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The Peter and Carmen Lucia Buck Foundation Inc at a glance

· Private foundation

The Peter and Carmen Lucia Buck Foundation Inc

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.

$106M
Granted FY2025still arriving
182
Grants FY2025still arriving
19
States reached
$10M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Education$171MEnvironment$29MCommunity Improvement$8.4MInternational$8.4MHealth$8.0MScience & Tech$5.4MHuman Services$5.2MYouth Development$3.3MOther$0
02FY2025 · 182 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k10 grants · $29k
  • $10k–50k35 grants · $750k
  • $50k–250k64 grants · $8.0M
  • $250k+73 grants · $98M
$150,000
Median grant
19
States reached
$2.8B
Total assets
Largest grants
RecipientAmount
KIPP FOUNDATION$10,000,000
MIND TRUST THE$9,400,000
ZETA CHARTER SCHOOLS$4,250,000
NEW LEADERS$3,600,000
SUCCESS ACADEMY CHARTER SCHOOLS$3,500,000
ACHIEVEMENT FIRST$3,500,000
LAKE GEORGE LAND CONSERVANCY$3,000,000
TEACHORG$2,630,000
ELEVATE CHARTER SCHOOLS$2,500,000
MEDECINS SANS FRONTIERES USA$2,500,000
COLUMBIA UNIVERSITY$2,493,500
CONNECTICUT STATE COLLEGES AND UNIVERSITIES$2,480,000
50CAN$2,256,900
LEADERSHIP FOR EDUCATIONAL EQUITY FOUNDATION$2,100,000
THIRD SECTOR NEW ENGLAND$2,100,000
02The need
03

Does the money reach high-need areas?

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

show:

Its human-services grants (FY21–25, $4.1M) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 85% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%MALDEN WARMING CENTER: $5k → 8%TIDES CENTER: $125k → 10%OCEAN COMMUNITY YMCA: $60 → 7%LEADERSHIP FOR EDUCATIONAL EQUITY FOUNDATION: $475k → 14%REGIONAL YMCA OF WESTERN CONNECTICUT: $110k → 9%REGIONAL YMCA OF WESTERN CONNECTICUT: $95k → 9%REGIONAL YMCA OF WESTERN CONNECTICUT: $65k → 9%REGIONAL YMCA OF WESTERN CONNECTICUT: $65k → 9%REGIONAL YMCA OF WESTERN CONNECTICUT: $55k → 9%FAMILIES NETWORK OF WESTERN CONNECTICUT: $25k → 9%FAMILIES NETWORK OF WESTERN CONNECTICUT: $25k → 9%FAMILIES NETWORK OF WESTERN CONNECTICUT: $25k → 9%FAMILIES NETWORK OF WESTERN CONNECTICUT: $15k → 9%EXPANDED SCHOOLS: $200k → 17%EXPANDED SCHOOLS: $200k → 17%EXPANDED SCHOOLS INC: $200k → 17%EXPANDED SCHOOLS: $200k → 17%EXPANDED SCHOOLS: $100k → 17%LEADERSHIP FOR EDUCATIONAL EQUITY FOUNDATION: $2.1M → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
VT
WA
IL
MI
NY
MA
OR
IN
PA
NJ
CT
RI
CA
CO
VA
MD
AZ
NC
DC
GA
TX
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

85%of every dollar goes to organizations it has funded before.
$207M · 175 repeat orgs$37M to everyone else

Grantees it renews have grown median revenue +14% since the first grant, against +0% for those funded once.

175 repeat relationships: 125 still active in FY2025, 50 since wound down; 42 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

175
63

Total granted

$207M
$9.7M

Median revenue growth · since first grant

+14%
+0%

Still filing today

68%
46%

New vs renewed · share of each year

In FY2025, 74% of grant dollars renewed an existing relationship; $27M went to new ones.

50%100%’21’22’23’24’25
RenewedFirst-time

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

’21’22’23’24’25
EducationEnvironmentHealthArts & CulturePhilanthropyHuman 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.

