Skip to the page content
Your donations
Passes our checks

Arroyo Seco Foundation

EIN 95-4328068 · Pasadena, CA

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

LegitimacyPassesRegistration and standingFinancial healthStrong90 out of 100GovernanceNot ratedThe short tax form does not cover thisImpact evidenceDescribes programsHow well its results are evidenced

What it says it does

ENVIRONMENTAL ADVOCACY, CONSERVATION, AND EDUCATION

Income
$117,193
Spending
$118,465
Reserves
27.9 months of spending
Largest source of income
donations and private grants, 70%

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 90 out of 100. Higher than 67% of charities in its peer group (environment, under $250k).

  • Reserves

    35 of 35

    Spendable reserves would cover 27.9 months of spending.

  • Debt

    20 of 20

    It owes 0% of what it owns.

  • Living within its means

    8 of 15

    Spending exceeded income by 1% of income.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

This organization files the short tax form, which does not ask about boards, policies or audits. That is normal for a small charity and is not a mark against it.

Source: Form 990EZ for the year ending December 31, 2025, 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. $118,465 spent. THE ARROYO SECO FOUNDATION IS AN ENVIRONMENTAL ADVOCACY, CONVERVATION, AND EDUCATIONAL ORGANIZATION. THE FOUNDATION WORKS TO ENCOURAGE GREATER COMMUNITY AWARENESS, BOTH LOCALLY AND WORLDWIDE,OF THE IMPORTANCE OF ENVIRONMENTAL STEWARDSHIP.THE FOUNDATION'S KEY OBJECTIVES ARE TO PROVIDE OUTREACH AND EDUCATION, TO PROMOTE THE USE OF NATIVE PLANTS, TO ENCOURAGE CONSERVATION OF WATER AND OTHER NATURAL RESOURCES, AND TO DEVELOP COMMUNITY FAND INSTITUTIONAL PARTNERSHIPS BOTH LOCALLY AND INTERNATIONALLY, TO ACHIEVE THESE OBJECTIVES.THE FOUNDATION PROPAGATES, DISTRIBUTES, AND SELLS NATIVE PLANTS FOR USE IN HABITAT RESTURATION, FOR USE BY HOMEOWNERS, AND PROVIDES COMMUNITY EDUCATION AND VOLUNTEER PROGRAMS TO ENCOURAGE THE USE OF NATIVE PLANTS THAT WILL ENHANCE THE ECOSYSTEM AND ENCOURAGE LOVAL HABITATS TO THRIVE. THE FOUNDATION ALSO WORKS WITH CITIZEN SCIENTISTS TO MONITOR AQUATIC LIFE AND WATER CONDITIONS IN THE ARROYO SECO WATERSHED, AND IN OTHER CRITICAL ECOSYSTEMS IN CALIFORNIA, THROUGHOUT THE UNITED STATES, AND WORLDWIDE.

Source: Form 990EZ for the year ending December 31, 2025, 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 2025.

    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 November 1991.

    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.