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· Private foundation

Excelsior Foundation 009126-000

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.

$26k
Granted FY2025still arriving
7
Grants FY2025still arriving
3
States reached
$4k
Largest
01What it funds
01100% classified

What it funded, over time

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

Crime & Legal$59kPublic Benefit$40kEducation$34kSocial Science$26k
02FY2025 · 7 grants

Where the money goes

Grants by size, and the largest recipients.

$4,000
Median grant
3
States reached
$172k
Total assets
Largest grants
RecipientAmount
NATIONAL RIGHT TO WORK LEGAL DEF & EDU F$4,000
WASHINGTON LEGAL FOUNDATION$4,000
CITIZENS AGAINST GOVERNMENT WASTE$4,000
ATLAS ECONOMIC RESEARCH FOUNDATION$4,000
AMERICAN LEGISLATIVE EXCHANGE COUNCIL$4,000
PIONEER INSTITUTE INC$3,000
INSTITUTE FOR JUSTICE$3,000
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:

Dollar for dollar, its grants (FY18–25) land where the poverty rate runs at 12%, against an area that typically sits at 12%. 70% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%ROXBURY LATIN SCHOOL INC: $4k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 14%NATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $4k → 6%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 7%ROXBURY LATIN SCHOOL INC: $3k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 14%NATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $4k → 6%INSTITUTE FOR JUSTICE: $3k → 7%ROXBURY LATIN SCHOOL INC: $3k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 14%NATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $4k → 6%INSTITUTE FOR JUSTICE: $3k → 7%ROXBURY LATIN SCHOOL INC: $3k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 14%NATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $4k → 6%AMERICAN LEGISLATIVE EXCHANGE COUNCIL: $4k → 7%PIONEER INSTITUTE INC: $3k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $4k → 14%NATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $4k → 6%AMERICAN LEGISLATIVE EXCHANGE COUNCIL: $4k → 7%PIONEER INSTITUTE INC: $3k → 16%ATLAS ECONOMIC RESEARCH FOUNDATION: $3k → 14%AMERICAN LEGISLATIVE EXCHANGE COUNCIL: $4k → 7%PIONEER INSTITUTE INC: $3k → 16%WASHINGTON LEGAL FOUNDATION: $4k → 14%AMERICAN LEGISLATIVE EXCHANGE COUNCIL: $4k → 7%PIONEER INSTITUTE INC: $3k → 16%WASHINGTON LEGAL FOUNDATION: $4k → 14%PIONEER INSTITUTE INC: $3k → 16%CITIZENS AGAINST GOVERNMENT WASTE: $4k → 14%PIONEER INSTITUTE INC: $3k → 16%WASHINGTON LEGAL FOUNDATION: $4k → 14%PIONEER INSTITUTE INC: $3k → 16%CITIZENS AGAINST GOVERNMENT WASTE: $4k → 14%WASHINGTON LEGAL FOUNDATION: $4k → 14%WASHINGTON LEGAL FOUNDATION: $4k → 14%WASHINGTON LEGAL FOUNDATION: $4k → 14%CITIZENS AGAINST GOVERNMENT WASTE: $3k → 14%CITIZENS AGAINST GOVERNMENT WASTE: $3k → 14%CITIZENS AGAINST GOVERNMENT WASTE: $3k → 14%WASHINGTON LEGAL FOUNDATION: $3k → 14%CITIZENS AGAINST GOVERNMENT WASTE: $3k → 14%CITIZENS AGAINST GOVERNMENT WASTE: $4k → 14%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.
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.

100%of every dollar goes to organizations it has funded before.
$159k · 10 repeat orgs$0 to everyone else

10 repeat relationships: 7 still active in FY2025, 3 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

10
0

Total granted

$159k
$0

Still filing today

80%
0%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’18’20’21’22’23’24’25
Crime & LegalEducationSocial SciencePublic BenefitCivil 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.

Backed again, and grew

  • WL
    WASHINGTON LEGAL FOUNDATION
    7× · 2018–2025 · $27k · revenue +29%
  • AE
    Atlas Economic Research Foundation
    7× · 2018–2025 · $26k · revenue +86%
  • PI
    PIONEER INSTITUTE INC
    7× · 2018–2025 · $21k · revenue +117%

Funded once

    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
    Liberty Justice Center

    To advance economic and social liberties and a free enterprise society through strategic litigation, training, communication, activism and research. in addition, the center will train law students, lawyers and policy activists in the…

    Crime & Legal
    2
    American Law Institute

    The institute's mission, as set out in its certificate of incorporation, is to promote the clarification and simplification of the law and its better adaptation to social needs, to secure the better administration of justice, and to…

    Crime & Legal
    3
    Litigators for Liberty Network

    Support public interest litigators by leveraging resources and creating opportunities for collaboration to advance freedom under the rule of law.

    Crime & Legal
    4
    American Civil Liberties Union Fund of the District of Columbia

    Preservation of civil liberties through litigation and public education.

