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Nonprofit · EIN 84-3304186

CITY ISLAND OYSTER REEF INC

Tax-exempt · BRONX, NY 10464

Financials

$527K$227K2023$99K$220K2024$208K$214K2025
Revenue Expenses · by fiscal year end
Financials of CITY ISLAND OYSTER REEF INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$208,109$213,962-$5,853$171,478$0$171,478
December 31, 2024990$99,411$219,941-$120,530$187,331$10,000$177,331
December 31, 2023990$527,157$226,581$300,576$321,783$23,922$297,861
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$205,470
of which government grants
$128,853
Program service revenue
$0
Investment income
$0
Net income from fundraising events
$2,467
Other revenue
$2,639

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$0
Other salaries and wages
$89,624
Salaries, compensation and benefits (total)
$102,507
Professional fundraising fees
$0
Legal fees
$3,075
Accounting fees
$21,400
Depreciation
$8,376
Program services (functional)
$150,032
Management and general (functional)
$53,964
Fundraising (functional)
$9,966

Balance sheet and other

Total assets, start of year
$187,331
Total assets, end of year
$171,478
Total liabilities, end of year
$0
Net assets, end of year
$171,478
Land, buildings and equipment
$31,002
Net assets without donor restrictions
$149,407
Net assets with donor restrictions
$22,071
Gross receipts
$224,366
Employees
7
Volunteers
75
Year formed
2019
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
MARIA CARUSOBOARD MEMBER
Trustee or director
5$0
HAILEY CLANCY PHDBOARD MEMBER
Trustee or director
10$0
ANN HENDERSON PHDBOARD MEMBER
Trustee or director
5$0
LINDA BALDWINBOARD MEMBER
Trustee or director
5$0
SALLY PAGE CONNOLLYCHAIR
Officer
30$0
MIKE CAREWVICE CHAIR
Officer
15$0
BARBARA ZAHM PHDTREASURER
Officer
15$0
BARBARA BURN DOLENSEKSECRETARY
Officer
10$0
990 for the year ended December 31, 2024: 7 people
NameTitleHours / weekCompensation
MARIA CARUSOBOARD MEMBER
Trustee or director
5$0
HAILEY CLANCY PHDBOARD MEMBER
Trustee or director
10$0
ANN HENDERSON PHDBOARD MEMBER
Trustee or director
5$0
SALLY PAGE CONNOLLYCHAIR
Officer
30$0
MIKE CAREWVICE CHAIR
Officer
15$0
BARBARA ZAHM PHDTREASURER
Officer
15$0
BARBARA BURN DOLENSEKSECRETARY
Officer
10$0
990 for the year ended December 31, 2023: 7 people
NameTitleHours / weekCompensation
MARIA CARUSOBOARD MEMBER
Trustee or director
5$0
HAILEY CLANCY PHDBOARD MEMBER
Trustee or director
10$0
ANN HENDERSON PHDBOARD MEMBER
Trustee or director
5$0
SALLY PAGE CONNOLLYCHAIR
Officer
30$0
MIKE CAREWVICE CHAIR
Officer
15$0
BARBARA ZAHM PHDTREASURER
Officer
15$0
BARBARA BURN DOLENSEKSECRETARY
Officer
10$0

Address and contacts

Address (IRS master file)
88 HORTON STREET, BRONX, NY 10464-1673
In care of
% BARBARA ZAHM
Principal officer (990 for 2025)
SALLY CONNOLLY, 88 HORTON STREET, BRONX, NY 10464
Signed the 990
SALLY CONNOLLY, CHAIR
Return prepared by
STEPHEN FRANCIOSA CPA

Mission

SEE SCHEDULE O.

990 for the year ended December 31, 2025

Program accomplishments

  • EDUCATION OUTREACH CIOR believes that engaging the community through educational initiatives is an important way to protect the environment into the future. We aim to educate the local community about oysters and their place as a keystone species within Long Island Sounds rich biodiversity.
    Expenses $108,023
  • OYSTER REEF CIOR has been funded to select two sites for oyster reefs from five potential locations around the island that were identified by an extensive survey of existing oyster populations around City Island. CIOR monitored the five sites and the data on oyster growth and mortality from those sessions was used to inform the selection of the two sites. The plans and designs for the oyster reefs at those sites are now being presented for sign-off and permitting. Now that the two sites have been selected, specially engineered structures will be put in place, and cured shell material will be added in order to promote reef formation. In addition, CIOR has partnered with local City Island restaurants to collect their discarded shells in 32-gallon bins and bring them to a curing site at the Pelham Bay Landfill. The shells are placed on the grass-covered soil on top of one another to a height of two feet and regularly turned to provide sufficient airflow. No chemicals are used in the curing process, which takes up to twelve months.
    Expenses $42,009

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
84-3304186
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
2019
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Environment (C99)
Assets (IRS master file)
$171,478
Income (IRS master file)
$224,366

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$208,109$213,962$171,478XML
990December 2024$99,411$219,941$187,331IRS
990December 2023$527,157$226,581$321,783XML
990-EZDecember 2022–––IRS
990-EZDecember 2021–––IRS
990-EZDecember 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 84-3304186).

Questions about CITY ISLAND OYSTER REEF INC

What is the EIN of CITY ISLAND OYSTER REEF INC?
The employer identification number (EIN) of CITY ISLAND OYSTER REEF INC is 84-3304186.
Is CITY ISLAND OYSTER REEF INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Are donations to CITY ISLAND OYSTER REEF INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CITY ISLAND OYSTER REEF 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 CITY ISLAND OYSTER REEF 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 CITY ISLAND OYSTER REEF 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 CITY ISLAND OYSTER REEF INC?
The 990 for the year ended December 31, 2025 names SALLY CONNOLLY.
Who are the officers and directors of CITY ISLAND OYSTER REEF INC?
The 990 for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
How much revenue does CITY ISLAND OYSTER REEF INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $208,109, expenses of $213,962 and total assets of $171,478 at year end.

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