Claire Costilow

Claire graduated from the University of Oklahoma with a degree in Public Relations and a minor in Spanish. She joined CC4C in 2026, bringing a heart for service and experience across fundraising, donor engagement, marketing, communications, and events. Before moving into the nonprofit sector, Claire began her career at Dell Technologies and later worked on the development and communications team at Side by Side Kids.

 

Claire is deeply passionate about CC4C’s mission. As an Austin native, she is honored to serve children with rare and undiagnosed conditions and their families in her hometown and across Texas, helping bring community, hope, and vital resources to the families CC4C serves.