IBO member countries and regions

IBO members are either countries or regions. We have grown from just 6 countries in 1990 to currently 75 members.

To select the top four life science contests 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!

IBO members

National Biology Olympiads (members)