Abstract
In Tsukuba Science City, many research institutions, mainly national research institutions, are located.Almost all private institutions were located for the proximity to the national research institutions in the 1980s. However, the number of the private institutions has started to decrease late in the 1990s, and withdrawal of the research institutions continues even now. Because of this, it can be said that the merit located in Tsukuba is low for a private institutions. On the other hand, in recent years, the system of new industry-academia-government collaboration has started to be built since privatization.