AnyMailFinder.com - Find anyone's email address
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Hunter - Find all the email addresses related to a domain
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
AeroLeads - AeroLeads is a lead generation software which finds prospects with email and phone number.
Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.