Text Resize

About Us

1800 19th Street
P.O Box 70
Rock Valley, IA 51247
Telephone: (712) 476-2737
Contact Us
Mark Siemonsma
Director of Development


Direct Line: 712-476-3126

Mark joined the Hope Haven Foundation staff in October of 2004. He has a BA in Journalism from Northwestern College in Orange City, IA, and has completed courses in management from the Graduate School of Business at the University of Pittsburgh. Mark has 30 years of experience in wholesale sales and retail management in the automotive industry. Mark's current duties include overseeing special events, donor relations and planned giving.

Mark, who grew up in Sheldon, IA, is married to Sue. She teaches elementary art at an area school. They have two children and one grandson.

Mark and Sue are currently members of Trinity Christian Reformed Church of Rock Valley. Mark and Sue live in Rock Valley and enjoy living and serving in their community. Mark loves to fish, faithfully supports the University of Iowa athletic programs (Go HAWKS!) and enjoys working their horses with his wife. Joining the staff at Hope Haven fulfills a life long ambition to work for and serve the Lord with a Christian organization. He enjoys meeting new people through his work, as well as helping people of any age understand the importance of planning for their future through planned gifts.