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WILDLIFE CONSERVATION SOCIETY

EIN 13-1740011 BRONX, NY

Revenue 2023
$389,150,742
Expenses 2023
$448,907,632

Program services were 86.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
D500
Classification
2800
Street
2300 SOUTHERN BOULEVARD ATTENTION P

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Robert G Menzi

    EVP Chief Operating Officer

    Total calculated
    $905,749
    From this org
    $701,351
    From related orgs
    $0
    Other
    $204,398
    Hours/week
    40 + 0.2 related

    Schedule J breakdown matched by us

    Base
    $475,922
    Bonus
    $150,000
    Other
    $75,429
    Deferred
    $164,054
    Nontaxable benefits
    $40,344
    Filer's total
    $905,749

  • Monica P Medina

    President & CEO Until 4/2/2024

    Total calculated
    $851,778
    From this org
    $615,368
    From related orgs
    $0
    Other
    $236,410
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $367,500
    Bonus
    $175,000
    Other
    $72,868
    Deferred
    $233,915
    Nontaxable benefits
    $2,495
    Filer's total
    $851,778

  • Paula Hayes

    EVP chief of Global Resources

    Total calculated
    $814,468
    From this org
    $643,978
    From related orgs
    $0
    Other
    $170,490
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $454,707
    Bonus
    $25,000
    Other
    $164,271
    Deferred
    $129,941
    Nontaxable benefits
    $40,549
    Filer's total
    $814,468

  • John F Calvelli

    EVP Public Affairs

    Total calculated
    $752,228
    From this org
    $606,140
    From related orgs
    $0
    Other
    $146,088
    Hours/week
    40 + 0.1 related

    Schedule J breakdown matched by us

    Base
    $429,945
    Bonus
    $10,000
    Other
    $166,195
    Deferred
    $106,039
    Nontaxable benefits
    $40,049
    Filer's total
    $752,228

  • James J Breheny

    EVP Director of Zoos/Aquarium

    Total calculated
    $630,538
    From this org
    $438,282
    From related orgs
    $0
    Other
    $192,256
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $415,808
    Bonus
    $0
    Other
    $22,474
    Deferred
    $153,187
    Nontaxable benefits
    $39,069
    Filer's total
    $630,538

  • Christopher J McKenzie

    SVP General Counsel

    Total calculated
    $545,337
    From this org
    $417,897
    From related orgs
    $0
    Other
    $127,440
    Hours/week
    40 + 0.5 related

    Schedule J breakdown matched by us

    Base
    $415,575
    Bonus
    $0
    Other
    $2,322
    Deferred
    $96,666
    Nontaxable benefits
    $30,774
    Filer's total
    $545,337

  • Craig Piper

    VP and Director of City Zoos

    Total calculated
    $474,223
    From this org
    $365,361
    From related orgs
    $0
    Other
    $108,862
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $260,151
    Bonus
    $85,000
    Other
    $20,210
    Deferred
    $81,841
    Nontaxable benefits
    $27,021
    Filer's total
    $474,223

  • Joseph Walston

    EVP Global Conservation

    Total calculated
    $473,069
    From this org
    $376,148
    From related orgs
    $0
    Other
    $96,921
    Hours/week
    40 + 0.3 related

    Schedule J breakdown matched by us

    Base
    $374,906
    Bonus
    $0
    Other
    $1,242
    Deferred
    $56,649
    Nontaxable benefits
    $40,272
    Filer's total
    $473,069

  • Laura Stolzenthaler

    SVP & CFO

    Total calculated
    $462,239
    From this org
    $384,723
    From related orgs
    $0
    Other
    $77,516
    Hours/week
    40 + 0.2 related

    Schedule J breakdown matched by us

    Base
    $350,665
    Bonus
    $0
    Other
    $34,058
    Deferred
    $75,165
    Nontaxable benefits
    $2,351
    Filer's total
    $462,239

  • Robert Calamo

    VP & Comptroller Until 1/31/24

    Total calculated
    $433,848
    From this org
    $327,507
    From related orgs
    $0
    Other
    $106,341
    Hours/week
    40 + 0.5 related

