Coordinates: 59°25′17.28″N 24°48′6.51″E / 59.4214667°N 24.8018083°E
Ülemiste City is a business park in Tallinn, Estonia, on the territory of the former factory complex Dvigatel in Ülemiste neighbourhood. It is situated between Lennart Meri Tallinn Airport, shopping centre Ülemiste Keskus and the Ülemiste railway station, forming the core of the Ülemiste subdistrict.
The factory complex Dvigatel, built in the end of the 19th century for producing railway cars and other machinery for the Russian Empire, lost its raison d’être after Estonia regained its independence from the Soviet Union in 1991. After its privatization and some unsuccessful attempts to restore former production capacities, the new owners decided to reprofile the business. In 2005, AS Mainor launched the transformation of the favourably-located 36 ha old industrial area into a modern technology campus, drawing inspiration from Kista City near , called the Silicon Valley of the Nordic countries. In 2010, the Finnish company Technopolis was included in the development of the business park.