Nonprofit · EIN 23-7323476
FLAT ROCK BROOK NATURE ASSOCIATION
Tax-exempt · ENGLEWOOD, NJ 07631
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 (amended) | $1,308,673 | $722,281 | $586,392 | $2,277,003 | $40,013 | $2,236,990 |
| August 31, 2024 | 990 | $758,555 | $664,260 | $94,295 | $1,615,305 | $66,531 | $1,548,774 |
| August 31, 2023 | 990 | $679,110 | $669,872 | $9,238 | $1,418,885 | $18,269 | $1,400,616 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $1,056,871
- of which government grants
- $746,538
- Program service revenue
- $110,631
- Investment income
- $36,610
- Net rental income
- $24,293
- Net gain from sales of assets
- $19,187
- Net income from fundraising events
- $78,298
- Other revenue
- $104,561
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $108,885
- Other salaries and wages
- $278,374
- Salaries, compensation and benefits (total)
- $458,936
- Professional fundraising fees
- $0
- Accounting fees
- $10,758
- Occupancy
- $42,744
- Travel
- $11,423
- Depreciation
- $48,145
- Program services (functional)
- $553,026
- Management and general (functional)
- $111,435
- Fundraising (functional)
- $57,820
Balance sheet and other
- Total assets, start of year
- $1,615,305
- Total assets, end of year
- $2,277,003
- Total liabilities, end of year
- $40,013
- Net assets, end of year
- $2,236,990
- Land, buildings and equipment
- $1,656,333
- Publicly traded securities
- $511,776
- Net assets without donor restrictions
- $1,757,126
- Net assets with donor restrictions
- $479,864
- Gross receipts
- $1,339,610
- Employees
- 16
- Volunteers
- 200
- Year formed
- 1973
- State of legal domicile
- NJ
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 August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| STEPHEN WIESSNER | EXECUTIVE DIRECTOR Trustee or director, Officer | 40 | $90,657 | $17,773 |
| OMRI AMAR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MARIA E ANDREU | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MELINDA DEAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JACQUELINE GUTTMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JARED HARARY | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ANNETTE HOLLANDER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JENNIE KATSAROS | TRUSTEE Trustee or director | 2 | $0 | $0 |
| KAYA KHARIBI-WHYTE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SUSAN KLAUSNER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| OMAR LOPEZ | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DANIELLE NYMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MICHAEL PASSOW | TRUSTEE Trustee or director | 2 | $0 | $0 |
| HENRY PRUITT III | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT REDDIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
9 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SARAH RUSSELL | TRUSTEE Trustee or director | 2 | $0 |
| LOUISE SCHWARTZ | TRUSTEE Trustee or director | 2 | $0 |
| TALIA SHULMAN | TRUSTEE Trustee or director | 2 | $0 |
| LENA SUNG | TRUSTEE Trustee or director | 2 | $0 |
| LAUREN MITCHELL | SECRETARY Trustee or director, Officer | 5 | $0 |
| VASILIOS ZIANGOS | TREASURER Trustee or director, Officer | 5 | $0 |
| KATHLEEN SILBERSTEIN | 1ST VICE PRESIDENT Trustee or director, Officer | 5 | $0 |
| GEORGEANN STARACE | 2ND VICE PRESIDENT Trustee or director, Officer | 5 | $0 |
| CHELSEA GLEIS | PRESIDENT Trustee or director, Officer | 5 | $0 |
990 for the year ended August 31, 2024: 23 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| STEPHEN WIESSNER | EXECUTIVE DIRECTOR Trustee or director, Officer | 40 | $90,657 | $17,773 |
| OMRI AMAR | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MARC FORMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ANNETTE HOLLANDER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TREVOR JADOO | TRUSTEE Trustee or director | 2 | $0 | $0 |
