· Private foundation
Cornerstone Foundation Inc
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2024
- $50k–250k10 grants · $1.5M
- $250k+2 grants · $690k
| Recipient | Amount |
|---|---|
| ENVIRONMENTAL DEFENSE FUND | $350,000 |
| ISLAND INSTITUTE | $340,000 |
| TEACH FOR AMERICA | $240,000 |
| HOUSE OF RUTH | $240,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA INC | $200,000 |
| ROCK THE VOTE | $160,000 |
| CHILDREN'S LITERACY INITIATIVE | $150,000 |
| THE POSSE FOUNDATION | $150,000 |
| WILLIAM J BRENNAN JR CENTER FOR JUSTICE INC | $125,000 |
| THURGOOD MARSHALL COLLEGE FUND | $80,000 |
| THE TREVOR PROJECT | $75,000 |
| THE BASIC FUND | $60,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY20–20, $188k) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +28% since the first grant, against -27% for those funded once.
13 repeat relationships: 8 still active in FY2024, 5 since wound down; 4 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 68% of grant dollars renewed an existing relationship; $690k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
ENVIRONMENTAL DEFENSE FUND INCORPORATED5× · 2020–2024 · $1.6M · revenue +121%- IIIsland Institute4× · 2020–2023 · $1.1M · revenue +109%
- HOHOUSE OF RUTH5× · 2020–2024 · $1.0M · revenue +73%
Funded once
- FLFOR LOVE OF CHILDRENone grant, 2020 · $188k · revenue -27%
- TPTHE POSSE FOUNDATION DCone grant, 2023 · $140k
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.
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.
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…
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.
The mission of the silicon schools fund is to improve education through supporting the launch of excellent new schools, improving academic instruction in existing schools, and by funding some of the boldest innovations in education…
See Schedule ODeans for Impact supports educator-preparation programs to bring the science of learning into teaching practice; partners with policymakers to ensure pathways into teaching are accessible, practice-based, and…
The philadelphia school educates children for a future that is impossible to know but not impossible to shape. learn here. go anywhere.
Help improve policy and decision making through research and analysis.
Making our government work better is a daunting task, and we are a small organization seeking to transform a government that employs millions of civilians and manages trillions of dollars in taxpayer revenue needed to protect public…
We believe every texas student deserves the opportunity to earn a postsecondary credential or degree that helps them achieve the future they envision for themselves and their families. we invest in the programs, practices, and policies…
At the internet society foundation, we focus on funding initiatives that strengthen the internet in function and reach so that it can effectively serve all people. our work advances the vision of the internet society (isoc): the internet…
People inc. provides health and human services that enrich lives and communities through innovation and supportive services. with a goal to help people achieve greater independence and quality of life, people inc. provides day,…
Institute for the future is the world's leading futures organization. our mission is to prepare the world to create better, more equitable futures by disrupting short-term thinking with visions of transformative possibilities.
College summit, inc. d/b/a peerforward (peerforward)'s mission is to unleash the power of positive peer influence to transform the lives of youth living in low-income communities by connecting them to college and careers. in low-income…
How this is measured
13 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. 13 of the 19 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.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
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 ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds Island Institute ↗
- Who funds HOUSE OF RUTH ↗
- Who funds CHILDREN'S LITERACY INITIATIVE ↗
- Who funds Teach for America Inc ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds ROCK THE VOTE ↗
- Who funds Thurgood Marshall College Fund ↗
- Who funds THE BASIC FUND ↗
- Who funds FOR LOVE OF CHILDREN ↗
- Who funds THE POSSE FOUNDATION INC ↗
- Who funds WILLIAM J BRENNAN CENTER FOR JUSTICE INC ↗
- Who funds TREVOR PROJECT 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.
Open a dossier: American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Cornerstone Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Cornerstone Foundation Inc. Bigger dots raise more.
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Cornerstone Foundation Inc?
Find your warmest path to Cornerstone 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.
Play a game based on Cornerstone’s filings →