Beacon Roofing Supply, number three on the 2015 ProSales 100 list, just got a little bit bigger with the acquisition of Dallas, Texas based Roofing & Insulation Supply. Roofing & Insulation Supply has 20 branches nationwide, with 14 branches focusing exclusively on insulation, three on roofing, and three that distribute both.

"We are pleased to join forces with Beacon," wrote founder Sprague Mullikin in a press release. "Being part of the Beacon team will allow RIS to continue our long history of excellent customer service and greatly add to Beacon's existing insulation business."

"We are very excited that RIS has joined the Beacon team," wrote Beacon CEO and president Paul Isabella. RIS will significantly bolster our existing insulation business, which has been a very strong complementary product offering for Beacon for many years, as well as our roofing business in key markets."