UpLead is a B2B prospecting platform that provides B2B contact & company data. Features include real-time email verification, contacts in over 200 countries, 50+ search criteria, technology tracking, account based marketing, competitor intelligence, email pattern intelligence, social profile links, Salesforce & 12 other CRM integrations, and a robust API.
We like the intuitive user interface, and it's also nice how they flag contacts that are potentially not up-to-date, so you don't waste your credits!
ZoomInfo is a growth acceleration platform delivering accurate and actionable contact and business information to empower your sales, marketing, and recruiting teams.
This one's for the big boys. It's not cheap, but Zoominfo is one of the market leaders when it comes to enterprise data needs.