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The American Anti-Vivisection Society at a glanceMostly funded, not a grantmaker: see who funds it →

· Public charity

The American Anti-Vivisection Society

Since our founding in 1883, the mission of aavs has been to unequivocally oppose and work to end the use of animals in science and to oppose all forms of cruelty to animals.

$418k
Granted FY2025still arriving
19
Grants FY2025still arriving
15
States reached
$53k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Animals$3.7M
02FY2025 · 19 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 19 grants below total $404,299, the rows itemized in this filing. The $417,946 headline is the total grant expense on the return; the other $13,647 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k1 grant · $5k
  • $10k–50k17 grants · $347k
  • $50k–250k1 grant · $53k
$17,500
Median grant
15
States reached
$40M
Total assets
Largest grants
RecipientAmount
OKLAHOMA PRIMATE SANCTUARY$52,500
RYERSS FARM FOR AGED EQUINES$43,360
WORLD FEDERATION FOR ANIMALS$31,939
GLOBAL FEDERATION OF ANIMAL SANCTUARIES$29,000
PRIMATE RESCUE CENTER$17,500
PRIMATES INCORPORATED$17,500
EQUINE ADVOCATES$17,500
PRIMARILY PRIMATES$17,500
WILDLIFE RESCUE AND REHABILITATION INC$17,500
PEACEABLE PRIMATES SANCTUARY$17,500
SAVE THE CHIMPS$17,500
JUNGLE FRIENDS PRIMATE SANCTUARY$17,500
CHIMP HAVEN$17,500
BORN FREE USA$17,500
CENTER FOR GREAT APES$17,500
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 88% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%GLOBAL FEDERATION OF ANIMAL SANCTUARIES: $29k → 11%WORLD FEDERATION FOR ANIMALS CO WORLD ANIMAL NET INC: $91k → 16%RYERSS FARM FOR AGED EQUINES: $43k → 6%ALTERNATIVES RESEARCH & DEVELOPMENT FOUNDATION: $20k → 7%EQUINE ADVOCATES: $23k → 11%PRIMARILY PRIMATES: $32k → 16%OKLAHOMA PRIMATE SANCTUARY: $53k → 10%CENTER FOR GREAT APES: $96k → 25%PROJECT CHIMPS: $73k → 11%CHIMPANZEE SANCTUARY NORTHWEST: $43k → 11%CHIMP HAVEN: $118k → 22%GLOBAL FEDERATION OF ANIMAL SANCTUARIES: $26k → 11%WORLD FEDERATION FOR ANIMALS: $34k → 16%RYERSS FARM FOR AGED EQUINES: $36k → 6%EQUINE ADVOCATES: $21k → 11%PRIMARILY PRIMATES: $22k → 16%OKLAHOMA PRIMATE SANCTUARY: $53k → 10%CENTER FOR GREAT APES: $34k → 25%PROJECT CHIMPS: $70k → 11%CHIMPANZEE SANCTUARY NORTHWEST: $30k → 11%CHIMP HAVEN: $56k → 22%GLOBAL FEDERATION OF ANIMAL SANCTUARIES: $26k → 11%WORLD FEDERATION FOR ANIMALS: $32k → 16%RYERSS FARM FOR AGED EQUINES: $32k → 6%OKLAHOMA PRIMATE SANCTUARY: $51k → 10%CENTER FOR GREAT APES: $20k → 25%PROJECT CHIMPS: $50k → 11%CHIMPANZEE SANCTUARY NORTHWEST: $23k → 11%CHIMP HAVEN: $50k → 22%GLOBAL FEDERATION OF ANIMAL SANCTUARIES: $24k → 11%RYERSS FARM FOR AGED EQUINES: $30k → 6%OKLAHOMA PRIMATE SANCTUARY: $50k → 10%CENTER FOR GREAT APES: $19k → 25%PROJECT CHIMPS: $50k → 11%CHIMP HAVEN: $50k → 22%RYERSS FARM FOR AGED EQUINES: $26k → 6%OKLAHOMA PRIMATE SANCTUARY: $50k → 10%PROJECT CHIMPS: $34k → 11%CHIMP HAVEN: $32k → 22%RYERSS FARM FOR AGED EQUINES: $25k → 6%MINDY'S MEMORY PRIMATE SANCTUARY: $50k → 10%PROJECT CHIMPS: $19k → 11%RYERSS FARM FOR AGED EQUINES: $25k → 6%MINDY'S MEMORY PRIMATE SANCTUARY: $50k → 10%RYERSS FARM FOR AGED EQUINES: $23k → 6%OKLAHOMA PRIMATE SANCTUARY: $50k → 10%RYERSS FARM FOR AGED EQUINES: $23k → 6%MINDY'S MEMORY PRIMATE SANCTUARY: $50k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

WA
WI
NY
MA
OR
IN
PA
CA
KY
AZ
NM
DC
OK
LA
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

99%of every dollar goes to organizations it has funded before.
$3.6M · 18 repeat orgs$33k to everyone else

Grantees it renews have grown median revenue +164% since the first grant, against +116% for those funded once.

