Acoustical Material Services (AMS) sells the materials builders need to put a roof over your head -- not to mention hold your whole house together. The company provides acoustical ceiling products, lath and plaster, drywall, doors, and frames, as well as other construction supplies. Customers include large and small contractors, subcontractors, building owners, and dealers. AMS distributes products from about 20 locations in Arizona, California, Hawaii, Nevada, and Utah, as well as Mexico (via AMS De M�xico). It also exports to markets in Guam, Hong Kong, the Philippines, and Taiwan. Chairman Max Gondon founded AMS in 1969. The company was acquired in 2007 by CRH , an Ireland-based building materials maker.