What is the EIN of WILDLIFE CONSERVATION SOCIETY?

The employer identification number (EIN) of WILDLIFE CONSERVATION SOCIETY is 13-1740011.

Is WILDLIFE CONSERVATION SOCIETY tax-exempt?

Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1939.

Are donations to WILDLIFE CONSERVATION SOCIETY tax-deductible?

Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).

When is the next return of WILDLIFE CONSERVATION SOCIETY due?

The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.

When did WILDLIFE CONSERVATION SOCIETY last file with the IRS?

The latest return in the IRS public files is the 990 for the year ended June 2025.

Who is the principal officer of WILDLIFE CONSERVATION SOCIETY?

The 990 for the year ended June 30, 2025 names ADAM FALK PRESIDENT CEO.

Who are the officers and directors of WILDLIFE CONSERVATION SOCIETY?

The 990 for the year ended June 30, 2025 lists 54 people; 16 received compensation from the organization, the highest $1,496,001 (Monica P Medina, President & CEO through 4/1/24).

How much revenue does WILDLIFE CONSERVATION SOCIETY have?

On its 990 for the year ended June 30, 2025 it reported revenue of $400,861,377, expenses of $456,032,967 and total assets of $1,249,431,919 at year end.

Nonprofit · EIN 13-1740011

WILDLIFE CONSERVATION SOCIETY

Tax-exempt · BRONX, NY 10460

Financials

Revenue Expenses · by fiscal year end

Financials of WILDLIFE CONSERVATION SOCIETY by year, from its e-filed returns
Year ended	Form	Revenue	Expenses	Net income	Total assets	Liabilities	Net assets
June 30, 2025	990	$400,861,377	$456,032,967	-$55,171,590	$1,249,431,919	$380,024,496	$869,407,423
June 30, 2024	990	$389,150,742	$448,907,632	-$59,756,890	$1,254,629,446	$367,231,547	$887,397,899
June 30, 2023	990	$345,503,315	$373,628,213	-$28,124,898	$1,249,623,944	$340,702,460	$908,921,484

Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants: $294,494,628
of which government grants: $103,846,773
Membership dues: $8,117,093
Program service revenue: $58,938,352
Investment income: $11,709,802
Royalties: $6,775
Net gain from sales of assets: $3,909,685
Net income from fundraising events: $848,523
Net income from sales of inventory: $27,306,376
Other revenue: $35,718,595

Expenses

Grants and similar amounts paid: $24,128,708
Compensation of officers, directors and key employees: $5,614,482
Other salaries and wages: $197,225,175
Salaries, compensation and benefits (total): $233,281,764
Professional fundraising fees: $1,631,579
Legal fees: $1,350,362
Accounting fees: $1,003,938
Occupancy: $13,641,013
Travel: $22,629,817
Depreciation: $38,192,811
Program services (functional): $402,598,503
Management and general (functional): $38,831,303
Fundraising (functional): $14,603,161

Balance sheet and other

Total assets, start of year: $1,254,629,446
Total assets, end of year: $1,249,431,919
Total liabilities, end of year: $380,024,496
Net assets, end of year: $869,407,423
Land, buildings and equipment: $414,584,609
Publicly traded securities: $90,254,716
Net assets without donor restrictions: $391,970,176
Net assets with donor restrictions: $477,437,247
Gross unrelated business income: $3,449,207
Gross receipts: $917,382,217
Employees: 2,917
Volunteers: 729
Year formed: 1895
State of legal domicile: NY

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 June 30, 2025, highest compensation first.

Name	Title	Hours / week	Compensation	Other / benefits
Monica P Medina	President & CEO through 4/1/24 Former	40	$1,496,001	$2,254
Robert G Menzi	EVP Chief Operating Officer Officer	40	$820,740	$283,650
James J Breheny	EVP Director of Zoos/Aquarium Officer	40	$536,541	$173,400
John F Calvelli	EVP Public Affairs Officer	40	$469,088	$115,866
Christopher J McKenzie	SVP General Counsel Officer	40	$434,752	$114,699
Paula Hayes	EVP Chief of GR through2/28/25 Officer	40	$453,198	$94,141
Joseph Walston	EVP Global Conservation Officer	40	$416,403	$114,071
Craig Piper	VP and Director of City Zoos Highest-paid employee	40	$342,278	$112,626
Daniel Zarin	E. Director of Forest Programs Highest-paid employee	40	$328,913	$119,980
Jelle Boot	VP Human Resources Highest-paid employee	40	$327,123	$113,419
Laura Stolzenthaler	SVP & CFO Officer	40	$367,014	$66,862
Susan Chin	SVP of Strategy & Advancement Highest-paid employee	40	$338,036	$91,093
Mary Dixon	SVP for Communications Highest-paid employee	40	$302,090	$92,146
Niko Radjenovic	VP Business Services Officer	40	$338,466	$52,974
Patrick Mouton	VP & Comptroller From 3/04/24 Officer	40	$231,306	$8,231