Backed again, and grew

  • TM
    THE MIND TRUST INC
    2× · 2024–2025 · $11M · revenue +18%
  • KF
    KIPP FOUNDATION
    4× · 2021–2025 · $11M · revenue +64%
  • 5I
    50CAN INC
    5× · 2021–2025 · $10.0M · revenue +562%

Funded once

  • SS
    SCHOOL STATE FINANCE PROJECT
    one grant, 2023 · $1.6M
  • JA
    JUMOKE ACADEMY CHARTER SCHOOLS
    one grant, 2023 · $755k
  • NY
    NEW YORK CITY CENTER FOR CHARTER SCHOOL EXCELLENCEgraduated
    one grant, 2021 · $695k · revenue +76%
How this is measured

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

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
2
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
3
Eastern National

Eastern national promotes the public's understanding and support of america's national parks and other public trust partners by providing quality educational experiences, products and services.

Recreation & Sports
4
The Common Application Inc

The common application is a not-for-profit membership organization of over 1,100 colleges and universities across the globe committed to access, equity, and integrity in the college admission process. every year, over 1.5 million students…

Education
5
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
6
Connecticut Farmland Trust Inc

Protect Connecticuts farmland for agricultural use by purchasing and accepting donations of agricultural conservation easements

Food & Nutrition
7
Connecticut Public Broadcasting Inc

Connecticut public broadcasting, inc. will inform, educate and inspire the people of connecticut, connecting and empowering the people of ct through outstanding journalism, storytelling, education and experiences, to make our state a more…

Arts & Culture
8
South Shore Charter School

The mission of south shore charter school is to cultivate students the tenacity, integrity, and curiosity needed to become innovative and socially responsible leaders, ready to face and solve the ever-changing challenges facing our…

Education
9
Stamford Charter School for Excellence

The stamford charter school for excellence prepares young people in stamford, connecticut to compete for admission to and succeed in top public, private and parochial high schools by cultivating their intellectual, artistic, social,…

Education
10
Bronx Charter School for Excellence

Excellence community schools prepares young people in new york city and stamford to compete for admission to and succeed in top public, private and parochial high schools by cultivating their intellectual, artistic, social, emotional, and…

Education
11
New York League of Conservation Voters Education Fund

See schedule onylcvef's mission is to educate, engage and empower new yorkers to be effective advocates on behalf of the environment from clean energy and funding for parks, to solid waste and green buildings. first, we educate new yorkers…

Environment
12
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
How this is measured
The grantee most central to the portfolio’s shape is Expanded Schools Inc; the most unlike its peers is Retro Report Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

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

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 180 of the 286 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

14
Load-bearing (≥25% of a budget)
33
Early backer (in before they grew)
179/180
Grantees still filing
105/180
Grew since first funded