    —
    5
    American Constitution Society for Law & Policy

    The american constitution society for law and policy (acs) is a 501(c)(3) non-profit, non-partisan legal organization. through a diverse nationwide network of progressive lawyers, law students, judges, scholars, advocates, and many others,…

    Education
    6
    American Enterprise Institute for Public Policy Research

    The american enterprise institute is a community of scholars and supporters committed to expanding liberty, increasing individual opportunity, and strengthening free enterprise. aei pursues these ideals through independent thinking and the…

    Social Science
    7
    Association of Legal Administrators

    Ala is the catalyst for growth by providing: diverse educational experiences, engaged peer communities, strategic solutions, dynamic resources, and trusted networks.

    —
    8
    New England Legal Foundation

    New england legal foundation (nelf) is the leading non-profit public interest law firm in the region addressing policy and constitutional concerns related to free enterprise. its mission is promoting public discourse on the proper role of…

    Civil Rights
    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
    International Life Sciences Institute

    Ilsi is a global, nonprofit federation dedicated to generating and advancing emerging science and groundbreaking research to ensure foods are safe, nutritious and sustainable, and that they improve planetary and human health and well-being…

    Science & Tech
    11
    American Civil Liberties Union Foundation of Iowa

    The foundation works to defend and promote the constitution of the united states, focusing especially on the first, fourth, fifth, sixth, eighth, and 14th amendments. the foundation also works to defend and promote the constitution of the…

    Civil Rights
    12
    The International Institute for Strategic Studies - Us

    To provide accurate, objective information and analysis on international strategic issues for legislators, diplomats, foreign affairs analysts, international business leaders, economists, the military, defense commentators, journalists,…

    International
    How this is measured
    The grantee most central to the portfolio’s shape is Washington Legal Foundation; the most unlike its peers is Atlas Economic Research Foundation. 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

    8 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. 8 of the 10 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.

    0
    Load-bearing (≥25% of a budget)
    1
    Early backer (in before they grew)
    8/8
    Grantees still filing
    6/8
    Grew since first funded

    Where the money sits, by cause and then by grantee

    CITIZENS AGAINST GOVERNMENT WASTE: $24,000 · OtherCITIZENS AGAINST GOVERNMENT WASTENATIONAL RIGHT TO WORK LEGAL DEF & EDU F: $19,500 · OtherNATIONAL RIGHT TO WORK LEGAL DEF & …ROXBURY LATIN SCHOOL INC: $7,000 · OtherROXBURY LATIN SCHOOL INCWASHINGTON LEGAL FOUNDATION: $27,000 · Crime & LegalWASHINGTON LEGAL FOUNDA…NATIONAL RIGHT TO WORK LEGAL DEFENSE AND EDUCATION FOUNDATION INC: $6,500 · Crime & LegalNATIONAL RIGHT TO WORK …PIONEER INSTITUTE INC: $21,000 · EducationPIONEER INSTITUTE I…THE ROXBURY LATIN SCHOOL: $6,000 · EducationTHE ROXBURY LATIN S…Atlas Economic Research Foundation: $26,000 · Social ScienceAtlas Economic Res…AMERICAN LEGISLATIVE EXCHANGE COUNCIL: $16,000 · Public BenefitAMERICAN LE…INSTITUTE FOR JUSTICE: $6,000 · Civil Rights
    Other$50,500Crime & Legal$33,500Education$27,000Social Science$26,000Public Benefit$16,000Civil Rights$6,000

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

    25%50%75%100%$10Mgrantee revenue →↑ funder's share of their budgetWASHINGTON LEGAL FOUNDATION: $27,000 over 7y, 0.1% of budgetAtlas Economic Research Foundation: $26,000 over 7y, 0.0% of budgetCITIZENS AGAINST GOVERNMENT WASTE: $24,000 over 7y, 0.3% of budgetPIONEER INSTITUTE INC: $21,000 over 7y, 0.1% of budgetAMERICAN LEGISLATIVE EXCHANGE COUNCIL: $16,000 over 4y, 0.0% of budgetNATIONAL RIGHT TO WORK LEGAL DEFENSE AND EDUCATION FOUNDATION INC: $6,500 over 2y, 0.0% of budgetTHE ROXBURY LATIN SCHOOL: $6,000 over 2y, 0.0% of budgetINSTITUTE FOR JUSTICE: $6,000 over 2y, 0.0% 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 WASHINGTON LEGAL FOUNDATION ↗
    • Who funds Atlas Economic Research Foundation ↗
    • Who funds CITIZENS AGAINST GOVERNMENT WASTE ↗
    • Who funds PIONEER INSTITUTE INC ↗
    • Who funds AMERICAN LEGISLATIVE EXCHANGE COUNCIL ↗
    • Who funds NATIONAL RIGHT TO WORK LEGAL DEFENSE AND EDUCATION FOUNDATION INC ↗
    • Who funds THE ROXBURY LATIN SCHOOL ↗
    • Who funds INSTITUTE FOR JUSTICE ↗

    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.

    Donors Trust IncVA13.5× affinity4 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

    Open a dossier: Donors Trust Inc · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

    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 Excelsior Foundation 009126-000 funds: left to right is the share of its income from government, bottom to top the share from Excelsior Foundation 009126-000. Bigger dots raise more.

    2024
    ’20’21’22’23’24’25
    no gov · 20%0%1%3%5%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
      no gov moneyreceives it· size = income
      2get no government money at all
      0rely on government for over half their income
      ⤢ axis zoomed · 0–5%
      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 Excelsior Foundation 009126-000?

      Find your warmest path to Excelsior Foundation 009126-000 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 10 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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