IBO is an association of national biology competitions from countries and regions

IBO members are either countries or regions. We have grown from just 6 countries in 1990 to currently over 80 members.

To select the top four life science competitors for our international competition, all our members host national biology competitions. The resulting trickle-down effect leads to the engagement of more than 1 million students worldwide in life science phenomena!

In future years, we would like to increasingly integrate countries with a smaller sector in high abilities' education – you can help this endeavour.

Explore our membership countries in this map!

Members are those that actively participate in IBO with students. Pending members are on their way to becoming members and will soon start to bring students to IBO.

IBO members & pending members

National Biology Olympiads (members)

Pending members