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Nonprofit · EIN 58-2482389

INTERNATIONAL GEOSYNTHETICS SOCIETY

Tax-exempt · AUSTIN, TX 78733

Financials

$262K$375K2023$452K$402K2024
Revenue Expenses · by fiscal year end
Financials of INTERNATIONAL GEOSYNTHETICS SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$452,273$402,073$50,200$452,182$8,849$443,333
December 31, 2023990$262,323$374,542-$112,219$333,773$7,096$326,677
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$375,045
Membership dues
$375,045
Program service revenue
$0
Investment income
$6,180
Other revenue
$71,048

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$13,616
Travel
$35,201
Program services (functional)
$314,162
Management and general (functional)
$80,481
Fundraising (functional)
$7,430

Balance sheet and other

Total assets, start of year
$333,773
Total assets, end of year
$452,182
Total liabilities, end of year
$8,849
Net assets, end of year
$443,333
Net assets without donor restrictions
$443,333
Gross receipts
$452,273
Employees
0
Volunteers
35
Year formed
1999
State of legal domicile
TX

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2024, highest compensation first.

NameTitleHours / weekCompensation
Minerva Company - Elise OatmanSecretariat Manager
Officer
40$109,228
John KrausExecutive Director
Officer
16$55,571
Sam AllenPresident
Trustee or director, Officer
3$0
Edoardo ZannoniVice President
Trustee or director, Officer
3$0
Jie HanTreasurer
Trustee or director, Officer
3$0
Laura CarboneSecretary General
Trustee or director, Officer
3$0
Chungsik YooImmediate past president
Trustee or director, Officer
3$0
990 for the year ended December 31, 2023: 7 people
NameTitleHours / weekCompensation
Minerva Company - Elise OatmanSecretariat Manager
Officer
40$108,921
John KrausExecutive Director
Officer
16$58,978
Sam AllenPresident
Trustee or director, Officer
3$0
Edoardo ZannoniVice President
Trustee or director, Officer
3$0
Jie HanTreasurer
Trustee or director, Officer
3$0
Laura CarboneSecretary General
Trustee or director, Officer
3$0
Chungsik YooImmediate past president
Trustee or director, Officer
3$0

Address and contacts

Address (IRS master file)
9225 BEE CAVES RD BLDG B, AUSTIN, TX 78733-6204
In care of
% PETER E STEVENSON
Principal officer (990 for 2024)
Elise Oatman, 1934 Commerce Lane Ste 4, Jupiter, FL 33458
Signed the 990
Jie Han, Treasurer
Phone
(561) 768-9489
Return prepared by
MONTEMAYOR BRITTON BENDER CAREY PC

Mission

To collect, evaluate, and disseminate knowledge on all matters related to geosynthetics. This is accomplished through regional, national, and international seminars, symposia, and conferences.

990 for the year ended December 31, 2024

Program accomplishments

  • The dissemination of information through newsletters and journals to members of the International Geosynthetics Society. Discussions and involvement of international chapters to further the knowledge of geosynthetics.
    Expenses $314,162

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
58-2482389
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
2001
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$452,182
Income (IRS master file)
$452,273

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$452,273$402,073$452,182XML
990December 2023$262,323$374,542$333,773XML
990December 2022$255,130$314,710$470,681IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 58-2482389).

Questions about INTERNATIONAL GEOSYNTHETICS SOCIETY

What is the EIN of INTERNATIONAL GEOSYNTHETICS SOCIETY?
The employer identification number (EIN) of INTERNATIONAL GEOSYNTHETICS SOCIETY is 58-2482389.
Is INTERNATIONAL GEOSYNTHETICS SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 2001.
Are donations to INTERNATIONAL GEOSYNTHETICS SOCIETY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does INTERNATIONAL GEOSYNTHETICS SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of INTERNATIONAL GEOSYNTHETICS SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did INTERNATIONAL GEOSYNTHETICS SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of INTERNATIONAL GEOSYNTHETICS SOCIETY?
The 990 for the year ended December 31, 2024 names Elise Oatman.
Who are the officers and directors of INTERNATIONAL GEOSYNTHETICS SOCIETY?
The 990 for the year ended December 31, 2024 lists 7 people; 2 received compensation from the organization, the highest $109,228 (Minerva Company - Elise Oatman, Secretariat Manager).
How much revenue does INTERNATIONAL GEOSYNTHETICS SOCIETY have?
On its 990 for the year ended December 31, 2024 it reported revenue of $452,273, expenses of $402,073 and total assets of $452,182 at year end.

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