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TETON SCIENCE SCHOOLS

EIN 83-0219163 JACKSON, WY

Largest nonprofits in Wyoming

Revenue 2024
$19,627,894
Expenses 2024
$18,490,185

Program services were 76.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C60Z
Classification
2000
Street
700 COYOTE CANYON RD

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).

Mission and programs · 2024

Mission

DELIVERING PLACE-BASED EDUCATION PROGRAMMING TO STUDENTS OF ALL AGES THROUGH FIELD EDUCATION, TEACHER PROFESSIONAL DEVELOPMENT, VISITOR ENGAGEMENT, AND PRE K THROUGH 8TH GRADE EDUCATION. TETON SCIENCE SCHOOLS MISSION IS TO CONNECT PEOPLE, PLACE, AND NATURE THROUGH EDUCATION.

  • Mountain Academy: Mountain Academy is an independent day school with campuses in Jackson, WY, and Teton Valley, ID. The school serves 183 students pre-K through grade 8 with an innovative curriculum that integrates academic excellence, creativity, and critical thinking with outdoor experiences and service learning. Mountain Academy students complete the program prepared for high school and equipped with the skills to engage and participate in their communities and beyond. During the summer months, Mountain Academy served 357 youth in educational summer camp programs.

    Expenses $7,467,815 · Grants $793,815 · Revenue $3,664,749

  • Field Education: Last year, 5,222 youth from Wyoming, the Rocky Mountain West, and across the country came to TSS to experience hands-on science and outdoor learning. In these multi-day programs, students explored wildlife ecology, geology, and land stewardship while developing resilience, teamwork, and leadership. These experiences create lasting connections to nature and empower young people to see themselves as capable learners and conservation stewards.

    Expenses $3,923,390 · Grants $327,953 · Revenue $3,512,267

  • Wildlife Expeditions: TSSs Wildlife Expeditions is a premier wildlife tour program in Grand Teton and Yellowstone National Parks. These tours, guided by expert naturalists, introduced 5,225 visitors from around the globe to the regions wildlife, landscapes, and conservation stories. Wildlife Expeditions also generates critical earned income that supports TSS programs and helps sustain our nonprofit mission.

    Expenses $1,822,144 · Grants $55,830 · Revenue $1,746,077

  • Professional Learning: APPROXIMATELY 600 CURRENT STUDENTS, AND ASPIRING EDUCATORS, AS WELL AS 9 SCHOOLS, PARTICIPATED IN PROFESSIONAL LEARNING THROUGH A RANGE OF PROFESSIONAL DEVELOPMENT OPPORTUNITIES COMBINING EDUCATIONAL THEORY, PRACTICAL APPLICATIONS, INNOVATIVE LEADERSHIP STRATEGIES AND MENTORSHIP.TSS advances the practice of place-based education nationwide and internationally by training teachers, school leaders, and community educators. Through workshops, online resources, and long-term partnerships, TSS provided 1,309 educators with the tools to transform their teaching and strengthen community connections. This work scales the TSS mission far beyond our own classrooms, equipping educators across the United States and abroad to engage students through the places they live.

    Expenses $878,821 · Grants $94,663 · Revenue $947,737

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

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.

  • Michael Witherite

    CFO

    Total calculated
    $275,230
    From this org
    $229,235
    From related orgs
    $0
    Other
    $45,995
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $229,235
    Bonus
    not reported
    Other
    not reported
    Deferred
    $11,332
    Nontaxable benefits
    $34,663
    Filer's total
    $275,230
  • Nicola James

    CPO

    Total calculated
    $203,853
    From this org
    $181,472
    From related orgs
    $0
    Other
    $22,381
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $181,472
    Bonus
    not reported
    Other
    not reported
    Deferred
    $10,384
    Nontaxable benefits
    $11,997
    Filer's total
    $203,853
  • Shawn Kelley

    FORMER CEO

    Total calculated
    $180,540
    From this org
    $174,050
    From related orgs
    $0
    Other
    $6,490
    Hours/week
    0

