Nonprofit · EIN 52-1053406
OPEN SPACE INSTITUTE INC
Tax-exempt · NEW YORK, NY 10018
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990 | $6,858,272 | $3,655,960 | $3,202,312 | $23,289,878 | $15,811,224 | $7,478,654 |
| December 31, 2023 | 990 | $5,880,714 | $6,178,116 | -$297,402 | $20,160,830 | $12,023,637 | $8,137,193 |
Financial details: 990 for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $6,172,466
- of which government grants
- $9,425
- Program service revenue
- $360,080
- Investment income
- $457,365
- Net rental income
- $36,344
- Net gain from sales of assets
- $122,696
- Net income from fundraising events
- -$171,048
- Other revenue
- -$131,639
Expenses
- Grants and similar amounts paid
- $587,815
- Compensation of officers, directors and key employees
- $661,302
- Other salaries and wages
- $627,623
- Salaries, compensation and benefits (total)
- $1,469,495
- Professional fundraising fees
- $0
- Legal fees
- $25,885
- Accounting fees
- $11,439
- Occupancy
- $253,900
- Travel
- $120,854
- Depreciation
- $18,035
- Program services (functional)
- $2,192,204
- Management and general (functional)
- $376,778
- Fundraising (functional)
- $1,086,978
Balance sheet and other
- Total assets, start of year
- $20,160,830
- Total assets, end of year
- $23,289,878
- Total liabilities, end of year
- $15,811,224
- Net assets, end of year
- $7,478,654
- Land, buildings and equipment
- $4,896,385
- Publicly traded securities
- $2,064,050
- Net assets without donor restrictions
- $4,325,649
- Net assets with donor restrictions
- $3,153,005
- Gross receipts
- $7,188,380
- Employees
- 86
- Volunteers
- 27
- Year formed
- 1974
- 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, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| TALLY BLUMBERG | EXECUTIVE VICE PRESIDENT Officer | 2 | $353,363 | $50,481 |
| LARS KULLESEID | PRESIDENT & CEO (INCOMING 04/24) Officer | 2 | $354,094 | $36,660 |
| NATHAN BERRY | CHIEF LAND, PROTECTION OFFICER Officer | 2 | $357,268 | $26,147 |
| EILEEN LARABEE | CHIEF EXTERNAL AFFAIRS OFFICER Officer | 2 | $312,955 | $51,264 |
| CHRISTOPHER J ELLIMAN | PRESIDENT & CEO (OUTGOING 05/24) Officer | 2 | $317,173 | $29,550 |
| LESLEY KANE SZYNAL | DIRECTOR OF OUTDOORS AMERICA Highest-paid employee | 2 | $318,451 | $12,000 |
| SAMAYLA DEUTCH | SVP, GENERAL COUNSEL Officer | 2 | $270,153 | $37,295 |
| ALICE GLEASON | SVP FOR FINANCE & CFO Officer | 2 | $264,789 | $27,146 |
| KATHLEEN MOSER | CHIEF CONSERVATION/POLICY Officer | 2 | $276,027 | $12,000 |
| ROBERT K ANDERBERG | SVP, GENERAL COUNSEL Officer | 2 | $248,235 | $37,972 |
| JEFFREY LEJAVA | VICE PRES. & ASSOCIATE GEN. COUNSEL Officer | 2 | $229,264 | $47,515 |
| JENNIE GREER | SVP OF PHILANTHROPY Officer | 2 | $222,219 | $43,386 |
| MARIA WHITEHEAD | VP OF LAND, SOUTHEAST Officer | 2 | $213,119 | $48,973 |
| NICK RICHARDSON | SVP, CAPITAL STRATEGIES Officer | 2 | $210,480 | $44,565 |
| PETER KARIS | VP, PARKS AND STEWARDSHIP Officer | 2 | $183,679 | $48,973 |
37 more people on this return
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| REBEKAH GERARD | SR. DIR OF ADMIN (OUTGOING 12/24) Highest-paid employee | 2 | $201,968 | $29,760 |
| IRENE LEE | VP OF LAND, NORTHEAST Officer | 2 | $172,418 | $50,243 |
| ABIGAIL WEINBERG | VP OF SCIENCE & CONSERVATION POLICY Officer | 2 | $171,040 | $48,039 |
