Sleeknote - Set up lead capture forms on your website in minutes. No coding required. Sync your new email leads with your favorite email service provider. Try for free.

Hunter - Find all the email addresses related to a domain

POPUPSMART - A no-code tool to increase e-commerce sales, build email lists and engage with your visitors in just 5-minutes.

Apollo.io - Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.

OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.

Icypeas - This email finder has the capacity to bypass catch-alls