Arizona · Nonprofit
ARIZONA HUMANE SOCIETY
ARIZONA HUMANE SOCIETY (Arizona) receives grants from 245 organizations whose IRS filings report $38,672,723 to it, the largest being The Rob Walton Foundation ($5,010,000). 173 of them have funded it in more than one year.
- Revenue FY2025
- $47M
- Funders on record
- 245
- Grants received
- $39M
- Net assets
- $131M
What Arizona Humane Society does
Mission
We save the most vulnerable animals and enrich the lives of pets and people.
As stated on its FY2025 Form 990.
Programs
Ahs' serves as a safety net for the valley's most vulnerable animals. Our lifesaving programs, including our lazin animal foundation trauma hospital, mutternity suites, kitten nursery, bottle baby kitten icu and parvo puppy icu save the lives of pets routinely euthanized in shelters. Last year, our trauma hospital treated 20,666 sick, injured and abused homeless pets more than 83 percent of all the animals who came through our doors. We also cared for 566 critically ill dogs in our parvo puppy icu and 1148 moms and babies in our mutternity and meowturnity suites. Our kitten nursery and bottle baby kitten icu cared for 3,987 newborn kittens and puppies.
$20,592,066 spent$4,980,062 earned by the program57% of program spendingLast year, ahs saved 18,814 animals through adoption and other placement outlets, and our ethical no-kill philosophy ensures we never euthanize a pet for space or length of time. We are also committed to keeping pets in homes by connecting pet owners with affordable medical, behavior and support services. Our pet resource center handles more than 360 calls a day, helping to provide resources that help pets with their families. In addition, we provided spay/neuter surgery to 24,916 owned and shelter animals, helping to reduce pet overpopulation in our community, and veterinary services to 40,075 owned animals through our veterinary clinics. Our foster heroes expand our capacity for care, providing temporary homes for 400-800 pets at any given time, while our volunteers give over 98,250 hours of their time to our pets each year.
$8,488,208 spent$3,368,398 earned by the program24% of program spendingAhs' emergency animal medical technicians are on the road 365 days a year rescuing more than 13,080 abused, injured and abandoned animals. We seek justice for abused animals, and our eamts partner with law enforcement to conduct 10,700 cruelty investigations each year. This past year, our eamts responded to 134 cases in which we seized 10 animals or more. We seized 2,567 animals total from these cases. We advance legislation to protect pets involved in the most horrific cases and advocate to fight cruelty and neglect. Ahs also serves as the designated responder for animals in distress during natural disasters.
$4,494,845 spent$1,879,257 earned by the program13% of program spendingOur support teams, which include facilities & maintenance, transport, animal care & experience, customer experience, warehouse and operations support and service operations management, play a critical role in helping us save the lives of homeless pets in our community.
$2,263,386 spent$169,795 earned by the program6% of program spending
The 4 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $35,838,505.
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 2020 to 2021, from $70M to $95M (+35%).
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: 2021 6%. Grants only. Government contracts and fees sit inside program revenue.
74% of ARIZONA HUMANE SOCIETY’s revenue is contributions — more donation-reliant than 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
Steven Hansen
President & CEO
Board chair
Suzanne Hensing
Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 50 funders to 117 funders, grant income rose $1.2M → $7.8M.
35 of 245 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 29% 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 ARIZONA HUMANE SOCIETY’s funders (the co-funder graph). Top 30 of 245 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
ARIZONA HUMANE SOCIETY has a broad base — no single funder exceeds 13% of grant income, and it takes 7 funders to reach half.
the vertical line marks half of all grant income — 7 funders to its left
48% 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 ARIZONA HUMANE SOCIETY.
Largest funder’s share by year: 2017 28% · 2018 18% · 2019 27% · 2020 18% · 2021 29% · 2022 26% · 2023 26% — broadly stable.
“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
53% of ARIZONA HUMANE SOCIETY'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
ARIZONA HUMANE SOCIETY draws 64% of its grant income from funders outside Arizona, across 32 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $11M arriving through sponsors registered in 23 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
ARIZONA HUMANE SOCIETY has grown faster than half of the 134 animals nonprofits its size.
this organization peer median middle 50% of peers· 134 animals nonprofits $10M–$100M, FY2025
Organizations like ARIZONA HUMANE 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
79% of spending goes to programs.
Governance
Public support
93%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for ARIZONA HUMANE 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 ARIZONA HUMANE SOCIETY?
- ARIZONA HUMANE SOCIETY (Arizona) receives grants from 245 organizations whose IRS filings report $38,672,723 to it, the largest being The Rob Walton Foundation ($5,010,000). 173 of them have funded it in more than one year.
- How many funders does ARIZONA HUMANE SOCIETY have?
- IRS filings report 245 organizations giving $38,672,723 in grants to ARIZONA HUMANE SOCIETY, 173 of which have funded it in more than one year.
- Who is the largest funder of ARIZONA HUMANE SOCIETY?
- The Rob Walton Foundation is the largest funder on record, with $5,010,000 in grants. The full list of funders is on this page.
- How can an organization like ARIZONA HUMANE 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.
Play a game about who funds Arizona Humane Society →
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 245 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