Where the money sits, by cause and then by grantee

ACHIEVEMENT FIRST INC: $20,975,000 · EducationACHIEVEMENT FIRST INCTHE MIND TRUST INC: $11,425,000 · EducationTHE MIND TRUST INCKIPP FOUNDATION: $10,800,000 · EducationKIPP FOUNDATION50CAN INC: $9,970,000 · Education50CAN INCELEVATE CHARTER SCHOOLS INC: $8,885,000 · EducationELEVATE CHARTER SCHOOLS INCCAPITAL PREPARATORY SCHOOLS INC: $8,500,000 · EducationCAPITAL PREPARATORY SCHOOLS INCTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $8,020,000 · EducationTEACHorg Inc: $6,695,000 · EducationSUCCESS ACADEMY CHARTER SCHOOLS INC: $6,200,000 · EducationNORTHEAST CHARTER SCHOOLS NETWORK INC: $6,000,000 · EducationEXCELLENCE COMMUNITY SCHOOLS INC: $5,550,000 · Education+47 more: $50,326,500 · Education+47 moreEQUABLE INSTITUTE: $2,950,000 · OtherEQUABLE INSTITUTEIndividual grant recipient: $2,600,000 · OtherIndividual grant rec…CONNECTICUT STATE COLLEGES AND UNIVERSITIES: $2,480,000 · OtherCONNECTICUT STATE CO…NEW YORK ACADEMY OF SCIENCES: $1,766,500 · OtherSCHOOL STATE FINANCE PROJECT: $1,650,000 · OtherFUNDACAO CLINICA CARMEN LUCIA: $1,646,366 · Other+98 more: $31,742,274 · Other+98 moreScenic Hudson Inc: $4,700,000 · EnvironmentScenic Hudso…Connecticut Land Conservation Council Inc: $3,635,000 · EnvironmentConnecticut …Lake George Land Conservancy Inc: $3,000,000 · EnvironmentLake George …Westchester Land Trust Inc: $2,600,000 · EnvironmentWestchester …LAND TRUST ALLIANCE INC: $2,050,000 · EnvironmentLAND TRUST A…COLUMBIA LAND CONSERVANCY INC: $1,485,000 · EnvironmentCOLUMBIA LAN…Hudson Highlands Land Trust Inc: $1,325,000 · EnvironmentWINNAKEE LAND TRUST INC: $1,250,000 · EnvironmentDUTCHESS LAND CONSERVANCY INC: $1,225,000 · EnvironmentTHE TRUST FOR PUBLIC LAND: $1,125,000 · Environment+12 more: $5,425,508 · Environment+12 moreTHIRD SECTOR NEW ENGLAND INC: $7,200,000 · Community ImprovementTHE COMMUNITY ACTION AGENCY OF WESTERN CONNECTICUT INC: $920,000 · Community ImprovementJERICHO PARTNERSHIP INC: $410,000 · Community ImprovementFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $350,000 · Community ImprovementMEDECINS SANS FRONTIERES USA INC: $7,950,000 · InternationalPHI DELTA KAPPA INTERNATIONAL INC: $2,695,000 · PhilanthropyUNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC: $825,000 · PhilanthropyHARLEM RBI INC: $583,000 · PhilanthropyLIVERMORE LAB FOUNDATION: $330,965 · Philanthropy+2 more: $160,000 · PhilanthropyLEE FOUNDATION FOR CIVIC LEADERSHIP INC: $2,575,000 · Human ServicesEXPANDED SCHOOLS INC: $900,000 · Human ServicesREGIONAL YOUNG MEN'S CHRISTIAN ASSOCIATION OF WESTERN CONNECTICUT INC: $390,000 · Human Services+2 more: $215,000 · Human Services
Education$153,346,500Other$44,835,140Environment$27,820,508Community Improvement$8,880,000International$7,950,000Philanthropy$4,593,965Human Services$4,080,000

Showing the 200 largest grantees by grant value.

