The 10 Largest Inc. 5000 Companies
2. ABC Supply
CEO: David Luck
Three-Year Growth: 73.4 percent
2012 Revenue: $4.7 billion
ABC Supply was founded in Beloit, Wisconsin in 1982 and has since grown into the largest wholesale distributor of roofing supplies in the United States and one of the nation’s largest distributors of windows, siding, and other exterior building products. ABC Supply's founder, the late billionaire Ken Hendricks, was honored as Inc.'s Entrepreneur of the Year in 2006. Read his inspiring story here.