39 more people on this return

Name	Title	Hours / week	Compensation	Other / benefits
Robert Calamo	VP&Comptroller through 1/31/24 Former	40	$181,425	$42,231
Alejandro Santo Domingo	Chair & Trustee Trustee or director, Officer	4	$0	$0
Elizabeth M Ainslie	Vice Chair & Trustee Trustee or director, Officer	2	$0	$0
Thomas J Edelman	Treasurer & Trustee Trustee or director, Officer	2	$0	$0
Loretta M Stadler	Secretary & Trustee Trustee or director, Officer	2	$0	$0
Eric Adams	Ex Officio Trustee Trustee or director	0.5	$0	$0
Brad Lander	Ex Officio Trustee Trustee or director	0.5	$0	$0
Adrienne E Adams	Ex Officio Trustee Trustee or director	0.5	$0	$0
Susan Donoghue	Ex Officio Trustee Trustee or director	0.5	$0	$0
Laurie Cumbo	Ex Officio Trustee Trustee or director	0.5	$0	$0
Vanessa L Gibson	Ex Officio Trustee Trustee or director	0.5	$0	$0
Antonio Reynoso	Ex Officio Trustee Trustee or director	0.5	$0	$0
Neil Barr	Trustee Trustee or director	2	$0	$0
Hamilton E James	Trustee Until 11/08/2024 Trustee or director	1	$0	$0
Rosina M Bierbaum	Trustee Trustee or director	2	$0	$0
Duncan A Chapman	Trustee Trustee or director	1	$0	$0
Katherine L Dolan	Trustee Trustee or director	2	$0	$0
Christopher J Elliman	Vice Chair & Trustee Trustee or director, Officer	2	$0	$0
Paul A Gould	Trustee Trustee or director	1	$0	$0
Peter T Grauer	Trustee Trustee or director	2	$0	$0
Jonathan D Green	Trustee Trustee or director	1	$0	$0
Antonia M Grumbach	Trustee Trustee or director	1	$0	$0
O Andreas Halvorsen	Trustee Trustee or director	2	$0	$0
Judith H Hamilton	Trustee Trustee or director	2	$0	$0
Jan Hatzius	Trustee Trustee or director	1	$0	$0
John N Irwin III	Trustee Trustee or director	1	$0	$0
Trevor Kempner	Trustee Trustee or director	1	$0	$0
Julia Marton-Lefvre	Trustee Until 11/08/2024 Trustee or director	1	$0	$0
Ambrose K Monell	Trustee Trustee or director	1	$0	$0
Adebayo O Ogunlesi	Trustee Trustee or director	1	$0	$0
Juan Manuel Santos	Trustee Trustee or director	1	$0	$0
David B Schiff	Trustee Trustee or director	1	$0	$0
Walter C Sedgwick	Trustee Trustee or director	1	$0	$0
Katherine Sherrill	Trustee Trustee or director	1	$0	$0
Caroline N Sidnam	Trustee Trustee or director	1	$0	$0
Andrew H Tisch	Trustee Trustee or director	2	$0	$0
Marcel van Poecke	Trustee Trustee or director	1	$0	$0
Akiko Yamazaki	Trustee Trustee or director	1	$0	$0
Robert B Zoellick	Trustee Trustee or director	1	$0	$0

