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California · Private foundation

Weinreb Pilecki Segal Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$93k
Granted FY2025(still arriving)
69
Grants FY2025
54
Organizations funded FY2024
41%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$620
Largest grant, FY2025
$7,500
Organizations funded a year
7 to 73
FY2018 to FY2024
States reached, FY2025
6
Total assets, FY2025
$883k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 41% of the organizations Weinreb Pilecki Segal Foundation funded were first-time grantees, receiving 18% of its grant dollars.

New vs renewed · share of each year

In FY2024, 82% of grant dollars renewed an existing relationship; $23k went to new ones.

50%100%’19’20’21’22’23’24
RenewedFirst-time

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

’19’20’21’22’23’24
Human ServicesAnimalsArts & CultureEducationInternationalCivil RightsOther
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 yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving45$93k42%
FY202454$129k41%
FY202356$131k41%
FY202256$105k52%
FY202153$90k62%
FY202073$64k68%
FY201943$41k86%
FY20187$21kn/a
93% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Human Services$219kHousing & Shelter$145kEducation$42kAnimals$40kFood & Nutrition$36kPhilanthropy$32kArts & Culture$30kCivil Rights$21kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
VT
WA
ID
MT
MN
IL
WI
MI
NY
OR
PA
NJ
CT
CA
MO
VA
AZ
TN
DC
AL
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The Living Room Center$180,26582%
Rebuilding Together Petaluma Inc$48,85573%
Homeward Bound of Marin$45,62660%
Sonoma Applied Village Services$22,13264%
Homeless Action Sonoma Inc$15,50032%
Roseland School District$15,2057n/a
West County Community Services$12,21540%
Redwood Empire Food Bank$10,15570%
The Ceres Community Project$9,6331n/a
Gaines-Jones Scholars$9,263719%
Show all 114 grantees
All grantees of Weinreb Pilecki Segal Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The Living Room Center$180,26582%
Rebuilding Together Petaluma Inc$48,85573%
Homeward Bound of Marin$45,62660%
Sonoma Applied Village Services$22,13264%
Homeless Action Sonoma Inc$15,50032%
Roseland School District$15,2057n/a
West County Community Services$12,21540%
Redwood Empire Food Bank$10,15570%
The Ceres Community Project$9,6331n/a
Gaines-Jones Scholars$9,263719%
San Francisco Food Bank$8,75040%
Ruthless Kindness$8,64850%
Food for Thought$7,96950%
Kqed Inc$6,30060%
Start Soco$5,20052%
Southern Poverty Law Center Inc$5,00020%
Free to Be$4,50021%
Una Vida$4,10024%
People for the American Way$4,00010%
Compassion Without Borders$4,00020%
Alameda Emergency Food DBA Alameda Food Bank$4,00010%
Welcoming Home$3,80041%
The Registration Project Inc$3,500216%
Sonoma County Wildlife Rescue$3,25030%
Project Bandaloop$3,10040%
10000 Degrees$3,00020%
Petaluma River Park Foundation Inc$3,00040%
Farm to Pantry$2,76540%