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetACHIEVEMENT FIRST INC: $20,975,000 over 5y, 12% of budgetTHE MIND TRUST INC: $11,425,000 over 2y, 18% of budgetKIPP FOUNDATION: $10,800,000 over 4y, 6.9% of budget50CAN INC: $9,970,000 over 5y, 6.0% of budgetELEVATE CHARTER SCHOOLS INC: $8,885,000 over 4y, 100% of budgetCAPITAL PREPARATORY SCHOOLS INC: $8,500,000 over 5y, 34% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $8,020,000 over 5y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC: $7,950,000 over 5y, 0.2% of budgetTHIRD SECTOR NEW ENGLAND INC: $7,200,000 over 4y, 2.9% of budgetTEACHorg Inc: $6,695,000 over 5y, 21% of budgetSUCCESS ACADEMY CHARTER SCHOOLS INC: $6,200,000 over 5y, 1.9% of budgetNORTHEAST CHARTER SCHOOLS NETWORK INC: $6,000,000 over 4y, 48% of budgetEXCELLENCE COMMUNITY SCHOOLS INC: $5,550,000 over 5y, 12% of budgetScenic Hudson Inc: $4,700,000 over 5y, 8.1% of budgetZETA CHARTER SCHOOLS INC: $4,250,000 over 1y, 7.5% of budgetTeach for America Inc: $3,675,000 over 5y, 0.4% of budgetConnecticut Land Conservation Council Inc: $3,635,000 over 5y, 41% of budgetNEW LEADERS INC: $3,600,000 over 1y, 16% of budgetRELAY GRADUATE SCHOOL OF EDUCATION: $3,450,000 over 5y, 4.1% of budgetLake George Land Conservancy Inc: $3,000,000 over 1y, 39% of budgetBRASS CITY CHARTER SCHOOL: $2,851,500 over 5y, 10% of budgetFAITHACTS FOR EDUCATION INC: $2,850,000 over 5y, 24% of budgetEDUCATORS FOR EXCELLENCE INC: $2,765,000 over 5y, 8.9% of budgetPHI DELTA KAPPA INTERNATIONAL INC: $2,695,000 over 4y, 15% of budgetJUMOKE ACADEMY INC: $2,633,000 over 4y, 6.9% of budgetWestchester Land Trust Inc: $2,600,000 over 5y, 10% of budgetLEE FOUNDATION FOR CIVIC LEADERSHIP INC: $2,575,000 over 2y, 1.7% of budgetODYSSEY COMMUNITY SCHOOL INC: $2,135,000 over 5y, 10.0% of budgetCAPITOL REGION EDUCATION COUNCILFOUNDATION INC: $2,105,000 over 5y, 48% of budgetLAND TRUST ALLIANCE INC: $2,050,000 over 5y, 2.2% of budgetSACRED HEART UNIVERSITY INCORPORATED: $1,800,000 over 5y, 0.1% of budgetNEW YORK ACADEMY OF SCIENCES: $1,766,500 over 5y, 2.1% of budgetTODAY'S STUDENTS TOMORROW'S TEACHERS: $1,661,000 over 5y, 18% of budgetHighville Charter School: $1,580,000 over 5y, 8.8% of budgetCOLUMBIA LAND CONSERVANCY INC: $1,485,000 over 5y, 15% of budgetEDUCATION REFORM NOW INC: $1,425,000 over 5y, 4.4% of budgetHudson Highlands Land Trust Inc: $1,325,000 over 5y, 18% of budgetNEW HAVEN ECOLOGY PROJECT INC: $1,306,500 over 4y, 5.2% of budgetCHAMPLAIN AREA TRAILS INC: $1,250,000 over 1y, 75% of budgetDUTCHESS LAND CONSERVANCY INC: $1,225,000 over 5y, 7.3% of budgetUNCOMMON SCHOOLS INC: $1,150,000 over 4y, 0.4% of budgetTHE TRUST FOR PUBLIC LAND: $1,125,000 over 5y, 0.1% of budgetMaineHealth: $1,055,000 over 2y, 0.0% of budgetMassachusetts Institute of Technology: $1,000,000 over 2y, 0.0% of budgetTHE COMMUNITY ACTION AGENCY OF WESTERN CONNECTICUT INC: $920,000 over 5y, 2.2% of budgetEXPANDED SCHOOLS INC: $900,000 over 5y, 1.7% of budgetUNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC: $825,000 over 5y, 2.8% of budgetAGRICULTURAL STEWARDSHIP ASSN INC: $775,000 over 5y, 7.0% of budget
Grantee by grantee: a decade per organization, before and after funding

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

  • Who funds ACHIEVEMENT FIRST INC ↗
  • Who funds THE MIND TRUST INC ↗
  • Who funds KIPP FOUNDATION ↗
  • Who funds 50CAN INC ↗
  • Who funds ELEVATE CHARTER SCHOOLS INC ↗
  • Who funds CAPITAL PREPARATORY SCHOOLS INC ↗
  • Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
  • Who funds MEDECINS SANS FRONTIERES USA INC ↗
  • Who funds THIRD SECTOR NEW ENGLAND INC ↗
  • Who funds TEACHorg Inc ↗
  • Who funds SUCCESS ACADEMY CHARTER SCHOOLS INC ↗
  • Who funds NORTHEAST CHARTER SCHOOLS NETWORK INC ↗
  • Who funds EXCELLENCE COMMUNITY SCHOOLS INC ↗
  • Who funds Scenic Hudson Inc ↗
  • Who funds ZETA CHARTER SCHOOLS INC ↗
  • Who funds Teach for America Inc ↗
  • Who funds Connecticut Land Conservation Council Inc ↗
  • Who funds NEW LEADERS INC ↗
  • Who funds RELAY GRADUATE SCHOOL OF EDUCATION ↗
  • Who funds Lake George Land Conservancy Inc ↗
  • Who funds BRASS CITY CHARTER SCHOOL ↗
  • Who funds FAITHACTS FOR EDUCATION INC ↗
  • Who funds EDUCATORS FOR EXCELLENCE INC ↗
  • Who funds PHI DELTA KAPPA INTERNATIONAL INC ↗
  • Who funds JUMOKE ACADEMY INC ↗
  • Who funds Westchester Land Trust Inc ↗
  • Who funds LEE FOUNDATION FOR CIVIC LEADERSHIP INC ↗
  • Who funds ODYSSEY COMMUNITY SCHOOL INC ↗
  • Who funds CAPITOL REGION EDUCATION COUNCILFOUNDATION INC ↗
  • Who funds LAND TRUST ALLIANCE INC ↗
  • Who funds SACRED HEART UNIVERSITY INCORPORATED ↗
  • Who funds NEW YORK ACADEMY OF SCIENCES ↗
  • Who funds TODAY'S STUDENTS TOMORROW'S TEACHERS ↗
  • Who funds Highville Charter School ↗
  • Who funds COLUMBIA LAND CONSERVANCY INC ↗

