International Shipholding Corporation is a maritime transportation company founded in 1947 and headquartered in New Orleans, Louisiana. The company operates a diverse fleet of 21 U.S. and foreign-flagged vessels, providing cargo transportation services to commercial and governmental customers through six business segments, including Jones Act, PCTC, and Rail-Ferry operations. It participates in the U.S. Maritime Security Program, supporting national defense via eight vessels. The firm employs 311 personnel.