    Schedule J breakdown matched by us

    Base
    $94,050
    Bonus
    not reported
    Other
    $80,000
    Deferred
    $351
    Nontaxable benefits
    $6,139
    Filer's total
    $180,540
  • Joshua Kleyman

    Director of CE

    Total calculated
    $169,360
    From this org
    $128,355
    From related orgs
    $0
    Other
    $41,005
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $128,355
    Bonus
    not reported
    Other
    not reported
    Deferred
    $7,064
    Nontaxable benefits
    $33,941
    Filer's total
    $169,360
  • Athalia Poutiatine

    HEAD OF SCHOOL

    Total calculated
    $149,401
    From this org
    $112,103
    From related orgs
    $0
    Other
    $37,298
    Hours/week
    40
  • Leslie Cook

    Director of TLC

    Total calculated
    $120,513
    From this org
    $102,019
    From related orgs
    $0
    Other
    $18,494
    Hours/week
    40
  • Samuel Dragoo

    PSD

    Total calculated
    $113,268
    From this org
    $109,994
    From related orgs
    $0
    Other
    $3,274
    Hours/week
    40
  • George Angelo

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Mary Ashworth

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Rich Bloom

    BOARD TREASURER

    Total calculated
    $0
    Hours/week
    10
  • Andrew Chung

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Leah Corrigan

    BOARD CO-CHAIR

    Total calculated
    $0
    Hours/week
    10
  • Ashley Finan

    Secretary

    Total calculated
    $0
    Hours/week
    2
  • Krystina Kaly

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Fred Keller

    MEMBER

    Total calculated
    $0
    Hours/week
    3
  • M Margaret McKeown

    MEMBER

    Total calculated
    $0
    Hours/week
    2
  • Jack Nunn

    MEMBER

    Total calculated
    $0
    Hours/week
    3
  • Keith Peters

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Heather Park Reed

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • DOUG WACHOB PhD

    BOARD CO-CHAIR

    Total calculated
    $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. 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

  • 2024
    Revenue
    $19,627,894
    Expenses
    $18,490,185
    Contributions
    $7,807,421
    Grants paid
    $1,272,261
  • 2023
    Revenue
    $16,987,641
    Expenses
    $17,111,579
    Contributions
    $4,428,398
    Grants paid
    $1,577,284
  • 2022
    Revenue
    $16,184,734
    Expenses
    $17,872,749
    Contributions
    $5,003,058
    Grants paid
    $1,900,228
  • 2022
    Revenue
    $17,602,151
    Expenses
    $17,901,351
    Contributions
    $5,003,058
    Grants paid
    $1,900,228

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
    $15,385,429
    Expenses
    $15,970,625
    Assets (EOY)
    $52,431,834
  • 2021 · 990

    Revenue
    $15,385,429
    Expenses
    $15,970,625
    Assets (EOY)
    $52,431,834
  • 2020 · 990

    Revenue
    $14,743,216
    Expenses
    $13,459,845
    Assets (EOY)
    $55,479,641
  • 2019 · 990

    Revenue
    $14,977,593
    Expenses
    $15,453,247
    Assets (EOY)
    $52,636,270
  • 2019 · 990

    Revenue
    $14,977,593
    Expenses
    $15,453,247
    Assets (EOY)
    $52,636,270
  • 2018 · 990

    Revenue
    $15,105,671
    Expenses
    $15,420,217
    Assets (EOY)
    $51,935,296
  • 2017 · 990

    Revenue
    $14,292,836
    Expenses
    $14,767,259
    Assets (EOY)
    $53,499,937
  • 2017 · 990

    Revenue
    $14,292,836
    Expenses
    $14,767,259
    Assets (EOY)
    $53,499,937
  • 2017 · 990

    Revenue
    $14,292,836
    Expenses
    $14,767,259
    Assets (EOY)
    $53,499,937
  • 2016 · 990

    Revenue
    $15,161,067
    Expenses
    $14,782,834
    Assets (EOY)
    $54,070,191

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

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

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.