Reference USA

This database contains detailed information on more than 14 million US businesses, 210 million US residents, 855,000 US health care providers, 1.5 million Canadian businesses, and 12 million Canadian households.  Information is compiled from business and residential telephone directories, annual reports, 10-Ks and other SEC information as well as continuing Medical Education (CME) directories, federal, state, provincial, and municipal government data, Chamber of Commerce Information, leading business magazines, trade publications, newsletters, major newspapers, industry and specialty directories, and postal service information.

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