Support IOSA - Because Our Waters Can’t Wait
IOSA is built on community - your time, ideas, training hours, and financial support all protect the waters we love. Every drill we run, every piece of equipment we maintain, every volunteer we train helps ensure we're ready when an oil spill threatens our islands.
We're honored to safeguard this spectacular place, and we need your help to keep doing it. Whether you volunteer, donate, or spread the word - it all adds up and it all matters.
Help Us Stay Ready To Protect What Matters Most
Donate By Check
Make checks payable to: Islands' Oil Spill Association and mail to PO BOX 2946, Friday Harbor, WA 98250 (or drop off to our HQ at 532 Shelter Rd, Friday Harbor and enjoy a free tour!)
Donor Advised Funds
IOSA can receive donations made through a donor advised fund. Our Tax ID/EIN is 91-1326241 and our mailing address is PO BOX 2946, Friday Harbor, WA 98250.
Individual Retirement Account (IRA)
If you're 70½ or older on the day of the distribution, you may direct all or some of your IRA, up to $111,000 in 2026, to IOSA through a Qualified Charitable Distribution. This gift counts toward your Required Minimum Distribution and is excluded from your taxable income, even if you don't itemize. Your IRA plan administrator can help you transfer assets directly to Islands' Oil Spill Association.
Employer Matching Gifts
Many employers match their employees' donations to nonprofits. Inquire with your employer's human resources department to learn more. IOSA can receive matching funds through programs like Benevity.
For Estate Planning, Donations of Real Estate, or Gifts of Stock
Please contact us directly at 360-468-3441 or by emailing info@iosaonline.org
IOSA is a 501(c)(3) non-profit, so your contribution is tax deductible. If you’d like more information about our organization or programs, please check out our Candid Profile Online.
Volunteer for IOSA
Volunteer for IOSA by clicking the button below and completing an initial interest survey! It’s not always easy, but the work of IOSA is challenging, interesting, and directly benefits the Salish Sea and the islands we call home.

