Florida · Nonprofit
NAPLES ZOO INC
NAPLES ZOO INC (Florida) receives grants from 126 organizations whose IRS filings report $10,363,699 to it, the largest being BILL & JULIA VAN DOMELEN FOUNDATION ($1,000,000). 72 of them have funded it in more than one year.
- Revenue FY2025
- $13M
- Funders on record
- 126
- Grants received
- $10M
- Net assets
- $41M
What Naples Zoo Inc does
Mission
Naples zoo is accredited by the american zoo & aquarium association (aza) and has numerous animal exhibits placed on its 45-acre site. (continued on schedule o)each exhibit is unique and designed to simulate typical conditions for the animals and to ensure the visitors have as much visual interaction as possible while maintaining the safety of both the animals and guests. The zoo provides educational experiences to guests through question and answer formats with our zoo keepers, lectures and multimedia presentations incorporating information about nutritional diets, healthy/clean environments, veterinary care and methods for creating behavioral enrichment for the mental and physical well being for the wild animals in the zoo's care. The zoo educates its guests about the importance of conserving wild animals and their natural habitats.
As stated on its FY2025 Form 990.
Programs
Operation of an ecologically sensitive zoo and habitat for wild, endangered and/or threatened species. To educate the general public about the animals and other conservation related issues.
$7,805,277 spentof which $208,299 as grants$6,799,504 earned by the program95% of program spendingNaples zoo's education department exists to support the zoo's mission. This is accomplished through a diverse array of programming, developing mutually beneficial partnerships, and engaging the community in conservation action through outreach programs, camps and early-learning programming.
$412,766 spent$169,897 earned by the program5% of program spending
The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $8,218,043.
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 2018 to 2019, from $20M to $28M (+42%).
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: 2019 2% · 2020 2% · 2021 9% · 2022 6%. Grants only. Government contracts and fees sit inside program revenue.
44% of NAPLES ZOO INC’s revenue is contributions — about as donation-reliant as the typical peer (67% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 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
Jack Mulvena
President/CEO
Board chair
Denny Glass
Chairman
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 20 funders to 56 funders, grant income rose $208k → $877k.
22 of 126 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 41% 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 NAPLES ZOO INC’s funders (the co-funder graph). Top 30 of 126 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
NAPLES ZOO INC has a broad base — no single funder exceeds 10% 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
43% 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 NAPLES ZOO INC.
Largest funder’s share by year: 2017 44% · 2018 31% · 2019 61% · 2020 52% · 2021 61% · 2022 23% · 2023 17% — 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
37% of NAPLES ZOO INC's funders are still giving 3 years after their first grant; 57% 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
NAPLES ZOO INC draws 57% of its grant income from funders outside Florida, across 22 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $4.3M arriving through sponsors registered in 16 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
NAPLES ZOO INC holds deeper cash reserves than three-quarters of the 119 animals nonprofits its size.
this organization peer median middle 50% of peers· 119 animals nonprofits $10M–$100M, FY2025
Government funding NAPLES ZOO INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $431k on record.
- FEDERAL FINANCIAL ASSISTANCE - GENERAL $431k
- REFUNDS - GENERAL $10
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 NAPLES ZOO INC
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
86%
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 NAPLES ZOO INC: 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 NAPLES ZOO INC?
- NAPLES ZOO INC (Florida) receives grants from 126 organizations whose IRS filings report $10,363,699 to it, the largest being BILL & JULIA VAN DOMELEN FOUNDATION ($1,000,000). 72 of them have funded it in more than one year.
- How many funders does NAPLES ZOO INC have?
- IRS filings report 126 organizations giving $10,363,699 in grants to NAPLES ZOO INC, 72 of which have funded it in more than one year.
- Who is the largest funder of NAPLES ZOO INC?
- BILL & JULIA VAN DOMELEN FOUNDATION is the largest funder on record, with $1,000,000 in grants. The full list of funders is on this page.
- How can an organization like NAPLES ZOO INC 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.
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 126 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