18 repeat relationships: 18 still active in FY2025, 0 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

18
2

Total granted

$3.6M
$28k

Median revenue growth · since first grant

+164%
+116%

Still filing today

100%
100%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $5k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
AnimalsPhilanthropyOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • OP
    Oklahoma Primate Sanctuary Inc
    9× · 2017–2025 · $456k · revenue +418% · 26% of their budget
  • CHIMP HAVEN INC
    9× · 2017–2025 · $372k · revenue +189%
  • PC
    PROJECT CHIMPS
    9× · 2017–2025 · $349k · revenue +129%

Funded once

  • AR
    ALTERNATIVES RESEARCH AND DEVELOPMENT FOUNDATIONgraduated
    one grant, 2017 · $20k · revenue +116%
  • TS
    TIGER SANCTUARIES INCgraduated
    one grant, 2019 · $8k · revenue +45%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Project Primate Inc

Protect primate populations

Animals
2
Asia Wild

Asia Wild is committed to rescuing and protecting the welfare of animals worldwide. They support small, locally-focused organizations that tirelessly combat numerous issues that threaten wildlife survival, including poaching, abuse,…

Animals
3
Professional Animal Retirement Center Inc

Professional animal retirement center (parc), inc. known locally as black pine animal sanctuary was established to provide refuge to displaced, captive-raised exotic animals for the rest of their lives and to educate people about…

Animals
4
Global Animal Partnership
Animals
5
Forever Wild Wildlife Rescue
Animals
6
Peace River Refuge & Ranch Inc

Forest Animal Rescue protects wildlife by preserving natural habitats for the safe release of rehabilitated animals and the rehabilitation and release of black bears.

Animals
7
Chase Animal Rescue and Sanctuary Inc

Our mission is to bring the community and the exotic primate/exotic preservation mission together in a way that enhances lives. To help preserve critically endangered species through sharing of data, animals, and resources with other…

Animals
8
International Primate Protection League

Protecting the world's remaining primates by monitoring and exposing illegal trade, supporting a worldwide network of overseas sanctuaries and ngo's, publicising the plight of abused primates, and operating a sanctuary for resued gibbons.

Animals
9
Progressive Animal Welfare Society aka Paws

A champion for animals since 1967, PAWS is a nationally recognized leader - rehabilitating injured and orphaned wildlife, sheltering and adopting homeless cats and dogs, and educating people to make a better world for animals and people.

Animals
10
Wildlife Sos

Protecting india's precious wildlife from poaching, habitat loss, and human exploitation since 1995.

Animals
11
International Exotic Animal Sanctuary

Care for abused, abandoned and illegally obtained large cats and bears.

Animals
12
Barn Sanctuary

Rescue farmed animals and inspire people to embrace a plant-based lifestyle.

Animals
How this is measured
The grantee most central to the portfolio’s shape is Project Chimps; the most unlike its peers is Tiger Sanctuaries Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

22 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

2
Load-bearing (≥25% of a budget)
14
Early backer (in before they grew)
22/22
Grantees still filing
20/22
Grew since first funded

