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· Private foundation

Brooks-Mathews Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$204k
Granted FY2025still arriving
8
Grants FY2025still arriving
4
States reached
$70k
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
05Through PlinthRead
01What you fund
01100% classified

What you funded, over time

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

Recreation & Sports$2.0MEducation$1.6MArts & Culture$1.1MEnvironment$765kCommunity Improvement$537kScience & Tech$100kHealth$91kYouth Development$90kOther$0
02FY2025 · 8 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k3 grants · $16k
  • $10k–50k3 grants · $68k
  • $50k–250k2 grants · $120k
$25,000
Median grant
4
States reached
$196k
Total assets
Largest grants
RecipientAmount
Natl Sailing Hall of Fame Museum$70,000
Asian Art Museum Fdn of SF$50,000
National Maritime Historical Societ$25,000
UCSF Foundation$25,000
Int'l Yacht Restoration School$17,500
STFYC International Yacht Racing Fd$8,000
Newport Historical Society$7,500
St Francis Sailing Foundation$500
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 9%, against an area that typically sits at 8%. 46% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.

area typical 8%Conservation International: $240k → 8%Oakland Military Institute: $50k → 10%National Maritime Historical Societ: $32k → 9%Bella Mente Quantum Racing Associat: $100k → 16%Th USMMA Sailing Foundation Inc: $80k → 10%Int'l Yacht Restoration School: $338k → 7%Natl Sailing Hall of Fame Museum: $250k → 6%Conservation International: $175k → 8%Oakland Military Institute: $50k → 10%Th USMMA Sailing Foundation Inc: $30k → 10%Int'l Yacht Restoration School: $310k → 7%Natl Sailing Hall of Fame Museum: $225k → 6%Conservation International: $100k → 8%Asian Art Museum Fdn of SF: $50k → 10%New York Yacht Club Foundation: $115k → 17%Int'l Yacht Restoration School: $307k → 7%Natl Sailing Hall of Fame Museum: $200k → 6%Conservation International: $95k → 8%Asian Art Museum Fdn of SF: $50k → 10%New York Yacht Club Foundation: $108k → 17%Int'l Yacht Restoration School: $170k → 7%Natl Sailing Hall of Fame Museum: $200k → 6%Conservation International: $80k → 8%Asian Art Museum Fdn of SF: $50k → 10%New York Yacht Club Foundation: $104k → 17%Int'l Yacht Restoration School: $125k → 7%Natl Sailing Hall of Fame Museum: $200k → 6%Conservation International: $75k → 8%Asian Art Museum Fdn of SF: $50k → 10%New York Yacht Club Foundation: $100k → 17%Int'l Yacht Restoration School: $68k → 7%Natl Sailing Hall of Fame Museum: $70k → 6%Asian Art Museum Fdn of SF: $50k → 10%New York Yacht Club Foundation: $100k → 17%Sail Newport: $40k → 7%Asian Art Museum Fdn of SF: $50k → 10%Asian Art Museum Fdn of SF: $50k → 10%Asian Art Museum Fdn of SF: $50k → 10%STFYC International Yacht Racing Fd: $295k → 10%STFYC International Yacht Racing: $145k → 10%STFYC International Yacht Racing Fd: $100k → 10%STFYC International Yacht Racing Fd: $50k → 10%UC Berkeley Foundation: $50k → 10%UC Berkeley Foundation: $50k → 10%San Francisco Art Institute: $365k → 10%San Francisco Art Institute: $100k → 10%San Francisco Art Institute: $60k → 10%San Francisco Art Institute: $55k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

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

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

94%of every dollar goes to organizations you’ve funded before.
$6.0M · 22 repeat orgs$377k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +46% since the first grant, against -26% for the ones you funded once.

22 repeat relationships — 7 still active in FY2025, 15 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

22
20

Total granted

$6.0M
$352k

Median revenue growth · since first grant

+46%
-26%

Still filing today

73%
35%

New vs renewed · share of each year

In FY2025, 88% of grant dollars renewed an existing relationship; $25k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Recreation & SportsEducationArts & CultureHealthCommunity ImprovementHousing & ShelterOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.

Backed again, and grew

  • IS
    IYRS SCHOOL OF TECHNOLOGY & TRADES INC
    9× · 2017–2025 · $1.4M · revenue +15%
  • NY
    NEW YORK YACHT CLUB FOUNDATION
    6× · 2017–2022 · $537k · revenue +132%
  • TU
    THE USMMA SAILING FOUNDATION INC
    2× · 2019–2020 · $110k · revenue +132%

Funded once

  • SI
    STFYC International Yacht Racing
    one grant, 2017 · $145k
  • BM
    Bella Mente Quantum Racing Associat
    one grant, 2022 · $100k
  • TS
    THE SAILING FOUNDATION OF NEW YORK INC
    one grant, 2023 · $25k · revenue -56%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
Santa Cruz Sailing Foundation
Philanthropy
2
Encinal Sailing Foundation
Philanthropy
3
San Diego Yacht Club Sailing Foundation

