Florida · Nonprofit
MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER
MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER (Florida) receives grants from 10 organizations whose IRS filings report $385,895 to it, the largest being THE MIAMI FOUNDATION INC ($227,500). 4 of them have funded it in more than one year, and 76% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $457k
- Funders on record
- 10
- Grants received
- $386k
- Net assets
- $576k
What Marjory Stoneman Douglas Biscayne Nature Center does
Mission
The Marjory Stoneman Douglas Biscayne Nature Center, Inc. (MSDBNC) is a not-for-profit organization dedicated to environmental education and encouraging greater citizen participation in protecting our natural environment by connecting our community to the world through nature and the arts.
As stated on its FY2025 Form 990.
Programs
We offered environmental education/art and nature programs either free or for a minimal fee $8 - $15. to over 15,000 students. We also provided adult programming through Art exhibits and Historic Storytelling Biscayne Bay Sunset Boat tours. There were another 5000 residents and visitors served. We offered 60 students from ages 8 - 12 a free one-month scholarship to Summer by the Sea camp. This included bus transportation and lunch. We gave 55 local artists the opportunity to exhibit their individual original art works in our Gallery. We organized 8 Saturdays of Weeding Warriors, cleaning up and weeding Crandon Park. We participated in 10 outreach community events - making information known about our local environmental conditions and solutions. Hosted 10 Teacher Workshops to bring local teachers up to date and renew their teacher credits for their certification.
$273,123 spent$126,088 earned by the program82% of program spendingProvided summer camp to over 75 youth campers.
$46,735 spent$19,369 earned by the program14% of program spendingProvide support to aid in overall maintenance and improvement of Crandon Park
$12,935 spent4% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $332,793.
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. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2017 to 2018, from $306k to $441k (+44%).
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 2% · 2018 27% · 2019 38% · 2020 42% · 2021 49% · 2022 61% · 2023 40% · 2024 54% · 2025 31%. Grants only. Government contracts and fees sit inside program revenue.
64% of MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER’s revenue is contributions — about as donation-reliant as the typical peer (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 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.
Chief executive
Theodora Long
Executive Director
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 3 funders, grant income rose $25k → $48k.
5 of 10 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 76% 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 MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER’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
MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER leans on a few funders — its largest provides 59% of grant income and the top three 77%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
81% 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 MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER.
Largest funder’s share by year: 2017 100% · 2018 99% · 2019 67% · 2020 80% · 2021 40% · 2022 71% · 2023 83% — 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
40% of MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER's funders are still giving 3 years after their first grant; 40% 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
76% of MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER'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 $93k that is directly attributable, 100% of it comes from Florida funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $293k arriving through sponsors registered in 4 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.
Against its field
MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER is better cushioned than half of the 2,606 environment nonprofits its size.
this organization peer median middle 50% of peers· 2,606 environment nonprofits $100k–$1M, FY2025
Government funding MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $10k on record.
- National Endowment for the Arts$10k
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 MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER
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 Florida
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
73% of spending goes to programs.
Governance
Public support
91%
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 MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER: 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 MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER?
- MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER (Florida) receives grants from 10 organizations whose IRS filings report $385,895 to it, the largest being THE MIAMI FOUNDATION INC ($227,500). 4 of them have funded it in more than one year, and 76% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER have?
- IRS filings report 10 organizations giving $385,895 in grants to MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER, 4 of which have funded it in more than one year.
- Who is the largest funder of MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER?
- THE MIAMI FOUNDATION INC is the largest funder on record, with $227,500 in grants. The full list of funders is on this page.
- How can an organization like MARJORY STONEMAN DOUGLAS BISCAYNE NATURE CENTER find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. 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 Marjory Stoneman Douglas Biscayne Nature Center →
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 10 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