International Collaborations:
- Ireland: ToPCaP
- Brazil: IRONMAN
- Australia: IRONMAN, ToPCaP
- United Kingdom: ToPCaP
- Sweden: NorTwinCan, EPoS, SPCG-4, SPCG-17, SAR
- Norway: NorTwinCan, NORCCAP–I, EPoS, NordICC, Scan-IBD, SAR
- Denmark: NorTwinCan
- Finland: NorTwinCan
- Scotland: EPoS
- Germany: EPoS
- Poland: EPoS
- The Netherlands: EPoS
- Spain: EPoS
- Italy: EPoS, ToPCaP
- Iceland: NordICC, ToPCaP
- Barbados: MadCaP
- Ghana, Nigeria, Senegal, South Africa: MaDCaP
- Greece: EPIC-Greece
- Canada: IRONMAN
- Mexico: IRONMAN + California Teacher’s Cohort
- Uganda: Mbarara University of Science and Technology, PaCT
- South Africa: PaCT
- Tanzania: PaCT
- Nigeria: PaCT
- China: Nanjing Medical University
- Austria: Medical University of Vienna
Consortia and Multinational Collaborations
- Ovarian Cancer Association Consortium
- Breast Cancer Association Consortium
- Oncoarray
- Markers of Density consortium (MODE): UK, Canada, Sweden, Australia, Spain, Germany GWAS of breast cancer
- Breast Cancer Association Consortium (BCAC): UK, Denmark, Sweden, Netherlands, USA, Canada, Belgium, Poland, Norway, Finland, Germany, Australia, Spain, Portugal, Nigeria, Mexico, Columbia, Israel, Singapore, Malaysia, Japan, South Korea, Russia, Belarus, Macedonia, Greece, Italy
- International Consortium on Mammographic Density (ICDM): France, UK, South Africa, Egypt, Singapore, Turkey, Israel, Mexico, Norway, The Netherlands, Kenya, Korea, Chile, Iran, Poland, Japan, China, Spain