North Dakota Barley Council: http://www.ndbarley.net/
Montana Wheat and Barley: https://wbc.agr.mt.gov/
Washington Grain Commission: http://wagrains.org/all-about-wheat/who-buys-washington-wheat/
National Barley Growers Association: https://national-barley.com/
U.S. Grains Council: https://grains.org/buying-selling/barley/
Northern Crops Institute: https://www.northern-crops.com/