Washington, D.C. · Nonprofit
RUSI (US) FOUNDATION
RUSI (US) FOUNDATION (Washington, D.C.) receives grants from 3 organizations whose IRS filings report $1,162,345 to it, the largest being SMITH RICHARDSON FOUNDATION INC ($491,818). 3 of them have funded it in more than one year.
Against its field
RUSI (US) FOUNDATION holds deeper cash reserves than three-quarters of the 7,105 philanthropy nonprofits its size.
this organization peer median middle 50% of peers· 7,105 philanthropy nonprofits $100k–$1M, 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.
- Russell Sage Foundationshared funders
- Prime Coalition Incportfolio match
- Sarah Scaife Foundation Incorporatedshared funders
The organization over time
Each line starts at 100 in 2018, so what you read is the shape rather than the size: 150 means half as much again as 2018, 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.
Who funds it, year by year
2019 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $66k → $629k.
1 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 27% 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 RUSI (US) FOUNDATION’s funders (the co-funder graph). 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
RUSI (US) FOUNDATION leans on a few funders — its largest provides 42% of grant income and the top three 100%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
58% 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 RUSI (US) FOUNDATION.
Largest funder’s share by year: 2019 100% · 2020 100% · 2021 100% · 2023 59% — 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
RUSI (US) FOUNDATION draws 58% of its grant income from funders outside Washington, D.C., across 2 states in all.
Funder states come from each funder’s own filing. $315k arriving through sponsors registered in 1 stateis 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.
- Russell Sage Foundationshared fundersNY · backs 43 organizations that share your funders
- Prime Coalition Incportfolio matchits grantees resemble your mission
- Sarah Scaife Foundation Incorporatedshared fundersPA · backs 33 organizations that share your funders
- The Maria Hulai Lion Foundation Incportfolio matchits grantees resemble your mission
- Elton Family Foundationportfolio matchits grantees resemble your mission
- Sabeen & Mairaj Foundationportfolio matchits grantees resemble your mission
- Craig and Connie Thatcher Foundationportfolio matchits grantees resemble your mission
- The Selfreliance Foundationportfolio matchits grantees resemble your mission
- Propp Foundation Incportfolio matchits grantees resemble your mission
- The Elsa Miller Foundation Incportfolio matchits grantees resemble your mission
- The Heritage Foundation of First Security Federal Savings Bank Incportfolio matchits grantees resemble your mission
- UMANA Foundationportfolio matchits grantees resemble your mission
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 RUSI (US) FOUNDATION
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.
Screen this organization
A dated, signed PDF of the compliance screen for RUSI (US) FOUNDATION: 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 RUSI (US) FOUNDATION?
- RUSI (US) FOUNDATION (Washington, D.C.) receives grants from 3 organizations whose IRS filings report $1,162,345 to it, the largest being SMITH RICHARDSON FOUNDATION INC ($491,818). 3 of them have funded it in more than one year.
- How many funders does RUSI (US) FOUNDATION have?
- IRS filings report 3 organizations giving $1,162,345 in grants to RUSI (US) FOUNDATION, 3 of which have funded it in more than one year.
- Who is the largest funder of RUSI (US) FOUNDATION?
- SMITH RICHARDSON FOUNDATION INC is the largest funder on record, with $491,818 in grants. The full list of funders is on this page.
- How can an organization like RUSI (US) FOUNDATION 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 2018–2024), and the filings of 3funders 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