Nonprofit · EIN 23-0341990
AMERICAN ANTI-VIVISECTION SOCIETY
Tax-exempt · JENKINTOWN, PA 19046
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $4,097,874 | $2,775,874 | $1,322,000 | $40,037,437 | $1,959,292 | $38,078,145 |
| December 31, 2024 | 990 | $3,207,086 | $3,031,590 | $175,496 | $37,546,542 | $2,217,403 | $35,329,139 |
| December 31, 2023 | 990 | $3,365,720 | $2,465,525 | $900,195 | $34,756,487 | $1,712,335 | $33,044,152 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,587,960
- Membership dues
- $252,720
- Program service revenue
- $143,001
- Investment income
- $2,366,913
- Net gain from sales of assets
- $1,549,755
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $417,946
- Compensation of officers, directors and key employees
- $176,036
- Other salaries and wages
- $674,905
- Salaries, compensation and benefits (total)
- $1,102,951
- Professional fundraising fees
- $0
- Legal fees
- $18,479
- Accounting fees
- $42,563
- Occupancy
- $144,103
- Depreciation
- $11,095
- Program services (functional)
- $1,859,636
- Management and general (functional)
- $463,471
- Fundraising (functional)
- $452,767
Balance sheet and other
- Total assets, start of year
- $37,546,542
- Total assets, end of year
- $40,037,437
- Total liabilities, end of year
- $1,959,292
- Net assets, end of year
- $38,078,145
- Land, buildings and equipment
- $13,598
- Publicly traded securities
- $34,113,515
- Net assets without donor restrictions
- $35,643,401
- Net assets with donor restrictions
- $2,434,744
- Gross receipts
- $8,925,184
- Employees
- 16
- Volunteers
- 10
- Year formed
- 1883
- State of legal domicile
- PA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| LUKE KLEIN AFTER 42025 | PRESIDENT, CEO Trustee or director, Officer | 35 | $105,685 | $4,538 | $15,793 |
| SUE A LEARY UNTIL 42025 | PRESIDENT, CEO (RETIRED) Trustee or director, Officer | 35 | $41,090 | $15,462 | $2,239 |
| NADIA S ADAWI | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| ROBERT FINN | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| EILEEN SMITH AFTER 42025 | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| JOSEPH LUDWIG | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| AARON MCINTYRE | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| DENISE COWIE | SECRETARY Trustee or director, Officer | 1 | $0 | $0 | $0 |
990 for the year ended December 31, 2024: 8 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| LUKE KLEIN | EXECUTIVE VICE PRESIDENT, BOARD MEMBER Trustee or director | 35 | $92,215 | $0 | $13,486 |
| SUE A LEARY | PRESIDENT, CEO Trustee or director, Officer | 35 | $68,260 | $20,000 | $5,942 |
| NADIA S ADAWI | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| ROBERT FINN | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| FRANCIS KRAFCHIK DECEASED IN 2024 | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| JOSEPH LUDWIG | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| AARON MCINTYRE | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| DENISE COWIE | SECRETARY Trustee or director, Officer | 1 | $0 | $0 | $0 |
990 for the year ended December 31, 2023: 7 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| SUE A LEARY | PRESIDENT Trustee or director, Officer | 35 | $65,203 | $20,000 | $5,942 |
| NADIA S ADAWI | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| ROBERT FINN | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| FRANCIS KRAFCHIK | BOARD MEMBER Trustee or director | 0.5 | $0 | $0 | $0 |
| JOSEPH LUDWIG | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| AARON MCINTYRE | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| DENISE COWIE | SECRETARY Trustee or director, Officer | 1 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 801 OLD YORK RD STE 204, JENKINTOWN, PA 19046-1611
- Principal officer (990 for 2025)
- LUKE KLEIN, 801 OLD YORK ROAD NOBLE PLAZA 204, JENKINTOWN, PA 19046
- Signed the 990
- LUKE KLEIN, PRESIDENT
- Phone
- (215) 887-0816
- Website
- WWW.AAVS.ORG
- Return prepared by
- DUNLAPSLK PC
Mission
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.
