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Sonoma Ecology Center

EIN 94-3136500 · Eldridge, CA

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthWeak47 out of 100GovernanceStrong100 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

The Mission of Sonoma Ecology Center is to work with our community to enhance and sustain ecological health in the Sonoma valley.

Income
$5.9 million
Spending
$6.1 million
Spent on programs
85%
Reserves
0.1 months of spending
Largest source of income
government grants, 64%
Employees
69
Volunteers
300
Highest pay
$98,323, executive dir.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Weak: 47 out of 100. Higher than 10% of charities in its peer group (environment, $1m to $10m).

  • Reserves

    4 of 35

    Spendable reserves would cover 0.1 months of spending.

  • Debt

    5 of 20

    It owes 67% of what it owns.

  • Living within its means

    8 of 15

    Spending exceeded income by 3% of income.

  • Income trend

    15 of 15

    Income rose 66% on the year before.

  • Spending floor

    15 of 15

    85% of spending went to programs and raising each dollar of donations cost 8 cents.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 100 out of 100. Higher than 60% of charities in its peer group (environment, $1m to $10m).

  • Independent board

    25 of 25

    9 of 12 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (1)
  1. $5.2 million spent. Created partnership with State of CA to keep state parks open to the general public, led a partnership to operate Sugarloaf Ridge State Park. Reached over 1500 K-12 students with quality science education, linking lessons & field trips to places in the community. Provided Vocational Traing for teens as Enviroleader interns. Created a partnership with over 20 local organizations known as Sonoma Valley Collaborative to address intersecting challenges of the business, nonprofit, and citizen community. Leadership in Biochar research & development of Biomass production. Stewardship programs cleaning up local waterways. Monitored riparian & wildlife corridors. Leadership & Outreach for reducing fire fuels & creating Resilient Landscapes utilizing natives from our in-house nursery. Supported the community with Science & Stewardship to assist with a changing climate.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated November 6, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending December 2024.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since March 1996.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated November 4, 2026.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.