Dun & Bradstreet (D&B) is the foundation of the B2B records in the Business Database. It is derived from a multitude of sources, including government records, licensing boards, municipal directories, telephone and office machine hookups, internet connections and searches, memberships, attendee registers, web site registrations, DBAs, incorporations, yellow page and business white page directories, county courthouse records, Secretary of State data, business magazines and newspapers, subscriptions, annual reports, 10Ks and other SEC filings, postal service information including National Change of Address, ZIP+4 carrier route and Delivery Sequence Files.
This unique file is verified in three distinct ways, based on channel. All postal records are CASS and NCOA certified every 60 days, providing an approximate 95% deliverability rate. Email records are deployed by Exact Data on a daily basis, which allows us to inexpensively verify individual contact records by removing invalid addresses from our file. All email addresses are direct contacts, not generic informational or sales addresses (i.e. firstname.lastname@example.org). Our highest quality telephone records are called quarterly for connectivity and contact accuracy. Download Business Data Master File[PDF]