Home / About / About the Chamber / Staff Directory Meet Our Staff Staff Directory Jeff Griffin President & CEO jgriffin@siouxfalls.com (605) 373-2000 Jill Blom Graphics & Communications Manager jblom@siouxfalls.com (605) 373-2001 Cory Buck Chief Financial Officer coryb@siouxfalls.com (605) 274-0478 Madi Daniel Administrative Assistant mdaniel@siouxfalls.com 605-336-1620 Jennie Doyen Vice President of Member Services jdoyen@siouxfalls.com (605) 373-2054 Becky Griebel Administrative Assistant bgriebel@siouxfalls.com (605) 336-1620 Brooke Hendrickx Agribusiness Manager bhendrickx@siouxfalls.com (605) 373-2003 Mike Lynch Program Director, Forward Sioux Falls mlynch@siouxfalls.com (605) 373-2008 Pat Lund Member Relations Manager plund@siouxfalls.com (605) 373-2014 Jaci Pieters Young Professionals Network Manager jpieters@siouxfalls.com (605) 373-2002 Holly Rader Vice President of Member Relations hrader@siouxfalls.com (605) 373-2016 Mitch Rave Vice President of Public Policy mrave@siouxfalls.com (605) 373-2004 Carly Reinders Member Services Specialist creinders@siouxfalls.com Teresa Schreier Events Coordinator tschreier@siouxfalls.com (605) 373-2050 Susan Seachris Administrative & Accounting Assistant sseachris@siouxfalls.com (605) 373-2018 Eric Siemers Sales Manager esiemers@siouxfalls.com Aaron Vlasman Public Policy Manager avlasman@siouxfalls.com (605) 373-2006