Massachusetts · Nonprofit
NANTUCKET MARIA MITCHELL ASSOCIATION IN
NANTUCKET MARIA MITCHELL ASSOCIATION IN (Massachusetts) receives grants from 104 organizations whose IRS filings report $4,333,185 to it, the largest being Community Foundation for Nantucket Inc ($651,005). 57 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2024
- $4.0M
- Funders on record
- 104
- Grants received
- $4.3M
- Net assets
- $11M
What Nantucket Maria Mitchell Association In does
Mission
The mission of the association is promotion of the legacy of maria mitchell and exploration, education and enjoyment of nantucket's land, waters and skies beyond. In fulfilling the mission they recognize the historic persona of maria mitchell, the foremost american woman scientist and educator of the 19th century, and her potential impact on contemporary thought by passing on her legacy of intellectual curiosity, respect for and love of nature, learning by doing, and the ideal of individualism. The association's contributions to astronomy, science, and education are the basis for their continuing tradition of high quality research and teaching which inspires today's learners and tomorrow's scientists. The association also provides scientific resources and educational programs for the community, uses nantucket island as an exceptional natural laboratory in which to study science and the environment, and maintains research and/or representative collections of nantucket's biodiversity.
As stated on its FY2024 Form 990.
Program
The assocation conducts programs of research and education in astronomy and the natural sciences. For these purposes it maintains two observatories, a library, an aquarium & exhibit and the maria mitchell birthplace museum.
$1,811,847 spent$506,412 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $1,811,847.
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 $13M to $14M (+12%).
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: 2017 16% · 2018 12% · 2019 18% · 2020 36% · 2021 22% · 2022 6% · 2023 6% · 2024 0%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 of the last 8 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.
Chief executive
Joanna Roche
Executive director
As listed on its FY2024 Form 990.
The chief executive listed changed between the FY2020 and FY2021 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 16 funders to 43 funders, grant income rose $162k → $535k.
15 of 104 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 52% 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 NANTUCKET MARIA MITCHELL ASSOCIATION IN’s funders (the co-funder graph). Top 30 of 104 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
NANTUCKET MARIA MITCHELL ASSOCIATION IN has a broad base — no single funder exceeds 15% of grant income, and it takes 6 funders to reach half.
the vertical line marks half of all grant income — 6 funders to its left
61% 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 NANTUCKET MARIA MITCHELL ASSOCIATION IN.
Largest funder’s share by year: 2017 34% · 2018 59% · 2019 14% · 2020 17% · 2021 13% · 2022 11% · 2023 22% — 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
48% of NANTUCKET MARIA MITCHELL ASSOCIATION IN's funders are still giving 3 years after their first grant; 55% 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
52% of NANTUCKET MARIA MITCHELL ASSOCIATION IN'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 $2.1M that is directly attributable, 59% of it comes from funders outside Massachusetts, across 22 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $2.3M arriving through sponsors registered in 11 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.
Government funding NANTUCKET MARIA MITCHELL ASSOCIATION IN receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $1.6M on record — $1.4M federal, $187k state.
- National Science Foundation$1.4M
- (PP) STATE AID/POL SUB$187k
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 NANTUCKET MARIA MITCHELL ASSOCIATION IN
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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
52% of spending goes to programs.
Governance
Public support
87%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for NANTUCKET MARIA MITCHELL ASSOCIATION IN: 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 NANTUCKET MARIA MITCHELL ASSOCIATION IN?
- NANTUCKET MARIA MITCHELL ASSOCIATION IN (Massachusetts) receives grants from 104 organizations whose IRS filings report $4,333,185 to it, the largest being Community Foundation for Nantucket Inc ($651,005). 57 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does NANTUCKET MARIA MITCHELL ASSOCIATION IN have?
- IRS filings report 104 organizations giving $4,333,185 in grants to NANTUCKET MARIA MITCHELL ASSOCIATION IN, 57 of which have funded it in more than one year.
- Who is the largest funder of NANTUCKET MARIA MITCHELL ASSOCIATION IN?
- Community Foundation for Nantucket Inc is the largest funder on record, with $651,005 in grants. The full list of funders is on this page.
- How can an organization like NANTUCKET MARIA MITCHELL ASSOCIATION IN find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 Nantucket Maria Mitchell Association In →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 104 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 22, 2026. What this page cannot tell you · view filing