In addition to his academic roles, Fey has been actively engaged with various professional organizations, including the Swiss Group for Clinical Cancer Research (SAKK) and the European Society for Medical Oncology. His collaborative efforts with international groups, such as The European APL Group and his involvement with institutions like Hopital Avicenne and University Sorbonne Paris Nord, reflect his commitment to fostering global partnerships in oncology research.

Throughout his career, Martin F. Fey has been dedicated to improving cancer care and enhancing the understanding of oncological diseases, making him a respected figure in the medical community. His work continues to influence both current practices and future research in oncology.