AeroLeads - AeroLeads is a lead generation software which finds prospects with email and phone number.
GetProspect - GetProspect is a Linkedin lead generation tool with email finder.
Hunter - Find all the email addresses related to a domain
Lusha - Search less. Sell more.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Snov.io - More leads. More sales. More revenue.