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Nonprofit · EIN 46-2831205

OSULLIVAN INSTITUTE INC

Also known as NAVILLUS FOUNDATION

Tax-exempt (reinstated) · NYC, NY 10017

Financials

$293K$95K2025
Revenue Expenses · by fiscal year end
Financials of OSULLIVAN INSTITUTE INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$292,711$94,520$198,191$808,039$0$808,039
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$265,000
Program service revenue
$0
Investment income
$27,711
Other revenue
$0

Expenses

Grants and similar amounts paid
$94,500
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Program services (functional)
$94,500
Management and general (functional)
$20

Balance sheet and other

Total assets, start of year
$609,112
Total assets, end of year
$808,039
Total liabilities, end of year
$0
Net assets, end of year
$808,039
Net assets without donor restrictions
$808,039
Gross receipts
$292,711
Employees
0
Volunteers
5
Year formed
2012
State of legal domicile
NY

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
Katie OSullivanDirector
Trustee or director
2$0
Caroline OSullivanDirector
Trustee or director, Officer
5$0

Address and contacts

Address (IRS master file)
633 3RD AVE FL 17, NYC, NY 10017-8113
In care of
% SALINA MADDOCK ESQ
Mailing address (990-N for 2022)
633 3rd avenue FL 17, Manhattan NY 10017
Principal officer (990 for 2025)
Caroline O'Sullivan, 633 3rd avenue, fl 17, New York, NY 10017
Principal officer (990-N for 2022)
Caroline O'Sullivan, 115 Park Lane, Queens NY 11363
Signed the 990
Caroline OSullivan, Director
Phone
(212) 750-1808

Mission

The Navillus Foundation aims to provide a beacon of hope and support for the most vulnerable populations in the United States, with special emphasis on individuals located in New York City. We are dedicated to alleviating the suffering of the homeless, empowering victims of natural disasters to rebuild their lives, nurturing disadvantaged children to achieve their full potential, and extending a helping hand to the less fortunate in our community. We launch several annual campaigns with the general goal of creating a more just and compassionate society where every individual has the opportunity to thrive. Our foundation is committed making a lasting impact and creating a better world around us.

990 for the year ended December 31, 2025

Program accomplishments

  • Direct Grants to Aligned Charitable Organizations: In 2025, The Navillus Foundation began making direct grants to other Section 501(c)(3) public charities whose missions align with our own. We made a $50,000 grant to The Morrison Legacy Foundation, Inc. to support the preservation, documentation, and celebration of the 30-year history and impact of the Morrison and Donnelly Visa Programs, which enabled tens of thousands of Irish citizens to live, work, and build new lives in the United States. We also made a $2,500 grant to Solace House, Inc. to support its suicide prevention and bereavement counseling services in the New York community. Through these partnerships we are able to extend our reach and support organizations doing critical work with the populations we serve.
    Expenses $52,500 · grants $52,500
  • Navillus Higher Education Scholarship Program: 2025 marked the launch of our scholarship program, which we intend to continue annually. We awarded six scholarships of $6,000 each to students under 25 years old who are pursuing higher education. Recipients were selected based on applications consisting of personal statements and letters of reference. By easing the financial burden of college, we aim to help these students achieve their full potential and build a foundation for lasting success.
    Expenses $36,000 · grants $36,000
  • Operation Santa / Winter Wishes: The Navillus Foundation partnered with New York Cares' Winter Wishes campaign to make the holiday season special for children from less fortunate backgrounds. Our $6,000 contribution helped ensure that children across New York City public schools received a gift from Santa even when their families could not afford one. The Company provided over 100 gifts to children in NYC public schools and housing shelters.
    Expenses $6,000 · grants $6,000

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
46-2831205
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
2022
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Medical research (H20)
Assets (IRS master file)
$609,112
Income (IRS master file)
$305,335

Revocation and reinstatement

Exemption revoked
May 15, 2016
Posted by the IRS
August 8, 2016
Reinstated
Effective May 15, 2016

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025–––IRS
990December 2024–––IRS
990December 2023$266,585$0$306,587IRS
990-N for 2022
Officer: Caroline O'Sullivan
December 31, 2022≤ $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 OSULLIVAN INSTITUTE INC

What is the EIN of OSULLIVAN INSTITUTE INC?
The employer identification number (EIN) of OSULLIVAN INSTITUTE INC is 46-2831205.
Is OSULLIVAN INSTITUTE INC tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2016 and reinstated it effective May 15, 2016.
Are donations to OSULLIVAN INSTITUTE INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does OSULLIVAN INSTITUTE INC 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 OSULLIVAN INSTITUTE INC 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 OSULLIVAN INSTITUTE INC 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 OSULLIVAN INSTITUTE INC?
The 990 for the year ended December 31, 2025 names Caroline O'Sullivan.
Who are the officers and directors of OSULLIVAN INSTITUTE INC?
The 990 for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
How much revenue does OSULLIVAN INSTITUTE INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $292,711, expenses of $94,520 and total assets of $808,039 at year end.

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