eMiner.app - The eMiner is a marketing automation tool that automatically mines public emails on the internet to generate segmented lists of potential customers.

Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.

Zaplify - Personalized Linkedin and email outreach on autopilot

Hunter - Find all the email addresses related to a domain

AnyMailFinder.com - Find anyone's email address

Lead Forensics - B2B website analytics and lead generation.