Senders - Caller ID for your email
Clearbit Salesforce Prospector - Quickly build targeted lead lists directly in Salesforce
LinkedIn Sales Navigator for Gmail - Rich contact profiles inside Gmail
TrackingSuite - TrackingSuite is an all in one leadgen, website auditing , seo , crm prospecting tool.
RocketReach - RocketReach allows you to lookup email and phone for 250+ million professionals.
UProc for Sheets - Boost your sales, marketing and IT tasks from Google Sheets