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INTERNATIONAL SOCIETY OF TRANSPORT AIRCRAFT TRADERS

EIN 52-1304567 CHICAGO, IL

Browse the largest nonprofits in Illinois

Revenue 2024
$10,141,111
Expenses 2024
$9,709,370

As filed

Subsection
06
Classification
1000
Street
330 N WABASH AVE STE 2000

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

PROVIDE MEMBERS WITH THE HIGHEST QUALITY AND BEST-VALUE NETWORKING AND EDUCATION OPPORTUNITIES IN COMMERCIAL AVIATION, ADMINISTERING THE INDUSTRY'S LEADING APPRAISER PROGRAM, AND INVESTING IN THE FUTURE.

Activities or mission (Part I)

PROVIDE NETWORKING AND EDUCATIONAL OPPORTUNITIES TO AVATION PROFESSIONALS.

  • CONFERENCES - ISTAT HOSTS ANNUAL CONFERENCES IN NORTH AMERICA, ASIA, EUROPE AND LATIN AMERICA TO PROVIDE MEMBERS EDUCATIONAL FORUMS AND NETWORKING OPPORTUNITIES.

  • AIR SHOW AND HOLIDAY RECEPTIONS - ISTAT HOSTS ANNUAL RECEPTIONS IN CONJUNCTION WITH MAJOR AIRSHOWS AND AROUND THE HOLIDAYS TO PROVIDE NETWORKING OPPORTUNITIES FOR ITS MEMBERS.

  • EDUCATIONAL AND RESEARCH - ISTAT PROMOTES EDUCATION AND RESEARCH BY INVESTING IN THE FUTURE THROUGH GRANTS TO THE ISTAT FOUNDATION IN SUPPORT OF INDIVIDUALS AND INSTITUTIONS THAT PROMOTE THE ADVANCEMENT OF COMMERCIAL AVIATION AND HUMANITARIANISM.

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.

  • Mary Prettyman

    PRESIDENT

    Total calculated
    $0
    Hours/week
    2 + 2 related
  • Marilyn Gan

    VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    2
  • Gerry Laderman

    TREASURER

    Total calculated
    $0
    Hours/week
    2
  • Peter Blakeney

    SECRETARY

    Total calculated
    $0
    Hours/week
    2
  • Dean Gerber

    IMMEDIATE PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    2 + 2 related
  • Bryson Monteleone

    IAP BOARD CHAIR

    Total calculated
    $0
    Hours/week
    2
  • Sigthor Einarsson

    ISTAT FOUNDATION CHAIR

    Total calculated
    $0
    Hours/week
    2 + 2 related
  • Sarah Aoun

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Marine Benoit

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Mamoun Kuzbari

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Peter Negline

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Adam Pilarski

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Wolfgang Schmid

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Mylene Scholnick

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Paraic Quinn

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Paul O'Dwyer

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Michael Littleton

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Sarah Conway

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Julian Balaam

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2
  • Guilherme Lopes

    EXECUTIVE DIRECTOR

    Total calculated
    $0
    Hours/week
    38 + 2 related

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
    $10,141,111
    Expenses
    $9,709,370
    Contributions
    $0
    Grants paid
    $769,589
  • 2023
    Revenue
    $10,445,205
    Expenses
    $9,686,318
    Contributions
    $0
    Grants paid
    $557,497
  • 2022
    Revenue
    $7,424,463
    Expenses
    $8,102,696
    Contributions
    $0
    Grants paid
    $889,161

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
    $6,305,891
    Expenses
    $6,208,543
    Assets (EOY)
    $15,949,487
  • 2020 · 990

    Revenue
    $4,687,225
    Expenses
    $5,878,265
    Assets (EOY)
    $13,635,184
  • 2019 · 990

    Revenue
    $9,345,820
    Expenses
    $8,035,284
    Assets (EOY)
    $14,912,991
  • 2018 · 990

    Revenue
    $8,318,949
    Expenses
    $7,191,328
    Assets (EOY)
    $12,457,996
  • 2017 · 990

    Revenue
    $7,607,108
    Expenses
    $6,267,603
    Assets (EOY)
    $13,183,349
  • 2016 · 990

    Revenue
    $6,277,887
    Expenses
    $5,472,406
    Assets (EOY)
    $10,726,007
  • 2015 · 990

    Revenue
    $6,841,777
    Expenses
    $4,868,327
    Assets (EOY)
    $9,012,331
  • 2014 · 990

    Revenue
    $5,228,595
    Expenses
    $5,191,241
    Assets (EOY)
    $6,885,186
  • 2013 · 990

    Revenue
    $4,686,851
    Expenses
    $4,431,261
    Assets (EOY)
    $6,802,141
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $3,620,289
    Assets (EOY)
    $6,242,761

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

Where these grants went next →

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 2024 return

  • ISTAT FOUNDATION

    501(C)(3) · SUPPORT INDIVIDUALS AND INSTITUTIONS ADVANCING COMMERCIAL AVIATION · IL

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

Not present in the most recent drop.

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.