Nia Tero is a Seattle-based left-of-center international foundation founded in 2017 by Conservation International co-founder Peter Seligmann. The organization supports indigenous-led environmental stewardship and conservation initiatives in the Americas, Africa, Asia, and the Pacific Islands. Nia Tero has received substantial support from major philanthropic funders, including billionaire MacKenzie Scott, and has participated in collaborative environmentalist initiatives, such as the Protecting Our Planet Challenge. 12 As of 2026, the organization reported having distributed more than $125 million in grants. 3
Nia Tero was established in 2017 by Peter Seligmann and a group of indigenous and non-indigenous environmentalist leaders. The name “Nia Tero” translates to “our Earth” in Esperanto, a constructed language chosen because it is not associated with any single culture or nationality. 3
As of 2026, Nia Tero reported distributing more than $125 million in grants since its founding, with approximately 92 percent directed to indigenous organizations, their fiscal sponsors, or partner organizations selected by indigenous groups. In January 2025, Seligmann stepped down as the chief executive officer and the board appointed ‘Aulani Wilhelm, who had worked as the organization’s chief strategy and external relations officer, as his successor and the first indigenous person to hold the role. 3
Funding and Key Donors
MacKenzie Scott, the philanthropist and ex-wife of Amazon founder Jeff Bezos, provided a reported $60 million grant to Nia Tero in 2021 and 2022. 1The MacArthur Foundation has also funded the organization, including support for indigenous-led investment initiatives in South America and the Pacific Islands. Between 2017 and 2023, the MacArthur Foundation awarded approximately $30 million in grants to Nia Tero. 5 The Bezos Earth Fund provided grant funding to Nia Tero as part of their shared membership in the Protecting Our Planet Challenge. 2
Protecting Our Planet Challenge
In September 2021, Nia Tero joined several philanthropic and environmentalist organizations to launch the Protecting Our Planet Challenge (POP), a coalition that pledged $5 billion over ten years to support the creation, expansion, and management of protected land and marine areas worldwide. The initiative supports the international “30×30” conservation goal, which seeks to place 30 percent of the world’s land and oceans under protection by 2030. 6
As of January 2025, ‘Aulani Wilhelm was the chief executive officer of Nia Tero, succeeding founder Peter Seligmann, who remained a member of the organization’s board of directors. 7 Prior to becoming CEO, Wilhelm worked as Nia Tero’s chief strategy and external relations officer. Before joining the organization, she held senior ocean conservation positions within the U.S. federal government and was a senior vice president at Conservation International, a left-of-center environmental organization. Wilhelm is also a co-founder of Big Ocean and the founder of Island Water. 8
Peter Seligmann founded Nia Tero in 2017 after previously co-founding Conservation International, where he served as the chief executive officer for approximately three decades. Following his departure as Nia Tero’s CEO in January 2025, he remained a member of the organization’s board of directors. That same month, Seligmann became the chair of Silvania, a biodiversity conservation initiative launched by Mercuria with a reported $500 million commitment to conservation and ecosystem restoration projects. 9
MacKenzie Scott made an unrestricted grant of $15,000,000 to Nia Tero. Mission: Nia Tero works in solidarity with Indigenous peoples who sustain thriving territories and cultures to strengthen guardianship of Earth and all beings.
The Bezos Earth Fund will partner with Nia Tero to support Union of the Indigenous Peoples of the Javari Valley (UNIVAJA) and Indigenous Council of Roramia (CIR) to advance their territorial protection efforts in the Javari Valley and the Indigenous territories of Roraima. The project will focus on supporting Indigenous guardianship, including territorial protection, policy and legal defense across the Javari Valley and Roraima Indigenous lands, as well as organizational strengthening of Indigenous organizations and communications on Indigenous issues.