From public IRS filings
INSTITUTE FOR SUSTAINABLE COMMUNITIES
MONTPELIER, VT · International Affairs
Mission
THE INSTITUTE FOR SUSTAINABLE COMMUNITIES (ISC) IS AN INTERNATIONAL, 501(C)(3) NONPROFIT ORGANIZATION THAT BRINGS PARTNERS, EXPERTISE, AND FUNDING TO COMMUNITIES THAT ARE MOST VULNERABLE TO CLIMATE CHANGE AND THE EFFECT IT HAS ON THE LIVES OF PEOPLE IN THE U.S. AND ABROAD.
Financials (IRS Form 990)
Total revenue
$5M
Total expenses
$8M
Total assets
$4.2M
Source: IRS Form 990, tax year 2025.
Who funds INSTITUTE FOR SUSTAINABLE COMMUNITIES
$17.8M in foundation grants on record from 30 funders — matched from IRS 990 grant line items. Some matches may be approximate.
| Funder | Total given | Grants |
|---|---|---|
| Freedom Together Foundation | $6.4M | 4 |
| Tides Foundation | $5.9M | 2 |
| John D and Catherine T Macarthur Foundation (Consolidated) | $1.6M | 4 |
| American Online Giving Foundation | $1M | 2 |
| Kresge Foundation | $675K | 3 |
| William & Flora Hewlett Foundation | $325K | 4 |
| Energy Foundation | $320K | 3 |
| Climate Imperative Foundation | $300K | 1 |
| Fidelity Investments Charitable Gift Fund | $295K | 4 |
| Barr Foundation | $250K | 2 |
Leadership
REBECCA KADURU (Principal officer)
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