Washington, D.C. · Nonprofit
COSMOS CLUB
COSMOS CLUB (Washington, D.C.) receives grants from 6 organizations whose IRS filings report $2,659,078 to it, the largest being COSMOS CLUB HISTORIC PRESERVATION FOUNDATION ($2,645,677). 1 of them have funded it in more than one year.
- Revenue FY2025
- $18M
- Funders on record
- 6
- Grants received
- $2.7M
- Net assets
- $23M
What Cosmos Club does
Mission
The organization's mission is to advance and enhance the interests and public expression of its members in science, literature, and the arts; their mutual improvement by social interaction; and the maintenance of a library and other permanent collections. A common theme among the members of the Cosmos Club is their relation with scholarship, creative genius, or intellectual distinction.
As stated on its FY2025 Form 990.
Programs
The club provides dining, hospitality services, and overnight lodging for its 2535 members and their guests as well as for members in good standing of certain clubs in other geographic locations, where reciprocal contractual arrangements have been made.
The club produces a robust catalog of educational, scientific, cultural, artistic, musical, literary and other programs for its members and their guests.
The club owns and maintains the historic townsend mansion in washington dc's dupont circle neighborhood, with its surrounding gardens. At certain pre-arranged times, tours of the public areas of the club are given to the public, by volunteer docents who are members of the club. The club maintains a sizable library and displays works of art from its permanent collection and in temporary exhibits on a rotating basis.
The 3 programs described on its FY2024 Form 990, listed largest first by expense.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $27M to $29M (+6%).
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.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 2 funders, grant income rose $2k → $298k.
From the IRS filings of COSMOS CLUB’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
COSMOS CLUB leans on a few funders — its largest provides 99% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
100% 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 COSMOS CLUB.
Largest funder’s share by year: 2017 100% · 2020 98% · 2021 100% · 2022 100% · 2023 100% — broadly stable.
“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
100% of COSMOS CLUB's grant income comes from Washington, D.C. funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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.
Government funding COSMOS CLUB receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $897 on record.
- TRAVEL - OUT OF STATE - LODGING $897
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like COSMOS CLUB
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the 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.
Governance
Footprint & structure
Part of a family of 1 related entity
- Cosmos Club Foundation · exempt
Screen this organization
A dated, signed PDF of the compliance screen for COSMOS CLUB: 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. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds COSMOS CLUB?
- COSMOS CLUB (Washington, D.C.) receives grants from 6 organizations whose IRS filings report $2,659,078 to it, the largest being COSMOS CLUB HISTORIC PRESERVATION FOUNDATION ($2,645,677). 1 of them have funded it in more than one year.
- How many funders does COSMOS CLUB have?
- IRS filings report 6 organizations giving $2,659,078 in grants to COSMOS CLUB, 1 of which have funded it in more than one year.
- Who is the largest funder of COSMOS CLUB?
- COSMOS CLUB HISTORIC PRESERVATION FOUNDATION is the largest funder on record, with $2,645,677 in grants. The full list of funders is on this page.
- How can an organization like COSMOS CLUB 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.
Play a game about who funds Cosmos Club →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 6 funders 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 October 14, 2026. What this page cannot tell you · view filing