WFUMB is a Federation of Affiliated Organizations consisting of Regional Federations.

The Regional Federations cover National Societies of Ultrasound in Europe (EFSUMB), in Asia (AFSUMB), in North America (AIUM), in Latin America (FLAUS), in Australasia (ASUM) and in Africa (MASU).

Presently the total number of individual members is almost 50,000, and these are physicians, scientists, engineers and ultrasonographers.

EFSUMB has 19,417 individual members from 28 European countries.
AFSUMB has 16,565 members from 12 Asian Countries.
AIUM has 5,052 members from Unites States, Canada and other countries.
FLAUS has more than 4,813 members from 13 countries in Latin America.
ASUM has 1,592 members from Australia and New Zealand.
MASU has 1,633 individual members from 32 African and Mediterranean Countries.

TOTAL: 49,073 members