Next Generation Scholars Inc$2,57520%
Seeds of Love$2,51531%
William J Brennan Center for Justice Inc$2,50010%
Listening for a Change$1,55031%
Far Away Projects$1,52510%
Sebastopol Community Cultural Center Incorporated$1,52520%
The East Oakland Collective$1,5001n/a
Laguna De Santa Rosa Foundation$1,50020%
Children's Museum of Sonoma County$1,50010%
Protect Democracy Project$1,50010%
Boise Public Schools Education Foundation Inc$1,50010%
Globalgiving Foundation Inc$1,26320%
The Multicultural Center of Marin$1,25130%
Pets Lifeline Inc$1,10020%
Alzheimer's Disease & Related Disorders Association Inc$1,10020%
Media Alliance$1,06910%
Downtown Streets Inc$1,03010%
Grace Solutions$1,0001n/a
Foundation for Lake Chapala Charities Inc$1,00010%
Brain Support Network$1,00010%
World Central Kitchen Inc$1,0001n/a
Petaluma Small Craft Center$1,00021%
International Bird Rescue$1,00010%
Voter Registration Project$1,00010%
Reel Medicine Media$1,00010%
Legal Aid of Sonoma County$1,00010%
Friends In Sonoma Helping Inc$1,00020%
The Bird Rescue Center$1,00010%
Gofundmeorg$96030%
California Film Institute$91520%
Thurgood Marshall College Fund$76020%
Larkin Street Youth Services$60020%
The American Independent Foundation$55010%
Point Reyes Bird Observatory$54210%
The Voter Participation Center$52520%
North Bay Organizing Project$52010%
John Jordan Foundation$51510%
Sonoma County Library Foundation$50010%
Groceries for Seniors$50010%
Jameson Animal Rescue Ranch$50010%
Old Friends Senior Dogs Inc$50010%
SF New Deal$50010%
Sonoma Family Meal$50010%
Amplify Voices$50010%
NAACP Legal Defense & Educ Fund Inc$50010%
The Spahr Center$50010%
Rainbow Railroad USA Inc$50010%
Border Angels$50010%
Mendocino Land Trust$50010%
Cat Town$50010%
Verity-Compassion Safety Support a California Corporation$50010%
Board Not Bored$5001n/a
Abortion Care Network$50010%
Santa Rosa Junior College Foundation$50010%
Bountiful Churchyards Inc$50010%
Alameda Family Services Inc$50010%
StarVista$35020%
Petaluma People Services Center$29610%
San Francisco Fire Fighters' Toy Program$26510%
Earth and Sky Inc$25810%
Vox United$25010%
Women for Afghan Women Inc$25010%
Gaude Inc$2501n/a
Climate Ride Inc$25010%
Thru The Bible Inc$25010%
Lowell Alumni Association$25010%
One Circle Foundation$22530%
Worth County Rams Alumni Reunion Inc$20014%
San Francisco Bicycle Coalition$17510%
St Augustine Humane Society Inc$15010%
Center for Volunteer & Nonprofit Leadership$14110%
Operation Smile Inc$10010%
World Wildlife Fund Inc$10010%
CaringBridge$10010%
Wilmar Volunteer Fire Department Inc$10010%
Community Housing Sonoma County$1001n/a
Committee on the Shelterless$5810%
Parkinson's Resources of Oregon$5010%
Ada Howe Kent Memorial Shelter Inc$2510%
Save a Pet Animal Rescue Inc$2510%
A Wider Bridge$2510%
Street Sense Inc$2510%
Safe Paws Rescue Inc$2510%
Marin Shakespeare Company$2510%
Edgewood Center for Children and Families$2510%
Rokeby Museum$2010%

