The Matthew Larson Foundation for Pediatric Brain Tumors, or IronMatt, was founded in 2007 to overcome pediatric brain tumors and help the children and families affected by them. 

We’re building a network committed to reducing family hardship, funding pediatric brain tumor research, and giving children the opportunity to swim, bike, and run until they’re 70, not 7.

With your help, we can increase the number of families supported and broaden the scope of research to end pediatric brain tumors.

IronMatt is a 100% model charity.
Candid: Platinum Seal of Transparency - 2025
Charity Navigator: 4-Star Charity with 100% rating 

OUR MISSION
Matt Larson was just 7 years old when he lost his battle with this devastating diagnosis. 

Throughout his ordeal, the Larsons were blessed with an incredible team of doctors, nurses, friends, family, and a community who were there for them every step of the way. 

They realized Matt’s diagnosis would have been much more difficult without the amazing resources and support they had received. They also knew many families aren’t as fortunate. 

The Larsons decided to invest their own frustrations, fears, and hope for an eventual cure into the Matthew Larson Foundation for Pediatric Brain Tumors.

Through Matthew’s story and your generous support and contributions, we hope to help the growing number of families facing this crisis while also funding the crucial medical research needed to find a cure. 

Every child should look forward to a long, adventurous life.

Won’t you join us on this mission?

IronMatt

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