Founded in 1972, Infogroup Inc, formerly infoUSA Inc, is a compiler of several proprietary databases. The company's databases capture detailed information on the majority of businesses and consumer households in the United States and Canada. Company employees compile and update databases from thousands of public sources, such as public directories, newspapers, incorporation records and real estate deed transfers. For the business database, Infogroup makes more than 20 million phone calls per year to verify the name of the owner or key executive, the address, number of employees, fax numbers and e-mail addresses. The company has also developed proprietary software for direct marketing applications, database marketing applications, e-mail marketing applications, telemarketing applications and other sophisticated modeling applications. More than 4 million people throughout the world subscribe to Infogroup's services. The company is headquartered in Omaha, Neb.