# Ithaka S+R

Ithaka S+R is an Endowment / Foundation based in New York, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** 101 Greenwich Street, 18th Floor, New York, NY 10006
- **Founded:** 1995
- **Assets under management:** 281 (Altss estimate)
- **Website:** https://www.ithaka.org
- **LinkedIn:** https://www.linkedin.com/company/ithaka

## Regulatory record

- **Reports private funds:** No

## About

We are a mission-based not-for-profit working to eliminate barriers to learning by making higher education and access to knowledge more affordable.

## Sectors

- Education
- Digital Preservation

## Offices

- Ann Arbor, MI, United States

## People

- Kevin M. Guthrie — Founder
- Henry S. Bienen — Chair of the Board of Trustees
- Catharine Bond Hill — Managing Director of Ithaka S+R

## Questions

### Who runs investment decisions at Ithaka Harbors?

The board of trustees oversees capital allocation. Henry S. Bienen serves as chair. No separate CIO is named in available records.

### Does Ithaka Harbors participate in fund commitments or only direct deals?

The endowment holds publicly traded securities and alternative investments. No fund commitments or co-investors are disclosed.

### Where does the underlying support come from?

Ithaka Harbors receives funding from the Andrew W. Mellon Foundation, Alfred P. Sloan Foundation and Kresge Foundation.

### What investment stages does Ithaka Harbors target?

No stage preferences are stated. The portfolio supports a 10-year minimum investment horizon.

### How is Ithaka Harbors related to JSTOR?

Ithaka Harbors owns 100 percent of JSTOR through Ithaka Harbors, Inc.

## Related profiles

- [Fairfield County Community Foundation](https://altss.com/profile/fairfield-county-community-foundation)
- [Leominster Retirement Board](https://altss.com/profile/leominster-retirement-board)

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Last updated: 2026-07-08T21:10:44.540Z

Canonical page: https://altss.com/profile/ithaka-harbors

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