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Plinth

· Private foundation

The Robertson Foundation

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$152k
Granted FY2025still arriving
21
Grants FY2025still arriving
4
States reached
$50k
Largest
01What you fund
0198% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Arts & Culture$529kEnvironment$380kHealth$239kInternational$166kCivil Rights$91kEducation$60kHuman Services$43kPhilanthropy$39kOther$0
02FY2025 · 21 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k16 grants · $26k
  • $10k–50k4 grants · $76k
  • $50k–250k1 grant · $50k
$1,000
Median grant
4
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
BUZZARDS BAY COALITION$50,000
PLANNED PARENTHOOD OF SO NEW ENG$25,000
PUBLIC'S RADIO$20,000
DESIGN ART TECHNOLOGY MASSACHUSETTS$16,000
NEW ENG FIRST AMENDMENT COALITION$15,000
TRINITY REPERTORY COMPANY$8,000
THE NEWFORD BEDFORD LIGHT$5,000
OUR SISTERS SCHOOL$4,000
COASTAL NEIGHBORS NETWORK$2,500
FOUNDATION FOR WEST AFRICA$1,500
WGBH EDUCATIONAL FOUNDATION$1,000
MARION INSTITUTE$1,000
NATIONAL PARK FOUNDATION$500
THE TOMORROW FUND$500
ZEITERION PERFORMING ARTS CENTER$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:

Your human-services grants (FY17–25, $10k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.

area typical 10%FOUNDATION FOR WEST AFRICA: $2k → 7%FOUNDATION FOR WEST AFRICA: $2k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%FOUNDATION FOR WEST AFRICA: $1k → 7%IMMIGRANTS ASSISTANCE CENTER: $40 → 11%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

NH
WA
NY
MA
WY
RI
VA
DC

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.

93%of every dollar goes to organizations you’ve funded before.
$1.7M · 35 repeat orgs$119k to everyone else

35 repeat relationships — 20 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

35
26

Total granted

$1.7M
$118k

Median revenue growth · since first grant

+17%
+37%

Still filing today

51%
46%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $1k 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
EnvironmentArts & CultureHuman ServicesPhilanthropyFood & NutritionEducationOther

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

  • BUZZARDS BAY COALITION
    8× · 2018–2025 · $327k · revenue +83%
  • TM
    The Mustique Charitable Foundation
    8× · 2017–2024 · $156k · revenue +106%
  • OS
    OUR SISTERS SCHOOL
    9× · 2017–2025 · $54k · revenue +52%

Funded once

  • IG
    Individual grant recipient
    one grant, 2017 · $50k
  • NE
    NEW ENGLAND FIRST AMENDMENT
    one grant, 2017 · $15k
  • CA
    CHILDREN'S ADVOCACY CENTER
    one grant, 2019 · $15k

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
The Quebec-Labrador Foundation Inc

The program mission of the quebec-labrador foundation u.s. is defined by a regional component (new england and eastern canada), and an international component, which ties our regional model to a global conservation network. qlf's program…

Philanthropy
2
The Norman Bird Sanctuary Trust

Our mission is to spark people's curiosity to explore, steward, and find peace and joy in nature. in service to this, norman bird sanctuary inspires, builds, and engages a community of stewards who preserve, protect, enjoy, and learn from…

Animals
3
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
4
Isabella Stewart Gardner Museum Inc

Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…

Arts & Culture
5
Conservation International Foundation

Ci works to spotlight and secure the critical benefits that nature provides to humanity.

Environment
6
Native Plant Trust Inc

The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.

Environment
7
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
8
Lowell Observatory

The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…

Science & Tech
9
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

10
Montauk Historical Society

The purpose of the montauk historical society is to collect, restore, preserve and display historically significant buildings, objects and writings and to preserve and share the history and cultures of montauk and the east end for this and…

Arts & Culture
11
Rhode Island School of Design

The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…

Education
12
The Trustees of Reservations

Overview - founded in boston by pioneering landscape architect and open space visionary charles eliot in 1891, the trustees is the nation's first and the commonwealth's largest conservation and preservation nonprofit.

