Olympic Steamship Company was founded in Seattle, Washington, on August 22, 1925, by John Ambler, Charles A. Wallace, and William W. Shorthill. The Olympic Steamship Company had routes that served the Pacific Northwest. The Olympic Steamship Company had a fleet of about 4 ships. The Olympic Steamship Company was named after The Olympic Mountains in the state of Washington. John Ambler was an attorney, and Charles A. Wallace previously worked at Fisher Flouring Mills Company. William W. Shorthill was a clerk at The Pacific Steamship Company. After the start of the company, Joseph L. Carman, Jr., became vice president. Carman was previously president of Alaska Washington Airways. Olympic Steamship Company's first ship was an acquired 5,335-tonne tanker named the SS Dayton. Olympic Steamship Company renamed the Dayton the SS Olympic. The SS Olympic was built in 1907 as the Harport in South Shields, England. In 1936, Olympic Steamship Company entered into a joint venture with James Griffiths & Sons, Inc., as the Consolidated Olympic Company. The Consolidated Olympic Company offered a Long Beach, California, Seattle, and Tacoma, Washington, route on the Consolidated Olympic Line. The Consolidated Olympic Line was later renamed the Olympic-Griffiths Line. The Olympic-Griffiths Line acquired the 7,216-tonne cargo ship SS Olympic Pioneer, which was used on Pacific Northwest lumber and newsprint routes. The SS Olympic Pioneer also made two long voyages on the world trade route. The SS Olympic Pioneer then moved to a route from Puget Sound to Japan, moving US Army supplies. Olympic-Griffiths Line chartered ships for the other routes on the line. Ernest Clayton became president of the firm in 1940. Ernest Clayton previously worked for the McCormick Steamship Company. The Olympic Steamship Company was active in supporting the World War II effort.

USNS Huntsville (T-AGM-7) was a Watertown-class missile range instrumentation ship acquired by the U.S. Navy in 1960 and converted from the SS Knox Victory Victory ship cargo configuration to a missile tracking ship, a role she retained for a number of years before being struck from the Navy List in 1974.