Westcor's a subsidiary of The Macerich Company and owns 18 shopping malls and plazas in the Southwestern region of the United States. It was founded in 1964 by entrepreneur Bob Teske. Headquartered in Phoenix, Arizona, Westcor's Arizona's leading mall developer. It's 16 properties in Arizona and 2 properties in Colorado. Arizona Arrowhead Towne Center: Glendale Biltmore Fashion Park: Phoenix The Borgata: Scottsdale Chandler Fashion Center: Chandler Desert Sky Mall: Phoenix Estrella Falls:… (More on Westcor)