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Nonprofit · EIN 94-1358305

AMERICAN CHEMICAL SOCIETY

Also known as CALIFORNIA SECTION

Tax-exempt · SAN LEANDRO, CA 94577

Financials

$451K$284K2023$316K$311K2024$489K$221K2025
Revenue Expenses · by fiscal year end
Financials of AMERICAN CHEMICAL SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$488,911$220,930$267,981$2,618,676$0$2,618,676
December 31, 2024990$316,036$310,873$5,163$2,144,485$0$2,144,485
December 31, 2023990$451,488$284,186$167,302$1,910,797$0$1,910,797
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$360,553
Membership dues
$19,726
Program service revenue
$110,323
Investment income
$18,035
Net gain from sales of assets
-$34,819
Other revenue
$0

Expenses

Grants and similar amounts paid
$76,788
Compensation of officers, directors and key employees
$0
Other salaries and wages
$36,220
Salaries, compensation and benefits (total)
$52,318
Professional fundraising fees
$0
Travel
$34,313
Program services (functional)
$220,930

Balance sheet and other

Total assets, start of year
$2,144,485
Total assets, end of year
$2,618,676
Total liabilities, end of year
$0
Net assets, end of year
$2,618,676
Publicly traded securities
$2,346,805
Gross receipts
$559,174
Employees
1
Volunteers
200
Year formed
1941
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
ALEX MADONIKCHAIR, DIRECTOR
Trustee or director, Officer
6$0
JAMES POSTMACHAIR-ELECT, DIRECTOR
Trustee or director, Officer
6$0
PATRICK LEEIMMEDIATE PAST CHAIR, DIRECTOR
Trustee or director, Officer
2$0
MICHAEL CHENGSECRETARY, DIRECTOR
Trustee or director, Officer
4$0
FANNY FRAUSTODIRECTOR
Trustee or director
1$0
ATEFEH TAHERIDIRECTOR
Trustee or director
1$0
PAUL VARTANIANTREASURER, DIRECTOR
Officer
4$0
990 for the year ended December 31, 2024: 7 people
NameTitleHours / weekCompensation
PATRICK LEECHAIR, CHAIR OF THE BOARD OF DIRECTORS
Trustee or director, Officer
6$0
ALEX MADONIKCHAIR-ELECT, DIRECTOR
Trustee or director, Officer
10$0
ATEFEH TAHERIIMMEDIATE PAST CHAIR, DIRECTOR
Trustee or director
5$0
MICHAEL CHENGSECRETARY, DIRECTOR
Trustee or director
6$0
PAUL VARTANIANTREASURER
Trustee or director
6$0
FANNY FRAUSTODIRECTOR
Trustee or director
2$0
DON MCLEANDIRECTOR
Trustee or director
2$0
990 for the year ended December 31, 2023: 7 people
NameTitleHours / weekCompensation
ATEFEH TAHERICHAIR, CHAIR OF THE BOARD OF DIRECTORS
Trustee or director, Officer
10$0
PATRICK LEECHAIR-ELECT, DIRECTOR
Trustee or director, Officer
10$0
FANNY FRAUSTOIMMEDIATE PAST CHAIR, DIRECTOR
Trustee or director, Officer
5$0
MICHAEL CHENGSECRETARY, DIRECTOR
Trustee or director, Officer
10$0
PAUL VARTANIANTREASURER
Trustee or director, Officer
10$0
LEE LATIMERDIRECTOR
Trustee or director
2$0
ATTILA PAVLATHDIRECTOR
Trustee or director
2$0

Address and contacts

Address (IRS master file)
2950 MERCED ST STE 225, SAN LEANDRO, CA 94577-5669
In care of
% DR PAUL F VARTANIAN
Principal officer (990 for 2025)
CALIFORNIA SECTION OF THE AMERICAN CHEMICAL SOCIETY, 2950 MERCED STREET SUITE 225, SAN LEANDRO, CA 94577
Signed the 990
Paul Vartanian, Treasurer
Phone
(510) 391-9922

California records

California keeps its own records of charities and corporations. Search them by EIN 94-1358305 or by the name AMERICAN CHEMICAL SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

THE MISSION OF THE CALIFORNIA SECTION, AMERICAN CHEMICAL SOCIETY, IS THE ADVANCEMENT OF ALL CHEMICAL ACTIVITIES, DEVELOPMENT OF PROFESSIONAL RELATIONS OF THOSE INTERESTED IN CHEMISTRY AND CHEMICAL ENGINEERING, PROMOTION OF THE GENERAL WELFARE OF THE MEMBERS, ADVANCEMENT OF CHEMICAL EDUCATION AT ALL LEVELS AND DISSEMINATION OF ALL RELEVANT SUBJECT MATTERS

990 for the year ended December 31, 2025

Program accomplishments

  • THE 2025 ACS WESTEREN REGIONAL MEETING, INCORPORATING THE BAY AREA CHEMISTRY SYMPOSIUM, RAN FOR FOUR DAYS AND WAS CO-SPONSORED BY THE SILICON VALLEY SECTION, ACS.
    Expenses $23,272 · grants $145,365 · revenue $109,243
  • LOCAL ADMINISTRATION OF THE INTERNATIONAL CHEMISTRY OLYMPIAD PROGRAM: STUDENTS FROM NORTHERN CALIFORNIA HIGH SCHOOLS COMPETE FOR A POSITION ON THE UNITED STATES TEAM IN THE INTERNATIONAL CHEMISTRY OLYMPIAD. THE CALIFORNIA SECTION DISTRIBUTED TESTING MATERIALS, PROCTORED EXAMS AND MADE LOCAL AWARDS TO PARTICIPATING STUDENTS AND TEACHERS
    Expenses $5,474 · grants $490
  • PROJECT SEED IS A MENTORING ACTIVITY FOR HIGH SCHOOL STUDENTS FROM LOW INCOME OR MINORITY FAMILIES THROUGH SUMMER INTERNSHIPS IN A CHEMICAL LABORATORY
    Expenses $74,525 · grants $56,275
  • ALL OTHER FUNCITIONAL EXPENSES FOR 2025
    Expenses $117,659 · grants $92,722

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
94-1358305
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Exempt since
1946
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$2,618,676
Income (IRS master file)
$559,174

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$488,911$220,930$2,618,676IRS
990December 2024$316,036$310,873$2,144,485IRS
990December 2023$451,488$284,186$1,910,797XML
990December 2022$319,567$188,551$1,589,731IRS
990December 2021–––IRS
990December 2020–––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 94-1358305).

Questions about AMERICAN CHEMICAL SOCIETY

What is the EIN of AMERICAN CHEMICAL SOCIETY?
The employer identification number (EIN) of AMERICAN CHEMICAL SOCIETY is 94-1358305.
Is AMERICAN CHEMICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1946.
Which annual return does AMERICAN CHEMICAL 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 AMERICAN CHEMICAL SOCIETY 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 AMERICAN CHEMICAL SOCIETY 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 AMERICAN CHEMICAL SOCIETY?
The 990 for the year ended December 31, 2025 names CALIFORNIA SECTION OF THE AMERICAN CHEMICAL SOCIETY.
Who are the officers and directors of AMERICAN CHEMICAL SOCIETY?
The 990 for the year ended December 31, 2025 lists 7 people; 0 received compensation from the organization.
How much revenue does AMERICAN CHEMICAL SOCIETY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $488,911, expenses of $220,930 and total assets of $2,618,676 at year end.

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