Washington, D.C. · Nonprofit
NATIONAL DOWN SYNDROME SOCIETY
NATIONAL DOWN SYNDROME SOCIETY (Washington, D.C.) receives grants from 139 organizations whose IRS filings report $6,046,214 to it, the largest being Orange County Community Foundation ($1,636,509). 53 of them have funded it in more than one year, and 69% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
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.
- Give Lively Foundation Incshared funders
- Global Down Syndrome Foundationportfolio match
- Marino Family Charitable Foundation Incportfolio match
The organization over time
Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 50 means half. The number beside each label in the key is where it ended.
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.
Government-grant reliance: 2021 6% · 2022 6%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 6 reported years ran a deficit.
reserve
Who funds it, year by year
2017 → 2023: the base broadened from 29 funders to 52 funders, grant income rose $320k → $681k.
20 of 139 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 69% 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 NATIONAL DOWN SYNDROME SOCIETY’s funders (the co-funder graph). Top 30 of 139 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
NATIONAL DOWN SYNDROME SOCIETY has a broad base — no single funder exceeds 27% 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
80% 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 NATIONAL DOWN SYNDROME SOCIETY.
Largest funder’s share by year: 2017 27% · 2018 50% · 2019 20% · 2020 20% · 2021 18% · 2022 19% · 2023 13% — 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.
How long its funders stay
26% of NATIONAL DOWN SYNDROME SOCIETY's funders are still giving 3 years after their first grant; 38% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
69% of NATIONAL DOWN SYNDROME SOCIETY's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $1.9M that is directly attributable, 96% of it comes from funders outside Washington, D.C., across 28 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $4.2M arriving through sponsors registered in 13 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 139 funders put you under-funded among the 400 organizations that share them.
- Give Lively Foundation Incshared fundersNY · backs 257 organizations that share your funders
- Global Down Syndrome Foundationportfolio matchits grantees resemble your mission
- Marino Family Charitable Foundation Incportfolio matchits grantees resemble your mission
- Tony R Wells Foundationportfolio matchits grantees resemble your mission
- Pace Cares Corpportfolio matchits grantees resemble your mission
- Harold and Janice Cohen Family Charitable Foundationportfolio matchits grantees resemble your mission
- Block & Popick Foundationportfolio matchits grantees resemble your mission
- Numotion Foundationportfolio matchits grantees resemble your mission
- The Seymour Tutelman Family Foundation Iportfolio matchits grantees resemble your mission
- Leeolou Family Foundationportfolio matchits grantees resemble your mission
- Tisbest Philanthropyshared fundersWA · backs 135 organizations that share your funders
- Givinga Foundation Incshared fundersMA · backs 144 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 NATIONAL DOWN SYNDROME SOCIETY
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
80% of spending goes to programs.
Governance
Public support
71%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 38 states
Screen this organization
A dated, signed PDF of the compliance screen for NATIONAL DOWN SYNDROME SOCIETY: 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 NATIONAL DOWN SYNDROME SOCIETY?
- NATIONAL DOWN SYNDROME SOCIETY (Washington, D.C.) receives grants from 139 organizations whose IRS filings report $6,046,214 to it, the largest being Orange County Community Foundation ($1,636,509). 53 of them have funded it in more than one year, and 69% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does NATIONAL DOWN SYNDROME SOCIETY have?
- IRS filings report 139 organizations giving $6,046,214 in grants to NATIONAL DOWN SYNDROME SOCIETY, 53 of which have funded it in more than one year.
- Who is the largest funder of NATIONAL DOWN SYNDROME SOCIETY?
- Orange County Community Foundation is the largest funder on record, with $1,636,509 in grants. The full list of funders is on this page.
- How can an organization like NATIONAL DOWN SYNDROME SOCIETY 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 FY2025 (financials across 2020–2025), and the filings of 139funders 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