International Aluminum Corporation is an integrated building products manufacturer of diversified lines of quality aluminum and vinyl building products. The Company is headquartered in Monterey Park, California and has approximately 1,600 employees. Operations are conducted through 12 North American subsidiaries throughout the United States and Canada.

IAC serves the residential side of the building industry through its wholly owned subsidiary, International Window Corporation (IWC). IWC distributes aluminum and vinyl windows throughout the Western United States and has manufacturing plants in California and Arizona. IAC serves the commercial side of the industry through it wholly owned subsidiaries United States Aluminum Corporation (USAC) and RACO Interior Products. USAC manufactures aluminum curtain wall, storefronts, entrance doors and other high performance commercial products while RACO manufactures interior doors and doorframes. IAC also owns International Extrusion Corporation that operates aluminum extrusion facilities in Texas and California.