THE MARINE MAMMAL CENTER

SAUSALITO, CA, 94965 (415) 289-7325 Est. 1975 EIN 51-0144434

D30Z - Animal-Related 990 - Public charity return 501(c)(3)

www.marinemammalcenter.org

Mission

THE MARINE MAMMAL CENTER ADVANCES GLOBAL OCEAN CONSERVATION THROUGH MARINE MAMMAL RESCUE AND REHABILITATION, SCIENTIFIC RESEARCH, AND EDUCATION. THE CENTER'S WORK IS GUIDED AND INSPIRED BY A SHARED VISION OF A HEALTHY OCEAN FOR MARINE MAMMALS AND HUMANS ALIKE.

Financials

Total Revenue

$18,607,476

Total Expenses

$23,416,223

Net Assets

$45,264,836

156 employees 1,200 volunteers

From latest filing (tax period ending 2025-09-30)

Financial Health

Operating Reserve

23.2 months Healthy

Net assets / monthly expenses

Year-over-Year Change

Revenue ↓ 18.9%

Expenses ↑ 1.8%

Revenue Sources

Contributions 88.6% Earned revenue 1.7% Investment 8.5% Other 1.0%

Expense Breakdown

Program 79.3% Management 8.7% Fundraising 12.1%

Officers & Key Employees (24)

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Grants Received (620)

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Filing History (8 filings)

Year	Revenue	Expenses	Net Assets
2024 990 - Public charity return Oct 1, 2024 to Sep 30, 2025	$18,607,476 ↓	$23,416,223	$45,264,836
2023 990 - Public charity return Oct 1, 2023 to Sep 30, 2024	$22,939,156 ↑	$22,993,706	$50,070,952
2022 990 - Public charity return Oct 1, 2022 to Sep 30, 2023	$20,472,796 ↓	$20,960,826	$48,905,684
2021 990 - Public charity return Oct 1, 2021 to Sep 30, 2022	$22,610,379 ↑	$17,339,714	$48,505,777
2020 990 - Public charity return Oct 1, 2020 to Sep 30, 2021	$15,865,480 ↓	$14,542,113	$45,861,287
2019 990 - Public charity return Oct 1, 2019 to Sep 30, 2020	$17,788,691 ↑	$14,959,329	$43,436,082
2018 990 - Public charity return Oct 1, 2018 to Sep 30, 2019	$15,290,801 ↑	$14,227,163	$39,791,176
2017 990 - Public charity return Oct 1, 2017 to Sep 30, 2018	$9,621,257	$11,660,779	$38,825,157