The Tuspark or Tsinghua University Science Park, Tuspark Holding Limited is a Chinese high-tech company which builds business parks. It has buildings in Zhongguancun of Beijing, in Kunshan, Suzhou, Jiangsu and in Nanjing. It has 30 branches all around China. About 400 companies and 25000 employees are working in Tuspark. The original branch is based just south-west next to the East Gate of the main campus of Tsinghua University in Wudaokou. Tuspark, which is an abbreviation of the Tsinghua University Science Park, was set up in 1994, the first building, the was built in 1998.