Arizona · Nonprofit
REID PARK ZOOLOGICAL SOCIETY
REID PARK ZOOLOGICAL SOCIETY (Arizona) receives grants from 53 organizations whose IRS filings report $4,981,675 to it, the largest being AJ & MD RUGGIERO MEMORIAL TRUST XXXXX4003 ($1,717,275). 35 of them have funded it in more than one year.
- Revenue FY2025
- $13M
- Funders on record
- 53
- Grants received
- $5.0M
- Net assets
- $17M
What Reid Park Zoological Society does
Mission
To connect people with animals, inspiring the protection of wild animals and wild places.
As stated on its FY2025 Form 990.
Program
Animal care and animal health - reid park zoo's largest program area is providing the best life for the animals under our care. Reid park zoo's highly dedicated animal care and veterinary team work to ensure the zoo's collection of nearly 400 animals is healthy and thriving. Animal wellness is overseen by the zoo's animal behavior and well-being program leader. Reid park zoo participates in the species survival plan (ssp) through the association of zoos and aquariums (aza) to ensure genetic diversity and healthy populations. The zoo also has a robust scientific research program, participating in research that advances the health and knowledge of species in human care and in the wild.conservation programs: reid park zoo continues to expand its conservation grant program to protect wild animals and wild places around the world. In fiscal year 2025, 15 grants were awarded. The zoo remains co-vice chair for the safe: andean highland flamingo program and has a leading role in the education working groups for safe: north american songbird and safe: north american monarch. The zoo regularly conducts free community science programs focusing on the native songbirds and monarchs that visit…
$11,573,573 spentof which $1,453,000 as grants$10,486,201 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $11,573,573.
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 2019 to 2020, from $10M to $18M (+76%).
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.
13% of REID PARK ZOOLOGICAL SOCIETY’s revenue is contributions — more earned-revenue than three-quarters of its peers (67% for the typical peer).
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.
Chief executive
Nancy Kluge
President & CEO
Board chair
Chad Driedger
Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 11 funders to 25 funders, grant income rose $180k → $811k.
13 of 53 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 15% 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 REID PARK ZOOLOGICAL SOCIETY’s funders (the co-funder graph). Top 30 of 53 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
REID PARK ZOOLOGICAL SOCIETY has a broad base — no single funder exceeds 34% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
Largest funder’s share by year: 2017 55% · 2018 39% · 2019 43% · 2020 55% · 2021 46% · 2022 31% · 2023 30% — 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
41% of REID PARK ZOOLOGICAL SOCIETY's funders are still giving 3 years after their first grant; 66% 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
REID PARK ZOOLOGICAL SOCIETY draws 54% of its grant income from funders outside Arizona, across 12 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $738k arriving through sponsors registered in 9 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
REID PARK ZOOLOGICAL SOCIETY holds deeper cash reserves than three-quarters of the 134 animals nonprofits its size.
this organization peer median middle 50% of peers· 134 animals nonprofits $10M–$100M, FY2025
Government funding REID PARK ZOOLOGICAL SOCIETY receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $16k on record.
- Institute of Museum and Library Services$16k
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 REID PARK ZOOLOGICAL SOCIETY
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 Arizona
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
72%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Part of a family of 1 related entity
- Reid Park Zoo Foundation · exempt
Screen this organization
A dated, signed PDF of the compliance screen for REID PARK ZOOLOGICAL SOCIETY: 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 REID PARK ZOOLOGICAL SOCIETY?
- REID PARK ZOOLOGICAL SOCIETY (Arizona) receives grants from 53 organizations whose IRS filings report $4,981,675 to it, the largest being AJ & MD RUGGIERO MEMORIAL TRUST XXXXX4003 ($1,717,275). 35 of them have funded it in more than one year.
- How many funders does REID PARK ZOOLOGICAL SOCIETY have?
- IRS filings report 53 organizations giving $4,981,675 in grants to REID PARK ZOOLOGICAL SOCIETY, 35 of which have funded it in more than one year.
- Who is the largest funder of REID PARK ZOOLOGICAL SOCIETY?
- AJ & MD RUGGIERO MEMORIAL TRUST XXXXX4003 is the largest funder on record, with $1,717,275 in grants. The full list of funders is on this page.
- How can an organization like REID PARK ZOOLOGICAL SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Arizona. 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 53 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