990 for the year ended June 30, 2024: 56 people

Name	Title	Hours / week	Compensation	Other / benefits
Robert G Menzi	EVP Chief Operating Officer Officer	40	$701,351	$204,398
Monica P Medina	President & CEO Until 4/2/2024 Trustee or director, Officer	40	$615,368	$236,410
Paula Hayes	EVP chief of Global Resources Officer	40	$643,978	$170,490
John F Calvelli	EVP Public Affairs Officer	40	$606,140	$146,088
James J Breheny	EVP Director of Zoos/Aquarium Officer	40	$438,282	$192,256
Christopher J McKenzie	SVP General Counsel Officer	40	$417,897	$127,440
Craig Piper	VP and Director of City Zoos Highest-paid employee	40	$365,361	$108,862
Joseph Walston	EVP Global Conservation Officer	40	$376,148	$96,921
Laura Stolzenthaler	SVP & CFO Officer	40	$384,723	$77,516
Robert Calamo	VP & Comptroller Until 1/31/24 Officer	40	$327,507	$106,341
Jelle Boot	VP Human Resources Highest-paid employee	40	$314,469	$106,049
Daniel Zarin	E. Director of Forest Programs Highest-paid employee	40	$319,978	$85,711
Susan Chin	SVP of Strategy & Advancement Highest-paid employee	40	$322,423	$78,526
Niko Radjenovic	VP Business Services Officer	40	$322,318	$76,965
Stephen Ham	VP of Individual Giving Highest-paid employee	40	$286,489	$63,643
Alejandro Santo Domingo	Chair & Trustee Trustee or director, Officer	4	$0	$0
Hamilton E James	Vice Chair & Trustee Trustee or director, Officer	2	$0	$0
Thomas J Edelman	Treasurer & Trustee Trustee or director, Officer	2	$0	$0
Elizabeth Ainslie	Secretary & Trustee Trustee or director, Officer	2	$0	$0
Eric Adams	Ex Officio Trustee Trustee or director	0.5	$0	$0
Brad Lander	Ex Officio Trustee Trustee or director	0.5	$0	$0
Adrienne E Adams	Ex Officio Trustee Trustee or director	0.5	$0	$0
Susan Donoghue	Ex Officio Trustee Trustee or director	0.5	$0	$0
Laurie Cumbo	Ex Officio Trustee Trustee or director	0.5	$0	$0
Vanessa L Gibson	Ex Officio Trustee Trustee or director	0.5	$0	$0
Antonio Reynoso	Ex Officio Trustee Trustee or director	0.5	$0	$0
Neil Barr	Trustee From 10/24/2023 Trustee or director	1	$0	$0
Frederick W Beinecke	Trustee Until 10/24/2023 Trustee or director	1	$0	$0
Rosina M Bierbaum	Trustee Trustee or director	2	$0	$0
Duncan A Chapman	Trustee Trustee or director	1	$0	$0
Katherine L Dolan	Trustee Trustee or director	2	$0	$0
Christopher J Elliman	Trustee Trustee or director	2	$0	$0
Paul A Gould	Trustee Trustee or director	1	$0	$0
Peter T Grauer	Trustee Trustee or director	1	$0	$0
Jonathan D Green	Trustee Trustee or director	1	$0	$0
Antonia M Grumbach	Trustee Trustee or director	2	$0	$0
O Andreas Halvorsen	Trustee Trustee or director	2	$0	$0
Judith H Hamilton	Trustee Trustee or director	2	$0	$0
Jan Hatzius	Trustee Trustee or director	1	$0	$0
John N Irwin III	Trustee Trustee or director	1	$0	$0
Trevor Kempner	Trustee From 10/24/2023 Trustee or director	1	$0	$0
Julia Marton-Lefvre	Trustee Trustee or director	1	$0	$0
Ambrose K Monell	Trustee Trustee or director	1	$0	$0
Adebayo O Ogunlesi	Trustee Trustee or director	1	$0	$0
Juan Manuel Santos	Trustee Trustee or director	2	$0	$0
David B Schiff	Trustee Trustee or director	1	$0	$0
Walter C Sedgwick	Trustee Trustee or director	1	$0	$0
Katherine Sherrill	Trustee Trustee or director	1	$0	$0
Caroline N Sidnam	Trustee Trustee or director	1	$0	$0
Loretta M Stadler	Trustee Trustee or director	2	$0	$0
Andrew H Tisch	Trustee Trustee or director	2	$0	$0
Roselinde Torres	Trustee Until 02/28/2024 Trustee or director	1	$0	$0
Marcel van Poecke	Trustee Trustee or director	1	$0	$0
Akiko Yamazaki	Trustee Trustee or director	1	$0	$0
Robert B Zoellick	Trustee Trustee or director	1	$0	$0
Patrick Mouton	VP & Comptroller From 3/04/24 Officer	40	$0	$0