| DAVID KIERAN-KAUFMAN | VICE PRESIDENT AND ASSISTANT GENERAL COUNSEL Officer | 2 | $167,900 | $47,582 |
| MAY MAY CHENG | VICE PRESIDENT, CONTROLLER Officer | 2 | $158,698 | $44,488 |
| JESSICA WATSON | VP OF CONSERVATION COMMUNITIES Officer | 2 | $139,282 | $52,230 |
| MICHAEL BADEN | SR. DIR OF ADMINISTRATION Highest-paid employee | 2 | $145,112 | $37,177 |
| BRADFORD BURNS | STAFF ATTORNEY Highest-paid employee | 2 | $170,370 | $7,933 |
| MELANIE GRIFFIN | SR. DIR OF INSTITUTIONAL GIVING Highest-paid employee | 2 | $143,492 | $24,834 |
| AMELIA SALZMAN | CO-CHAIRPERSON OF THE BOARD Trustee or director, Officer | 3 | $0 | $0 |
| ANSON FRELINGHUYSEN | MEMBER Trustee or director | 1 | $0 | $0 |
| CAROL ASH | VICE-CHAIRPERSON OF THE BOARD Trustee or director, Officer | 1 | $0 | $0 |
| CAROLYN NIEMCZYK | MEMBER Trustee or director | 1 | $0 | $0 |
| DALE S BRYK | MEMBER Trustee or director | 1 | $0 | $0 |
| DOUGLAS BATESON | MEMBER Trustee or director | 1 | $0 | $0 |
| ELIZABETH BORDEN | MEMBER Trustee or director | 1 | $0 | $0 |
| GIGI MORTIMER | MEMBER Trustee or director | 1 | $0 | $0 |
| GIORGIOS VLAMIS | MEMBER Trustee or director | 1 | $0 | $0 |
| HOLLY HEGENER | MEMBER Trustee or director | 1 | $0 | $0 |
| HUME R STEYER | SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| JOHN ERNST | MEMBER Trustee or director | 1 | $0 | $0 |
| JOHN H ADAMS | CO-CHAIR OF THE BOARD (OUTGOING) Trustee or director, Officer | 3 | $0 | $0 |
| JOHN P CAHILL | MEMBER Trustee or director | 1 | $0 | $0 |
| JOSHUA GINSBERG PHD | MEMBER Trustee or director | 1 | $0 | $0 |
| JUDE WU ABEL | MEMBER Trustee or director | 1 | $0 | $0 |
| KATHERINE O ROBERTS | MEMBER Trustee or director | 1 | $0 | $0 |
| LEA PAINE HIGHET | MEMBER Trustee or director | 1 | $0 | $0 |
| LEISLE LIN | MEMBER Trustee or director | 1 | $0 | $0 |
| MARJORIE VAN DERCOOK | MEMBER Trustee or director | 1 | $0 | $0 |
| NICOLE HYLTON-PATTERSON | MEMBER Trustee or director | 1 | $0 | $0 |
| PATRICIA F SULLIVAN | MEMBER Trustee or director | 1 | $0 | $0 |
| RICHARD REMMER | MEMBER Trustee or director | 1 | $0 | $0 |
| SAMUEL G HUBER | MEMBER Trustee or director | 1 | $0 | $0 |
| SUSAN BABCOCK | MEMBER Trustee or director | 1 | $0 | $0 |
| T JEFFERSON CUNNINGHAM III | MEMBER Trustee or director | 1 | $0 | $0 |
| THOMAS MCHENRY | MEMBER Trustee or director | 1 | $0 | $0 |
| YUKI MOORE LAURENTI | MEMBER Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2023: 50 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CHRISTOPHER J ELLIMAN | PRESIDENT AND CEO Officer | 2 | $575,272 | $61,581 |
| TALLY BLUMBERG | EXECUTIVE VICE PRESIDENT Officer | 2 | $367,462 | $55,753 |
| NATHAN BERRY | CHIEF LAND, PROTECTION OFFICER Officer | 2 | $346,337 | $39,750 |
| GARRAUD ETIENNE | CHIEF OPERATION OFFICER (OUTGOING) Officer | 2 | $320,090 | $27,813 |
| EILEEN LARABEE | CHIEF EXTERNAL AFFAIRS OFFICER Officer | 2 | $273,869 | $56,195 |
| LESLEY KANE SZYNAL | DIRECTOR OF OUTDOORS AMERICA Highest-paid employee | 2 | $307,753 | $12,000 |
| SAMAYLA DEUTCH | SVP, GENERAL COUNSEL Officer | 2 | $272,209 | $38,115 |
| ALICE GLEASON | SVP FOR FINANCE & CFO Officer | 2 | $261,212 | $27,428 |
| ROBERT K ANDERBERG | SVP, GENERAL COUNSEL Officer | 2 | $240,652 | $41,901 |
| LORIJEANE MOODY | SVP OF DEVELOPMENT (OUTGOING) Officer | 2 | $228,569 | $51,981 |
| KATHLEEN MOSER | CHIEF CONSERVATION/POLICY OFFICER Officer | 2 | $267,960 | $12,000 |
