irs program accomplishments · form 990 part iii · fy2024
What they reported doing
- #1 primary $17KTHROUGHOUT EVERY SEASON, THE PRESERVE OFFERS EXCITING AND ENRICHING PROGRAMS FOR EVERY AGE FROM FORMAL SCIENCE EDUCATION FOR CHILDREN AND ADULTS TO WELLNESS PROGRAMS TO OUTDOOR EXPLORATION WITH EXPERT GUIDES TO HELP YOU DISCOVER THE NATURAL BEAUTY OF THE ENVIRONMENT AND CULTRUAL HISTORY OF THE GUGGENHEIM ESTATE AND LEGENDARY GOLD COAST OF LONG ISLAND, NEW YORK.
named programs · 4 · from sources
What they call their work
Goatbusters
Ecological restoration initiative using goats from Green Goats Rhinebeck to control invasive plant species on steep slopes within the preserve
Hempstead House Tours and Events
Guided tours and cultural events hosted at the historic Hempstead House, including concerts and lectures; venue available for private events and film production
Navy Simulation Museum
Exhibits on the history of military simulation technology, including the Link Trainer and Norden Bombsight, housed in Castle Gould; features STEM education and a commercial flight simulator
Phil Dejana Learning Center and Outdoor Classroom
Educational programming for children and adults focusing on science, nature, and cultural history
activities · 9 groups
What they do
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Community Festival & Event Production 1 activity
- Arts and cultural events programmingOrganizes and hosts public cultural events including music concerts such as the summer concert featuring The Everly Set, sculpture installations, and other arts-related programming throughout the year.
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Onsite & Outreach Environmental Education Programs 1 activity
- Educational and cultural programmingProvides year-round educational and cultural programs for all ages, including guided tours, lectures, workshops, family nature programs, after-school classes, and seasonal celebrations. Programs are offered both on-site and online, with self-guided thematic tours covering history, native wildlife, bird watching, and diverse environments, including multilingual access.
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Ecological Habitat Restoration 1 activity
- Environmental conservation and habitat managementConducts active habitat preservation and invasive species control using both staff and volunteer labor, including the deployment of goats to remove invasive plants in steep, hard-to-reach areas. Supports conservation efforts with volunteer-led fencing installation and long-term ecological stewardship of native plant and animal species.
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Guided Historic Site Tours 1 activity
- Historic mansion tours and preservationOffers docent-led and self-guided public tours of historic mansions, including Hempstead House and Falaise, preserving and maintaining these structures as part of the cultural heritage of Long Island's Gold Coast. Falaise, a 13th-century Norman manor-style house built in 1923, is actively preserved and made accessible to the public.
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Historic Aviation and Transportation Museums 1 activity
- Navy Simulation Museum operationsOperates the Navy Simulation Museum on weekends, offering public access to flight simulation exhibits, a commercial-grade flight simulator, and historical artifacts such as an authentic Link Trainer, Norden Bombsight, and MILES equipment. The museum opened to the public on Veterans Day 2024 and includes STEM-focused educational activities for students.
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Event Venue Rental Services 1 activity
- Private and corporate event hostingHosts private and corporate events at the Sands Point Preserve, including weddings, meetings, and special gatherings, utilizing historic buildings such as Hempstead House and Castle Gould. These events serve as both programming offerings and a source of revenue.
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Nature Preserve Management and Public Access 1 activity
- Public access and stewardship of natural and historic groundsProvides year-round public access to 216 acres of natural and landscaped areas, including forests, a freshwater pond, a mile-long beach and cliffs, lawns, gardens, and marked hiking trails, while preserving diverse habitats supporting native plant and animal species. The preserve maintains infrastructure such as the Great Lawn, historic entrance features, and picnic areas with views of historic mansions and the Long Island Sound.
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Spiritual Development & Meditation Programs 1 activity
- Wellness and recreational eventsHosts wellness and fitness activities including monthly evening meditation sessions at Hempstead House, all-day wellness and longevity events such as The IMMERSIV Activation, and fitness classes. Also offers concerts and other cultural events open to the public.
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Uncategorized 1 activity
- Film and television production location managementMakes the Sands Point Preserve, including Hempstead House, available as a location for film and television productions, managed as part of its revenue-generating activities.
