IWT Challenge Fund Evidence grants, ranging from £20,000 to £1,500,000, is a UK government grants scheme that provides support to innovative and scalable projects to reduce pressure on wildlife from illegal trade and,...

The Catalyst Fund makes grants between $2,500–$15,000 to anyone, anywhere in the world who has an early-stage idea or project that addresses pressing global challenges. There is no deadline for this opportunity,...

Critical Ecosystem Partnership Fund (CEPF) calls for letters of inquiry (LOI) regarding proposals that address biodiversity conservation related to climate change in selected areas in eligible project countries.

The Whitley Fund for Nature opened its annual call for proposals from mid-career grassroots conservationists, located in and nationals of a country in the global South.

The National Geographic Society calls for storytelling project proposals for short film, writing, data visualization or other means, addressing 'the greatest questions of our time'

The Forests & Communities Initiative ( FCI ) calls organizations led by indigenous peoples and local communities for expressions of interests to 'manage a regional call for projects'.