The activities of FIMU are managed by the headquarters of the American Mathematical Society in Providence/Rhode Island, under the supervision of the AMS Executive Director.
FIMU itself is governed by a board of directors which currently consists of the following persons:
- Hiraku Nakajima, President
- Christoph Sorger, Secretary
- Robert Bryant, Board Member
- Andrea Solotar, Board Member
- Mark Green, Board Member
FIMU Treasurer is Jane Hawkins.