Data Quality
When you invest valuable time and money on mailings or sales calls, you need the most accurate data available. That's why it's important to choose infoUSA. Our 600 full-time researchers are solely dedicated to building the data, verifying it and updating it for you. How we compile our data: Each day, infoUSA data specialists scour thousands of sources to add new data, update existing records and eliminate duplicates. Our process is like no other in the industry. In fact, we do something no other company does - we make over 20 million phone calls each year to verify the information.
Our Database & Technology Center in Papillion, Nebraska

Our Business Information: • We split apart and catalogue 5,200 phone books, annual reports and other business directories to find information on nearly every business in the nation. • We hand-key each record and call every business to make sure you have the most reliable information available. • Next, we add public record data from county courthouse filings, SEC and 10k filings, and Secretary of State data. • 50,000 new businesses are added every week from sources such as new business registrations and utility hookups so you can be the first to reach a hot new prospect. • Every month, we match and clean the data with the USPS National Change of Address (NCOA), ZIP+4 and Delivery Sequence File to standardize and keep the addresses accurate. Our Consumer Information: • We split apart and catalogue 4,300 telephone directories. • Data specialists examine each listing and enhance it with buying habit and lifestyle information from real estate transactions, product registrations, magazine subscriptions, and survey responses. • Every week, we also add 300,000 new movers so you have the opportunity to win their business first. • Every month, we match and clean the data with the USPS National Change of Address (NCOA), ZIP+4 and Delivery Sequence File to standardize and keep the addresses accurate.