How much does The Dean Witter Foundation give?

The Dean Witter Foundation reported 18 grants totaling $427,500 in its FY2025 IRS filing. It funded between 10 and 41 organizations a year over FY2018 to FY2024.

What does The Dean Witter Foundation fund?

By grant dollars over FY2017 to FY2025, its largest causes are Philanthropy (72%), Education (8%), Environment (7%).

Who are The Dean Witter Foundation's largest grantees?

By total granted over FY2017 to FY2025: The Peninsula College Fund ($203k), Bellevue Schools Foundation ($188k), Naturebridge ($175k).

Does The Dean Witter Foundation fund new organizations?

In FY2024, 31% of the organizations it funded were first-time grantees.

Does The Dean Witter Foundation accept unsolicited applications?

Its most recent filing reports that it accepts unsolicited grant applications.

Which funders back the same organizations as The Dean Witter Foundation?

Its strongest co-funders, measured against what their size predicts, include Clif Family Foundation, Miranda Lux Foundation, The Joseph and Vera Long Foundation.

Where is The Dean Witter Foundation based?

The Dean Witter Foundation is based in CA.

Foundation Dossiers

California · Private foundation

The Dean Witter Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$428k
Granted FY2025(still arriving): 18
Grants FY2025: 13
Organizations funded FY2024: 31%
First-time grantees FY2024

Read the full brief

Median grant, FY2025: $25,000
Largest grant, FY2025: $45,000
Organizations funded a year: 10 to 41; FY2018 to FY2024
States reached, FY2025: 5
Total assets, FY2025: $7.1M
Applications: Takes unsolicited applications; Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 31% of the organizations The Dean Witter Foundation funded were first-time grantees, receiving 28% of its grant dollars.

New vs renewed · share of each year

In FY2024, 72% of grant dollars renewed an existing relationship; $85k went to new ones.

RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

EnvironmentEducationFood & NutritionYouth DevelopmentScience & TechHuman ServicesOther

How this is measured

First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

The numbers by year

Fiscal year	Organizations funded	To those organizations	First-time grantees
FY2025still arriving	17	$428k	35%
FY2024	13	$301k	31%
FY2023	13	$298k	62%
FY2022	10	$299k	20%
FY2021	14	$225k	36%
FY2020	13	$315k	54%
FY2019	14	$280k	86%
FY2018	41	$1.6M	83%

99% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Philanthropy$12MEducation$1.5MEnvironment$1.2MFood & Nutrition$340kScience & Tech$293kYouth Development$280kArts & Culture$240kHealth$190kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Grantee	Total granted	Years	Share of their budget
The Peninsula College Fund	$203,000	4	10%
Bellevue Schools Foundation	$188,000	6	3%
Naturebridge	$175,000	6	0%
Friends of Kexp	$115,000	5	0%
The Thacher School Inc	$110,000	3	0%
The Wildlands Conservancy	$90,000	3	0%
The Ceres Community Project	$81,800	2	2%
Reach University	$80,000	2	2%
Northcoast Regional Land Trust	$80,000	3	6%
The San Juan Preservation Trust	$75,000	3	1%

