Lead411 provides comprehensive and accurate information about contacts and companies available in the marketplace. They have over 450M contacts, within 20M companies worldwide. Through targeted filters, and sales intelligence data points, customers are able to view complete contact data profiles and find growing companies that are more likely to be in a buying cycle for adding services/solutions.
Their CRM integration is seamless, and this makes a huge difference if you are regularly importing leads.
Norbert is an intelligent lead generation tool that can find anyone's corporate email address and enrich it with data that drives conversion.
It won't blow you away but the accuracy is pretty good, and it has a clean user interface. It's one of the few platforms that doesn't require a subscription - you just pay for however many emails it finds.