Public Charity

FRIENDS OF PRINCETON OPEN SPACE

FRIENDS OF PRINCETON OPEN SPACE is a Public Charity headquartered in PRINCETON, NJ. Financial data from the 2025 filing: $296K revenue, $314K expenses, $3.8M total assets. 24 publicly reported grants to this organization, totaling roughly $540K, appear in IRS filings.

EIN: 237259355 PRINCETON, NJ Environmental Beautification NTEE: C50 Latest filing: 2025
Total Revenue$296K
Total Expenses$314K
Total Assets$3.8M
Grant Records24
Funding Total$540K
Filing Years2021–2025

Mission

IN PRINCETON: ACQUIRING OPEN SPACE FOR PRESERVATION, PROTECTING NATURAL RESOURCES, MAINTAINING ACCESSIBILITY TO TRAILS AND PROVIDING ENVIRONMENTAL EDUCATION. IN THE PRINCETON REGION: WORKING WITH GROUPS TO SUPPORT EFFORTS TO PRESERVE AND PROTECT OPEN SPACE AND THE ENVIRONMENT.

Where $100 goes at Friends of Princeton Open Space

How Friends of Princeton Open Space divides every $100 it spends, from its own Form 990 filings, averaged across 9 years.

$73 Programs the work itself
$26 Management running the organization
$1 Fundraising raising the next dollar

Inside the $73 for programs

$42
Friends of Princeton Open Space protects natural resources by preserving land and managing the billy johnson mountain lakes nature preserve, on which it holds the conservation easements
58% of program spending
$26
Friends of Princeton Open Space has presented educational events and speakers at the billy johnson mountain lakes nature preserve and elsewhere in the community on topics such as…
36% of program spending
$5
Friends of Princeton Open Space board members and volunteers have maintained over 8 miles of trails in mountain lakes open space area and have restored and maintained trails…
6% of program spending
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Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.

Officers & Directors

TRUSTEE Andrea Honore
TRUSTEE Annarie Lyles
VICE-PRESIDE Clark Lennon
TRUSTEE Dana Molina
TRUSTEE Diana Newby
TRUSTEE Eric Tazelaar

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Support
$421,281 18 grants
Education
$25,100 1 grant
Environment & Conservation
$18,500 1 grant
Research & Policy
$8,980 1 grant
Unspecified
$66,500 3 grants

Financial Trends

Year Revenue Expenses Assets
2025 $296K $314K $3.8M
2024 $280K $202K $3.8M
2023 $726K $202K $3.7M
2022 $219K $175K $3.2M
2021 $206K $160K $3.2M

Between 2021 and 2025, reported annual revenue grew from $206K to $296K (+44%), with total assets most recently reported at $3.8M.

Interactive year-over-year charts and full filing details available with membership.

See the full picture for FRIENDS OF PRINCETON OPEN SPACE

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