Home / About / About the Chamber / Staff Directory Meet Our Staff Staff Directory Jeff Griffin President & CEO jgriffin@siouxfalls.com (605) 373-2000 Joan Bartling Vice President of Finance & Accounting jbartling@siouxfalls.com (605) 373-2020 Jill Blom Graphics & Communication Manager jblom@siouxfalls.com (605) 373-2001 Casey Boerger Young Professionals Network Manager cboerger@siouxfalls.com (605) 373-2002 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 Executive Director, Forward Sioux Falls mlynch@siouxfalls.com (605) 373-2008 Pat Lund Member Relations Manager plund@siouxfalls.com (605) 373-2014 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 Teresa Schreier Events Coordinator tschreier@siouxfalls.com (605) 373-2050 Susan Seachris Administrative & Accounting Assistant sseachris@siouxfalls.com (605) 373-2018