Public Charity

Elkhorn Slough Foundation

Elkhorn Slough Foundation is a nonprofit organization categorized as Public Charity based in Moss Landing, CA. Its most recent IRS filing (2025) reports revenue of $8.5M, expenses of $5.9M, total assets of $49.7M. Imperigo tracks 52 reported grant relationships connected to this organization totaling approximately $3.1M.

EIN: 942823247 Moss Landing, CA Latest filing: 2025
Total Revenue$8.5M
Total Expenses$5.9M
Total Assets$49.7M
Grant Records52
Funding Total$3.1M
Filing Years2021–2025

Mission

The Elkhorn Slough Foundation's mission is to conserve and restore Elkhorn Slough and its watershed, California's largest tidal salt marsh south of San Francisco Bay. Renowned for its extraordinary biodiversity, Elkhorn Slough features a dynamic working landscape intertwined with rich natural habitats. To achieve its mission, the Elkhorn Slough Foundation focuses on the direct acquisition and stewardship of key lands while collaborating with partnerorganizations and agencies. Together, they advance sound scientific research, deliver impactful education programs, and foster meaningful community engagement. As an accredited organization through the Land Trust Alliance Accreditation Commission, the Foundation upholds the highest standards in conservation and land stewardship.

Sample Grants Received

2024
For grant recipient's exempt purposes
$624,275
2024
GENERAL OPERATING SUPPORT, CAPITAL CAMPAIGN
$316,955
$100,000
2024
PUBLIC, SOCIETAL BENEFIT
$52,566
2024
OPERATING SUPPORT
$30,000

Showing up to 5 of 52 total records — full history available with membership.

Officers & Directors

Trustee Anne Secker
Secretary Becky Suarez
Trustee Bruce Welden
Treasurer David Warner
Trustee Emmett Linder
Trustee Gary Bloom

Officer compensation and complete director data available with membership.

Top Grant Purposes

For grant recipient's exempt purposes
$730,175 9 grants
FOR GENERAL OPERATING SUPPORT
$578,527 2 grants
GENERAL OPERATING SUPPORT, CAPITAL CAMPAIGN
$316,955 1 grant
PUBLIC, SOCIETAL BENEFIT
$245,766 6 grants
FOR GENERAL SUPPORT, AMPHIBIAN RESEARCH AND MONITORING, AND HISTORIC PRESERVATION
$199,392 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $8.5M $5.9M $49.7M
2024 $9.7M $5.4M $46.8M
2023 $5.2M $4.6M $42.6M
2022 $4.6M $4.1M $41.3M
2021 $6.3M $4.8M $43.5M

Between 2021 and 2025, reported annual revenue grew from $6.3M to $8.5M (+37%), with total assets most recently reported at $49.7M.

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

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