Vice President - Business Development
Marc S. Theisen has more than 25 years of experience in erosion and sediment control and storm water management over six continents. Over his career in these industries, Theisen has acted as a contractor, consultant, distributor and manufacturer. He is responsible for developing new business in emerging market segments while overseeing training and technical assistance for customers, consultants, contractors and colleagues.
Theisen holds a master’s degree in plant ecology from the University of Denver and a bachelor’s degree in environmental biology from the University of Colorado Boulder. He is an active member of the International Erosion Control Association (IECA) and formerly served on its Board of Directors as Technical Vice President. He remains very active with EnviroCert International and ASTM International. He was a founding member of the Erosion Control Technology Council (ECTC). Marc has also served on the board of directors for the Geosynthetic Institute (GSI) and as an executive member of the Geosynthetic Materials Association (GMA).
He holds five patents and has authored numerous publications that have assisted in creating industry standards and growth. In 2018 he earned EnviroCert International’s “Distinguished Service Award” and the IECA “Technical Paper of the Year.” Then, in 2021, Marc was bestowed with the IECA 2021 “Sustained Contributor” Award recognizing his years of service to the industry and the organization. Most recently in 2022, Marc was named “Industry Icon” by Stormwater Solutions magazine.
Contact: (423) 605-5251