Support Our Work

The Sustainable Endowments Institute relies almost exclusively on the generosity of individuals and foundations. SEI is a special project of Rockefeller Philanthropy Advisors, a 501(c)(3) nonprofit organization; therefore all donations to support the Sustainable Endowments Institute are fully tax-deductible.

To make a donation using a credit card, use our secure system: Donate Now.

By Mail
Rockefeller Philanthropy Advisors
Attn: Sustainable Endowments Institute
6 W 48th Street, 10th Floor
New York, NY 10036

Other Ways to Contribute
If you are interested in giving stock or supporting our work through in-kind contributions, please contact Mark Orlowski, Executive Director, at the following email: