MARIN OPEN SPACE TRUST

EIN: 262460667 501(c)(3) Environment

SAN RAFAEL, CA

Total Revenue
$127,747
Total Expenses
$86,850
Total Assets
$686,723
Net Assets
$686,723
🔒

Financial Vulnerability Assessment (Tuckman-Chang)

4 risk indicators measuring financial stability and operational resilience

Sign in with your work email to view Tuckman-Chang indicators

Sign In — Free (10 views/day)

Financial Trends

Organization Details

Formation Year
2008
Legal Domicile
CA
Principal Officer
william Long
Phone
4158842270
Tax Period
2025-01-01 to 2025-12-31

MARIN OPEN SPACE TRUST, founded in 2008, is a small nonprofit in the Environment sector that reported $128K in total revenue in fiscal year 2025. Revenue fell 91% from the prior year — a significant decline worth monitoring. The organization ran a surplus of $41K, a strong 32% operating margin.

Mission

Raise funds to acquire, restore, and protect open space and park lands in Marin County, California, and negotiate acquisitions of lands and conservation easements

Program Service Accomplishments

Program 1
Expenses: $67,183 Revenue: $0

Completed remaining expenses, including establishing a restoration fund, for the 100-acre Wall property open space in Fairfax, California. The property was turned over to the Town of Fairfax for...

Read more

Completed remaining expenses, including establishing a restoration fund, for the 100-acre Wall property open space in Fairfax, California. The property was turned over to the Town of Fairfax for ownership with Marin County Parks and Open Space assuming responsibility for trails.

Program 2
Expenses: $8,365 Revenue: $0

Entered into a purchase and sales agreement, for purchase of a 7-acre hilltop knoll in Fairfax, California and bordering the Town of San Anselmo. The site is contiguous with adjoining open space...

Read more

Entered into a purchase and sales agreement, for purchase of a 7-acre hilltop knoll in Fairfax, California and bordering the Town of San Anselmo. The site is contiguous with adjoining open space. When transactions are completed the property would become part of the Marin County Open Space District.

Program 3
Expenses: $2,438 Revenue: $0

Monitoring of three conservation easements owned by MOST along with protection work at the 135-acre San Geronimo Commons easement. Work on San Geronimo easement involved salmonid habitat enhancement...

Read more

Monitoring of three conservation easements owned by MOST along with protection work at the 135-acre San Geronimo Commons easement. Work on San Geronimo easement involved salmonid habitat enhancement and flood plain restoration.

🔒

Trantor Score

Financial Health Score (300–850) · Liquidity · Solvency · Sustainability · Efficiency

Sign in to view Trantor Score and financial metrics

Liquidity (40%) • Solvency (30%) • Sustainability (20%) • Efficiency (10%)

Sign In — Free (10 views/day)

Financial Overview (2025)

Revenue Breakdown

Contributions & Grants $108,141
Program Service Revenue $0
Investment Income $19,606
Other Revenue $0
TOTAL REVENUE $127,747

Expense Breakdown

Grants Paid $0
Salaries & Benefits $0
Fundraising Expenses $0
Program Expenses $80,790
Other Expenses $86,850
TOTAL EXPENSES $86,850

Year-over-Year Comparison

2025 2024 Change
Revenue $127,747 $1,442,454 -0.9%
Expenses $86,850 $1,557,856 -0.9%
Net Income $40,897 $-115,402 -1.4%
Key Indicators
Grants to Organizations Grants to Individuals Lobbying Political Activity Foreign Activities Donor Advised Fund Schedule B Required
🔒

Financial Health Indicators

Comprehensive financial analysis: Altman Z-Score, liquidity, solvency, sustainability, efficiency, and growth metrics

Financial Distress Indicator

Liquidity & Cash Position

Sign in to view all financial metrics

Altman Z-Score • Liquidity Ratios • Solvency Analysis • Growth Indicators • Efficiency Metrics

Sign In

Governance

Voting Members
7
Independent Members
7
Employees
N/A
Volunteers
7

Governance Policies

Conflict of Interest Policy
Whistleblower Policy
Document Retention Policy

Special Practices & Reported Activities

Operated a School
Operated a Hospital
Provided First Class Travel
Reported Conflict of Interest
Reported Asset Diversion
Excess Benefit Transaction
Made Political Expenditures
Engaged in Lobbying
Operated Donor Advised Fund
Maintained Art Collections
Filed Form 720

Compensation of Officers, Directors & Key Employees

Total Officers
3
$0
Total Directors
7
$0
Key Employees
0
$0
Highest Compensated
0
reported
Name Title Hours/Week Role Reportable Comp Other Comp Total
Steve Petterle Director 1
Director
$0 $0 $0
Joyce Applen Director 1
Director
$0 $0 $0
Don Dickenson Director 5
Director
$0 $0 $0
William Long Chair 12
Officer Director
$0 $0 $0
Ann Thomas Secretary-Treasurer 4
Officer Director
$0 $0 $0
Jonathan Braun Vice Chair 15
Officer Director
$0 $0 $0
Kevin Knowles Director 4
Director
$0 $0 $0
Note: Compensation data is self-reported by the organization on their Form 990. "Reportable Comp" includes salary, bonuses, and other reportable compensation from the organization and related organizations. "Other Comp" includes benefits, deferred compensation, and non-taxable benefits.

Historical Data

Year Revenue Expenses Assets Net Income
2025 $127,747 $86,850 $686,723 $40,897
2024 $1,442,454 $1,557,856 $646,311 $-115,402
2023 $393,742 $862,036 $765,250 $-468,294
2022 $1,237,432 $223,032 $1,228,103 $1,014,400
2021 $63,778 $51,767 $212,196 $12,011
2020 $41,285 $25,196 $200,185 $16,089
Explore More Nonprofits
Top 100 Nonprofits in California Largest U.S. Nonprofits Best Rated Nonprofits Most Efficient Nonprofits

Compare MARIN OPEN SPACE TRUST with other nonprofits in California and across the country.