The Conrad N. Hilton Foundation in Agoura Hills announced Tuesday that Seattle land rights organization Landesa had won the 2015 Hilton Humanitarian Prize. The award’s unrestricted cash prize of $2 million is the world’s largest for a humanitarian gift.

Landesa has partnered with governments in more than 50 countries to secure land rights, mainly for rural farmers who need to work the land to survive but have no legal claim.

“Landesa’s vision is a world free of extreme poverty – a vision made possible by securing land rights for some of the most vulnerable and disadvantaged people throughout the world,” Steve Hilton, the foundation’s chief executive, said in a press release.

The Hilton Humanitarian Prize has been awarded annually for the last 20 years, with winners selected by an international jury. In honor of the anniversary, the foundation has established the Hilton Prize Coalition, comprised of Landesa and the 19 previous winners.

This year’s prize is also the last to be given out by Steve Hilton, who is retiring at the end of the year after 30 years at the foundation.