Where the money sits, by cause and then by grantee

Oklahoma Primate Sanctuary Inc: $456,000 · AnimalsOklahoma Primate Sanctuary IncCHIMP HAVEN INC: $372,366 · AnimalsCHIMP HAVEN INCPROJECT CHIMPS: $348,664 · AnimalsPROJECT CHIMPSCenter for Orangutan & Chimpanzee Conservation Inc: $255,165 · AnimalsCenter for Orangutan & Chimpanzee Conservation IncSAVE THE CHIMPS INC: $221,816 · AnimalsSAVE THE CHIMPS INCCHIMPANZEE SANCTUARY NORTHWEST: $197,334 · AnimalsCHIMPANZEE SANCTUARY NORTHWESTWORLD FEDERATION FOR ANIMALS INC: $171,607 · AnimalsPRIMARILY PRIMATES INC: $170,750 · AnimalsGLOBAL FEDERATION OF ANIMAL SANCTUARIES: $162,000 · AnimalsEQUINE ADVOCATES INCORPORATED: $162,000 · AnimalsJungle Friends Primate Sanctuary: $149,000 · AnimalsBorn Free USA united with API: $147,000 · AnimalsPRIMATES INCORPORATED: $145,000 · AnimalsPeaceable Primate Sanctuary: $145,000 · Animals+5 more: $212,331 · Animals+5 moreRyerss Farm for Aged Equines: $264,268 · OtherCOMMUNITY INITIATIVES: $97,500 · PhilanthropyNEW MEXICO COMMUNITY FOUNDATION: $15,000 · Philanthropy
Animals$3,316,033Other$264,268Philanthropy$112,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetOklahoma Primate Sanctuary Inc: $456,000 over 9y, 26% of budgetCHIMP HAVEN INC: $372,366 over 9y, 1.0% of budgetPROJECT CHIMPS: $348,664 over 9y, 2.1% of budgetRyerss Farm for Aged Equines: $264,268 over 9y, 4.4% of budgetCenter for Orangutan & Chimpanzee Conservation Inc: $255,165 over 9y, 1.5% of budgetSAVE THE CHIMPS INC: $221,816 over 9y, 0.6% of budgetCHIMPANZEE SANCTUARY NORTHWEST: $197,334 over 9y, 2.9% of budgetWORLD FEDERATION FOR ANIMALS INC: $171,607 over 4y, 47% of budgetPRIMARILY PRIMATES INC: $170,750 over 9y, 2.6% of budgetGLOBAL FEDERATION OF ANIMAL SANCTUARIES: $162,000 over 9y, 5.6% of budgetEQUINE ADVOCATES INCORPORATED: $162,000 over 9y, 1.4% of budgetJungle Friends Primate Sanctuary: $149,000 over 9y, 7.3% of budgetBorn Free USA united with API: $147,000 over 9y, 0.9% of budgetPRIMATES INCORPORATED: $145,000 over 9y, 8.8% of budgetPeaceable Primate Sanctuary: $145,000 over 9y, 9.5% of budgetCOMMUNITY INITIATIVES: $97,500 over 8y, 0.1% of budgetWILDLIFE RESCUE AND REHABILITATION INC: $94,831 over 6y, 0.4% of budgetPRIMATE RESCUE CENTER: $85,000 over 5y, 4.7% of budgetALTERNATIVES RESEARCH AND DEVELOPMENT FOUNDATION: $20,000 over 1y, 3.1% of budgetTIGER SANCTUARIES INC: $7,500 over 1y, 4.5% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds Oklahoma Primate Sanctuary Inc ↗
  • Who funds CHIMP HAVEN INC ↗
  • Who funds PROJECT CHIMPS ↗
  • Who funds Ryerss Farm for Aged Equines ↗
  • Who funds Center for Orangutan & Chimpanzee Conservation Inc ↗
  • Who funds SAVE THE CHIMPS INC ↗
  • Who funds CHIMPANZEE SANCTUARY NORTHWEST ↗
  • Who funds WORLD FEDERATION FOR ANIMALS INC ↗
  • Who funds PRIMARILY PRIMATES INC ↗
  • Who funds GLOBAL FEDERATION OF ANIMAL SANCTUARIES ↗
  • Who funds EQUINE ADVOCATES INCORPORATED ↗
  • Who funds Jungle Friends Primate Sanctuary ↗
  • Who funds Born Free USA united with API ↗
  • Who funds PRIMATES INCORPORATED ↗
  • Who funds Peaceable Primate Sanctuary ↗
  • Who funds COMMUNITY INITIATIVES ↗
  • Who funds WILDLIFE RESCUE AND REHABILITATION INC ↗
  • Who funds PRIMATE RESCUE CENTER ↗
  • Who funds ALTERNATIVES RESEARCH AND DEVELOPMENT FOUNDATION ↗
  • Who funds NEW MEXICO COMMUNITY FOUNDATION ↗
  • Who funds TIGER SANCTUARIES INC ↗
  • Who funds PAN AFRICAN SANCTUARY ALLIANCE INC ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

National Anti-Vivisec…A Kinder World Founda…The Summerlee Foundat…Humane World for Anim…Dj and T FoundationAhimsa FoundationHead & Heart Foundati…Arcus FoundationMightycause Charitabl…People for the Ethica…The Michele & Agnese …Animal Welfare Instit…
National Anti-Vivisection SocietyIL26.4× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Anti-Vivisection Society · A Kinder World Foundation · The Summerlee Foundation · Humane World for Animals Inc · Dj and T Foundation · Ahimsa Foundation · Head & Heart Foundation Tr 12319 · Arcus Foundation · Mightycause Charitable Foundation · People for the Ethical Treatment of Animals Inc · The Michele & Agnese Cestone Foundation Inc - C/O Bank of America Private Bank · Animal Welfare Institute

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The American Anti-Vivisection Society funds: left to right is the share of its income from government, bottom to top the share from The American Anti-Vivisection Society. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%3%13%28%50%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 68%
  • Pan African Sanctuary Alliance Inc: 68% of income from government
no gov moneyreceives it· size = income
5get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–90%
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The American Anti-Vivisection Society?

Find your warmest path to The American Anti-Vivisection Society through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 22 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home