thumbnail built by SGP]]
Simmering-Graz-Pauker AG (SGP), originally founded as Simmering-Graz-Pauker AG für Maschinen-, Kessel- und Waggonbau, was an important Austrian machine and engine factory manufacturing machinery, boilers and rail vehicles. It was established in 1941 through the merger of Simmering machinery and rolling stock company with the Graz machine and rolling stock company and the Paukerwerkstraße Corporation from Vienna .
After the Second World War the company was majority owned by the state and had a wide network of international offices and subsidiaries in Asia, South America and Europe with several thousand employees. The company experienced rapid growth until the mid-1980s.
In the early 1990s, as part of the restructuring of the "nationalized economy" the Republic of Austria sold their shares to Siemens AG. The company then operated for a few years as a "Siemens SGP GmbH", but this name was dropped after 1 April 2004. Until 30 September 2009 the former factories of SGP were part of Siemens Transportation Systems Austria GmbH & Co KG.
From 1 October 2009, the Company was converted to a stock corporation and has since been trading as Siemens AG Austria. On 16 September 2006, the plant in Vienna-Simmering celebrated its 175th anniversary. As part of Siemens, the factories were transformed from full-range suppliers to specialized centers of excellence. The Graz factory is now involved in the design and manufacturing of trucks and other specialized chassis while the factory in Vienna manufactures metro rolling stock and trams. In addition, rail vehicles are being designed and developed at both locations and then manufactured in other plants.
The focus was on energy technology for the construction of turbines and boilers to complete power plants and transportation technology for the construction of diesel engines, carriages and locomotives for the ÖBB, as well as vehicles for the Vienna and Graz transport systems (trams, metro ("Silver Arrow" and "V-wagon"), trains).
During the 1950s Simmering-Graz-Pauker A.G. developed the SGP M-222 Flamingo, their first aircraft.<ref name=JAWA62/> It was a conventional twin engine monoplane, smaller than many<ref name=Flight/> but seating four in two rows.<ref name=JAWA62/>
The first prototype flew for the first time on 15 May 1959<ref name=JAWA62/> but was lost in a fatal crash during single engine tests on 2 August 1959.<ref name=cn1_crash/> Development work continued on a second aircraft which first flew in 1960 and a third followed in 1962.<ref name=Tilborg/> The fourth aircraft, now renamed the Simmering-Graz-Pauker SGP.222 was intended as a production prototype and demonstrator and appeared at the 1964 Hamburg show, though it turned out to be the last of the line. At the end of 1964 the program was terminated and the three surviving examples scrapped.<ref name=Tilborg/>
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ÖBB Electric locomotive 1010 003-0
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ÖBB locomotive 1044 060-0
ÖBB 4020 113 Express train
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ÖBB 4010 (modified) in Graz
Schwabenberg train in Budapest
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Low-floor tram ULF B1 in Vienna
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U-Bahn Type V in Vienna