Steinbrenner joined Kinsman Marine Transit Company in 1957, the Great Lakes shipping company that his great-grandfather Henry had purchased in 1901 from The Minch Transit Company, which was owned by a family relation, and renamed. Steinbrenner worked hard to successfully revitalize the company, which was suffering hardship during difficult market conditions. In its return to profitability, Kinsman emphasized grain shipments over ore. A few years later, with the help of a loan from a New York bank, Steinbrenner purchased the company from his family. He later became part of a group that purchased the American Shipbuilding Company, and, in 1967, he became its chairman and chief executive officer. By 1972, the company's gross sales were more than $100 million annually.