Contractors in the Upper Midwest and Prairie regions of Canada can go to Brock White Company if they need specialty construction products including brick, stone, specialty chemicals, waterproofing materials, and masonry accessories. Its Canadian locations also supply mechanical insulation and roofing products. The distribution company operates from some 20 locations in the US and Canada, as well as through catalogs and the Internet. Customers include commercial, residential, road and bridge, and erosion control construction companies. The company was founded in 1954 by George White and Wayne Brock, two former chemical engineering classmates at the University of Minnesota.