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Your $1 = $2 for an Entangled Seal

Found with fishing net wrapped around his neck, Gooseneck was in a horrifying situation. Entangled animals like him are often weak, skinny and in urgent need of care.

Today, your gift will be matched dollar-for-dollar. That means you’ll be making twice as many meals and meds possible for an injured animal like Gooseneck.

Get your gift matched
Guadalupe fur seal Gooseneck on an orange heating pad
two California sea lions and one northern fur seal are released back to the wild

The Marine Mammal Center sincerely appreciates and proudly recognizes the generous support received from donors who are helping ensure a healthy ocean for marine mammals and humans alike. 

Together, we are advancing global ocean conservation through marine mammal rescue and rehabilitation, scientific research, and education.

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cover of 2021 impact report with text overlay on sea lion image

Today’s youth are tomorrow’s conservation leaders. Your generosity supports young people on their journey to care for our ocean as passionate, optimistic and resilient advocates. In uncertain times, our educators committed to empowering a community of future ocean stewards all over the world with innovative and mission-driven programs. We are grateful for your contributions.

Jane Choi, M.A.

Strategic Program Development Specialist

We, the volunteers and staff at The Marine Mammal Center, are grateful to all of our donors for their contributions. Thanks to you, we can save the lives of marine mammals and advance global ocean conservation, while enriching our community.

Francisco Curreilche

Rescue and Animal Care Volunteer

Thanks to your generous support, the Center continued to care for many sick and injured marine mammal patients despite the impacts of the pandemic. In Hawai'i, we have continued to respond to Hawaiian monk seals in need and educate hundreds of people, all thanks to you! You are vital to conservation of this endangered species, and we couldn’t be more grateful for your support!

Dr. Sophie Whoriskey, DVM

Hawaiian Monk Seal Conservation Veterinarian

We are so grateful for the support from this dedicated community. It’s what makes it possible to continue advancing global ocean conservation every day. Thank you for making a positive impact on our shared ocean.

Julian Brandes

Board Chair

Thanks to your generous support, we have been able to improve animal care workflows, collect increasingly higher quality data, support research projects with historic and prospective data, and dive into animal stranding trends through adapting our animal records database. Thank you for supporting this cornerstone of our conservation work!

Lian Hortensius, M.S., M.A.

Animal Programs Data Scientist

Since the Center’s founding, our partnership with supporters like you has made countless wins possible—and I cannot thank you enough for that. It’s your unwavering dedication that makes every aspect of this important conservation work possible, resulting in positive influence and impact locally and around the world.

Dr. Jeff Boehm, DVM, Dipl. ACAW


Our Financials

Careful stewardship of our financial resources is key to increasing our impact in the face of ongoing marine mammal health threats and a rapidly changing ocean environment.

This summary of financial information has been extracted from The Marine Mammal Center's audited financial statements, on which an independent public accounting firm, Armanino, expressed an unqualified opinion.

Audited Financial Statements for the Fiscal Year ended September 30, 2022.

Form 990 for the Fiscal Year ended September 30, 2021.

Charity Navigator Four Star Charity
Charity Watch logo
Independent Charities Best in America seal
Guidestar Platinum Seal of Transparency 2023

The Marine Mammal Center Is Proud to Be a Top-Rated Charity

Association of Fundraising Professionals Donor Bill of Rights – The Marine Mammal Center is dedicated to adhering to the AFP's code of ethical conduct.

The Marine Mammal Center is a 501(c)(3) certified organization and is registered in all applicable states. Our tax identification number is 51-0144434.

A copy of the latest financial report, registration filed by this organization, and a description of our programs and activities may be obtained by contacting us at: 2000 Bunker Road, Sausalito, CA 94962 or (415) 289-7335 or The Marine Mammal Center was formed in CA. If you are a resident of one of the following states, you may obtain financial information directly from the state agency:

Florida: A COPY OF THE OFFICIAL REGISTRATION AND FINANCIAL INFORMATION MAY BE OBTAINED FROM THE DIVISION OF CONSUMER SERVICES BY CALLING TOLL-FREE, WITHIN THE STATE, 1-800-435-7352 (800-HELP-FLA), OR VISITING REGISTRATION DOES NOT IMPLY ENDORSEMENT, APPROVAL, OR RECOMMENDATION BY THE STATE. Florida Registration #CH4638. Georgia: A full and fair description of our programs and our financial statement summary is available upon request at our office and phone number indicated above. Maryland: For the cost of copies and postage, from the Office of the Secretary of State, State House, Annapolis, MD 21401. Mississippi: The official registration and financial information of The Marine Mammal Center may be obtained from the Mississippi Secretary of State’s office by calling 1-888-236-6167. Registration by the Secretary of State does not imply endorsement. Nevada: Contributions may be tax deductible pursuant to the provisions of sec. 170(c) of the Internal Revenue Code of 1986, 26 U.S.C. §170(c). New Jersey: INFORMATION FILED WITH THE ATTORNEY GENERAL CONCERNING THIS CHARITABLE SOLICITATION AND THE PERCENTAGE OF CONTRIBUTIONS RECEIVED BY THE CHARITY DURING THE LAST REPORTING PERIOD THAT WERE DEDICATED TO THE CHARITABLE PURPOSE MAY BE OBTAINED FROM THE ATTORNEY GENERAL OF THE STATE OF NEW JERSEY BY CALLING 973-504-6215 AND IS AVAILABLE ON THE INTERNET AT: REGISTRATION WITH THE ATTORNEY GENERAL DOES NOT IMPLY ENDORSEMENT. New York: Upon request, from the Attorney General’s Charities Bureau, 28 Liberty Street, New York, NY 10005, 1-212-416-8686 or North Carolina: Financial information about this organization and a copy of its license are available from the State Solicitation Licensing Branch at 1-919-814-5400. The license is not an endorsement by the state. Pennsylvania: The official registration and financial information of The Marine Mammal Center may be obtained from the Pennsylvania Department of State by calling toll-free, within Pennsylvania, 1-800-732-0999. Registration does not imply endorsement. Virginia: From the State Division of Consumer Affairs, Department of Agricultural and Consumer Services, PO Box 1163, Richmond, VA 23218. Washington: From the Secretary of State at 1-800-332-4483 or West Virginia: West Virginia residents may obtain a summary of the registration and financial documents from the Secretary of State, State Capitol, Charleston, WV 25305. Registration does not imply endorsement. Wisconsin: A financial statement of the charitable organization disclosing assets, liabilities, fund balances, revenue and expenses for the preceding fiscal year will be provided to any person upon request.


Have Questions?

We're happy to help assist you. You can reach us Monday-Friday 8am-5pm PT at (415) 289-7335 or email us at

Or contact us by mail:
The Marine Mammal Center
2000 Bunker Road, Fort Cronkhite
Sausalito, CA 94965

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