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.

Fairfield County's Co…Land Trust Alliance I…Walton Family Foundat…Charter Fund Inc D/B/…Savings Bank of Danbu…The Connecticut Commu…The Nature ConservancyHartford Foundation f…Open Space Institute …Ibm International Fou…50can IncNew Schools Fund
Fairfield County's Community Foundation IncCT42.1× affinity23 shared granteesties to 10 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fairfield County's Community Foundation Inc · Land Trust Alliance Inc · Walton Family Foundation Inc · Charter Fund Inc D/B/A Charter School Growth Fund · Savings Bank of Danbury Foundation Inc · The Connecticut Community Foundation · The Nature Conservancy · Hartford Foundation for Public Giving · Open Space Institute Land Trust Inc · Ibm International Foundation · 50can Inc · New Schools Fund

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.

How much its grantees rely on government

Each dot is one organization The Peter and Carmen Lucia Buck Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Peter and Carmen Lucia Buck Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 250%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 9%
  • The Community Action Agency of Western Connecticut Inc: 81% of income from government
  • Vermont Sustainable Jobs Fund Inc: 51% of income from government
  • St Vincent Depaul Mission of Waterbury: 49% of income from government
  • Massachusetts Institute of Technology: 35% of income from government
  • Aspetuck Land Trust: 28% of income from government
  • Avalonia Land Conservancy Inc: 21% of income from government
  • The Green Mountain Club Inc Debonis: 17% of income from government
  • Connecticut Community Care Inc: 15% of income from government
  • Johns Hopkins University: 12% of income from government
  • Connecticut Land Conservation Council Inc: 12% of income from government
  • United Way of Coastal and Western Connecticut Inc: 11% of income from government
  • Planned Parenthood of Southern New England Inc: 10% of income from government
  • Stowe Land Trust: 10% of income from government
  • New Haven Ecology Project Inc: 9% of income from government
  • Northwest Connecticut Land Conservancy Inc: 9% of income from government
  • Jericho Partnership Inc: 7% of income from government
  • Third Sector New England Inc: 3% of income from government
  • Northeast Wilderness Trust Corporation: 2% of income from government
  • Girl Scouts of Connecticut Inc: 2% of income from government
  • Lake Champlain Land Trust Inc: 1% of income from government
  • Sacred Heart University Incorporated: 1% of income from government
  • Incarnation Center Inc: 1% of income from government
  • Wyndham Land Trust Inc: 1% of income from government
  • The Ccsu Foundation Inc: 0% of income from government
  • Ridge and Valley Conservancy Inc: 0% of income from government
  • Western Connecticut Home Care Inc: 0% of income from government
  • Partners in Health a Nonprofit Corporation: 0% of income from government
  • Achievement First Inc: 0% of income from government
  • Ilearn Schools Inc: 0% of income from government
no gov moneyreceives it· size = income
25get no government money at all
45report government grants on their 990 we could not trace to a source (not plotted)
2rely on government for over half their income
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Peter and Carmen Lucia Buck Foundation Inc?

Find your warmest path to The Peter and Carmen Lucia Buck Foundation Inc 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 from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 286 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

Play a game based on Peter and Carmen Lucia Buck’s filings →

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