D&B Hoovers has good legacy data

The most essential field that I'm looking for is email address or some other direct contact. It's becoming harder and harder to get person-to-person contact with people. I find many email addresses are for People to avoid interacting with other people, so finding verified email addresses of people who are actually responding or engaging with emails is tantamount. Because of the way e-mail privacy is working these days, email addresses from people who open their emails is pretty well worthless, I need to know what hours of which days people engage (click) inside their emails.

Indeed, they offer the fields and filters I would expect to have available. However, when I drilled down through those specific selects, I found that much of the personally identifiable information related to particular individuals Is best lacking. Still, very often, or more often than not, it's simply wrong—many, many, many, many, many, many incorrect, inaccurate, or even spam trap emails. They need to clean up their email verification, and add an engagement number that reflects the time of the day on specific days in the week that people engage with specific types of emails.

If you're looking for a comprehensive data set that is extremely accurate on company details, D&B shines. The larger the company or type of company that you're looking for, the better the D&B data is. It's very good at identifying who the key players, and decision makers are. It also excels at identifying the headcount of specific types of companies, and if they have locations domestically and/or internationally, where those locations are located.