Program accomplishments
- ACTIVITIES INCLUDE LEGAL, PUBLIC POLICY, AND EDUCATIONAL ADVOCACY TO HELP ANIMALS USED IN LABORATORIES, ALONG WITH PUBLICATIONS AND ACTION ALERTS THAT PROVIDE MEMBERS AND SUPPORTERS WITH TIMELY ANALYSIS AND EFFECTIVE ADVOCACY TOOLS. IN 2025, AAVS ENGAGED IN RESEARCH, ANALYSIS, AND ACTION ON ISSUES INVOLVING ANIMAL EXPERIMENTATION, FEDERAL OVERSIGHT AND ENFORCEMENT, AND THE ADVANCEMENT OF HUMAN-RELEVANT, NON-ANIMAL METHODS, ESPECIALLY IN FEDERALLY FUNDED BIOMEDICAL RESEARCH. THIS WORK INCLUDED PUBLIC POLICY ADVOCACY AND ANALYSIS CONCERNING BIRDS AND OTHER ANIMALS USED IN RESEARCH WHO HAVE HISTORICALLY RECEIVED INADEQUATE LEGAL PROTECTION, AS WELL AS SCRUTINY OF GOVERNMENT IMPLEMENTATION AND ENFORCEMENT OF ANIMAL WELFARE REQUIREMENTS. A QUARTERLY MAGAZINE, A-V, AND A MONTHLY ONLINE NEWSLETTER DISTRIBUTED TO MEMBERS AND SUPPORTERS PROVIDED RELIABLE INFORMATION, UNIQUE INSIGHTS AND ANALYSIS, AND OPPORTUNITIES FOR PUBLIC ENGAGEMENT. IN 2025, AAVS ALSO PROVIDED SUBSTANTIAL GRANTS TO SANCTUARIES TO EXPAND CAPACITY AND CARE FOR ANIMALS RELEASED FROM LABORATORIES. THIS CRITICAL SUPPORT INCLUDED ADDITIONAL FUNDING TO HELP OFFSET RISING VETERINARY COSTS. AN ANNUAL GRANT WAS ALSO MADE TO SUPPORT LIFETIME CARE FOR YOUNG CHIMPANZEES RELEASED FROM A LABORATORY WHEN BABIES, NOW LIVING AT CHIMP HAVEN. AAVS CONTINUED ITS MEMBERSHIP IN WORLD FEDERATION FOR ANIMALS AND ITS INVOLVEMENT IN INTERNATIONAL EFFORTS TO ADVANCE PROTECTION FOR ANIMALS. NOTE THAT THE GRANTS EXPENSE ABOVE INCLUDES GRANTS PAID IN 2025 ($ 392,211) PLUS A GRANTS PAYABLE LIABILITY ADJUSTMENT OF ($25,735) RELATED TO A LONG-TERM FUNDING COMMITMENT TO PROVIDE LIFETIME CARE FOR YOUNG CHIMPANZEES RELEASED FROM A LABORATORY WHEN BABIES, NOW LIVING AT CHIMP HAVEN.Expenses $1,077,551 · grants $417,946
- AAVS'S ANIMALEARN PROGRAM WORKS TO END VIVISECTION AND DISSECTION IN THE CLASSROOM BY ADVOCATING FOR AND PROMOTING HUMANE SCIENCE EDUCATION POLICY. ITS HIGHLY REGARDED FREE LENDING LIBRARY, THE SCIENCE BANK, PROVIDES EFFECTIVE NON-ANIMAL ALTERNATIVES FOR ALL GRADE LEVELS, FROM ELEMENTARY SCHOOL THROUGH ADVANCED TRAINING FOR HEALTH PROFESSIONALS. IN 2025, THE SCIENCE BANK CONTINUED TO FULFILL INCREASING NUMBERS OF REQUESTS FOR HUMANE EDUCATION MATERIALS. ANIMALEARN STAFF HOST DEMONSTRATIONS AT EDUCATOR CONFERENCES, EXPOSING TEACHERS AND SCHOOL ADMINISTRATORS TO INNOVATIVE ALTERNATIVES TO THE DISSECTION OF FROGS, CATS, FETAL PIGS, AND OTHER ANIMALS. EDUCATIONAL MATERIALS ALSO INFORM THE PUBLIC ABOUT THE HARMS OF ANIMAL USE IN SCIENCE EDUCATION, INCLUDING ETHICAL, ENVIRONMENTAL, HEALTH, AND LONG-TERM COST CONCERNS. OUTSTANDING HUMANE EDUCATORS AND STUDENTS WERE PUBLICLY RECOGNIZED BY ANIMALEARN IN 2025 AND PRESENTED WITH AWARDS CONSISTING OF NON-ANIMAL DISSECTION ALTERNATIVES AND HUMANE SCIENCE RESOURCES.Expenses $309,745
- AAVS MANAGES THE LEAPING BUNNY PROGRAM OF THE COALITION FOR CONSUMER INFORMATION ON COSMETICS (CCIC), WHICH IS CHAIRED BY AAVS PRESIDENT LUKE KLEIN. THE LEAPING BUNNY PROGRAM PROVIDES A HIGHLY VALUED AND TRUSTED SERVICE FOR COMPASSIONATE CONSUMERS SEEKING PRODUCTS THAT ARE NOT TESTED ON ANIMALS. THROUGH ITS CRUELTY-FREE STANDARD AND INTERNATIONALLY RECOGNIZED LEAPING BUNNY LOGO, THE PROGRAM CERTIFIES COMPANIES PRODUCING CRUELTY-FREE COSMETICS, PERSONAL CARE PRODUCTS, AND HOUSEHOLD PRODUCTS. THE LIST OF MORE THAN 2,300 CERTIFIED COMPANIES IS MADE PUBLICLY AVAILABLE AT NO COST ON LEAPINGBUNNY.ORG AND THROUGH SMARTPHONE APPS. PROGRAM STAFF OVERSEE ANNUAL RECOMMITMENTS BY CERTIFIED COMPANIES AND CONDUCT AUDITS OF SELECTED COMPANIES TO HELP ENSURE COMPLIANCE WITH THE STANDARD. THE PROGRAM ALSO CONTINUED DEVELOPMENT AND IMPLEMENTATION OF THE LEAPING BUNNY CHINA QUALIFICATION PROGRAM, REQUIRING CERTIFIED COMPANIES TO PERMIT AUDITS OF RELEVANT REGISTRATIONS IN CHINA BY CCIC-SELECTED EXPERTS IN ORDER TO HELP ENSURE THAT ANIMAL TESTING IS NOT CONDUCTED IN RESPONSE TO THAT COUNTRY'S REGULATORY SYSTEM. CONSUMERS WERE INFORMED THROUGH ACTIVE SOCIAL MEDIA ENGAGEMENT AND A POPULAR MONTHLY ONLINE NEWSLETTER. PROGRAM STAFF ALSO SERVED AS A RESPECTED RESOURCE FOR MEDIA, DELIVERED PRESENTATIONS TO COMPANIES, AND WERE INTERVIEWED ON THE TOPIC OF ANIMAL TESTING FOR GENERAL AUDIENCES.Expenses $472,340 · revenue $143,001
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 23-0341990
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1999
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Animal-related (D012)
- Assets (IRS master file)
- $40,037,437
- Income (IRS master file)
- $8,925,184
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $4,097,874 | $2,775,874 | $40,037,437 | IRS |
| 990 | December 2024 | $3,207,086 | $3,031,590 | $37,546,542 | IRS |
| 990 | December 2023 | $3,365,720 | $2,465,525 | $34,756,487 | XML |
| 990 | December 2022 | $2,012,190 | $2,296,467 | $29,824,124 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 23-0341990).
Questions about AMERICAN ANTI-VIVISECTION SOCIETY
- What is the EIN of AMERICAN ANTI-VIVISECTION SOCIETY?
- The employer identification number (EIN) of AMERICAN ANTI-VIVISECTION SOCIETY is 23-0341990.
- Is AMERICAN ANTI-VIVISECTION SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1999.
- Are donations to AMERICAN ANTI-VIVISECTION SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does AMERICAN ANTI-VIVISECTION SOCIETY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of AMERICAN ANTI-VIVISECTION SOCIETY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did AMERICAN ANTI-VIVISECTION SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of AMERICAN ANTI-VIVISECTION SOCIETY?
- The 990 for the year ended December 31, 2025 names LUKE KLEIN.
- Who are the officers and directors of AMERICAN ANTI-VIVISECTION SOCIETY?
- The 990 for the year ended December 31, 2025 lists 8 people; 2 received compensation from the organization, the highest $105,685 (LUKE KLEIN AFTER 42025, PRESIDENT, CEO).
- How much revenue does AMERICAN ANTI-VIVISECTION SOCIETY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $4,097,874, expenses of $2,775,874 and total assets of $40,037,437 at year end.
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