990 for the year ended June 30, 2023: 57 people

Name	Title	Hours / week	Compensation	Other / benefits
dr CRISTIAN SAMPER	PRESIDENT & CEO Until 10/7/22 Trustee or director, Officer	40	$1,371,243	$102,407
JAMES J BREHENY	EVP Director of Zoos/Aquarium Officer	40	$589,866	$166,561
CHRISTOPHER J MCKENZIE	SVP General Counsel Officer	40	$593,400	$139,160
ROBERT MENZI	evp CHIEF OPERATING OFFICER Officer	40	$537,131	$139,337
Paula Hayes	EVP chief of Global Resources Officer	40	$415,162	$156,074
JOHN F CALVELLI	EVP Public Affairs Officer	40	$431,600	$136,598
Joseph Walston	EVP Field Conservation Officer	40	$354,732	$93,442
Craig Piper	VP and Director of City Zoos Highest-paid employee	40	$323,556	$120,830
LAURA STOLZENTHALER	SVP & CFO Officer	40	$339,441	$79,326
ROBERT CALAMO	VP & Comptroller Officer	40	$315,447	$101,810
Jelle Boot	VP Human Resources Highest-paid employee	40	$302,196	$111,521
Daniel Zarin	E.Dir Forests & Climate Change Highest-paid employee	40	$307,546	$90,859
Mary Dixon	SVP Communications Highest-paid employee	40	$294,105	$92,808
Niko Radjenovic	VP Business Services Officer	40	$306,919	$79,452
Stephen Ham	VP of Individual Giving Highest-paid employee	40	$274,697	$66,371
ALEJANDRO SANTO DOMINGO	Chair & Trustee Trustee or director, Officer	4	$0	$0
Hamilton E James	Vice Chair & Trustee Trustee or director, Officer	2	$0	$0
Thomas J Edelman	Treasurer & Trustee Trustee or director, Officer	2	$0	$0
Elizabeth Ainslie	SECRETARY Trustee or director, Officer	2	$0	$0
Eric Adams	Ex Officio trustee Trustee or director	0.5	$0	$0
Brad Lander	Ex Officio Trustee Trustee or director	0.5	$0	$0
Adrienne E Adams	Ex Officio Trustee Trustee or director	0.5	$0	$0
Susan Donoghue	Ex Officio Trustee Trustee or director	0.5	$0	$0
Vanessa L Gibson	Ex Officio Trustee Trustee or director	0.5	$0	$0
Antonio Reynoso	Ex Officio Trustee Trustee or director	0.5	$0	$0
Laurie Cumbo	Ex Officio Trustee Trustee or director	0.5	$0	$0
Gordon E Dyal	TRUSTEE UNTIL 10/25/2022 Trustee or director	1	$0	$0
ANDREW H TISCH	Trustee Trustee or director	2	$0	$0
david b schiff	Trustee Trustee or director	1	$0	$0
Duncan A Chapman	Trustee Trustee or director	1	$0	$0
KATHERINE L DOLAN	Trustee Trustee or director	2	$0	$0
CHRISTOPHER J ELLIMAN	Trustee Trustee or director	2	$0	$0
Rudolph F Crew	Trustee UNTIL 10/25/2022 Trustee or director	1	$0	$0
O ANDREAS HALVORSEN	Trustee Trustee or director	1	$0	$0
PAUL A GOULD	Trustee Trustee or director	1	$0	$0
PETER T GRAUER	Trustee Trustee or director	1	$0	$0
JUDITH H HAMILTON	Trustee Trustee or director	1	$0	$0
JOHN N IRWIN III	Trustee Trustee or director	1	$0	$0
ROSINA M BIERBAUM	Trustee Trustee or director	2	$0	$0
AMBROSE K MONELL	Trustee Trustee or director	1	$0	$0
ADEBAYO O OGUNLESI	Trustee Trustee or director	1	$0	$0
David J Millstone	Trustee UNTIL 10/25/2022 Trustee or director	1	$0	$0
WALTER C SEDGWICK	Trustee Trustee or director	1	$0	$0
CAROLINE N SIDNAM	Trustee Trustee or director	1	$0	$0
ROSELINDE TORRES	Trustee Trustee or director	2	$0	$0
JULIA MARTON-LEFEVRE	Trustee Trustee or director	1	$0	$0
Frederick W Beinecke	TRUSTEE Trustee or director	1	$0	$0
ANTONIA M GRUMBACH	Trustee Trustee or director	2	$0	$0
JONATHAN D GREEN	TRUSTEE Trustee or director	1	$0	$0
katherine sherrill	trustee Trustee or director	1	$0	$0
Juan Manuel Santos	Trustee Trustee or director	2	$0	$0
ROBERT B ZOELLICK	TRUSTEE Trustee or director	1	$0	$0
Jan Hatzius	TRUSTEE Trustee or director	1	$0	$0
Loretta M Stadler	TRUSTEE Trustee or director	1	$0	$0
Marcel van Poecke	TRUSTEE Trustee or director	1	$0	$0
Akiko Yamazaki	TRUSTEE Trustee or director	1	$0	$0
Monica P Medina	PRESIDENT & CEO From 6/01/2023 Trustee or director, Officer	40	$0	$0