Promote national and international amateur sailing, maritime education and competition. the foundation supports these activities through outreach programs, training activities, provision of sailing equipment and facilities and…

Recreation & Sports
4
The San Francisco Yacht Club

The organization is an exempt social club under irc section 501(c)(7), whose program service activities are organized and operated substantially for the pleasure & recreation of its members. all programs of the club are related to the…

—
5
Newport Harbor Sailing Foundation

Promotion of amateur sailing

Recreation & Sports
6
East Bay Sailing Foundation

Sailing school

Education
7
Us Sailing Foundation of Martin County Inc
—
8
American Yacht Club Foundation

Mission Statement To promote, develop, and maintain sailing education activities; Continued on attached statement

Arts & Culture
9
Skiff Sailing Foundation

To promote and provide public access to sailing. To promote National and International competition.

Recreation & Sports
10
St Petersburg Sailing Foundation Inc
Recreation & Sports
11
National Sailing Hall of Fame & Museum Inc

The organization preserves the history of sailing and its impact on american culture; honors those who have made outstanding contributions to the sport; demonstrates its value for scholastic and life skills learning; and encourages sailing…

Arts & Culture
12
No Salt Sailing
Recreation & Sports

For reference, the grantee most central to the portfolio’s shape is Nantucket Community Sailing Inc and the most unlike its peers is Lehrhaus Judaica dba Hamaqom the Place. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 41 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%4%5–10yr19%13%10–20yr16%29%20–35yr13%25%35–55yr16%29%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%0%5–10yr19%19%10–20yr16%56%20–35yr13%5%35–55yr16%20%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/28
the rest of the field
13%
240,396/1,819,537

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

26 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 26 of the 43 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
24/26
Grantees still filing
12/26
Grew since you first funded

Where your money sits — by cause, then by grantee

Natl Sailing Hall of Fame Museum — $1,155,000 · OtherNatl Sailing Hall of Fame MuseumConservation International — $765,000 · OtherConservation InternationalSAN FRANCISCO ART INSTITUTE — $605,000 · OtherSAN FRANCISCO ART INSTITUTESTFYC International Yacht Racing Fd — $453,000 · OtherSTFYC International Yacht Racing FdSTFYC International Yacht Racing — $144,500 · Other+19 more — $544,700 · Other+19 moreIYRS SCHOOL OF TECHNOLOGY & TRADES INC — $1,368,565 · Arts & CultureIYRS SCHOOL OF TECHNOLOGY & TRA…ASIAN ART MUSEUM FOUNDATION OF SAN FRANCISCO — $400,000 · Arts & CultureASIAN ART MUSEUM FOUNDATION OF …+2 more — $13,600 · Arts & CultureNEW YORK YACHT CLUB FOUNDATION — $537,000 · Community ImprovementNEW YORK …THE USMMA SAILING FOUNDATION INC — $110,000 · EducationOAKLAND MILITARY INSTITUTE COLLEGE PREPARATORY ACADEMY — $100,000 · EducationUNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION — $25,000 · EducationUNIVERSITY OF RHODE ISLAND FOUNDATION & ALUMNI ENGAGEMENT — $20,000 · EducationTOWN SCHOOL FOR BOYS — $10,000 · EducationSAIL NEWPORT — $54,687 · Recreation & SportsTHE SAILING FOUNDATION OF NEW YORK INC — $25,000 · Recreation & SportsTHE STORM TRYSAIL FOUNDATION — $5,650 · Recreation & SportsClassic Yacht Owners Association — $5,000 · Recreation & Sports+1 more — $2,000 · Recreation & SportsSCRIPPS HEALTH — $20,000 · HealthPACIFIC VISION FOUNDATION — $10,000 · HealthSAIL TO PREVAIL — $2,000 · HealthEAST BAY INNOVATIONS INC — $4,000 · Housing & Shelter
Other$3,667,200Arts & Culture$1,782,165Community Improvement$537,000Education$265,000Recreation & Sports$92,337Health$32,000Housing & Shelter$4,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your 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 budgetSCRIPPS HEALTH — $20,000 over 3y, 0.0% of budgetUNIVERSITY OF RHODE ISLAND FOUNDATION & ALUMNI ENGAGEMENT — $20,000 over 2y, 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 budgetClassic Yacht Owners Association — $5,000 over 2y, 8.5% of budgetNEWPORT BERMUDA RACE FOUNDATION INC — $5,000 over 1y, 11% 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
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Jewish Community Fede…Lyn & Margaret Comfor…Richard and Ann Du Mo…Kane Wallace Foundati…Ernst & Elfriede Fran…Hamilton Family Found…Winifred M Purdy Foun…James M Schoonmaker I…Gubelmann Family Foun…Harbor Lights Foundat…The Seip Family Found…Alletta Morris McBean…
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

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

Government reliance of your grantees

Every dot is one organization Brooks-Mathews Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%your share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    3report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    typical government reliance, FY20–25

    Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.

    05Through Plinth

    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.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 43 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

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

    Source object · view filing

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home