# Dean Witter Foundation

Dean Witter Foundation is an Endowment / Foundation based in San Rafael, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** San Rafael, United States
- **Region:** North America
- **Address:** San Rafael, CA, United States
- **Founded:** 1952
- **Assets under management:** Undisclosed
- **Website:** deanwitterfoundation.org
- **LinkedIn:** https://www.deanwitterfoundation.org/

## Regulatory record

- **Reports private funds:** No

## About

The Dean Witter Foundation was established in 1952 by Dean G. Witter, the founder of what became one of the largest securities brokerages in the United States. Now governed by third-generation family members, President Allison Witter Frey and CFO Dean Witter III lead a board of directors composed entirely of descendants. The foundation maintains its base in San Rafael, California, and its grantmaking footprint concentrates on Northern California's natural landscapes, water systems, and youth education programs. The foundation's grant portfolio operates across two primary tracks: environmental conservation and K-12 education. Conservation grants go to organizations working on landscape preservation, water stewardship, and connecting youth to the outdoors. Education grants support academic programs that help students reach their potential. The foundation does not publicly report direct investments, co-investments, or fund commitments. Its grantmaking activity is supported by an Altss-estimated endowment of roughly $8 million, reflecting a structure focused exclusively on philanthropic disbursement rather than active portfolio management. The Witter family's broader holdings, including the Witter Family Office under Sherry Pryor Witter, manage liquid crypto, venture investments, and commodity exposure separately. The foundation's board includes Malcolm G. Witter, a past president and founder of Kibble & Prentice, and Brooks Witter as Secretary. The Witter family's philanthropic presence extends beyond the Dean Witter Foundation to include the Augustus Dean Witter Foundation, the Michael D. Witter Foundation, and the Harvey L & Maud C Sorensen Foundation. The family has also endowed physical assets that reflect their philanthropic interests, including Witter Rugby Field at UC Berkeley and land holdings such as Lone Pine Ranch in Mendocino and Trinity Counties. The Dean Witter Foundation's structural differentiator is the complete separation of its grantmaking endowment from the family's private investment vehicles. While the Witter Family Office actively manages a multi-asset portfolio that includes crypto, commodities, and venture investments, the foundation operates independently with a narrow mission and an all-family board. This architecture isolates the foundation's $8 million endowment from the family's broader wealth strategy, a governance choice that places the foundation's focus entirely on programmatic grants rather than investment returns.

## Sectors

- Environmental Conservation
- Water Stewardship
- Education

## People

- Allison Witter Frey — President and Director
- Dean Witter III — CFO, Treasurer, and Director
- Brooks Witter — Secretary and Director
- Malcolm (Max) G. Witter — Director and past President

## Questions

### Who controls grantmaking decisions at the Dean Witter Foundation?

An all-family board of directors makes grant decisions. Allison Witter Frey serves as President, with Dean Witter III as CFO and Treasurer. Other board members include Malcolm G. Witter, a past president, and Brooks Witter as Secretary. All are grandchildren of founder Dean Witter.

### What organizations does the Dean Witter Foundation support?

The foundation makes grants to nonprofits in Northern California focused on environmental conservation and K-12 education. Conservation grants target landscape preservation, water stewardship, and connecting youth to nature. Education grants support academic programs that develop student potential. The foundation does not publicly list individual grantees.

### What is the relationship between the Dean Witter Foundation and UC Berkeley?

The Witter family are major donors to UC Berkeley, including the named Witter Rugby Field on campus. The family's philanthropic relationship with Berkeley also includes support for the Haas School of Business. These gifts are made alongside, not through, the foundation's formal grant programs.

## Related profiles

- [Boynton Beach General Employee's Pension Fund](https://altss.com/profile/boynton-beach-general-employee-s-pension-fund)
- [Exelon Corp Pension Master Trust - Legacy Real Estate](https://altss.com/profile/exelon-corp-pension-master-trust-legacy-real-estate)

---

Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/dean-witter-foundation

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology