Founded 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.
AAR M-1003 Certified Diesel Engine Department
certification
EPA Approved Gas Free Services
certification
EPA-Compliant Enclosed Sandblasting System
certification
The Great Lakes GroupSince 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.CLEVELAND, OH
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
May Ship Repair Contracting CorporationFrom its Staten Island shipyard, May Ship Repair Contracting Corporation builds, repairs, converts, and dry-docks marine vessels while also fabricating structural steel. In business for over 30 years, the company has three dry docks for vessels up to 300 feet and a 600-metric-ton marine travel lift. May Ship has also built infrastructure such as New York City ferry landings and operates as a preferred U.S. Coast Guard repair facility in the greater New York City area.STATEN ISLAND, NY
North Atlantic Ship RepairKnown locally as Boston Ship Repair, North Atlantic Ship Repair has provided vessel maintenance, repair, overhaul and conversion services from its East Coast facility since 1995. Its Boston Seaport drydock can accommodate vessels up to 1,150 feet long, while the company serves domestic, international and government customers. The shipyard says it has retained some clients for more than 25 years.336611PHILADELPHIA, PA