Arizona · Nonprofit
Humane Society of Southern Arizona
Humane Society of Southern Arizona (Arizona) receives grants from 92 organizations whose IRS filings report $6,862,445 to it, the largest being DOROTHY D AND JOSEPH A MOLLER FOUNDATION ($1,413,900). 60 of them have funded it in more than one year.
- Revenue FY2025
- $11M
- Funders on record
- 92
- Grants received
- $6.9M
- Net assets
- $28M
What Humane Society of Southern Arizona does
Mission
To compassionately serve pets and the people who love them.
As stated on its FY2025 Form 990.
Programs
ANIMAL SHELTER AND PLACEMENT SERVICES -- HSSA prides itself on providing the highest level of service to the pets in its care. The happier, healthier, and more confident pets are, the more likely it is that they will find loving homes. This year, we sheltered over 3100 pets, reunited over 130 lost pets with their families, and helped over 2500 pets find loving homes. Our foster care volunteers provided safe, quiet homes for over 1,000 pets to recover or grow prior to their adoptions and over 700 volunteers gave over 30,000 hours to support the pets in our care.
$4,001,117 spent$447,995 earned by the program56% of program spendingVETERINARY SERVICES - HSSA's team of veterinary professionals provide emergency services, preventive surgical services, and dental services to our shelter pets, public pets, and to our pet partners. More than 7,100 spay and neuter surgeries were completed across our public clinic, community cat program and shelter pets; over 250 dental surgeries were provided to owned and shelter pets as well as over 180 special surgeries.
$2,428,876 spent$714,883 earned by the program34% of program spendingENGAGEMENT & OUTREACH -- HSSA's engagement and outreach programs, which support community members of all ages, and proactively support the human-animal bond, were able to support 362 families through our pet pantry, ensuring that no none has to make the difficult choice between their own needs and those of their pets. 30,561 people were reached through the Pet VIP therapy and visitation program.
$744,500 spent$138,939 earned by the program10% of program spending
The 3 programs described on its FY2023 Form 990, listed largest first by expense. Program spending in total: $7,174,493.
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 $24M to $30M (+24%).
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: 2020 8% · 2022 10% · 2023 3% · 2024 2%. Grants only. Government contracts and fees sit inside program revenue.
73% of Humane Society of Southern Arizona’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. 1 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 27 funders to 41 funders, grant income fell $971k → $963k.
25 of 92 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 45% 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 Humane Society of Southern Arizona’s funders (the co-funder graph). Top 30 of 92 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
Humane Society of Southern Arizona has a broad base — no single funder exceeds 21% of grant income, and it takes 5 funders to reach half.
the vertical line marks half of all grant income — 5 funders to its left
58% 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 Humane Society of Southern Arizona.
Largest funder’s share by year: 2017 30% · 2018 31% · 2019 31% · 2020 31% · 2021 24% · 2022 16% · 2023 23% — 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
47% of Humane Society of Southern Arizona's funders are still giving 3 years after their first grant; 65% 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
Humane Society of Southern Arizona draws 76% of its grant income from funders outside Arizona, across 21 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $3.1M arriving through sponsors registered in 15 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
Humane Society of Southern Arizona is better cushioned 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 Humane Society of Southern Arizona
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
62% of spending goes to programs.
Governance
Public support
90%
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 Humane Society of Southern Arizona: 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 Humane Society of Southern Arizona?
- Humane Society of Southern Arizona (Arizona) receives grants from 92 organizations whose IRS filings report $6,862,445 to it, the largest being DOROTHY D AND JOSEPH A MOLLER FOUNDATION ($1,413,900). 60 of them have funded it in more than one year.
- How many funders does Humane Society of Southern Arizona have?
- IRS filings report 92 organizations giving $6,862,445 in grants to Humane Society of Southern Arizona, 60 of which have funded it in more than one year.
- Who is the largest funder of Humane Society of Southern Arizona?
- DOROTHY D AND JOSEPH A MOLLER FOUNDATION is the largest funder on record, with $1,413,900 in grants. The full list of funders is on this page.
- How can an organization like Humane Society of Southern Arizona 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 Humane Society of Southern Arizona →
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 92 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