| NINA LARSON | TRUSTEE Trustee or director | 2 | $0 | $0 |
| OMAR LOPEZ | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LAUREN MITCHELL | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DANIELLE NYMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MICHAEL PASSOW | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SANDRA PINTO | TRUSTEE Trustee or director | 2 | $0 | $0 |
| HENRY PRUITT III | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT REDDIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LOUISE SCHWARTZ | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TALIA SHULMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| GEORGEANN STARACE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| CYNTHIA SUMNER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LENA SUNG | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MELINDA DEAN | SECRETARY Trustee or director, Officer | 5 | $0 | $0 |
| VASILIOS ZIANGOS | TREASURER Trustee or director, Officer | 5 | $0 | $0 |
| KATHLEEN SILBERSTEIN | 1ST VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
| PETER JANSEN | 2ND VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
| SUSAN KLAUSNER | PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
990 for the year ended August 31, 2023: 27 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| STEPHEN WIESSNER | EXECUTIVE DIRECTOR Trustee or director, Officer | 40 | $90,575 | $14,792 |
| NINA BACHRACH | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MARC FORMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| CHELSEA GLEIS | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ROBERT GROSS | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JOYCE DUDLEY HAMILTON | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TREVOR JADOO | TRUSTEE Trustee or director | 2 | $0 | $0 |
| OMAR LOPEZ | TRUSTEE Trustee or director | 2 | $0 | $0 |
| DANIELLE NYMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| HENRY PRUITT III | TRUSTEE Trustee or director | 2 | $0 | $0 |
| CHARMAINE RODRIQUES | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ANDREW SARGEANT | TRUSTEE Trustee or director | 2 | $0 | $0 |
| KORYN SCHERMER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LOUISE SCHWARTZ | TRUSTEE Trustee or director | 2 | $0 | $0 |
| LAUREN SHARABI | TRUSTEE Trustee or director | 2 | $0 | $0 |
| CYNTHIA SUMNER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MICHAEL PASSOW | TRUSTEE Trustee or director | 2 | $0 | $0 |
| ANNETTE HOLLANDER | TRUSTEE Trustee or director | 2 | $0 | $0 |
| JOHN KENDRICK | TRUSTEE Trustee or director | 2 | $0 | $0 |
| SCOTT REDDIN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| TALIA SHULMAN | TRUSTEE Trustee or director | 2 | $0 | $0 |
| GEORGEANN STARACE | TRUSTEE Trustee or director | 2 | $0 | $0 |
| MELINDA DEAN | SECRETARY Trustee or director, Officer | 5 | $0 | $0 |
| VASILIOS ZIANGOS | TREASURER Trustee or director, Officer | 5 | $0 | $0 |
| KATHLEEN SILBERSTEIN | 1ST VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
| PETER JANSEN | 2ND VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
| SUSAN KLAUSNER | PRESIDENT Trustee or director, Officer | 5 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 443 VAN NOSTRAND AVE, ENGLEWOOD, NJ 07631-4729
- Principal officer (990 for 2024)
- STEPHEN WIESSNER, 443 VAN NOSTRAND AVENUE, ENGLEWOOD, NJ 07631
- Signed the 990
- STEPHEN WIESSNER, EXECUTIVE DIRECTOR
- Phone
- (201) 567-1265
- Website
- WWW.FLATROCKBROOK.ORG
- Return prepared by
- MALESARDI QUACKENBUSH SWIFT & CO LLC
Mission
TO MAINTAIN THE 150-ACRE PRESERVE AS A NATURAL SANCTUARY FOR PLANTS AND WILDLIFE IN OUR URBAN AREA AND AS A NATURE PRESERVE AVAILABLE TO THE PUBLIC FOR TRAIL WALKS, NATURE STUDY AND OTHER PASSIVE RECREATION.