What it could do for these grantees

Plus 106 recipients with no EIN on record ($164k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Weinreb Pilecki Segal Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetThe Living Room Center: $180,265 over 8y, 2.3% of budgetRebuilding Together Petaluma Inc: $48,855 over 7y, 2.8% of budgetHomeward Bound of Marin: $45,626 over 6y, 0.1% of budgetSonoma Applied Village Services: $22,132 over 6y, 4.1% of budgetHomeless Action Sonoma Inc: $15,500 over 3y, 2.3% of budgetWest County Community Services: $12,215 over 4y, 0.1% of budgetRedwood Empire Food Bank: $10,155 over 7y, 0.0% of budgetGaines-Jones Scholars: $9,263 over 7y, 19% of budgetSan Francisco Food Bank: $8,750 over 4y, 0.0% of budgetRuthless Kindness: $8,648 over 5y, 0.5% of budgetFood for Thought: $7,969 over 5y, 0.1% of budgetKqed Inc: $6,300 over 6y, 0.0% of budgetStart Soco: $5,200 over 5y, 2.3% of budgetSouthern Poverty Law Center Inc: $5,000 over 2y, 0.0% of budgetFree to Be: $4,500 over 2y, 0.9% of budgetUna Vida: $4,100 over 2y, 3.5% of budgetPeople for the American Way: $4,000 over 1y, 0.1% of budgetCompassion Without Borders: $4,000 over 2y, 0.2% of budgetAlameda Emergency Food DBA Alameda Food Bank: $4,000 over 1y, 0.0% of budgetWelcoming Home: $3,800 over 4y, 0.8% of budgetThe Registration Project Inc: $3,500 over 2y, 16% of budgetSonoma County Wildlife Rescue: $3,250 over 3y, 0.0% of budgetProject Bandaloop: $3,100 over 4y, 0.1% of budget10000 Degrees: $3,000 over 2y, 0.0% of budgetPetaluma River Park Foundation Inc: $3,000 over 4y, 0.2% of budgetFarm to Pantry: $2,765 over 4y, 0.3% of budgetNext Generation Scholars Inc: $2,575 over 2y, 0.3% of budgetSeeds of Love: $2,515 over 3y, 0.6% of budgetWilliam J Brennan Center for Justice Inc: $2,500 over 1y, 0.0% of budgetListening for a Change: $1,550 over 3y, 0.7% of budgetFar Away Projects: $1,525 over 1y, 0.2% of budgetSebastopol Community Cultural Center Incorporated: $1,525 over 2y, 0.1% of budgetLaguna De Santa Rosa Foundation: $1,500 over 2y, 0.1% of budgetChildren's Museum of Sonoma County: $1,500 over 1y, 0.1% of budgetProtect Democracy Project: $1,500 over 1y, 0.0% of budgetBoise Public Schools Education Foundation Inc: $1,500 over 1y, 0.0% of budgetGlobalgiving Foundation Inc: $1,263 over 2y, 0.0% of budgetThe Multicultural Center of Marin: $1,251 over 3y, 0.0% of budgetPets Lifeline Inc: $1,100 over 2y, 0.1% of budgetAlzheimer's Disease & Related Disorders Association Inc: $1,100 over 2y, 0.0% of budgetMedia Alliance: $1,069 over 1y, 0.1% of budgetDowntown Streets Inc: $1,030 over 1y, 0.0% of budgetFoundation for Lake Chapala Charities Inc: $1,000 over 1y, 0.2% of budgetBrain Support Network: $1,000 over 1y, 0.2% of budgetPetaluma Small Craft Center: $1,000 over 2y, 0.5% of budgetInternational Bird Rescue: $1,000 over 1y, 0.0% of budgetVoter Registration Project: $1,000 over 1y, 0.0% of budgetReel Medicine Media: $1,000 over 1y, 0.1% of budget

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 106.

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.

Sonoma County Community FoundationCA60.5× affinity29 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sonoma County Community Foundation · Marin Community Foundation · McNabb Foundation · Bothin Foundation · Sonoma County Vintners Foundation · The San Francisco Foundation · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Peter E Haas Jr Family Fund · The Heck Foundation · Heffernan Group Foundation · Exchange Bank Foundation · Bethlehem Foundation - Agy Main

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 Weinreb Pilecki Segal Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Weinreb Pilecki Segal Foundation?

Find your warmest path to Weinreb Pilecki Segal 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 Weinreb Pilecki Segal Foundation

How much does Weinreb Pilecki Segal Foundation give?
Weinreb Pilecki Segal Foundation reported 69 grants totaling $93,425 in its FY2025 IRS filing. It funded between 7 and 73 organizations a year over FY2018 to FY2024.
What does Weinreb Pilecki Segal Foundation fund?
By grant dollars over FY2018 to FY2025, its largest causes are Human Services (32%), Housing & Shelter (21%), Education (6%).
Who are Weinreb Pilecki Segal Foundation's largest grantees?
By total granted over FY2018 to FY2025: The Living Room Center ($180k), Rebuilding Together Petaluma Inc ($49k), Homeward Bound of Marin ($46k).
Does Weinreb Pilecki Segal Foundation fund new organizations?
In FY2024, 41% of the organizations it funded were first-time grantees.
Does Weinreb Pilecki Segal Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Weinreb Pilecki Segal Foundation?
Its strongest co-funders, measured against what their size predicts, include Sonoma County Community Foundation, Marin Community Foundation, McNabb Foundation.
Where is Weinreb Pilecki Segal Foundation based?
Weinreb Pilecki Segal Foundation is based in CA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 225 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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