We compile our lists from: Credit card transaction data, census info, deed & assessment info, real estate, mail order buyers, new business filings, utility connections, voter registration, public records, call centers and numerous websites. We cannot guarantee the accuracy of the lists furnished and are not liable for any loss caused by our lists. Up to a 10% undeliverable rate is quite normal in the list industry. Businesses change every few minutes and nearly 12% of the consumer population is moving. Our web based generated leads are opt-in and TCPA compliant.