The Secretariat has over 1,000 full-time staff in more than 60 countries. Seventy percent of staff members are from developing countries.

Accountable to the IUCN Council, the Secretariat is led by a Director General. The Secretariat has a decentralized structure with regional, outpost, country and project offices around the world. IUCN’s headquarters are in Gland, near Geneva, Switzerland.