Small Public Charity

THE HYDROUS

THE HYDROUS is a nonprofit organization categorized as Small Public Charity based in SAN FRANCISCO, CA. Its most recent IRS filing (2025) reports revenue of $47K, expenses of $119K, total assets of $62K. Imperigo tracks 11 reported grant relationships connected to this organization totaling approximately $390K.

EIN: 465112972 SAN FRANCISCO, CA Community Improvement & Capacity Building N.E.C. NTEE: S99 Latest filing: 2025
Total Revenue$47K
Total Expenses$119K
Total Assets$62K
Grant Records11
Funding Total$390K
Filing Years2021–2025

Mission

THE HYDROUS IS AN EDUCATION-CENTERED NONPROFIT ORGANIZATION DEDICATED TO TRANSLATING SCIENTIFIC DISCOVERY IN OUR OCEAN INTO PUBLIC UNDERSTANDING. OUR MISSION IS TO CREATE "OPEN ACCESS OCEANS" SO THAT ALL PEOPLE MAY EXPLORE, UNDERSTAND, AND ENGAGE WITH BEAUTIFUL AND THREATENED MARINE INVIRONMENTS.

Officers & Directors

TREASURER Andrea Contreras
CEO Dr Erika Woolsey Peterson
BOARD CHAIR Dr Kristina Woolsey
BOARD MEMBER Eric Rieseberg
BOARD MEMBER Sylvester Spencer-Lee
SECRETARY Wesley Della Volla

Officer compensation and complete director data available with membership.

Top Grant Purposes

For grant recipient's exempt purposes
$123,400 6 grants
SUSTAINABLE ENVIRONMENT
$100,000 1 grant
Education Grant
$99,999 1 grant
Our Changing Planet
$35,825 1 grant
Programs
$18,600 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $47K $119K $62K
2024 $238K $185K $135K
2023 $133K $363K $111K
2022 $90K $544K $310K
2021 $1.1M $357K $793K

Between 2021 and 2025, reported annual revenue declined from $1.1M to $47K (-96%), with total assets most recently reported at $62K.

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

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