Washington, D.C. · Nonprofit
AMERICAN CORNERSTONE INSTITUTE INC
AMERICAN CORNERSTONE INSTITUTE INC (Washington, D.C.) receives grants from 93 organizations whose IRS filings report $4,824,378 to it, the largest being ED UIHLEIN FAMILY FOUNDATION ($1,000,000). 35 of them have funded it in more than one year.
Against its field
AMERICAN CORNERSTONE INSTITUTE INC has grown faster than three-quarters of the 4,063 education nonprofits its size.
this organization peer median middle 50% of peers· 4,063 education nonprofits $10M–$100M, FY2024
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- The Dunn Foundationshared funders
- The Howdy Doody Good Times Foundation Incportfolio match
- Woodford Foundationportfolio match
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
100% of AMERICAN CORNERSTONE INSTITUTE INC’s revenue is contributions — more reliant on donations than three-quarters of its peers (23% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 4 reported years ran a deficit.
reserve
Who funds it, year by year
2021 → 2023: the base broadened from 11 funders to 42 funders, grant income rose $437k → $553k.
16 of 93 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 39% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of AMERICAN CORNERSTONE INSTITUTE INC’s funders (the co-funder graph). Top 30 of 93 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
AMERICAN CORNERSTONE INSTITUTE INC has a broad base — no single funder exceeds 21% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
44% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund AMERICAN CORNERSTONE INSTITUTE INC.
Largest funder’s share by year: 2021 37% · 2022 52% · 2023 18% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
AMERICAN CORNERSTONE INSTITUTE INC draws 95% of its grant income from funders outside Washington, D.C., across 32 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.9M arriving through sponsors registered in 14 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 93 funders put you under-funded among the 400 organizations that share them.
- The Dunn Foundationshared fundersDE · backs 48 organizations that share your funders
- The Howdy Doody Good Times Foundation Incportfolio matchits grantees resemble your mission
- Woodford Foundationportfolio matchits grantees resemble your mission
- Thomas D Klingenstein Fundportfolio matchits grantees resemble your mission
- Atlas Economic Research Foundationportfolio matchits grantees resemble your mission
- Turning Point USA Incportfolio matchits grantees resemble your mission
- State Policy Networkportfolio matchits grantees resemble your mission
- Sarah Scaife Foundation Incorporatedshared fundersPA · backs 52 organizations that share your funders
- The Lynde and Harry Bradley Foundation Incshared fundersWI · backs 75 organizations that share your funders
- Bradley Impact Fund Incshared fundersWI · backs 105 organizations that share your funders
- Diana Davis Spencer Foundation Incshared fundersMD · backs 54 organizations that share your funders
- Adolph Coors Foundationshared fundersCO · backs 55 organizations that share your funders
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Organizations like AMERICAN CORNERSTONE INSTITUTE INC
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Washington, D.C.
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
70% of spending goes to programs.
Governance
Public support
93%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for AMERICAN CORNERSTONE INSTITUTE INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds AMERICAN CORNERSTONE INSTITUTE INC?
- AMERICAN CORNERSTONE INSTITUTE INC (Washington, D.C.) receives grants from 93 organizations whose IRS filings report $4,824,378 to it, the largest being ED UIHLEIN FAMILY FOUNDATION ($1,000,000). 35 of them have funded it in more than one year.
- How many funders does AMERICAN CORNERSTONE INSTITUTE INC have?
- IRS filings report 93 organizations giving $4,824,378 in grants to AMERICAN CORNERSTONE INSTITUTE INC, 35 of which have funded it in more than one year.
- Who is the largest funder of AMERICAN CORNERSTONE INSTITUTE INC?
- ED UIHLEIN FAMILY FOUNDATION is the largest funder on record, with $1,000,000 in grants. The full list of funders is on this page.
- How can an organization like AMERICAN CORNERSTONE INSTITUTE INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Washington, D.C.. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2021–2024), and the filings of 93funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported August 27, 2026. What this page cannot tell you · view filing