Program accomplishments
- FLAT ROCK BROOK'S 150 ACRES OF FORESTED LAND IS A UNIQUE SANCTUARY IN A HIGHLY URBANIZED AREA. IT ACTS AS A REFUGE FOR PLANTS AND ANIMAL SPECIES IN AN AREA OTHERWISE LACKING AN ABUNDANCE OF GREEN SPACES. AS STEWARDS OF THE LAND IT IS FLAT ROCK BROOK'S RESPONSIBILITY TO IMPLEMENT PRACTICAL AND EFFECTIVE CONSERVATION AND MANAGEMENT PROJECTS THAT ENSURE A BRIGHT FUTURE FOR THE LAND. ALL OF THESE PROJECTS AND INITIATIVES SHARE A SET OF GOALS; TO INCREASE AND CONSERVE BIODIVERSITY, INCREASE THE VIABILITY OF OUR FOREST AS WILDLIFE HABITAT, AND SUPPORT FOREST REGENERATION AND RE-GROWTH OF NATIVE VEGETATION.Expenses $117,524 · revenue $11,955
- SUMMER NATURE DAY CAMP OFFERS HANDS-ON DISCOVERY AND ADVENTURE AND GAMES FOR CHILDREN.Expenses $21,863 · revenue $77,083
- THROUGH CLASSROOM ACTIVITIES AND GUIDED NATURE HIKES, STUDENTS WILL HAVE REAL-WORLD EXPERIENCES IN NATURE TO SEE HOW THE ROCK CYCLE AND THE WATER CYCLE ARE CONNECTED AS WELL AS HOW CLIMATE CHANGE HAS AFFECTED BOTH OF THESE CYCLES. THESE CLASSES WILL HIKE TO AREAS SUCH AS OUR GLACIER ROCK TO LEARN HOW THE GLACIERS LEFT THEIR MARK, OUR STREAM TO SEE HOW THE WATER HAS ERODED THE ROCK AND STREAM BED, AS WELL AS OUR WETLAND AND ROCK QUARRY POND AREAS. ALL OF THE EDUCATION PROGRAMMING CONDUCTED THROUGH "EARTH'S ROCK AND WATER CYCLE CONNECTION" WILL AIM TO SUPPORT TEACHERS WITH THE NEW CLIMATE CHANGE CURRICULUM AS WELL AS ENHANCE THE SCIENCE AND NATURE WONDER OF STUDENTS.Expenses $16,000 · revenue $16,000
- FLAT ROCK BROOK'S ONSITE AND OUTREACH PROGRAMS BRING NATURE INTO YOUR CLASSROOM. OUTREACH PROGRAMS ARE OFFERED TO SCHOOLS, HOUSES OF WORSHIP, CAMPS, LIBRARIES, SENIOR CENTERS, AND ANY OTHER GROUP THAT WOULD LIKE TO HAVE AN IMMERSIVE LEARNING EXPERIENCE. THE CLASSROOM-BASED OUTREACH PROGRAMS ARE DESIGNED TO INSPIRE RESPECT FOR NATURE.FLAT ROCK OFFERS ONE-HOUR GUIDED NATURE WALKS FOR GROUPS YEAR ROUND. THESE WALKS ARE AVAILABLE TO GROUPS OF CHILDREN FOUR YEARS OR OLDER, YOUTH GROUPS, ADULT GROUPS, AND GROUPS WITH SPECIAL NEEDS. WALKS FOLLOW THE TRAILS AND EXPLORE THE PLANTS AND ANIMALS OF THE POND, FOREST, AND FIELD HABITATS AS WELL AS SEASONAL CHANGES AT THE PRESERVE AND CAN BE CATERED TO THE SPECIFIC NEEDS AND INTERESTS OF EACH GROUP.WE OFFER FUN, NATURE-THEMED BIRTHDAY PARTIES FOR CHILDREN AGES 4 AND OLDER.Expenses $397,639 · revenue $7,563
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 August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 23-7323476
- 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
- 1974
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Animal-related (D340)
- Assets (IRS master file)
- $2,277,003
- Income (IRS master file)
- $1,339,610
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | $1,308,673 | $722,281 | $2,277,003 | XML |
| 990 | August 2024 | $758,555 | $664,260 | $1,615,305 | XML |
| 990 | August 2023 | $679,110 | $669,872 | $1,418,885 | XML |
| 990 | August 2022 | $596,976 | $693,283 | $1,459,499 | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 2019 | – | – | – | IRS |
| 990 | August 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 23-7323476).
Questions about FLAT ROCK BROOK NATURE ASSOCIATION
- What is the EIN of FLAT ROCK BROOK NATURE ASSOCIATION?
- The employer identification number (EIN) of FLAT ROCK BROOK NATURE ASSOCIATION is 23-7323476.
- Is FLAT ROCK BROOK NATURE ASSOCIATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1974.
- Are donations to FLAT ROCK BROOK NATURE ASSOCIATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does FLAT ROCK BROOK NATURE ASSOCIATION 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 FLAT ROCK BROOK NATURE ASSOCIATION due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did FLAT ROCK BROOK NATURE ASSOCIATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of FLAT ROCK BROOK NATURE ASSOCIATION?
- The 990 for the year ended August 31, 2025 names STEPHEN WIESSNER.
- Who are the officers and directors of FLAT ROCK BROOK NATURE ASSOCIATION?
- The 990 for the year ended August 31, 2025 lists 24 people; 1 received compensation from the organization, the highest $90,657 (STEPHEN WIESSNER, EXECUTIVE DIRECTOR).
- How much revenue does FLAT ROCK BROOK NATURE ASSOCIATION have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $1,308,673, expenses of $722,281 and total assets of $2,277,003 at year end.
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