Kim Heidemann
Executive Director

Kim celebrated 10 years with ISS in November 2014. She holds a BA in History from the University of Iowa, a Secondary Education Degree from Iowa State University (with endorsements in World History, American History and Government), and an MA in Diplomatic Studies from the Diplomatic Academy of London at the University of Westminster.

Kassi Wheeler
International Program Manager

Kassi holds a BS in Anthropology from Iowa State University with a secondary major in International Studies and a minor in both Spanish and Math. Some of her previous work experience includes managing a team of AmeriCorps members, survey and database work for neighborhood revitalization initiatives, and organizing service events. Kassi first became interested in traveling and other cultures through her experience in a youth exchange. She was lucky enough to host one student from Minami-Alps, Japan for 10 days and then the following year she was able to travel to Minami-Alps herself. Kassi is now a traveling enthusiast, a member of YNPN and participates on various sports teams throughout the year including: soccer, volleyball and softball.

Thomas Matysik
Communications Specialist

Thomas joined Iowa Sister States in October 2016. He got his degree in Film and Video from Columbia College Chicago, and got his professional start as the production and social media intern at Maximum Fun, which produces podcasts as well as a public radio show for National Public Radio. He was a long-time volunteer at 826CHI, a nonprofit in Chicago devoted to supporting students and teachers. In his spare time, he enjoys exploring Iowa's bike trails, traveling, and producing podcasts and radio documentaries.

Our Staff


​​​ISS offers internships for current college students and recent graduates in our office in downtown Des Moines. Internships may be tailored to suit a candidate's professional interests or previous experience. Selected interns will have the opportunity to get hands-on experience in an active international non-profit organization. 

All internships are unpaid positions, and we accept applications on a rolling basis. If you have questions about internships, please email Kassi Wheeler.