LinkedIn Sales Navigator for Gmail - Rich contact profiles inside Gmail
ProspectWith - We help you find the right companies to prospect and contact their decision-makers.
Clearbit for Salesforce – Lite - Rich data on every record in Salesforce for free!
Leadfeeder - Leadfeeder converts your website visitors into sales. Connect your website's Google Analytics to Leadfeeder and unlock the power of seeing who`s visiting your site!
Clearbit - Clearbit provides Business Intelligence APIs
The Org - Sharing org charts to make business more transparent