| JEFFREY LEJAVA | VP & ASSOCIATE GENERAL COUNSEL Officer | 2 | $223,038 | $44,803 |
| PETER KARIS | VP, PARKS AND STEWARDSHIP Officer | 2 | $174,874 | $54,196 |
| MARIA WHITEHEAD | VP OF LAND, SOUTHEAST Officer | 2 | $168,349 | $54,195 |
| IRENE LEE | VP OF LAND, NORTHEAST Officer | 2 | $160,366 | $57,162 |
| REBEKAH GERARD | SENIOR DIRECTOR OF ADMINISTRATION Highest-paid employee | 2 | $182,405 | $28,877 |
| ABIGAIL WEINBERG | DIRECTOR OF RESEARCH Highest-paid employee | 2 | $157,889 | $48,849 |
| DAVID KIERAN-KAUFMAN | STAFF ATTORNEY Highest-paid employee | 2 | $152,072 | $54,195 |
| MAY MAY CHENG | CONTROLLER AND ASSISTANT TREASURER Officer | 2 | $135,614 | $53,681 |
| BRADFORD BURNS | STAFF ATTORNEY Highest-paid employee | 2 | $165,356 | $0 |
| JENNIE GREER | SVP OF PHILANTHROPY Officer | 2 | $78,164 | $24,862 |
| PETER HOWELL | EXE VP CONSERV CAP. & RE (OUTGOING) Officer | 2 | $30,515 | $1,973 |
| NICK RICHARDSON | SVP, CAPITAL STRATEGIES Officer | 2 | $16,957 | $3,244 |
| AMELIA SALZMAN | CO-CHAIRPERSON OF THE BOARD Trustee or director, Officer | 3 | $0 | $0 |
| ANSON FRELINGHUYSEN | MEMBER Trustee or director | 1 | $0 | $0 |
| CAROL ASH | VICE-CHAIRPERSON OF THE BOARD Trustee or director, Officer | 1 | $0 | $0 |
| CAROLYN NIEMCZYK | MEMBER Trustee or director | 1 | $0 | $0 |
| DALE S BRYK | MEMBER Trustee or director | 1 | $0 | $0 |
| DOUGLAS BATESON | MEMBER Trustee or director | 1 | $0 | $0 |
| ELIZABETH BORDEN | MEMBER Trustee or director | 1 | $0 | $0 |
| GILMAN S BURKE | MEMBER (OUTGOING) Trustee or director | 1 | $0 | $0 |
| GIORGIOS VLAMIS | MEMBER Trustee or director | 1 | $0 | $0 |
| HOLLY HEGENER | MEMBER Trustee or director | 1 | $0 | $0 |
| HUME R STEYER | SECRETARY Trustee or director, Officer | 1 | $0 | $0 |
| JOHN ERNST | MEMBER Trustee or director | 1 | $0 | $0 |
| JOHN H ADAMS | CO-CHAIRPERSON OF THE BOARD Trustee or director, Officer | 1 | $0 | $0 |
| JOHN P CAHILL | MEMBER Trustee or director | 1 | $0 | $0 |
| JOSHUA GINSBERG PHD | MEMBER (TREASURER JAN-JUN 2023) Trustee or director, Officer | 1 | $0 | $0 |
| JUDE WU ABEL | MEMBER Trustee or director | 1 | $0 | $0 |
| KATHERINE O ROBERTS | MEMBER Trustee or director | 1 | $0 | $0 |
| LEA PAINE HIGHET | MEMBER Trustee or director | 1 | $0 | $0 |
| LESLIE G KOCH | MEMBER (OUTGOING) Trustee or director | 1 | $0 | $0 |
| MARJORIE VAN DERCOOK | MEMBER Trustee or director | 1 | $0 | $0 |
| NICOLE HYLTON-PATTERSON | MEMBER Trustee or director | 1 | $0 | $0 |
| PATRICIA F SULLIVAN | MEMBER Trustee or director | 1 | $0 | $0 |
| SAMUEL G HUBER | MEMBER Trustee or director | 1 | $0 | $0 |
| SUSAN BABCOCK | MEMBER Trustee or director | 1 | $0 | $0 |
| T JEFFERSON CUNNINGHAM III | MEMBER Trustee or director | 1 | $0 | $0 |
| THOMAS MCHENRY | TREASURER (JUN-DEC 2023) Trustee or director | 1 | $0 | $0 |
| YUKI MOORE LAURENTI | MEMBER Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 1370 BROADWAY FL 5, NEW YORK, NY 10018-7350
- Principal officer (990 for 2024)
- LARS ERIK KULLESEID, 1370 BROADWAY 5TH FLOOR, NEW YORK, NY 100187799
- Signed the 990
- ALICE GLEASON, CFO
- Phone
- (212) 290-8200
- Return prepared by
- CBIZ ADVISORS LLC
Mission
OSI PROTECTS LAND FOR CLEAN DRINKING WATER, PUBLIC RECREATION, HEALTHY COMMUNITIES, AND WILDLIFE HABITAT; AND TO CONSERVE INTACT FORESTS AND FLOODPLAINS THAT CAPTURE AND STORE CARBON AND PROTECT AGAINST INCREASINGLY DANGEROUS WEATHER EVENTS.
