Nortraship

thumb|250px|House flag of the Norwegian merchant fleet during World War II. This flag was flown ashore from Nortraship offices, ships flew the regular Norwegian merchant flag. The Norwegian Shipping and Trade Mission (Nortraship) was established in London in April 1940 to administer the Norwegian merchant fleet outside German-controlled areas. Nortraship operated some 1,000 vessels and was the largest shipping company in the world. It made a major contribution to the Allied war effort.