Donation Details

All donations to Big Climb are 100% tax-deductible. If you'd like to make an offline donation, please mail any checks to the address below, with a note indicating which team or participant you'd like to receive credit.

Due to COVID-19 our offices are temporarily closed and staff are working remotely. Please send any corredpondence and donations to:

LLS Washington/Alaska - Attn: Big Climb Seattle

P.O. Box 102488

Pasadena, CA 91189-2488



LLS's tax ID number: 13-5644916

The final fundraising deadline for Big Climb 2021 is June 30, 2021.


Please review the Leukemia & Lymphoma Society's Refund Policy here.

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Matching Gifts

We encourage all donors to see if their company matches gifts which can often double, or even triple, a donation! Check to see whether your employer participates in a matching gifts program, and make sure you request and complete all required documentation from your company to make a submission.

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Please forward all matching gift email confirmations including your name and Big Climb Seattle in the email to MatchingGifts@lls.org in order for a participant to receive credit for the match.

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