Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-0001652

CONNECTICUT STEM FOUNDATION INC

Tax-exempt · SOUTHBURY, CT 06488

Address and contacts

Address (IRS master file)
100 MAIN ST N PMB 377, SOUTHBURY, CT 06488-3840
In care of
% ABIOLA DEJULIO
Mailing address (990-N for 2024)
100 Main Str North, Southbury CT 06488
Principal officer (990-N for 2024)
Abiola DeJulio, 65 Riverside Road, Sandy Hook CT 06482

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2025 990-N for CONNECTICUT STEM FOUNDATION INC

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
20-0001652
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
2003
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B80)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Abiola DeJulio
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: robert j susalka
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Robert J Susalka
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Robert J Susalka
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Robert J Susalka
December 31, 2019≤ $50,000 receipts––e-Postcard

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 20-0001652).

Questions about CONNECTICUT STEM FOUNDATION INC

What is the EIN of CONNECTICUT STEM FOUNDATION INC?
The employer identification number (EIN) of CONNECTICUT STEM FOUNDATION INC is 20-0001652.
Is CONNECTICUT STEM FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2003.
Are donations to CONNECTICUT STEM FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CONNECTICUT STEM FOUNDATION INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of CONNECTICUT STEM FOUNDATION INC 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 CONNECTICUT STEM FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended December 31, 2024.
Who is the principal officer of CONNECTICUT STEM FOUNDATION INC?
The 990-N for 2024 names Abiola DeJulio.

Other nonprofits in SOUTHBURY

All nonprofits in SOUTHBURY · Connecticut · Education