Lusha is a continuously updating database that provides B2B Salespeople with targeted, accurate, and timely business information. Lusha aggregates its data from multiple sources, cross-checking and updating LIVE to ensure up-to-the-minute data accuracy and database cleanliness.
CampaignKit - Email Validation for marketers. Detect invalid and malicious email addresses in your email lists.
Hunter - Find all the email addresses related to a domain
MailRefine - Decrease Email Bouncing With Best Email Verifier
Apollo.io - Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
Sender Policy Framework - This is a diagnostic tool that acts as a Sender Policy Framework (SPF) record lookup
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.