Saab AB, with subsidiaries collectively known as the Saab Group, is a Swedish aerospace and defence company primarily operating from Sweden. The company is headquartered in Stockholm, but its development and manufacturing operations are undertaken in Linköping. The company was formally founded by AB Bofors in 1937, by reforming the aero engine division of company NOHAB, located in Trollhättan, into a proper aircraft manufacturer. It would soon merge with aircraft manufacturer ASJA, located in Linköping, in 1940, which had its own design bureau and is considered the spiritual predecessor to today's Saab AB. This formed the SAAB-concern, with the factory in Trollhättan becoming SAAB/T and the factory in Linköping becoming SAAB/L and design headquarters. From 1947, Saab started producing automobiles, the automobile division being spun off as Saab Automobile in 1990, a joint venture with General Motors. The joint venture ended in 2000 when GM took complete ownership. From 1968 onwards the company was in a merger with commercial vehicle manufacturer Scania-Vabis, known as Saab-Scania. The two were de-merged in 1995 by the new owners, Investor AB. Wikipedia