American Society of Clinical Oncology
   American professional organization for physicians who treat cancer.
   http://www.asco.org

Association of Community Cancer Centers
   National organization for all members of oncology teams, and organizer of the Oncology State Society Network. Based in Maryland, USA.
   http://www.accc-cancer.org/

Association of Northern California Oncologists
   Dedicated to assisting local oncologists in delivering quality care to patients, act as advocates, and provide clinical and professional education.
   http://www.anco-online.org/

Bergamo Conference
   Organizes congress "International Conference on Thrombosis and Hemostasis Issues in Cancer (ICTHIC)" with two years interval.
   http://www.bergamoconference.com

British Thoracic Oncology Group
   Hold an annual meeting, has sub-groups with meetings and a website on thoracic oncology research.
   http://www.btog.org

CBCE - The Center for Biomedical Continuing Education
   Provider of accredited continuing medical education (CME) and continuing education (CE)in the cancer field, in Irving, Texas, USA.
   http://www.thecbce.com/

European Group on Tumor Markers
   With working groups developing detailed recommendations on the use of tumor markers in given tumor localizations.
   http://www.egtm.eu/

European Society for Medical Oncology
   European professional organization for medical oncology, providing education and clinical guidelines for medical oncologists and other healthcare professionals, working to ensure optimal care for cancer patients.
   http://www.esmo.org/

European Society of Surgical Oncology
   Non profit organization devoted to surgery for the treatment of cancer.
   http://www.esso-surgeonline.be/

Federation of European Cancer Societies
   Umbrella organization for European organizations in the oncology field.
   http://www.fecs.be

Florida Society of Clinical Oncology
   Facilitates and promotes multidisciplinary efforts to improve patient care in Florida. Includes officers, memberships, events, legislative update, news, jobs, and resources.
   http://flasco.stateaffiliates.asco.org/

Hawaii Society of Clinical Oncology
   Represents the common interests of oncologists treating cancer in Hawaii. Includes boards, membership, newsletter, links, and calendar of events.
   http://www.hsco-hawaii.com/

Internation Cancer Union
   International professional non-government organization dedicated to the global control of cancer.
   http://www.uicc.org

International Congress on Anti Cancer Treatment
   Congresses arranged annually.
   http://www.icact.com/

International Society for Biological Therapy of Cancer
   Professional society organizing congresses and symposia.
   http://www.isbtc.org

International Society for Oncology and Biological Medicine
   International society for research in tumor markers and oncodevelopmental and oncofetal biology.
   https://isobm.org

Louisiana Oncology Society
   Features information about membership, officers, current news, practice issues, legislative updates, resources, and events.
   http://www.laoncologysociety.org/

Medical Oncology Association of Southern California
   Advocates for patients to obtain and oncologists to provide optimal cancer care. Includes news about legislation, boards, memberships, community, jobs, and events.
   http://www.moasc.org/

Missouri Cancer Coalition
   Members are representatives for oncology and hematology and oversee local medical policies. Includes information about memberships, committees, goals, jobs, legislation, and patient resources.
   http://www.mocancercoalition.org/

Ohio/West Virginia Hematology Oncology Society
   Represents physicians that specialize in the practice of hematology and oncology. Provides information about the Society, reimbursement issues, legislative updates, upcoming events, and educational programs.
   http://www.ohwv.org/

Oklahoma Society of Clinical Oncology
   Dedicated to advancing the sciences of oncology and hematology, improve services to the public, advocate issues, and promote ethical standards. Includes news, membership, and physician directory.
   http://www.oscook.org/

Pennsylvania Society of Oncology and Hematology
   Represents physicians and other health care professionals involved in the care of cancer patients. Features patient resources, news, events, policies, jobs, and board of directors.
   http://www.psoh.org/

Society of Rhode Island Clinical Oncologists
   Promotes professional education, advocates for patient care, standards, and ethics. Includes legislative updates, news, memberships, and practice issues.
   http://www.rico-cancer.org/

The Arizona Clinical Oncology Society
   Represents the common interests of oncologists treating cancer in Arizona. Features membership, boards, newsletter, events, and contact information.
   http://www.tacos-oncology.com/

The Medical Oncology Group of Australia
   Association of Australian oncologists supporting research and clinical trials and organizing training and continuing education.
   http://www.moga.org.au