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Nonprofit · EIN 94-1669545

ELEMENTARY INSTITUTE OF SCIENCE

Tax-exempt · SAN DIEGO, CA 92114

Financials

$1.6M$1.7M2022$1.4M$1.9M2023$1.3M$1.8M2024
Revenue Expenses · by fiscal year end
Financials of ELEMENTARY INSTITUTE OF SCIENCE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$1,329,443$1,801,556-$472,113$5,181,832$100,173$5,081,659
June 30, 2024990$1,352,706$1,863,019-$510,313$5,560,227$90,462$5,469,765
June 30, 2023990$1,560,448$1,700,358-$139,910$6,018,589$107,612$5,910,977
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$1,057,732
of which government grants
$39,715
Program service revenue
$173,727
Investment income
$27,996
Net rental income
$39,307
Net gain from sales of assets
-$1,378
Net income from fundraising events
$25,111
Other revenue
$69,988

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$242,356
Other salaries and wages
$842,560
Salaries, compensation and benefits (total)
$1,244,158
Professional fundraising fees
$0
Occupancy
$4,533
Depreciation
$135,630
Program services (functional)
$1,435,989
Management and general (functional)
$85,573
Fundraising (functional)
$279,994

Balance sheet and other

Total assets, start of year
$5,560,227
Total assets, end of year
$5,181,832
Total liabilities, end of year
$100,173
Net assets, end of year
$5,081,659
Land, buildings and equipment
$3,479,389
Net assets without donor restrictions
$3,358,711
Net assets with donor restrictions
$1,722,948
Gross unrelated business income
$35,907
Gross receipts
$1,340,029
Employees
38
Volunteers
150
Year formed
1969
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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
SARAH TUAKLI COOPERExecutive Dir.
Officer
40$131,787$17,262
CHARLENE BROWNE FORMERInterim ED
Officer
40$101,929$120
ALICIA JOHALDirector
Trustee or director
2$0$0
DEBRA ROYPresident
Trustee or director, Officer
2$0$0
DR PAMELA THOMPSONVice President
Trustee or director, Officer
2$0$0
DR MARY TAYLORDirector
Trustee or director
2$0$0
SIDIQA HOOKERDirector
Trustee or director
2$0$0
DR PEGGY CURTIS-MARTINDirector
Trustee or director
2$0$0
DR MERRILYN DATTADirector
Trustee or director
2$0$0
DR SHARON WHITEHURST-PAYNEDirector
Trustee or director
2$0$0
LISA WALTERS-HOFFERTTreasurer
Trustee or director, Officer
2$0$0
ALBERTO VASQUEZDirector
Trustee or director
2$0$0
ANDREI LUCASSecretary
Trustee or director, Officer
2$0$0
SUDARSHAN KESHAVADirector
Trustee or director
2$0$0
GABRIEL CHONGDirector
Trustee or director
2$0$0
2 more people on this return
NameTitleHours / weekCompensation
Patricia TomlinDirector
Trustee or director
2$0
JOSEPH VASQUEZDirector
Trustee or director
2$0
990 for the year ended June 30, 2024: 17 people
NameTitleHours / weekCompensationOther / benefits
CHARLENE BROWNE FORMERInterim ED
Officer
40$118,463$3,508
ALICIA JOHALDirector
Trustee or director
2$0$0
DEBRA ROYPresident
Trustee or director, Officer
2$0$0
DR PAMELA THOMPSONVice President
Trustee or director, Officer
2$0$0
DR MARY TAYLORDirector
Trustee or director
2$0$0
SIDIQA HOOKERDirector
Trustee or director
2$0$0
DR PEGGY CURTIS-MARTINDirector
Trustee or director
2$0$0
DR MERRILYN DATTADirector
Trustee or director
2$0$0
DR SHARON WHITEHURST-PAYNEDirector
Trustee or director
2$0$0
LISA WALTERS-HOFFERTTreasurer
Trustee or director, Officer
2$0$0
ALBERTO VASQUEZDirector
Trustee or director
2$0$0
ANDREI LUCASSecretary
Trustee or director, Officer
2$0$0
SUDARSHAN KESHAVADirector
Trustee or director
2$0$0
GABRIEL CHONGDirector
Trustee or director
2$0$0
Patricia TomlinDirector
Trustee or director
2$0$0
JOSEPH VASQUEZDirector
Trustee or director
2$0$0
SARAH TUAKLI COOPERExecutive Dir.
Officer
40$0$0
990 for the year ended June 30, 2023: 18 people
NameTitleHours / weekCompensationOther / benefits
CHARLENE BROWNEINTERIM ED
Officer
40$105,783$3,508
JAMES STONEExecutive Dir.
Officer
40$79,308$0
ALICIA JOHALDirector
Trustee or director
2$0$0
DEBRA ROYPresident
Trustee or director, Officer
2$0$0
DR PAMELA THOMPSONVice President
Trustee or director, Officer
2$0$0
DR MARY TAYLORDirector
Trustee or director
2$0$0
SIDIQA HOOKERDirector
Trustee or director
2$0$0
DR PEGGY CURTIS-MARTINDirector
Trustee or director
2$0$0
DR MERRILYN DATTADirector
Trustee or director
2$0$0
DR SHARON WHITEHURST-PAYNEDirector
Trustee or director
2$0$0
LISA WALTERS-HOFFERTTreasurer
Trustee or director, Officer
2$0$0
ALBERTO VASQUEZDirector
Trustee or director
2$0$0
ANDREI LUCASSecretary
Trustee or director, Officer
2$0$0
SUDARSHAN KESHAVADirector
Trustee or director
2$0$0
GABRIEL CHONGDirector
Trustee or director
2$0$0
DR CARLOS NUNEZDirector
Trustee or director
2$0$0
JOSEPH VASQUEZDirector
Trustee or director
2$0$0
SARAH TUAKLI COOPERExecutive Dir.
Officer
40$0$0

