ABC Supply announced today it has opened three greenfield branches in San Diego; Seattle; and Mankato, Minn.

Joey King will manage the San Diego branch, Andrew Matthews will run the operation in Seattle, and Brett Coleman will be in charge of the Mankato facility.

Beloit, Wis.-based ABC Supply is the biggest company on the ProSales 100, with more than $7.17 billion in sales in 2016. It's also one of the fastest-growing, having added a dozen branches last year and drywall specialist L&W Supply the year before. The roofing specialist has close to 720 locations nationwide.