Hunter - Find all the email addresses related to a domain
BuiltWith - Find out the technology behind websites
Snov.io - More leads. More sales. More revenue.
Elucify - A completely free software tool that uses crowdsourced data to find business email addresses
Apollo.io - Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
KiteDesk - Use KiteDesk sales prospecting software to generate leads from our premium data marketplace. Then reach prospects and build a sales pipeline with organized Lead Lists. Syncs direct with CRM too!