• International Agency for Cancer Research (IARC)
• International Association of Cancer Registries (IACR)
• Groupe des Registres de Langue Latine (GRELL)

• ECIBC - European Commission Initiative on Breast Cancer 
• STate of ART oncology in Europe (START)
• European Network of cancer Registries (ENCR)
• Association of the Nordic Cancer Registries (ANCR)

• Réseau Francim

• Associazione Registri Tumori Italiani (AIRTum)
• I tumori in Italia
• Associazione Italiana Ricerca sul Cancro (AIRC)
• Alleanza contro il Cancro
• Fondo Anglesio Moroni
• Lega Italiana per la Lotta contro i Tumori (LILT)

• Association of Comprehensive Cancer Centres – the Netherlands (IKC’net)

• National Cancer Program (ONCOSUISSE)

Spain

• Red Española de Registros de Cáncer (REDECAN)

• CANCER INDEX - Guida alle informazioni sui tumori nel web
• United Kingdom Association of Cancer Registries (ukacr)

• National Cancer Institute – US (NCI)
• Centre for Disease Control and Prevention – US (CDC)
• SEER*Stat