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. WE ACHIEVE OUR MISSION BY MONITORING AND INVESTIGATING SCIENTIFIC USES OF ANIMALS, EXPOSING THE INHERENT CRUELTY IN ANIMAL EXPERIMENTATION. WE THEN PRESENT RELIABLE INFORMATION AND AN INFORMED VIEWPOINT FOR ADVOCATING PUBLIC POLICY CHANGES. WE PROVIDE RESOURCES TO STUDENTS, PARENTS, EDUCATORS, OTHER NONPROFIT ORGANIZATIONS, THE MEDIA, POLICY MAKERS, AND MEMBERS OF THE SCIENTIFIC COMMUNITY TO ADVANCE THE USE OF ALTERNATIVE, NON-ANIMAL METHODS IN SCHOOLS AND LABORATORIES WORLDWIDE.
Key facts about The American Anti-Vivisection Society
- EIN
- 23-0341990
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $404,299
- Grants made (2025)
- 19
- Average grant
- $21,279
- Median grant
- $17,500
- New grantees (estimate)
- 5% first-time grantees (1 of 19, 2025)
- Total assets
- $40,037,437
- Primary geography
- Florida (13% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
Who The American Anti-Vivisection Society funds
By grant dollars, the top recipient states for The American Anti-Vivisection Society's 19 itemized 2025 grants were Florida (13%), Oklahoma (13%) and Pennsylvania (11%). 84% of grants with a stated purpose were for general or operating support.
Is The American Anti-Vivisection Society open to new grantees?
5%
first-time grantees, 2025
In 2025, 1 of 19 grantees (5%) were first-time recipients. First grants averaged $5K; repeat grants $22K. How we count
Medians: $5K first-time, $18K repeat.
- 95% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−4%). Method
Estimate from itemized IRS Form 990-PF grant lists (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Next steps with The American Anti-Vivisection Society
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Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$40.0M
+6.6% YoY
Annual Giving
$404K
-27.4% YoY
Grant Count
19
+5.6% YoY
Avg Grant Size
$21K
-31.2% YoY
About The American Anti-Vivisection Society
Based on IRS filings
The American Anti-Vivisection Society is a nonprofit organization focused on Environment & Animals, based in Jenkintown, PA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $40.0M in total assets. In 2025, it awarded 19 grants totaling $404K. Net investment income was $2.4M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 19 itemized 2025 grant dollars.
States
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $40,037,437 | $37,546,542 | $34,756,487 |
| Revenue | $4,097,874 | $3,207,086 | $3,365,720 |
| Expenses | $2,775,874 | $3,031,590 | $2,465,525 |
| Qualifying Distributions | — | — | — |
| Net Investment Income | $2,366,913 | $1,776,885 | $1,056,948 |
| Distributable Amount | — | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2019 (received by the IRS May 11, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS May 14, 2026)
- IRS filings on file for fiscal years 2020–2024
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
Grant Size Distribution
89 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2025 grants, the largest recipients include Oklahoma Primate Sanctuary ($52,500), Ryerss Farm for Aged Equines ($43,360), World Federation for Animals ($31,939).
| Recipient | Purpose | Amount |
|---|---|---|
| OKLAHOMA PRIMATE SANCTUARY Newcastle, OK | GENERAL OPERATING SUPPORT AND VET CARE FOR PRIMATE SANCTUARY | $52,500 |
| RYERSS FARM FOR AGED EQUINES Pottstown, PA | DIRECT CARE EXPENSES FOR HORSES, BOTH RETIRED AND RESCUED | $43,360 |
| WORLD FEDERATION FOR ANIMALS Boston, MA | AAVS IS A FOUNDING MEMBER OF WFA, FORMED TO UNIFY AND STRENGTHEN INTERNATIONAL ANIMAL ADVOCACY | $31,939 |
| GLOBAL FEDERATION OF ANIMAL SANCTUARIES Phoenix, AZ | TO HELP SUPPORT AND ENSURE HIGH QUALITY CARE AT SANCTUARIES + SANCTUARY PRIZES FOR GIVING DAY FOR APES | $29,000 |
| BORN FREE USA Sacramento, CA | GENERAL OPERATING SUPPORT OF PRIMATE SANCTUARY | $17,500 |
| CENTER FOR GREAT APES Wauchula, FL | GENERAL OPERATING SUPPORT OF PRIMATE SANCTUARY | $17,500 |
| CHIMP HAVEN Keithville, LA | GENERAL OPERATING SUPPORT OF PRIMATE SANCTUARY | $17,500 |
| CHIMPANZEE SANCTUARY NORTHWEST Cle Elum, WA | GENERAL OPERATING SUPPORT OF PRIMATE SANCTUARY | $17,500 |
| EQUINE ADVOCATES Chatham, NY | GENERAL OPERATING SUPPORT OF EQUINE SANCTUARY | $17,500 |
| JUNGLE FRIENDS PRIMATE SANCTUARY Gainesville, FL | GENERAL OPERATING SUPPORT OF PRIMATE SANCTUARY | $17,500 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2025 IRS filing
From 2025 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Luke Klein After 42025 | President, CEO | 35 | $105,685 |
| Sue a Leary Until 42025 | President, CEO (Retired) | 35 | $41,090 |
| Nadia S Adawi | Board Member | 0.5 | — |
| Robert Finn | Board Member | 0.5 | — |
| Eileen Smith After 42025 | Board Member | 0.5 | — |
| Joseph Ludwig | Vice President | 1 | — |
| Aaron McIntyre | Treasurer | 1 | — |
| Denise Cowie | Secretary | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is The American Anti-Vivisection Society?
The American Anti-Vivisection Society is a nonprofit organization focused on Environment & Animals, based in Jenkintown, PA. It holds $40.0M in total assets as of 2025.
How large is The American Anti-Vivisection Society?
As of 2025, The American Anti-Vivisection Society holds $40.0M in total assets with $4.1M in annual revenue. It awarded 19 grants totaling $404K in 2025.
Where does The American Anti-Vivisection Society operate?
The American Anti-Vivisection Society has awarded grants in Arizona, California, Florida, Georgia, Indiana, Kentucky, Louisiana, Massachusetts, New York, Oklahoma, Oregon, Pennsylvania, Texas, Washington, Wisconsin.
What size grants does The American Anti-Vivisection Society award?
In 2025, The American Anti-Vivisection Society awarded 19 grants totaling $404K — an average of about $21K per grant, based on its IRS Form 990 filings.
What is The American Anti-Vivisection Society's EIN?
The American Anti-Vivisection Society's EIN (Employer Identification Number) is 23-0341990. IRS Form 990 filing data is available on this page for 2019–2025.
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Data last updated September 2026. Sourced from IRS Form 990-PF filings.