Address and contacts

Address (IRS master file)
608 51ST ST, SAN DIEGO, CA 92114-2201
In care of
% JOE VASQUEZ
Principal officer (990 for 2024)
SARAH TUAKLI COOPER, 608 51ST STREET, SAN DIEGO, CA 92114
Signed the 990
SARAH TUAKLI COOPER, Executive Dir.
Phone
(619) 263-2302
Return prepared by
Leaf & Cole LLP

California records

California keeps its own records of charities and corporations. Search them by EIN 94-1669545 or by the name ELEMENTARY INSTITUTE OF SCIENCE.

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

Mission

Elementary Institute of Science (EIS) is a premier science enrichment center dedicated to developing STEM skills and interests in order to address the widening gap of under-represented students in science. Through inquiry-based project learning activities, children are able explore, experiment and understand the world of science, technology, engineering and math (STEM).

990 for the year ended June 30, 2025

Program accomplishments

  • Elementary Institute of Science (EIS) is a premier science enrichment center dedicated to developing STEM skills and interests in order to address the widening gap of under-represented students in science. Through inquiry-based project learning activities, children are able explore, experiment and understand the world of science, technology, engineering and math (STEM). EIS was established in Southeast San Diego in 1964. The founder, Tom Watts, started a hands-on science club in the back of his classroom. He believed science education would provide a strong foundation for the students to continue on to college and to succeed in the rapidly expanding STEM-skilled workforce. The after-school club thrived. EIS became one of the first and finest after-school STEM programs in the United States.The EIS Science and Technology Learning Center is a landmark building which provides the ideal environment for hands-on learning and exploration. The 15,000-square foot facility includes five science labs, two IT labs, a photography lab, lecture theatre and conference room. EIS provides on-going, progressive STEM programs that continue to challenge and engage students from the age of 7 through high school graduation in a specialized laboratory setting. All subjects include a hands-on learning component. Classes have a maximum ratio of 10 students to one instructor. The programs encompass 18 different subjects with continuously improved curriculum and topical themes. EIS programs utilize community resources and collaborations. Programs are offered both after-school and on Saturdays, in addition to a popular Summer Science Camp. EIS approach is designed to produce long-term learning gains and sustain interest in STEM learning through stepped levels. Program activities include field trips, presentations and career exploration.Over 10,000 students from all over San Diego County have attended the Elementary Institute of Science. Many EIS students have gone on to attend the finest universities in the United States and have become doctors, scientists and other STEM professionals.
    Expenses $1,435,989 · revenue $173,727

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
94-1669545
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1969
Accounting year ends
June
Files
Form 990 or 990-EZ
Assets (IRS master file)
$5,181,832
Income (IRS master file)
$1,340,029

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$1,329,443$1,801,556$5,181,832IRS
990-TJune 2025–––IRS
990June 2024$1,352,706$1,863,019$5,560,227IRS
990June 2023$1,560,448$1,700,358$6,018,589XML
990June 2022$1,891,183$1,488,593$6,097,822IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2019–––IRS
990June 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 94-1669545).

Questions about ELEMENTARY INSTITUTE OF SCIENCE

What is the EIN of ELEMENTARY INSTITUTE OF SCIENCE?
The employer identification number (EIN) of ELEMENTARY INSTITUTE OF SCIENCE is 94-1669545.
Is ELEMENTARY INSTITUTE OF SCIENCE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1969.
Are donations to ELEMENTARY INSTITUTE OF SCIENCE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ELEMENTARY INSTITUTE OF SCIENCE 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 ELEMENTARY INSTITUTE OF SCIENCE due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did ELEMENTARY INSTITUTE OF SCIENCE last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of ELEMENTARY INSTITUTE OF SCIENCE?
The 990 for the year ended June 30, 2025 names SARAH TUAKLI COOPER.
Who are the officers and directors of ELEMENTARY INSTITUTE OF SCIENCE?
The 990 for the year ended June 30, 2025 lists 17 people; 2 received compensation from the organization, the highest $131,787 (SARAH TUAKLI COOPER, Executive Dir.).
How much revenue does ELEMENTARY INSTITUTE OF SCIENCE have?
On its 990 for the year ended June 30, 2025 it reported revenue of $1,329,443, expenses of $1,801,556 and total assets of $5,181,832 at year end.

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