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financials · form 990 · fy2024
revenue
Total revenue$2.41M
Contributions & grants$846K35%
Program service revenue$434K18%
Investment income$93K4%
Other revenue$1.04M
expenses
Total expenses$1.73M
Program expenses75%
Admin / overhead21%
Fundraising4%
Salaries & benefits$1.20M
Grants paid out$0
Largest expense lineCompensation
balance sheet
Total assets$4.31M
Cash$3.74M
Investments$0
Liabilities$550K
Net assets$3.76M
Liquid reserves25.9 mo
3 years on record · 2020–2024 · YoY revenue +18.6%
leadership · form 990 part vii · fy2024
Who runs it
paid leadership · 1
| Name | Title | Hours/wk | Compensation |
|---|---|---|---|
| JEREMIAH BOSGANG | EXECUTIVE DI | 40 | $203K |
board members · 13
- ADAM HANFT — BOARD MEMBER
- ALYSON K ADLER — BOARD MEMBER
- ANITA SETHI — BOARD MEMBER
- BRIAN HERRINGTON — BOARD MEMBER
- CHIARA TRENTO MAI — BOARD MEMBER
- DILIA KAMENSKY — BOARD MEMBER
- FRANK C ULLMAN — BOARD MEMBER
- GEORGIA DEYOUNG — BOARD MEMBER
- JACK MANDEL — TREASURER
- JANE STERN — BOARD MEMBER
- JEAN-MARIE POSNER — BOARD MEMBER
- KARLI HAGEDORN — CHAIRMAN
- TREY PAULEY — SECRETARY
relationships · 16
Who they work with
- Augustus N. Allen Government — Architect who designed Castle Gould in 1902
- Bruce A. Blakeman Government — Nassau County Executive affiliated with the organization, indicating a governmental connection.
- Facebook Partner — Uses Facebook for public outreach and dissemination of event announcements.
- Green Goats Rhinebeck Partner — Supplies the herd of goats and provides ongoing expertise and guidance for the invasive species control project.
- Instagram Partner — Uses Instagram for public outreach and dissemination of event announcements.
- NAWCTSD Partner — Provides an authentic Link Trainer on loan for display at the Navy Simulation Museum.
- Nassau County Government — Governmental entity linked to the organization, suggesting public-sector affiliation or support.
- Nassau County Government — Partnered with the organization to acquire and manage the Sands Point Preserve, granting the Conservancy exclusive authority to manage the site.
- Nassau County, NY Government — Owns the 216-acre Sands Point Preserve, which is operated by the Conservancy.
- Nassau County, NY Government — Owns the property on which Hempstead House is located, acquired in 1971.
- Navy Simulation Museum Partner — Collaborates to operate the Navy Simulation Museum on weekends at the preserve.
- Phil Dejana Learning Center Partner — Co-located with picnic areas; shares space with Outdoor Classroom and Woodland Playground
- Polhemus & Coffin Partner — Architectural firm that co-designed Falaise with Frederick J. Sterner.
- Sands Point Preserve Partner — Hosts events and programs in collaboration with the Sands Point Preserve Conservancy.
- Shore and Coccarelli families Partner — Collaborated with the Conservancy to install a sculpture garden honoring artist Jerry Shore.
- US Department of Agriculture Government — Cited as a source for data on open space loss in the United States.
strategies · 3
How they approach the work
Named approaches extracted from this org’s sources. Where others share an approach, follow it to see the full set of orgs running it.
- Community Engagement via Experiential Heritage and STEM Educationmethodology: heritage-based STEM educationBy using site-specific historical and cultural themes—including Gold Coast heritage and military simulation technology—to anchor STEM and immersive learning experiences, the organization deepens public understanding and engagement, because experiential learning rooted in place increases relevance and retention.
- Ecological Stewardship through Sustainable Site Managementmethodology: ecosystem_services-protectionBy protecting open space and using sustainable methods like goat-based invasive species control, the organization maintains ecological function and public benefits such as clean air and water, because regenerative land management strengthens both environmental and community health.
- Reinvented Historic Preservation through Integrated Programmingmethodology: reinvented_historic_preservationBy integrating cultural, educational, and wellness programming into historic sites, the organization makes heritage estates accessible and relevant to the community, because active engagement fosters stewardship and sustains preservation efforts.