Our premium business mailing lists and information are created by one of the largest list compilers in the U.S. The data uses more than 5,000 phone books, annual reports and other business directories to find information on nearly every business in the nation. Each business record is hand-entered and each business in the list is phone-verified to make sure you have reliable information. Records include data from county courthouse filings, SEC and 10k filings, and secretary of state data where applicable. There are tens of thousands of new businesses added each week from sources like new business registrations and new utility accounts. All records are matched and updated using data from the USPS National Change of Address (NCOA), ZIP+4 and Delivery Sequence File to standardize and keep the addresses accurate. More than 20 million phone calls every year to verify the accuracy of this business data. This is where additional information such as key contacts, number of employees and primary SIC codes are accumulated.