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California · Private foundation

Brooks-Mathews Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$204k
Granted FY2025(still arriving)
8
Grants FY2025
6
Organizations funded FY2024
33%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$25,000
Largest grant, FY2025
$70,000
Organizations funded a year
6 to 22
FY2018 to FY2024
States reached, FY2025
4
Total assets, FY2025
$196k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 33% of the organizations Brooks-Mathews Foundation funded were first-time grantees, receiving 2% of its grant dollars.

New vs renewed · share of each year

In FY2024, 98% of grant dollars renewed an existing relationship; $12k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

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

’18’19’20’21’22’23’24
EducationRecreation & SportsHealthArts & CultureHousing & ShelterOther
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 arriving8$204k13%
FY20246$478k33%
FY20238$648k13%
FY202211$679k18%
FY202111$619k9%
FY202014$1.1M29%
FY201922$1.2M41%
FY201812$755k42%
100% classified

What it funded, over time

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

Recreation & Sports$2.0MEducation$1.6MArts & Culture$1.1MEnvironment$765kCommunity Improvement$537kScience & Tech$100kHealth$91kYouth Development$90kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
WA
ID
NY
MA
NJ
RI
CA
CO
MD
TN
FL

Top grantees

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

Show all 28 grantees

What it could do for these grantees

Plus 15 recipients with no EIN on record ($2.9M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Brooks-Mathews Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetIyrs School of Technology & Trades Inc: $1,368,565 over 9y, 8.0% of budgetSan Francisco Art Institute: $605,000 over 5y, 1.9% of budgetNew York Yacht Club Foundation: $537,000 over 6y, 9.8% of budgetAsian Art Museum Foundation of San Francisco: $400,000 over 8y, 0.2% of budgetThe Usmma Sailing Foundation Inc: $110,000 over 2y, 1.3% of budgetNational Maritime Historical Society: $106,600 over 4y, 4.2% of budgetOakland Military Institute College Preparatory Academy: $100,000 over 2y, 0.3% of budgetSt Francis Sailing Foundation: $58,500 over 5y, 4.5% of budgetSail Newport: $54,687 over 3y, 0.7% of budgetThe Sailing Foundation of New York Inc: $25,000 over 1y, 1.8% of budgetUniversity of California San Francisco Foundation: $25,000 over 1y, 0.0% of budgetUniversity of Rhode Island Foundation & Alumni Engagement: $20,000 over 2y, 0.0% of budgetScripps Health: $20,000 over 3y, 0.0% of budgetTown School for Boys: $10,000 over 1y, 0.1% of budgetPacific Vision Foundation: $10,000 over 1y, 0.4% of budgetNewport Historical Society: $9,000 over 2y, 0.1% of budgetThe Storm Trysail Foundation: $5,650 over 1y, 0.7% of budgetNewport Bermuda Race Foundation Inc: $5,000 over 1y, 11% of budgetClassic Yacht Owners Association: $5,000 over 2y, 8.5% of budgetLehrhaus Judaica dba HAMAQOM The Place: $5,000 over 1y, 0.3% of budgetEast Bay Innovations Inc: $4,000 over 4y, 0.0% of budgetSail to Prevail: $2,000 over 1y, 0.2% of budgetNantucket Community Sailing Inc: $2,000 over 2y, 0.1% of budgetCastro Valley Girls Softball League: $500 over 1y, 0.6% 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 24.

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.

Jewish Community Federation of San Francisco the Peninsula Marin & SonomaCA16.4× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · Lyn & Margaret Comfort Charitable Foundation · Richard and Ann Du Moulin Foundation · Kane Wallace Foundation · Ernst & Elfriede Frank Foundation Inc · Hamilton Family Foundation · Winifred M Purdy Foundation · James M Schoonmaker II Foundation · Gubelmann Family Foundation Inc · Harbor Lights Foundation · The Seip Family Foundation Limited Eevercore Trust CO C/O Ashley Ferriello · Alletta Morris McBean Charitable Trust

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 Brooks-Mathews Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Brooks-Mathews Foundation?

Find your warmest path to Brooks-Mathews 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 Brooks-Mathews Foundation

How much does Brooks-Mathews Foundation give?
Brooks-Mathews Foundation reported 8 grants totaling $203,500 in its FY2025 IRS filing. It funded between 6 and 22 organizations a year over FY2018 to FY2024.
What does Brooks-Mathews Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Recreation & Sports (32%), Education (25%), Arts & Culture (18%).
Who are Brooks-Mathews Foundation's largest grantees?
By total granted over FY2017 to FY2025: Iyrs School of Technology & Trades Inc ($1.4M), San Francisco Art Institute ($605k), New York Yacht Club Foundation ($537k).
Does Brooks-Mathews Foundation fund new organizations?
In FY2024, 33% of the organizations it funded were first-time grantees.
Does Brooks-Mathews Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Brooks-Mathews Foundation?
Its strongest co-funders, measured against what their size predicts, include Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma, Lyn & Margaret Comfort Charitable Foundation, Richard and Ann Du Moulin Foundation.
Where is Brooks-Mathews Foundation based?
Brooks-Mathews 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 43 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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