GAF Roofing
CertainTeed
Owens Corning
Malarkey Roofing Products
US Tile
MCA Clay Roof Tile
Redland Clay Tile
Auburn concrete roof tiles
Eagle Roofing Products
MonierLifetile
Gladding, McBean
Hydro-Stop
Western Colloid Inc.
APOC
Tropical Roofing Products.
Contractors State License Board
Lane-Aire
Cedar Plus
Shakertown
Polyfoam Products, Inc.