• American College of Radiation Oncology

• American Society of Clinical Oncology (ASCO) professionally edited resource for oncology professionals and cancer patients, provides access to programs and information.

• Association of Cancer Executives national organization whose focus is to promote the advancement of its members' professional standing and personal achievement.

• Association of Oncology Social Workers nonprofit, international organization dedicated to the enhancement of psychosocial services.

• Biotherapy Development Association organisation devoted to the education, pre-clinical, and clinical research and development of biological therapies in cancer.

• British Association of Surgical Oncology works closely with affiliated cancer-specific subspeciality groups, particularly in respect of cancers of the breast, gastrointestinal tract, head and neck, endocrine system, and skin.

• British Oncology Data Managers' Association (BODMA) promoting data management and trial co-ordination in the U.K. in the field of oncology.

• British Oncology Pharmacy Association devoted to promoting excellence in the pharmaceutical care of British cancer patients.

• California Cancer Registrars Association - CCRA provides a network for exchange of information, resources, and peer support on a state and local level for California cancer registrars.

• California Oncology Consortium provides information, education, and guidance to its members specializing in hematology and medical oncology and to the public.

• Canadian Oncology Society (COS) aims to facilitate collaboration among medical professionals (doctors, nurses, and pharmacists) involved in cancer research and treatment.

• ICEDOC Committee professional organization working towards the establishment and development of oncology centers world-wide.

• International Society of Nurses in Cancer Care (ISNCC)

• National Cancer Registrars Association (NCRA) a nonprofit organization dedicated to supporting and promoting the cancer registry profession.

• Southern California Society of Radiation Therapists professional organization for oncology and cancer therapists. Lists upcoming meetings, continuing education, and members.

• The Foundation for Preventive Oncology Provides resources and information about cancer, nutrition, and spirituality.