Clearbit Salesforce Prospector - Quickly build targeted lead lists directly in Salesforce
TrackingSuite - TrackingSuite is an all in one leadgen, website auditing , seo , crm prospecting tool.
Proof - Website conversion rate optimization and visitor monitoring
UProc for Sheets - Boost your sales, marketing and IT tasks from Google Sheets
Drift + Salesforce Integration - Create and track leads from Drift in Salesforce
Email Verification on Google Sheets - An add-on for email verification directly in Google Sheets