Maryland · Nonprofit
MARYLAND ZOOLOGICAL SOCIETY INC
MARYLAND ZOOLOGICAL SOCIETY INC (Maryland) receives grants from 78 organizations whose IRS filings report $4,286,283 to it, the largest being T ROWE PRICE FOUNDATION ($313,000). 55 of them have funded it in more than one year.
- Revenue FY2025
- $25M
- Funders on record
- 78
- Grants received
- $4.3M
- Net assets
- $77M
What Maryland Zoological Society Inc does
Mission
To engage people in the wonders of the living world through personal encounters with animals, fostering empathy and lifelong support for conservation of wildlife and wild places.
As stated on its FY2025 Form 990.
Programs
Visitor services: provide assistance to over 383,000 guests, annually. Services include ticket and membership sales, shuttle service, carousel and train rides and animal experiences, including giraffe feeding and penguin encounters. The zoo also provides security and first aid. Zoo publications include an annual report and monthly e-mail updates. The zoo maintains public relations and marketing programs (including website and social media) to inform visitors of zoo news and support positive guest experiences.
$13,666,146 spent$7,276,491 earned by the program73% of program spendingFlora and fauna: zoo staff provide daily care for over 1,130 animals from routine husbandry procedures, I.e. Care and feeding, training and enrichment, special assistance with breeding and births. Zoo animal, horticulture, maintenance and exhibit staff provide upkeep to exhibit areas, as well as gardens and fauna found elsewhere on zoo grounds.
$4,516,120 spentof which $76,508 as grants24% of program spendingEducational services: the zoo offers a variety of educational programs for students and teachers, both on and off zoo grounds. Staff and volunteers are stationed throughout the zoo daily to teach guests about wildlife and conservation through stations, scripted talks, exhibit interpretation, and handling animal ambassadors. The zoo to you mobile outreach program takes the zoo to classrooms, senior centers and other facilities all over the state.
$589,846 spent$493,815 earned by the program3% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $18,772,112.
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 $57M to $68M (+19%).
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 55% · 2018 55% · 2019 65% · 2020 63% · 2021 58% · 2022 48% · 2023 45% · 2024 60% · 2025 52%. Grants only. Government contracts and fees sit inside program revenue.
65% of MARYLAND ZOOLOGICAL SOCIETY 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. 4 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 22 funders to 34 funders, grant income rose $220k → $402k.
13 of 78 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 25% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $360k from 3 payers (the payer shares this organization's board, largest Baltimore Community Foundation Inc). These are real filings, and they are not money MARYLAND ZOOLOGICAL SOCIETY INC raised.
From the IRS filings of MARYLAND ZOOLOGICAL SOCIETY INC’s funders (the co-funder graph). Top 30 of 78 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
MARYLAND ZOOLOGICAL SOCIETY INC has a broad base — no single funder exceeds 7% of grant income, and it takes 10 funders to reach half.
the vertical line marks half of all grant income — 10 funders to its left
37% 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 MARYLAND ZOOLOGICAL SOCIETY INC.
Largest funder’s share by year: 2017 23% · 2018 20% · 2019 20% · 2020 16% · 2021 13% · 2022 14% · 2023 18% — 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 MARYLAND ZOOLOGICAL SOCIETY INC's funders are still giving 3 years after their first grant; 71% 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
87% of MARYLAND ZOOLOGICAL SOCIETY INC's grant income comes from Maryland funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $1.1M 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.
Against its field
MARYLAND ZOOLOGICAL SOCIETY INC runs a healthier operating margin than half of the 134 animals nonprofits its size.
this organization peer median middle 50% of peers· 134 animals nonprofits $10M–$100M, FY2025
Government funding MARYLAND ZOOLOGICAL SOCIETY INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $10.0M on record — $25k federal, $10.0M state.
- Department of State$25k
- Grant$10.0M
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 MARYLAND ZOOLOGICAL SOCIETY 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 Maryland
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
87% of spending goes to programs.
Governance
Public support
93%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Part of a family of 1 related entity
- Mzib Hospital LLC · disregarded
Screen this organization
A dated, signed PDF of the compliance screen for MARYLAND ZOOLOGICAL SOCIETY 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 MARYLAND ZOOLOGICAL SOCIETY INC?
- MARYLAND ZOOLOGICAL SOCIETY INC (Maryland) receives grants from 78 organizations whose IRS filings report $4,286,283 to it, the largest being T ROWE PRICE FOUNDATION ($313,000). 55 of them have funded it in more than one year.
- How many funders does MARYLAND ZOOLOGICAL SOCIETY INC have?
- IRS filings report 78 organizations giving $4,286,283 in grants to MARYLAND ZOOLOGICAL SOCIETY INC, 55 of which have funded it in more than one year.
- Who is the largest funder of MARYLAND ZOOLOGICAL SOCIETY INC?
- T ROWE PRICE FOUNDATION is the largest funder on record, with $313,000 in grants. The full list of funders is on this page.
- How can an organization like MARYLAND ZOOLOGICAL SOCIETY INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Maryland. 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 78 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