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WISCONSIN SOCIETY OF SCIENCE TEACHERS

EIN 23-7086868 GREEN BAY, WI

Largest nonprofits in Wisconsin

Revenue 2024
$122,464
Expenses 2024
$129,889

Program services were 60.7% of total expenses calculated — Part III's total program service expenses over total expenses, both as filed.

As filed

Subsection
03
NTEE code
U20C
Classification
1000
Street
2019 TECHNOLOGY DR STE 145

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).

Other organizations at this address

1 other organization in the IRS Business Master File lists the same street address. matched by us

This address is a suite or unit (STE 145). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2024

Primary exempt purpose

Improving Science Instruction in Wisconsin by working with Science Instructors Kindergarten through College

  • Spring Conference March, 2025 - WSST conference was held in Oshkosh WI. Attendance was about 500 individuals. including 63 exhibitor booths

    Expenses $51,196

  • One printed Newsletters of 18-24 pages and four electronic Newsletters, were sent to over 800 science teachers. A website is maintained for the membership and other science educators. A monthly E-Newsletter of updated science information is sent monthly to members.

    Expenses $4,533

  • We continue to support several grant programs for members. Funds may be used for classroom materials, travel to professional conferences, professional development activities, an essay contest for students, and a new, self-funded Professional Development program for teachers called WINGS (Wisconsin Institute for Next Generation Science). These are all competitive opportunities for members of WSST.

    Expenses $7,152 · Grants $32,040

  • Operating expenses such as travel reimbursements for officers and committee chairs to attend Board meeting held throughout the year, cost of maintaining membership database and website (Wild Apricot), etc. in order to maintain vitality of organization and meet its member's needs. Total current membership is around 550.

    Expenses $16,000

As filed on the 2024 return.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Dennis Rohr

    President

    Total calculated
    $500
    Compensation
    $0
    Benefit plans
    $0
    Expense account
    $500
    Hours/week
    2
  • Kristin Michalski

    Retiring President

    Total calculated
    $0
    Hours/week
    1
  • Stephaine Baker

    Secretary

    Total calculated
    $100
    Compensation
    $0
    Benefit plans
    $0
    Expense account
    $100
    Hours/week
    3
  • Tammy Dymesich

    Chief Operations Officer

    Total calculated
    $5,500
    Compensation
    $5,000
    Benefit plans
    $0
    Expense account
    $500
    Hours/week
    5
  • Kevin Niemi

    Chief Financial Officer

    Total calculated
    $5,500
    Compensation
    $5,000
    Benefit plans
    $0
    Expense account
    $500
    Hours/week
    5
  • Ray Scolavino

    Conference coordinator

    Total calculated
    $750
    Compensation
    $500
    Benefit plans
    $0
    Expense account
    $250
    Hours/week
    2
  • Andrea Pokrzwinski

    Director

    Total calculated
    $0
    Hours/week
    1
  • Tom Davies

    Director

    Total calculated
    $0
    Hours/week
    1
  • Stacey Strandberg

    Director

    Total calculated
    $0
    Hours/week
    2
  • Megan Sprague

    Director

    Total calculated
    $0
    Hours/week
    1
  • Patrick Mootz

    Director

    Total calculated
    $0
    Hours/week
    1
  • Jonathan Baker

    Director

    Total calculated
    $0
    Hours/week
    1
  • Teri Dillenberg

    Director

    Total calculated
    $0
    Hours/week
    1
  • Brian Bartel

    Publications editor

    Total calculated
    $500
    Compensation
    $500
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    3
  • Karyl Rosenberg

    Historian

    Total calculated
    $300
    Compensation
    $300
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    2
  • Julie Fitzpatrick

    webmaster

    Total calculated
    $500
    Compensation
    $500
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    3
  • Rod Dymesich

    Vendor Relations coordinator

    Total calculated
    $1,250
    Compensation
    $1,250
    Benefit plans
    $0
    Expense account
    $0
    Hours/week
    2

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. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $122,464
    Expenses
    $129,889
    Contributions
    $3,000
    Grants paid
    $37,040
  • 2023
    Revenue
    $59,859
    Expenses
    $57,679
    Contributions
    $0
    Grants paid
    $25,141
  • 2022
    Revenue
    $117,916
    Expenses
    $165,055
    Contributions
    $47,050
    Grants paid
    $17,350

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-EZ

    Revenue
    $65,615
    Expenses
    $131,374
    Assets (EOY)
    $392,211
  • 2020 · 990-EZ

    Revenue
    $74,771
    Expenses
    $67,896
    Assets (EOY)
    $491,364
  • 2019 · 990-EZ

    Revenue
    $34,127
    Expenses
    $67,521
    Assets (EOY)
    $481,351
  • 2018 · 990-EZ

    Revenue
    $83,785
    Expenses
    $83,785
    Assets (EOY)
    $480,787
  • 2017 · 990-EZ

    Revenue
    $55,599
    Expenses
    $70,460
    Assets (EOY)
    $454,938
  • 2016 · 990-EZ

    Revenue
    $100,057
    Expenses
    $83,373
    Assets (EOY)
    $469,799
  • 2015 · 990-EZ

    Revenue
    $73,424
    Expenses
    $62,914
    Assets (EOY)
    $453,115
  • 2014 · 990-EZ

    Revenue
    $90,109
    Expenses
    $78,302
    Assets (EOY)
    $442,605
  • 2013 · 990-EZ

    Revenue
    $91,008
    Expenses
    $94,971
    Assets (EOY)
    $430,798
  • 2012 · 990-EZ

    Revenue
    $66,622
    Expenses
    $81,383
    Assets (EOY)
    $415,661

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

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

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 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.