Environment

For reference, the grantee most central to the portfolio’s shape is Save the Bay Inc and the most unlike its peers is Metropolitan Museum of Art. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.

← shrinkinggrowing →↓ leaning in → pulling backsteadyGovernment Accountability R…Land Conservation Organizat…Community Arts OrganizationsCancer Support OrganizationsJewish Community FederationsEnvironmental Advocacy Orga…Legal Aid & Immigration Ser…Urban Agriculture & Food Ac…Independent K-8 SchoolsSenior Support ServicesCommunity Foundations
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.

Your grantees are a median of 38 years old; the field is 17. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number20%0%<5yr14%3%5–10yr20%22%10–20yr19%13%20–35yr14%34%35–55yr14%28%55yr+
THE FIELDby orgYOUR MONEYby value20%0%<5yr14%0%5–10yr20%39%10–20yr19%2%20–35yr14%57%35–55yr14%1%55yr+

The field is 20% 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 11% of the field you don’t fund.

orgs you fund
0.0%0/33
the rest of the field
11%
4,714/42,325

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

32 grantees tracked through their own filings, 2017–2026.

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 20172026, not grant rows in a single year — so this will not match the grant count on the cover. 32 of the 63 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)
6
Early backer (in before they grew)
32/32
Grantees still filing
25/32
Grew since you first funded

Where your money sits — by cause, then by grantee

PLANNED PARENTHOOD OF SO NEW ENG — $185,100 · OtherPLANNED PARENTHOOD OF SO NEW ENGIndividual grant recipient — $140,000 · OtherIndividual grant recipientDATMA — $118,720 · OtherDATMAIndividual grant recipient — $100,000 · OtherIndividual grant recipientNEW ENG FIRST AMENDMENT COALITION — $90,100 · OtherNEW ENG FIRST AMENDMENT COALITIONTHE PUBLIC'S RADIO — $81,500 · OtherTHE PUBLIC'S RADIOIndividual grant recipient — $75,000 · OtherIndividual grant recipientDESIGN ART TECHNOLOGY MASSACHUSETTS — $68,143 · OtherDESIGN ART TECHNOLOGY MASSACHUSETTSRHODE ISLAND PUBLIC RADIO — $60,000 · OtherPLANNED PARENTHOOD OF RI — $50,000 · OtherIndividual grant recipient — $50,000 · OtherCOASTAL NEIGHBORS NETWORK INC — $42,500 · Other+30 more — $132,468 · Other+30 moreBUZZARDS BAY COALITION — $327,000 · EnvironmentBUZZARDS BAY COALITI…+6 more — $1,460 · EnvironmentThe Mustique Charitable Foundation — $156,000 · PhilanthropyThe Musti…+1 more — $1,000 · PhilanthropyTrinity Repertory Company — $36,000 · Arts & CultureZEITERION THEATRE INC — $12,000 · Arts & CultureWGBH Educational Foundation — $7,000 · Arts & Culture+4 more — $865 · Arts & CultureOUR SISTERS SCHOOL — $53,850 · EducationTHE FOUNDATION FOR WEST AFRICA — $10,000 · Human Services+2 more — $290 · Human ServicesTHE LIVESTOCK INSTITUTE OF SOUTHERN NEW ENGLAND INC — $10,000 · Food & Nutrition
Other$1,193,531Environment$328,460Philanthropy$157,000Arts & Culture$55,865Education$53,850Human Services$10,290Food & Nutrition$10,000

