HeSMO holds annually a national clinical oncology conference, which every two years is organized with the cooperation of other national scientific societies, such as the Hellenic Society for Radiotherapy Oncology. These conferences are attended by the majority of Greek oncologists, along with other doctors, scientists and medical students.

In addition to organizing its own conferences and meetings, HeSMO grants its auspices to a number of events related to the subject of oncology. These events are organized by other scientific societies, affiliated organizations or even HeSMO’s members. The granting of the auspices must be according to the HeSMO Auspices SOP and follow a decision of the Board of Directors, ensuring that the programs of these events complies with HeSMO’s own high standards and specifications.