Mark Siefken has over 25 years of experience in sales management and leadership. Currently serving as the Area Sales Manager at Brulin & Company, Inc. since April 1998, Mark previously held the position of President at Marpro from January 1994 to April 1998. Mark earned a PhD in Organic Chemistry from the University of Wisconsin-Madison, where studies were completed from 1962 to 1967, and holds a degree from North Dakota State University, attended from 1957 to 1961.