TopBuild Corp. (NYSE: BLD), headquartered in Daytona Beach, Florida, is a leading U.S. and Canadian installer of insulation and commercial roofing and a specialty distributor of insulation and related building products, with hundreds of branches and roughly 14,000 employees at year-end 2024. It spun out of Masco in 2015; CEO is Robert M. Buck. Marketing and careers now brand the business as QXO while the TopBuild Workday board remains live.