the Great Lakes to be powered with engines that meet EPA Tier 4 standards. It is the first U.S.-flagged, Jones Act-compliant ship built on the Great Lakes since 1983.
United States
Wilmington, Delaware 
