American Cancer Society Inc. is one of the largest voluntary health organizations in the United States. Located in Springfield, Mo., it is one of the America s largest non-governmental investors in cancer research. The organization comprises 12-chartered divisions, more than 900 local offices nationwide and a presence in more than 5,100 communities. The divisions look out for awareness efforts, fundraising and public information events and program delivery in specific geographic regions. Through the American Cancer Society clinical trials matching service, it connects patients with more than 64,000 different treatment options.