Matching Gifts and Workplace Giving
Employer Matching Gifts
You may be able to double, or even triple, the impact of your gift with a match from your employer!
Did you know that many companies offer matching gift opportunities and volunteer grant programs to encourage philanthropy among their employees? Some companies will even match gifts made by spouses and retirees.
When you request a donation match for your gift to The Marine Mammal Center, you will ensure this critical rescue and rehabilitation, research, and education work continues, protecting the health of our ocean, marine mammals and people alike for generations to come.
Use the search tool below to see if your employer can match your donation.

Double Your Gift!
You may be able to give 2x the meals and medicine for patients in need

When submitting a matching gift through your employer, you may need the following information:
Federal Tax ID Number: 51-0144434
Mailing Address
The Marine Mammal Center
2000 Bunker Road
Fort Cronkhite
Sausalito, CA 94965-2619
Contact
Phone: (415) 289-7338
Email: give@tmmc.org
Workplace Giving and Federal Campaigns
Does your company or employer conduct a workplace giving campaign (also called employee charitable fund drive) that allows you to designate The Marine Mammal Center for a one-time gift or payroll deduction?
Workplace giving campaigns are a convenient and economical way to give, allowing donors to spread out payroll deductions over the course of the year. The Marine Mammal Center depends on significant pledge revenue from various workplace giving campaigns, including United Way and the Combined Federal Campaign (CFC), as well as state, municipal and independent corporate campaigns nationwide.
Most campaigns are conducted in the fall, between Labor Day and Thanksgiving. Be sure to look for The Marine Mammal Center in your company's brochure. If the Center is not listed in your brochure, make sure your local United Way will honor "donor choice" before you sign up, and if there is any question about that, visit the United Way website or give to the Center directly.

The Marine Mammal Center is a proud participant in:
- United Way
- Combined Federal Campaign (CFC #10467)
- Local Independent Charities of America
- Independent Charities of America
- Animal Funds of America
Are you already a workplace giving campaign donor? If so, thank you for choosing The Marine Mammal Center.
If you would like us to know that you are a donor, simply send us your name and address, and mention that you give through workplace giving.
If you have any questions about your gift, please contact us at (415) 289-7338 or give@tmmc.org.
Employer Matching Gift FAQ
What are employee matching gift programs?
What are employee matching gift programs?
Employee matching gift programs are corporate giving programs in which a company matches donations made by employees to eligible nonprofit organizations. It's an easy way to double the impact of your contribution to the Center.
What are volunteer grant programs?
What are volunteer grant programs?
Volunteer grant programs are corporate giving programs in which companies provide monetary donations to organizations where employees volunteer regularly. If you volunteer with us, it's an easy way to make an even greater impact.
Activities eligible for volunteer grants may include:
- Event volunteering
- Skill-based volunteering
- Volunteer committees
- Administrative volunteering
How is this information obtained?
How is this information obtained?
We partner with a company called Double the Donation. If you see anything that should be changed, please email Double the Donation's team at data@doublethedonation.com
How do I request a matching gift or volunteer grant?
How do I request a matching gift or volunteer grant?
Requesting a matching gift or volunteer grant is normally a quick process that must be initiated by the donor/volunteer. You can do this by filling out and submitting a paper match form provided by your employer or through an electronic submission process. Please use the search tool for employer-specific information.
How do I submit a matching gift?
How do I submit a matching gift?
Submitting a matching gift request is simple. Follow these steps:
- Donate to The Marine Mammal Center.
- Log into your employer’s matching gift submission website (if you use the Double the Donation search tool, you will receive a follow-up email linking to this page).
- Once logged in, search for The Marine Mammal Center.
- Select the Center from the search results. If it is not found, manually enter our details.
- Register your donation.
- Submit the completed matching gift request to your employer.
What if I submit my matching gift or volunteer grant outside of The Marine Mammal Center’s online donation form or dedicated matching gifts page?
What if I submit my matching gift or volunteer grant outside of The Marine Mammal Center’s online donation form or dedicated matching gifts page?
If you submit your matching gift or volunteer grant outside of the Centers’ online donation form or dedicated matching gifts page, contact us directly to notify us of the request, so we may track the matching funds as needed.
What if I forget to submit my matching gift request?
What if I forget to submit my matching gift request?
If you forget to submit your matching gift after selecting your employer at the time of donation, you will receive a series of auto-generated emails prompting you to submit your match. The majority of companies offer an all-electronic matching gift submission process.
Are matching gifts and volunteer grants tax-deductible?
Are matching gifts and volunteer grants tax-deductible?
While your donation to a 501(c)3 organization is tax-deductible, your matching gift is not tax-deductible. Only your contributions are eligible for tax deduction. Each party involved (yourself and your employer) can only take deductions for contributions they directly made to the nonprofit.
What if I still have questions?
For questions regarding your employer’s programs, please contact your employer's human resources or community giving department.
For questions regarding submitting a matching gift or volunteer grant request to us, please contact us at (415) 289-7338 or give@tmmc.org.