Program accomplishments
- CONSERVATION COMMUNITIES: OPEN SPACE INSTITUTE, INC. (OSI) SUPPORTS GRASSROOTS ORGANIZATIONS AND PROMOTES THE DEVELOPMENT OF YOUNG ENVIRONMENTAL LEADERS WITHIN THE FIELD OF CONSERVATION. ITS CITIZEN ACTION PROGRAM SUPPORTS NEWLY FORMED LOCAL ENVIRONMENTAL GROUPS, 31 GROUPS IN 2024. THE MALCOLM GORDON CHARITABLE FUND AWARDS GRANTS TO NONPROFITS WITHIN THE HUDSON VALLEY REGION AND PROVIDED NINE GRANTS IN 2024. WHILE THE GEOGRAPHIC AND MISSION ALIGNED BARNABAS MCHENRY HUDSON RIVER VALLEY AWARDS PROGRAM PROVIDES GRANTS TO STUDENTS WHO ARE ACTIVELY WORKING TO IMPROVE THEIR LOCAL COMMUNITIES AND LOCAL COMMUNITIES, SIX GRANTS WERE AWARDED IN 2024. LIKEWISE, OSI'S CONSERVATION FELLOWSHIP ENCOURAGES YOUNG LEADERS TO PURSUE CAREERS IN CONSERVATION.Expenses $2,119,912 · grants $515,523 · revenue $360,080
- THROUGH ITS SUPPORTING ORGANIZATION, THE OPEN SPACE INSTITUTE LAND TRUST (OSILT), OSI SAVES LAND TO PROTECT WATER SOURCES; CREATE AND MAKE PUBLIC LAND MORE INVITING FOR ALL; MAINTAIN HEALTHY FORESTS; MITIGATE THE EFFECTS OF EXTREME WEATHER; PROVIDE WILDLIFE HABITAT; AND STRENGTHEN COMMUNITIES. WORKING ACROSS THE EASTERN UNITED STATES, OSILT ACHIEVES THESE GOALS THROUGH FACILITATED LARGE-SCALE CONSERVATION PROJECTS; DIRECT ACQUISITION AND CONSERVATION EASEMENTS; AND GRANTS AND LOANS. IN 2024, OSILT PROTECTED 12,084 ACRES WITH A FAIR MARKET VALUE OF $80.59 MILLION AND MADE 23 CAPITAL GRANTS TOTALING $3.7 MILLION, PROTECTING 6,878 ACRES IN SEVEN STATES WITH A FAIR MARKET VALUE OF $37.9 MILLION. FURTHER, OSI DIRECTLY APPROVED EIGHT GRANTS FOR CONSERVATION PLANNING TOTALING $109,275.Expenses $72,292 · grants $72,292
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 | Not 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
- 52-1053406
- 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
- 1966
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C30)
- Assets (IRS master file)
- $23,289,878
- Income (IRS master file)
- $7,188,380
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2024 | $6,858,272 | $3,655,960 | $23,289,878 | XML |
| 990 | December 2023 | $5,880,714 | $6,178,116 | $20,160,830 | XML |
| 990 | December 2022 | $2,141,539 | $1,715,812 | $10,990,806 | 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 52-1053406).
Questions about OPEN SPACE INSTITUTE INC
- What is the EIN of OPEN SPACE INSTITUTE INC?
- The employer identification number (EIN) of OPEN SPACE INSTITUTE INC is 52-1053406.
- Is OPEN SPACE INSTITUTE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1966.
- Are donations to OPEN SPACE INSTITUTE INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does OPEN SPACE 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 OPEN SPACE INSTITUTE 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 OPEN SPACE INSTITUTE INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2024.
- Who is the principal officer of OPEN SPACE INSTITUTE INC?
- The 990 for the year ended December 31, 2024 names LARS ERIK KULLESEID.
- Who are the officers and directors of OPEN SPACE INSTITUTE INC?
- The 990 for the year ended December 31, 2024 lists 52 people; 24 received compensation from the organization, the highest $353,363 (TALLY BLUMBERG, EXECUTIVE VICE PRESIDENT).
- How much revenue does OPEN SPACE INSTITUTE INC have?
- On its 990 for the year ended December 31, 2024 it reported revenue of $6,858,272, expenses of $3,655,960 and total assets of $23,289,878 at year end.
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