THL's scope of activity includes both public health and social welfare. The institute aims at identifying synergy opportunities not only in the collaboration between social welfare and health care, but also in applying research and the knowledge generated with this research. THL's field of activity includes: • promoting the welfare and health of the population • preventing diseases and social problems • developing social and health care activities and services THL's main office is located in
Helsinki. The institute also has satellite offices in
Kuopio,
Oulu,
Tampere, and
Turku. THL has a total staff of about 935 person-years (2018). THL's annual budget is about 100 million euros, of which about one third comes through funding sources other than the State budget. In addition, the following State institutions are subordinate to THL: state mental hospitals (in Kuopio and Vaasa), and state residential schools. ==Organisation==