Karolinska Institutet has 22 departments and Comparative Medicine, Unit for Toxicological Sciences, Södertälje, University Library and University Administration.
Karolinska Institutet's students and researchers are supported by administrative functions at departments and central administration.
Karolinska Institutet University Press was founded in 2005, focusing on medicine for the layman.
Karolinska Institutet University Library is a public library, open for everyone. The library has branches in both Campus Solna and Campus Huddinge.
Comparative Medicine deals with all aspects of activities related to animal experimentation in research at Karolinska Institutet.
A centre at Karolinska Institutet is a focused concentration in a certain research or educational area which is flexible in its organisation and limited in time. The centres aim to create a dynamic collaboration. A common characteristic is that centres consist of research teams sharing equipment and premises.