General inquiries

The William and Flora Hewlett Foundation
2121 Sand Hill Road
Menlo Park, CA 94025

(650) 234-4500


Grant inquiries

Please see individual program pages, our grants database, as well as grantmaking FAQ.

Media inquiries

For media inquiries or speaking engagements, please email the communications team at

Our office building

The foundation is committed to helping our community and offers meeting spaces free of charge on a first-come, first-served basis to nonprofit organizations. Note: We do not permit the space to be used for fundraising or political events.

Built in 2002, our building was the first in California and the fifth in the country to receive a gold-level certification under the U.S. Green Building Council’s LEED (Leadership in Energy and Environmental Design) rating system.

Anonymous and grantee feedback

Grantees and members of the public can submit comments anonymously through a third-party website. Responses are collected and relayed back to the foundation without any identifying information. In addition, grantees are welcome to provide comments directly to program staff at any time. View our full whistleblower policy for more information. 

Send us a message

We appreciate your interest in the Hewlett Foundation. We respond to requests for information in the order they are received. Please note we are unable to provide charitable contributions or sponsorships, building funds, scholarships or similar payments to individuals, or make investments in business initiatives. In addition, we will not be able to respond to funding inquiries that do not align with our programs. Learn more about our response to COVID-19 and see related resources. You can also see other frequently asked questions about our grantmaking.

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