Show all 92 grantees

All grantees of The Dean Witter Foundation by total granted
Grantee	Total granted	Years	Share of their budget
The Peninsula College Fund	$203,000	4	10%
Bellevue Schools Foundation	$188,000	6	3%
Naturebridge	$175,000	6	0%
Friends of Kexp	$115,000	5	0%
The Thacher School Inc	$110,000	3	0%
The Wildlands Conservancy	$90,000	3	0%
The Ceres Community Project	$81,800	2	2%
Reach University	$80,000	2	2%
Northcoast Regional Land Trust	$80,000	3	6%
The San Juan Preservation Trust	$75,000	3	1%
AP Giannini Middle School PTA	$75,000	2	21%
Northwest Association for Biomedical Research	$70,000	4	6%
Mentoring Urban Students & Teens	$70,000	2	24%
Institute for Systems Biology	$62,500	3	0%
Young Women Empowered	$60,000	2	2%
Community Resources for Science	$60,000	2	n/a
Islandwood	$60,000	3	0%
Eat Happy Now	$55,000	2	2%
Pie Ranch	$55,000	2	1%
Life Learning Academy	$50,000	1	2%
Santa Rosa Junior College Foundation	$50,000	1	0%
Credo High School	$50,000	1	1%
Marine Applied Research and Exploration	$50,000	1	7%
FoodWhat Incorporated	$50,000	1	7%
Mountain Parks Foundation of Santa Cruz	$50,000	1	n/a
Coastal Watershed Council	$50,000	1	8%
Game Theory Academy	$50,000	1	n/a
Girls Incorporated of Alameda County	$50,000	1	1%
Waterside Workshops	$50,000	1	7%
Canopy	$50,000	1	6%
Fred Hutchinson Cancer Research Center	$50,000	2	0%
Redwood Empire Food Bank	$50,000	1	0%
Ventana Wilderness Alliance	$50,000	1	9%
Resource Central	$50,000	2	1%
Well Beyond Academics Inc	$48,500	2	31%
Pelican Media	$40,000	1	33%
Wilderness Arts and Literacy Collaborative	$40,000	1	39%
Pepperwood Foundation	$40,000	2	1%
Songcatchers Inc	$35,000	2	n/a
New Hope Peninsula Ministries	$35,000	1	32%
LandPaths	$30,000	1	1%
PASSAGEWAYS INSTITUTE INC dba PASSAGEWORKS INSTITUTE	$30,000	1	10%
Environmental Traveling Companions	$30,000	1	3%
Northwest Film Forum	$30,000	1	3%
Smith River Alliance Inc	$28,000	1	6%
Earth Island Institute Inc	$25,000	1	0%
San Rafael City Schools	$25,000	1	n/a
Planting Justice	$25,000	1	1%
Aim High	$25,000	1	n/a
The Marine Mammal Center	$25,000	1	0%
Spark	$25,000	1	8%
Marin County Office of Education	$25,000	1	n/a
Education Outside	$25,000	1	1%
Fred Hutchinson Cancer Center	$25,000	1	0%
Tri-Valley Conservancy	$25,000	1	1%
Pacific Science Center Foundation	$25,000	1	0%
Stewards of the Coast and Redwoods	$25,000	1	4%
Ten Strands	$25,000	1	2%
Marine Corps Scholarship Foundation Inc	$25,000	1	0%
Ecology Center	$25,000	1	0%
The Hope Heart Institute	$25,000	1	n/a
Ganna Walska Lotusland	$25,000	1	1%
Practical Farmers of Iowa	$25,000	1	n/a
Rainier Scholars	$25,000	1	1%
Pathfinder Ranch Inc	$20,500	2	1%
Environmental Volunteers Inc	$20,000	1	3%
Rising Sun Center for Opportunity fka RISING SUN ENERGY CENTER	$20,000	1	1%
Semper Fi & America's Fund	$20,000	1	0%
Exploring New Horizons	$20,000	1	1%
Pitzer College	$20,000	2	0%
Lime Foundation	$20,000	1	6%
Edgewood Center for Children and Families	$20,000	1	0%
Girls Steam Institute	$15,000	1	n/a
The Rahus Institute	$15,000	1	9%
Mid Klamath Watershed Council	$15,000	1	1%
San Francisco Green Film Festival	$15,000	1	8%
Conservation International Foundation	$15,000	1	0%
Community Initiatives	$15,000	1	0%
Napa Resource Conservation	$15,000	1	n/a
Learning With Nature	$12,000	1	19%
One Eighty Foundation	$10,000	1	n/a
Squam Lakes Association	$10,000	1	n/a
Lewa Wildlife Conservancy USA	$10,000	1	0%
Foundation for Students Rising Above	$10,000	1	0%
Sustainable Marin	$10,000	1	4%
Sempervirens Fund	$10,000	1	0%
University of California- Davis	$10,000	1	n/a
Second Harvest of Silicon Valley	$10,000	1	0%
Bellevue College Foundation	$7,500	1	0%
The Four Way Foundation	$6,450	1	21%
Parent Engagement Network	$5,000	1	8%
Rocky Mountain Institute	$2,000	1	0%

What it could do for these grantees

Plus 29 recipients with no EIN on record ($901k), not named here.

The Dean Witter Foundation supplied at least a quarter of the budget for 4 of its grantees at some point. The chart plots its 78 largest grantees; load-bearing ones sit top left.

Tap a dot to name the grantee.

How this is measured

Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 78.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Clif Family FoundationCA40× affinity19 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Clif Family Foundation · Miranda Lux Foundation · The Joseph and Vera Long Foundation · Marin Community Foundation · The San Francisco Foundation · Mary a Crocker Trust · Bothin Foundation · Silicon Valley Community Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Save the Redwoods League · Patagoniaorg · The David and Lucile Packard Foundation

How this is measured

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare The Dean Witter Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Dean Witter Foundation?

Find your warmest path to The Dean Witter Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About The Dean Witter Foundation

How much does The Dean Witter Foundation give?: The Dean Witter Foundation reported 18 grants totaling $427,500 in its FY2025 IRS filing. It funded between 10 and 41 organizations a year over FY2018 to FY2024.
What does The Dean Witter Foundation fund?: By grant dollars over FY2017 to FY2025, its largest causes are Philanthropy (72%), Education (8%), Environment (7%).
Who are The Dean Witter Foundation's largest grantees?: By total granted over FY2017 to FY2025: The Peninsula College Fund ($203k), Bellevue Schools Foundation ($188k), Naturebridge ($175k).
Does The Dean Witter Foundation fund new organizations?: In FY2024, 31% of the organizations it funded were first-time grantees.
Does The Dean Witter Foundation accept unsolicited applications?: Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as The Dean Witter Foundation?: Its strongest co-funders, measured against what their size predicts, include Clif Family Foundation, Miranda Lux Foundation, The Joseph and Vera Long Foundation.
Where is The Dean Witter Foundation based?: The Dean Witter Foundation is based in CA.