Louisiana · Nonprofit
Washington Humane Society
Washington Humane Society (Louisiana) receives grants from 5 organizations whose IRS filings report $264,140 to it, the largest being MG MEZZANOTTE FOUNDATION ($227,250). 1 of them have funded it in more than one year.
Against its field
Washington Humane Society has grown faster than three-quarters of the 4,983 animals nonprofits its size.
this organization peer median middle 50% of peers· 4,983 animals nonprofits under $100k, FY2024
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- Alley Cat Allies Incshared fundersportfolio match
- Lions Club of Bogalusa Inclocal
- Two Mauds Incportfolio match
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 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.
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.
64% of Washington Humane Society’s revenue is contributions — more earned-revenue than three-quarters of its peers (100% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 4 reported years ran a deficit.
Who funds it, year by year
2021 → 2023: the base held at 1 funder, grant income rose $250 → $20k.
From the IRS filings of Washington Humane Society’s funders (the co-funder graph). 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
Washington Humane Society leans on a few funders — its largest provides 86% of grant income and the top three 99%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2021 100% · 2023 100% — 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.
Where its funders are
Washington Humane Society draws 100% of its grant income from funders outside Louisiana, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 5 funders put you under-funded among the 400 organizations that share them.
- Alley Cat Allies Incshared fundersportfolio matchMD · backs 12 organizations that share your funders · its grantees resemble your mission
- Lions Club of Bogalusa InclocalLA · funds 3 organizations near you
- Two Mauds Incportfolio matchits grantees resemble your mission
- The Snyder Foundation for Animals Incportfolio matchits grantees resemble your mission
- On Shore Foundationportfolio matchits grantees resemble your mission
- FixGeorgiaPets Incportfolio matchits grantees resemble your mission
- United Spay Allianceportfolio matchits grantees resemble your mission
- Arkansas Animal Rescue Foundationportfolio matchits grantees resemble your mission
- Atlanta Humane Society & Society for the Prevention of Cruelty to Animals Incportfolio matchits grantees resemble your mission
- Federation of Humane Organizationsportfolio matchits grantees resemble your mission
- Humane Networkportfolio matchits grantees resemble your mission
- Animal Welfare Fund Incportfolio matchits grantees resemble your mission
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Organizations like Washington Humane Society
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Louisiana
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
75%
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 Washington 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Washington Humane Society?
- Washington Humane Society (Louisiana) receives grants from 5 organizations whose IRS filings report $264,140 to it, the largest being MG MEZZANOTTE FOUNDATION ($227,250). 1 of them have funded it in more than one year.
- How many funders does Washington Humane Society have?
- IRS filings report 5 organizations giving $264,140 in grants to Washington Humane Society, 1 of which have funded it in more than one year.
- Who is the largest funder of Washington Humane Society?
- MG MEZZANOTTE FOUNDATION is the largest funder on record, with $227,250 in grants. The full list of funders is on this page.
- How can an organization like Washington Humane Society find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Louisiana. 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 FY2024 (financials across 2021–2024), and the filings of 5funders 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 August 27, 2026. What this page cannot tell you · view filing