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Children's Oncology Services, Inc. (COSI) believes that a diagnosis of cancer should not prevent a child from experiencing the simple joys of childhood.

I want to stay at camp forever! I want to stay at camp forever! I want to stay at camp forever! I want to stay at camp forever! I want to stay at camp forever!
News & Events 2010 Midwest Poker Invitational

March 1, 2012

Thursday March 1, 2012 at the River East Arts Center, Chicago Compete for over $20,000 in prizes including a $10,000 seat to the World Series of Poker Main Event in Las Vegas. Read more +

 Dude Ranch Spolight Camp

Summer Camp

We are excited about Summer Camp! Swimming in the lake at sunrise, learning to sail, camping out under the stars…these are just some of the memories that many of us have of summer camp. Read more +

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Help COSI By Donating Today!

Your support will help create life-long memories of swimming in the lake, roasting s’mores and singing campfire songs for kids with cancer. Read more +