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 budgetBUZZARDS BAY COALITION — $327,000 over 8y, 0.7% of budgetThe Mustique Charitable Foundation — $156,000 over 8y, 6.0% of budgetRHODE ISLAND PUBLIC RADIO — $60,000 over 2y, 0.9% of budgetOUR SISTERS SCHOOL — $53,850 over 9y, 0.4% of budgetCOASTAL NEIGHBORS NETWORK INC — $42,500 over 8y, 2.8% of budgetTrinity Repertory Company — $36,000 over 4y, 0.1% of budgetZEITERION THEATRE INC — $12,000 over 2y, 0.2% of budgetTHE LIVESTOCK INSTITUTE OF SOUTHERN NEW ENGLAND INC — $10,000 over 1y, 1.7% of budgetTHE FOUNDATION FOR WEST AFRICA — $10,000 over 9y, 12% of budgetWGBH Educational Foundation — $7,000 over 6y, 0.0% of budgetWATERFIRE PROVIDENCE — $3,500 over 7y, 0.1% of budgetTHE TOMORROW FUND — $3,000 over 4y, 0.1% of budgetAMOS HOUSE — $1,250 over 2y, 0.0% of budgetNEW YORK YACHT CLUB FOUNDATION — $1,050 over 3y, 0.0% of budgetNATIONAL PARK FOUNDATION — $700 over 3y, 0.0% of budgetWORLD WILDLIFE FUND INC — $600 over 5y, 0.0% of budgetPROVIDENCE CHILDREN'S MUSEUM — $500 over 1y, 0.0% of budgetPARKINSON'S FOUNDATION INC — $250 over 1y, 0.0% of budgetCROSSROADS RHODE ISLAND — $250 over 1y, 0.0% of budgetTHE NATURE CONSERVANCY — $230 over 3y, 0.0% of budgetThe United States Holocaust Memorial Museum — $200 over 2y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC — $200 over 2y, 0.0% of budgetRound the Bend Farm Inc — $200 over 2y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART — $110 over 1y, 0.0% of budgetNATIONAL WILDLIFE FEDERATION — $100 over 1y, 0.0% of budgetLoon Preservation Committee — $100 over 1y, 0.0% of budgetSMITHSONIAN INSTITUTION — $55 over 1y, 0.0% of budgetIMMIGRANTS' ASSISTANCE CENTER INC — $40 over 1y, 0.0% of budgetENVIRONMENTAL DEFENSE FUND INCORPORATED — $35 over 1y, 0.0% of budgetNATIONAL OUTDOOR LEADERSHIP SCHOOL — $25 over 1y, 0.0% 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.

  • Who funds BUZZARDS BAY COALITION
  • Who funds The Mustique Charitable Foundation
  • Who funds RHODE ISLAND PUBLIC RADIO
  • Who funds OUR SISTERS SCHOOL
  • Who funds COASTAL NEIGHBORS NETWORK INC
  • Who funds Trinity Repertory Company
  • Who funds ZEITERION THEATRE INC
  • Who funds THE LIVESTOCK INSTITUTE OF SOUTHERN NEW ENGLAND INC
  • Who funds THE FOUNDATION FOR WEST AFRICA
  • Who funds WGBH Educational Foundation
  • Who funds WATERFIRE PROVIDENCE
  • Who funds THE TOMORROW FUND
  • Who funds AMOS HOUSE
  • Who funds NEW YORK YACHT CLUB FOUNDATION
  • Who funds THE MARION INSTITUTE INC

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.

Boston Foundation IncMA19.7× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Boston Foundation Inc · Amica Companies Foundation · The Carney Family Charitable Foundation · Alvord Family Foundation · Southcoast Community Foundation Inc · Textron Charitable Trust Dtd 122353 · Grimshaw-Gudewicz Charitable Foundation A Shabshelowitz Co-Trustee · June Rockwell Levy Foundation Incorporated · Bristol County Savings Charitable Foundation Inc · United Way of Rhode Island Inc · The Rhode Island Community Foundation · The New York Community 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 The Robertson 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, a single department, or state — and drag the year to watch it move.

2024
202122232425
no gov · 00%1%4%8%15%your share of their income ↑0%19%38%56%75%share of the org’s income from governmentmedian 4%
  • Buzzards Bay Coalition37% of income from government
  • Immigrants' Assistance Center Inc14% of income from government
  • Round the Bend Farm Inc11% of income from government
  • Zeiterion Theatre Inc4% of income from government
  • The Marion Institute Inc1% of income from government
  • Wgbh Educational Foundation1% of income from government
  • Our Sisters School0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–75%
typical government reliance, FY2025

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.

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 63 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