    Schedule J breakdown matched by us

    Base
    $320,649
    Bonus
    $0
    Other
    $6,858
    Deferred
    $76,042
    Nontaxable benefits
    $30,299
    Filer's total
    $433,848

  • Jelle Boot

    VP Human Resources

    Total calculated
    $420,518
    From this org
    $314,469
    From related orgs
    $0
    Other
    $106,049
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $312,344
    Bonus
    $0
    Other
    $2,125
    Deferred
    $78,857
    Nontaxable benefits
    $27,192
    Filer's total
    $420,518

  • Daniel Zarin

    E. Director of Forest Programs

    Total calculated
    $405,689
    From this org
    $319,978
    From related orgs
    $0
    Other
    $85,711
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $318,572
    Bonus
    $0
    Other
    $1,406
    Deferred
    $61,677
    Nontaxable benefits
    $24,034
    Filer's total
    $405,689

  • Susan Chin

    SVP of Strategy & Advancement

    Total calculated
    $400,949
    From this org
    $322,423
    From related orgs
    $0
    Other
    $78,526
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $320,101
    Bonus
    $0
    Other
    $2,322
    Deferred
    $62,015
    Nontaxable benefits
    $16,511
    Filer's total
    $400,949

  • Niko Radjenovic

    VP Business Services

    Total calculated
    $399,283
    From this org
    $322,318
    From related orgs
    $0
    Other
    $76,965
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $278,123
    Bonus
    $42,475
    Other
    $1,720
    Deferred
    $38,057
    Nontaxable benefits
    $38,908
    Filer's total
    $399,283

  • Stephen Ham

    VP of Individual Giving

    Total calculated
    $350,132
    From this org
    $286,489
    From related orgs
    $0
    Other
    $63,643
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $286,200
    Bonus
    $0
    Other
    $289
    Deferred
    $25,454
    Nontaxable benefits
    $38,189
    Filer's total
    $350,132

  • Alejandro Santo Domingo

    Chair & Trustee

    Total calculated
    $0
    Hours/week
    4

  • Hamilton E James

    Vice Chair & Trustee

    Total calculated
    $0
    Hours/week
    2

  • Thomas J Edelman

    Treasurer & Trustee

    Total calculated
    $0
    Hours/week
    2

  • Elizabeth Ainslie

    Secretary & Trustee

    Total calculated
    $0
    Hours/week
    2

  • Eric Adams

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

  • Brad Lander

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

  • Adrienne E Adams

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

  • Susan Donoghue

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

  • Laurie Cumbo

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

  • Vanessa L Gibson

    Ex Officio Trustee

    Total calculated
    $0
    Hours/week
    0.5

The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2023
    Revenue
    $389,150,742
    Expenses
    $448,907,632
    Contributions
    $285,383,401
    Grants paid
    $24,406,309
  • 2022
    Revenue
    $345,503,315
    Expenses
    $373,628,213
    Contributions
    $208,221,176
    Grants paid
    $20,817,549

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

Nonprofiteer parses the Form 990 only. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2023 return

  • wCs Wildlife Conserv Soc Canada

    Conservation · CA · controlled entity

  • WCS-ASSOCIACAO CONSERVACAO DA VIDA SILVE

    Conservation · BR · controlled entity

  • WCS Global Conservation UK

    Conservation · UK · controlled entity

  • Professional Housing Corporation

    501(C)(2) · REAL ESTATE · DE · controlled entity

  • AUTONOMOUS NON-COMMERCIAL ORGANIZATION

    CONSERVATION · RS · controlled entity

  • SANSOM MLUP PREY

    CONSERVATION · CB · controlled entity

  • YAYASAN CELEBICA

    CONSERVATION · ID · controlled entity

  • WCS EU

    CONSERVATION · BE · controlled entity

  • Henry L Heymann Wildlife Preservation F

    501(C)(3) · Conservation · DE · controlled entity

Declared as related by

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.