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Nonprofit · EIN 38-3934418

GEOLOGICAL ENGINEERING FOUNDATION

Tax-exempt · MORAGA, CA 94556

Financials

$321K$418K2025
Revenue Expenses · by fiscal year end
Financials of GEOLOGICAL ENGINEERING FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$320,672$417,630-$96,958$11,847$0$11,847
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$320,671
Investment income
$1
Other revenue
$0

Expenses

Grants and similar amounts paid
$282,500
Compensation of officers, directors and key employees
$47,905
Other salaries and wages
$37,150
Salaries, compensation and benefits (total)
$85,055
Professional fundraising fees
$0
Travel
$3
Program services (functional)
$417,630

Balance sheet and other

Total assets, start of year
$108,521
Total assets, end of year
$11,847
Total liabilities, end of year
$0
Net assets, end of year
$11,847
Net assets without donor restrictions
$11,847
Gross receipts
$320,672
Employees
0
Year formed
2014
State of legal domicile
CA

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, 2025, highest compensation first.

NameTitleHours / weekCompensation
DIMITRIOS ZEKKOSDirector
Trustee or director
2$32,975
NICHOLAS SITARSecretary Treasurer
Officer
1$6,880
ROBERT KAYENDirector
Trustee or director
1$5,500
KENNETH A JOHNSONPresident
Officer
1$2,500

Address and contacts

Address (IRS master file)
1742 SAINT ANDREWS DR, MORAGA, CA 94556-1033
In care of
% NICHOLAS SITAR
Mailing address (990-N for 2019)
1742 Saint Andrews Drive, Moraga CA 94556
Principal officer (990 for 2025)
Kenneth A Johnsons, 51 San Leandro Way, San Francisco, CA 94127
Principal officer (990-N for 2019)
Nicholas Sitar, 1742 Saint Andrews Drive, Moraga CA 94556
Signed the 990
NICHOLAS SITAR, Secretary & Treasurer
Phone
(925) 683-9857

Mission

Educational activities in geological and geotechnical engineering

990 for the year ended December 31, 2025

Program accomplishments

  • Taught a 3-module online short course on Geotechnical Earthquake Engineering
    Expenses $80,420 · revenue $248,599
  • Shortcourse on new technologies for site monitoring and charcterization
    Expenses $28,463 · revenue $63,582
  • Organized a technical symposium recognizing the contributions of Professor James K. Mitchell
    Expenses $15,213 · revenue $20,810

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, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
38-3934418
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2015
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$11,847
Income (IRS master file)
$320,672

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025–––IRS
990December 2024–––IRS
990December 2023$118,651$68,296$57,005IRS
990December 2022$106,958$106,757$6,663IRS
990December 2021–––IRS
990-N for 2019
Officer: Nicholas Sitar
December 31, 2019≤ $50,000 receipts––e-Postcard

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about GEOLOGICAL ENGINEERING FOUNDATION

What is the EIN of GEOLOGICAL ENGINEERING FOUNDATION?
The employer identification number (EIN) of GEOLOGICAL ENGINEERING FOUNDATION is 38-3934418.
Is GEOLOGICAL ENGINEERING FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
Are donations to GEOLOGICAL ENGINEERING FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does GEOLOGICAL ENGINEERING FOUNDATION 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 GEOLOGICAL ENGINEERING FOUNDATION due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did GEOLOGICAL ENGINEERING FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of GEOLOGICAL ENGINEERING FOUNDATION?
The 990 for the year ended December 31, 2025 names Kenneth A Johnsons.
Who are the officers and directors of GEOLOGICAL ENGINEERING FOUNDATION?
The 990 for the year ended December 31, 2025 lists 4 people; 4 received compensation from the organization, the highest $32,975 (DIMITRIOS ZEKKOS, Director).
How much revenue does GEOLOGICAL ENGINEERING FOUNDATION have?
On its 990 for the year ended December 31, 2025 it reported revenue of $320,672, expenses of $417,630 and total assets of $11,847 at year end.

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