The group cooperates with both national og international researchers.
- National Institute of Public Health, Division of epidemiology, Oslo
- Section of preventive medicine and epidemiology, University of Oslo
- Institute of community medicine, University of Tromsø
- Centre for Molecular Biology and Neuroscience, University of Oslo
- Centre for Research and Education in Forensic Psychiatry, Oslo University Hospital
- Unit for Applied Clinical Research, NTNU
- Ullevål Department of Research Administration, Oslo University Hospital
- Department of Nutrition, University of Oslo
- Sahlgrenska Academy, Gothenburg University: InterGene Research Program and EpiLife.
- The International Consortium of Blood Pressure Genome-wide Association Studies (ICBP GWAS), UK
- The International Consortium on QT-IGC consortium for QT interval, UK
- Department of Mathematics and Statistics, University of Massachusetts at Amherst