From public IRS filings

EARTH ISLAND INSTITUTE INC

BERKELEY, CA · Environment

EIN (Tax ID): 94-2889684Latest Form 990: 2025IRS ruling year: 1984Find their 990 filing →

Mission

Earth Island Institute (the Organization) was founded in 1982 by legendary environmentalist David R. Brower (1912-2000) to confront the unprecedented threats to life on Earth. The Organization supports environmental initiatives that are urgent...

Financials (IRS Form 990)

Total revenue
$30.9M
Total expenses
$34.8M
Total assets
$39.9M

Source: IRS Form 990, tax year 2025.

Who funds EARTH ISLAND INSTITUTE INC

$54.4M in foundation grants on record from 330 funders — matched from IRS 990 grant line items. Some matches may be approximate.

FunderTotal givenGrants
Waverley Street Foundation$12.8M4
National Fish and Wildlife Foundation$3.2M4
Donor Advised Charitable Giving$2.3M4
Rockefeller Philanthropy Advisors$2.1M3
Fidelity Investments Charitable Gift Fund$1.9M4
John D and Catherine T Macarthur Foundation (Consolidated)$1.6M2
San Francisco Foundation$1.4M4
Vanguard Charitable Endowment Program$1.3M4
Schmidt Family Foundation$1.3M4
Silicon Valley Community Foundation$1.2M3

Leadership

Josh Floum (Principal officer)

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