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

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/

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

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

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

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

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

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

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

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

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

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/

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/

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/

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/

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/

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

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/

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/

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/

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/