The American Cancer Society (ACS) is a nationwide, community-based voluntary health organization. Headquartered in Atlanta, Georgia, the ACS has state divisions and more than 3,400 local offices.

CancerCare

CancerCare is a national nonprofit organization whose mission is to provide free, professional support services to anyone affected by cancer: people with cancer, caregivers, children, loved ones, and the bereaved. CancerCare programs – including counseling, education, financial assistance and practical help – are provided by trained oncology social workers and are completely free of charge. Founded in 1944, CancerCare now provides individual help to more than 90,000 people each year, in addition to the 1.4 million people who gain information and resources from its website.

The mission of Y-ME National Breast Cancer Organization is to ensure, through information, empowerment and peer support, that no one faces breast cancer alone.

The mission of the Women's Cancer Network is to keep women informed and to enable them to be their own health advocates. The Gynecologic Cancer Foundation (GCF) and CancerSource have developed the Women's Cancer Network with an unrestricted educational grant provided by Bristol-Myers Squibb Oncology.