International research programs are an important priority in the RIZ. The main focus is on European and German research projects. The RIZ brings together national and international research networks in order to achieve the best possible results.

TiHo has also many established collaborative partners in the region, including the Helmholtz Center for Infection Research (HZI), the Hannover Medical School (MHH), the Friedrich Loeffler Institute (FLI in Mariensee), the Fraunhofer Institute of Toxicology and Experimental Medicine (ITEM) and the Lower Saxony State Office for Consumer Protection and Food Safety (LAVES).