Nonprofit · EIN 16-1374219
ONONDAGA ENVIRONMENTAL INSTITUTE INC
Tax-exempt · DEWITT, NY 13214
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $458,814 | $440,774 | $18,040 | $243,997 | $48,362 | $195,635 |
| December 31, 2024 | 990 | $528,840 | $453,957 | $74,883 | $253,720 | $76,125 | $177,595 |
| December 31, 2023 | 990 | $401,513 | $431,061 | -$29,548 | $211,944 | $109,232 | $102,712 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $326,059
- of which government grants
- $268,226
- Program service revenue
- $132,398
- Investment income
- $5
- Other revenue
- $352
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $23,755
- Other salaries and wages
- $213,839
- Salaries, compensation and benefits (total)
- $278,040
- Professional fundraising fees
- $0
- Accounting fees
- $34,167
- Occupancy
- $13,628
- Travel
- $4,763
- Depreciation
- $9,298
- Program services (functional)
- $259,488
- Management and general (functional)
- $181,286
Balance sheet and other
- Total assets, start of year
- $253,720
- Total assets, end of year
- $243,997
- Total liabilities, end of year
- $48,362
- Net assets, end of year
- $195,635
- Land, buildings and equipment
- $28,140
- Net assets without donor restrictions
- $195,635
- Gross receipts
- $458,814
- Employees
- 7
- Volunteers
- 13
- Year formed
- 1990
- 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.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| EDWARD M MICHALENKO PHD | PRESIDENT Trustee or director, Officer | 40 | $23,755 | $682 |
| JOSEPH M CALLAHAN ESQ | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| PATRICK MANNION | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| TERRY BROWN | SECRETARY/CHAIR Trustee or director, Officer | 0.5 | $0 | $0 |
| CORNELIUS B MURPHY JR PHD | TREASURER Trustee or director, Officer | 0.5 | $0 | $0 |
| HOLLY ROSENTHAL | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
| LISA A DOLAK | VICE PRESIDENT Trustee or director, Officer | 0.5 | $0 | $0 |
| JOHN LACEY | DIRECTOR Trustee or director | 0.5 | $0 | $0 |
990 for the year ended December 31, 2024: 9 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| EDWARD M MICHALENKO PHD | PRESIDENT Trustee or director, Officer | 40 | $24,241 | $656 |
| JOSEPH M CALLAHAN ESQ | DIRECTOR Trustee or director | 1 | $0 | $0 |
| PATRICK MANNION | DIRECTOR Trustee or director | 1 | $0 | $0 |
| TERRY BROWN | SECRETARY/CHAIR Trustee or director, Officer | 1 | $0 | $0 |
| CORNELIUS B MURPHY JR PHD | TREASURER Trustee or director, Officer | 1 | $0 | $0 |
| JUDITH C MOWER PHD | VICE PRESIDENT Trustee or director, Officer | 1 | $0 | $0 |
| HOLLY ROSENTHAL | DIRECTOR Trustee or director | 1 | $0 | $0 |
| LISA A DOLAK | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JOHN LACEY | DIRECTOR Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2023: 9 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| EDWARD M MICHALENKO PHD | PRESIDENT Trustee or director, Officer | 40 | $19,027 |
| JOSEPH M CALLAHAN ESQ | DIRECTOR Trustee or director | 1 | $0 |
| PATRICK MANNION | DIRECTOR Trustee or director | 1 | $0 |
| TERRY BROWN | SECRETARY/CHAIR Trustee or director, Officer | 1 | $0 |
| CORNELIUS B MURPHY JR PHD | TREASURER Trustee or director, Officer | 1 | $0 |
| JUDITH C MOWER PHD | VICE PRESIDENT Trustee or director, Officer | 1 | $0 |
| HOLLY ROSENTHAL | DIRECTOR Trustee or director | 1 | $0 |
| LISA A DOLAK | DIRECTOR Trustee or director | 1 | $0 |
| JOHN LACEY | DIRECTOR Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 5795 WIDEWATERS PARKWAY, DEWITT, NY 13214-1832
- Principal officer (990 for 2025)
- EDWARD M MICHALENKO PH, 6493 RIDINGS ROAD 100, SYRACUSE, NY 13206
- Signed the 990
- EDWARD M MICHALENKO PHD, PRESIDENT
- Phone
- (315) 472-2150
- Website
- HTTPS://WWW.OEI2.ORG
- Return prepared by
- GROSSMAN ST AMOUR CPAS PLLC
Mission
TO ADVANCE ENVIRONMENTAL RESEARCH, EDUCATION, PLANNING AND RESTORATION IN CENTRAL NEW YORK.
Program accomplishments
- THE ORGANIZATION PROVIDES ADMINISTRATIVE SERVICES AND PROJECT MANAGEMENT FOR FEDERAL AND NON-FEDERAL ENVIRONMENTAL GRANTS AND PROGRAMS; COORDINATES FUNDING ACQUISITION FOR MULTI-INSTITUTIONAL TEAMS; AND LEADS PROJECTS THAT INCLUDE ENVIRONMENTAL FIELD SERVICES, DATA ANALYSIS AND SCIENTIFIC WRITING, DEVELOPMENT OF ENVIRONMENTAL EDUCATION EVENTS AND PRODUCTS, FACILITATION OF PUBLIC PARTICIPATION MEETINGS, AND MAPPING AND INTERPRETATION OF GEOSPATIAL DATA USING GEOGRAPHIC INFORMATION SYSTEMS.Expenses $259,488 · revenue $132,750
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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 16-1374219
- 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
- 1994
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C023)
- Assets (IRS master file)
- $243,997
- Income (IRS master file)
- $458,814
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $458,814 | $440,774 | $243,997 | IRS |
| 990 | December 2024 | $528,840 | $453,957 | $253,720 | XML |
| 990 | December 2023 | $401,513 | $431,061 | $211,944 | XML |
| 990 | December 2022 | $451,842 | $524,965 | $174,189 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 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 16-1374219).
Questions about ONONDAGA ENVIRONMENTAL INSTITUTE INC
- What is the EIN of ONONDAGA ENVIRONMENTAL INSTITUTE INC?
- The employer identification number (EIN) of ONONDAGA ENVIRONMENTAL INSTITUTE INC is 16-1374219.
- Is ONONDAGA ENVIRONMENTAL INSTITUTE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1994.
- Are donations to ONONDAGA ENVIRONMENTAL INSTITUTE INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ONONDAGA ENVIRONMENTAL 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 ONONDAGA ENVIRONMENTAL 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 ONONDAGA ENVIRONMENTAL 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 ONONDAGA ENVIRONMENTAL INSTITUTE INC?
- The 990 for the year ended December 31, 2025 names EDWARD M MICHALENKO PH.
- Who are the officers and directors of ONONDAGA ENVIRONMENTAL INSTITUTE INC?
- The 990 for the year ended December 31, 2025 lists 8 people; 1 received compensation from the organization, the highest $23,755 (EDWARD M MICHALENKO PHD, PRESIDENT).
- How much revenue does ONONDAGA ENVIRONMENTAL INSTITUTE INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $458,814, expenses of $440,774 and total assets of $243,997 at year end.
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