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SOCIETY OF ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY OF NORTH AMERICA INC

EIN 37-1482800 WASHINGTON, DC

Revenue 2025
$1,646,730
Expenses 2025
$1,817,762

Program services were 92.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
U03
Classification
2000
Street
712 H STREET NE 1889

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 · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • TAMAR SCHLEKAT

    ED/ GLOBAL S

    Total calculated
    $196,694
    From this org
    $176,936
    From related orgs
    $0
    Other
    $19,758
    Hours/week
    20 + 20 related

    Schedule J breakdown matched by us

    Base
    $176,936
    Bonus
    not reported
    Other
    not reported
    Deferred
    $11,100
    Nontaxable benefits
    $8,658
    Filer's total
    $196,694

  • NILE KEMBLE

    PAST PRESIDE

    Total calculated
    $0
    Hours/week
    4

  • MARK JOHNSON

    PRESIDENT

    Total calculated
    $0
    Hours/week
    3

  • CHRIS STRANSKY

    VICE PRESIDE

    Total calculated
    $0
    Hours/week
    3

  • TERESA NORBERG-KING

    TREASURER

    Total calculated
    $0
    Hours/week
    3

  • ALAN JONES

    AT LARGE-EXC

    Total calculated
    $0
    Hours/week
    3

  • KATY CHUNG

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • KATIE COADY

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • BONNIE ERTEL

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • MICHELE HARMON

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • SCOTT LYNN

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • MARK MCMASTER

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • CARLA NG

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • RYAN OTTER

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • PATRICIA RAMIERZ ROMERO

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • SHAWN SAGER

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • RUTH SOFIELD

    MEMBER

    Total calculated
    $0
    Hours/week
    1

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, and on a Form 990-PF Part VIII's — 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

  • 2025
    Revenue
    $1,646,730
    Expenses
    $1,817,762
    Contributions
    $707,443
    Grants paid
    $0
  • 2024
    Revenue
    $2,008,414
    Expenses
    $2,086,909
    Contributions
    $861,405
    Grants paid
    $0
  • 2023
    Revenue
    $2,283,925
    Expenses
    $2,057,588
    Contributions
    $951,394
    Grants paid
    $0
  • 2022
    Revenue
    $2,020,267
    Expenses
    $1,958,298
    Contributions
    $700,625
    Grants paid
    $0

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

  • 2021 · 990

    Revenue
    $1,483,548
    Expenses
    $1,041,309
    Assets (EOY)
    $2,035,820

  • 2020 · 990

    Revenue
    $1,557,644
    Expenses
    $1,335,898
    Assets (EOY)
    $1,644,518

  • 2019 · 990

    Revenue
    $2,202,520
    Expenses
    $2,035,872
    Assets (EOY)
    $1,375,880

  • 2018 · 990

    Revenue
    $1,968,274
    Expenses
    $1,883,479
    Assets (EOY)
    $1,106,934

  • 2017 · 990

    Revenue
    $1,872,093
    Expenses
    $1,842,966
    Assets (EOY)
    $1,216,490

  • 2016 · 990

    Revenue
    $1,878,133
    Expenses
    $1,966,012
    Assets (EOY)
    $1,049,933

  • 2015 · 990

    Revenue
    $1,713,969
    Expenses
    $1,669,355
    Assets (EOY)
    $1,062,344

  • 2014 · 990

    Revenue
    $2,047,692
    Expenses
    $1,845,871
    Assets (EOY)
    $1,070,369

  • 2013 · 990

    Revenue
    $1,300,070
    Expenses
    $1,363,849
    Assets (EOY)
    $1,106,907

  • 2012 · 990

    Revenue
    not reported
    Expenses
    $1,374,072
    Assets (EOY)
    $853,363

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. 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. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

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 2025 return

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 13 October 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.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 23 October 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.