Gael Grunewald came to Israel from France after graduating the Etz-Haim Yeshiva in Switzerland; he joined the IDF and after a military service he returned to France for teaching and coordinating the Bnei Akiva youth movements. Following that, he came back to Israel and studied for a computer engineering degree and a degree in science teaching. Gael worked for five years for World Bnei Akiva and also managed the Jewish Agency Counselors Training Institute.

For four years Gael served as the Jewish Agency representative in Europe and was also an educational advisor for the European Rabbis Committee. At the end of the term he was elected Secretary General of World Bnei Akiva and as Chair of the Youth Movements World Council. In 2006 he was elected for the WZO Executive and served as the Head of the WZO Hagsham Department. In addition, he serves as Chair of the Beit-Shemesh / Washington / South Africa Partnership and Chair of the Vaad Amuta of world Bnei Akiva; he serves as a member and Chair in several organizations dealing with different areas.

Gael was elected as a Board member in June 2011. previously he served on the Board from 2001 through 2010.