Marin Conservation League
Only null% goes to programs Strong reserves Growing revenue
Marin Conservation League is a 501(c)(3) organization based in San Rafael, California, registered in 1953, with $686,180 in FY2025 revenue. CharityIndex grades it B.
175 N Redwood Dr Ste 135, San Rafael, CA, 94903 EIN 94-6089780 Since 1953
Revenue (FY2025)
$686K
▼ 17.5% vs prior year
Environment median: $250K
Expenses (FY2025)
$391K
Net assets
$4.1M
Employees
—
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
B
—Program efficiency40% of the ratingNo expense breakdown in filings
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for Marin Conservation League— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
B+Financial health25% of the rating125 mo reserves · +43% margin
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For Marin Conservation League: 125 mo reserves · +43% margin earns a B+ on this criterion. See the exact thresholds →
—Governance25% of the ratingNot reported in this filing type
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for Marin Conservation League— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
CTransparency10% of the rating2 of 5 disclosure signals
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For Marin Conservation League: 2 of 5 disclosure signals earns a C on this criterion. See the exact thresholds →
Show this grade on your website
A live seal — it updates automatically when the grade changes and links donors to this verified profile.
Contact & location
- Address
- 175 N Redwood Dr Ste 135, San Rafael, CA, 94903
- City
- San Rafael
- State
- California
- Category
- Environment
- Subcategory
- Natural Resources Conservation
- Website
- …
Financial trends
Revenue grew from $286K (FY2014) to $686K (FY2025) across 12 reported years.
Financial snapshot
Financial health & position (FY2025)
Liabilities $11KNet assets $4.1M
Operating margin
43.1%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$4.1M
Total liabilities
$11K
Net assets
$4.1M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2025 | $686,180▼17.5% | $390,688▲21.9% | $4,084,952▲13.8% | $4,096,435▲14.0% | 990 |
| 2024 | $831,992▲212% | $320,418▲9.3% | $3,590,838▲18.4% | $3,592,520▲18.5% | 990 |
| 2023 | $267,026▼42.8% | $293,090▲0.9% | $3,032,355▲13.7% | $3,032,691▲12.9% | 990 |
| 2022 | $466,782▼7.3% | $290,494▲4.4% | $2,667,634▼14.3% | $2,686,664▼13.8% | 990 |
| 2021 | $503,351▼23.7% | $278,201▲0.8% | $3,114,348▲10.2% | $3,117,308▲10.2% | 990 |
| 2020 | $659,604▲89.1% | $276,076▼1.6% | $2,825,332▲7.1% | $2,828,265▲7.1% | 990 |
| 2019 | $348,859▲3.8% | $280,634▲12.1% | $2,638,890▲16.3% | $2,641,790▲16.2% | 990 |
| 2018 | $335,955▲47.4% | $250,433▲7.2% | $2,269,112▼7.9% | $2,274,072▼7.9% | 990 |
| 2017 | $227,921▼16.3% | $233,541▼0.4% | $2,464,279▲12.5% | $2,469,678▲12.5% | 990 |
| 2016 | $272,164▲19.6% | $234,440▼14.5% | $2,191,303▲8.0% | $2,196,143▲8.3% | 990 |
| 2015 | $227,567▼20.5% | $274,158▲29.3% | $2,028,350▼4.8% | $2,028,705▼4.9% | 990 |
| 2014 | $286,330 | $212,029 | $2,130,516 | $2,133,498 | 990 |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
Grants received · $399K total
28 grants to Marin Conservation League totaling $399K, reported by foundations on their Schedule I filings — showing the 15 most recent.
| Grantmaker | Purpose | Year | Amount |
|---|---|---|---|
| Resources Legacy Fund | Land or marine conservation, climate change, and/or environmental equity and justice | 2024 | $10,000 |
| San Francisco Foundation | For general support. | 2023 | $19,877 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2023 | $8,550 |
| San Francisco Foundation | Advised - for general support. | 2022 | $19,042 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2022 | $8,300 |
| Donor Advised Charitable Giving | Environmental and animals | 2021 | $21,800 |
| Network For Good Inc | Unrestricted | 2021 | $19,386 |
| San Francisco Foundation | Advised - for general support. | 2021 | $16,861 |
| Network For Good Inc | Unrestricted | 2020 | $17,429 |
| San Francisco Foundation | Advised - for general operating support. | 2020 | $16,655 |
| Marin Community Foundation | General operating support | 2020 | $6,500 |
| San Francisco Foundation | For general support. | 2019 | $21,943 |
| Network For Good Inc | Unrestricted | 2019 | $15,736 |
| Marin Community Foundation | Provide general operating support | 2019 | $6,950 |
| San Francisco Foundation | For general support. | 2018 | $21,550 |
Similar organizations in Environment
Environment
Climate First Replacing Oil & Gas
Ojai, CA
$685K
Bannual revenue
Environment
Walter Munk Foundation For the Oceans
La Jolla, CA
$693K
Bannual revenue
Environment
Wild Farm Alliance
Aromas, CA
$700K
C+annual revenue
Environment
California Native Garden Foundation
San Jose, CA
$667K
C+annual revenue
- Environment
Southern California Water Coalition Inc
Corona, CA
$665K
C+annual revenue
- Environment
Mothers of the Amazon Inc
Topanga, CA
$711K
C+annual revenue
- Environment
Ridges To Riffles Indigenous Conservation Group
Eureka, CA
$712K
C+annual revenue
Environment
San Bernardino Valley Conservation Trust
Redlands, CA
$659K
C+annual revenue
Environment
Tree San Diego
San Diego, CA
$716K
Bannual revenue
Environment
Climate Defense Project
Laguna Beach, CA
$716K
Bannual revenue
Compare Marin Conservation League
Frequently asked questions
- Is Marin Conservation League a legitimate nonprofit?
- Yes. Marin Conservation League is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 94-6089780, based in San Rafael, California. Donations are tax-deductible.
- What is Marin Conservation League's EIN?
- Marin Conservation League's Employer Identification Number (EIN) is 94-6089780.
- How much revenue does Marin Conservation League report?
- Marin Conservation League reported $686,180 in total revenue on its fiscal year 2025 IRS Form 990 filing.
- What financial grade does Marin Conservation League have?
- CharityIndex grades Marin Conservation League B, based on financial health (reserves and operating margin).
More nonprofits in San Rafael
Explore more
Data for Marin Conservation League (EIN 94-6089780) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.