Address and contacts

Address (IRS master file): 2300 SOUTHERN BOULEVARD ATTENTION P, BRONX, NY 10460-1068
In care of: % LAURA STOLZENTHALER
Principal officer (990 for 2024): ADAM FALK PRESIDENT CEO, 2300 Southern Blvd, Bronx, NY 10460
Signed the 990: Laura Stolzenthaler, SVP & CFO
Phone: (718) 220-5100
Website: WWW.WCS.ORG
Return prepared by: KPMG LLP

Mission

THE WILDLIFE CONSERVATION SOCIETY (WCS) SAVES WILDLIFE AND WILD PLACES WORLDWIDE THROUGH SCIENCE, CONSERVATION ACTION, EDUCATION, AND INSPIRING PEOPLE TO VALUE NATURE.
990 for the year ended June 30, 2025

Program accomplishments

Global Conservation
Expenses $206,913,352 · grants $24,128,708
Zoos and Aquarium in New York City
Expenses $195,685,151 · revenue $58,938,352

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 June, so each return is due on the 15th day of the 5th month after that.

Tax year	Year ended	Due	IRS public records
2025	June 30, 2026	November 16, 2026	Not due yet
2024	June 30, 2025	November 17, 2025	990 on file
2023	June 30, 2024	November 15, 2024	990 on file

IRS record

EIN: 13-1740011
Tax-exempt status: 501(c)(3): Charitable, religious, educational or scientific organization
Foundation status: Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78): Public charity, 50% deduction limit
Exempt since: 1939
Accounting year ends: June
Files: Form 990 or 990-EZ
Category (NTEE): Animal-related (D500)
Assets (IRS master file): $1,249,431,919
Income (IRS master file): $917,382,217

Filing history

Form	Year ended	Revenue	Expenses	Assets	Return
990	June 2025	$400,861,377	$456,032,967	$1,249,431,919	IRS
990-T	June 2025	–	–	–	IRS
990	June 2024	$389,150,742	$448,907,632	$1,254,629,446	IRS
990-T	June 2024	–	–	–	IRS
990	June 2023	$345,503,315	$373,628,213	$1,249,623,944	XML
990-T	June 2023	–	–	–	IRS
990	June 2022	$393,224,094	$337,028,286	$1,271,369,998	IRS
990-T	June 2022	–	–	–	IRS
990	June 2021	–	–	–	IRS
990-T	June 2021	–	–	–	IRS
990	June 2020	–	–	–	IRS
990	June 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 13-1740011).

Questions about WILDLIFE CONSERVATION SOCIETY

What is the EIN of WILDLIFE CONSERVATION SOCIETY?: The employer identification number (EIN) of WILDLIFE CONSERVATION SOCIETY is 13-1740011.
Is WILDLIFE CONSERVATION SOCIETY tax-exempt?: Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1939.
Are donations to WILDLIFE CONSERVATION SOCIETY tax-deductible?: Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does WILDLIFE CONSERVATION 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 WILDLIFE CONSERVATION SOCIETY due?: The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did WILDLIFE CONSERVATION SOCIETY last file with the IRS?: The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of WILDLIFE CONSERVATION SOCIETY?: The 990 for the year ended June 30, 2025 names ADAM FALK PRESIDENT CEO.
Who are the officers and directors of WILDLIFE CONSERVATION SOCIETY?: The 990 for the year ended June 30, 2025 lists 54 people; 16 received compensation from the organization, the highest $1,496,001 (Monica P Medina, President & CEO through 4/1/24).
How much revenue does WILDLIFE CONSERVATION SOCIETY have?: On its 990 for the year ended June 30, 2025 it reported revenue of $400,861,377, expenses of $456,032,967 and total assets of $1,249,431,919 at year end.

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